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<title>8.&nbsp;Contract DSL</title><link rel="stylesheet" type="text/css" href="css/manual-multipage.css"><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="multi_spring-cloud-contract.html" title="Spring Cloud Contract"><link rel="up" href="multi_spring-cloud-contract.html" title="Spring Cloud Contract"><link rel="prev" href="multi__stub_runner_for_messaging.html" title="7.&nbsp;Stub Runner for Messaging"><link rel="next" href="multi__customization.html" title="9.&nbsp;Customization"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">8.&nbsp;Contract DSL</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="multi__stub_runner_for_messaging.html">Prev</a>&nbsp;</td><th width="60%" align="center">&nbsp;</th><td width="20%" align="right">&nbsp;<a accesskey="n" href="multi__customization.html">Next</a></td></tr></table><hr></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="_contract_dsl" href="#_contract_dsl"></a>8.&nbsp;Contract DSL</h1></div></div></div><div class="important" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Important"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Important]" src="images/important.png"></td><th align="left">Important</th></tr><tr><td align="left" valign="top"><p>Remember that, inside the contract file, you have to provide the fully
<title>8.&nbsp;Contract DSL</title><link rel="stylesheet" type="text/css" href="css/manual-multipage.css"><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="multi_spring-cloud-contract.html" title="Spring Cloud Contract"><link rel="up" href="multi_spring-cloud-contract.html" title="Spring Cloud Contract"><link rel="prev" href="multi__stub_runner_for_messaging.html" title="7.&nbsp;Stub Runner for Messaging"><link rel="next" href="multi__customization.html" title="9.&nbsp;Customization"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">8.&nbsp;Contract DSL</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="multi__stub_runner_for_messaging.html">Prev</a>&nbsp;</td><th width="60%" align="center">&nbsp;</th><td width="20%" align="right">&nbsp;<a accesskey="n" href="multi__customization.html">Next</a></td></tr></table><hr></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="_contract_dsl" href="#_contract_dsl"></a>8.&nbsp;Contract DSL</h1></div></div></div><p>Spring Cloud Contract supports out of the box 2 types of DSL. One written in
<code class="literal">Groovy</code> and one written in <code class="literal">YAML</code>.</p><p>If you decide to write the contract in Groovy, do not be alarmed if you have not used Groovy
before. Knowledge of the language is not really needed, as the Contract DSL uses only a
tiny subset of it (only literals, method calls and closures). Also, the DSL is statically
typed, to make it programmer-readable without any knowledge of the DSL itself.</p><div class="important" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Important"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Important]" src="images/important.png"></td><th align="left">Important</th></tr><tr><td align="left" valign="top"><p>Remember that, inside the Groovy contract file, you have to provide the fully
qualified name to the <code class="literal">Contract</code> class and <code class="literal">make</code> static imports, such as
<code class="literal">org.springframework.cloud.spec.Contract.make { &#8230;&#8203; }</code>. You can also provide an import to
the <code class="literal">Contract</code> class: <code class="literal">import org.springframework.cloud.spec.Contract</code> and then call
<code class="literal">Contract.make { &#8230;&#8203; }</code>.</p></td></tr></table></div><p>Contract DSL is written in Groovy, but do not be alarmed if you have not used Groovy
before. Knowledge of the language is not really needed, as the Contract DSL uses only a
tiny subset of it (only literals, method calls and closures). Also, the DSL is statically
typed, to make it programmer-readable without any knowledge of the DSL itself.</p><div class="tip" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Tip"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Tip]" src="images/tip.png"></td><th align="left">Tip</th></tr><tr><td align="left" valign="top"><p>Spring Cloud Contract supports defining multiple contracts in a single file.</p></td></tr></table></div><p>The Contract is present in the <code class="literal">spring-cloud-contract-spec</code> module of the
<a class="link" href="https://github.com/spring-cloud/spring-cloud-contract/tree/master/spring-cloud-contract-verifier" target="_top">Spring
Cloud Contract Verifier repository</a>.</p><p>The following is a complete example of a contract definition:</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
<code class="literal">Contract.make { &#8230;&#8203; }</code>.</p></td></tr></table></div><div class="tip" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Tip"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Tip]" src="images/tip.png"></td><th align="left">Tip</th></tr><tr><td align="left" valign="top"><p>Spring Cloud Contract supports defining multiple contracts in a single file.</p></td></tr></table></div><p>The following is a complete example of a Groovy contract definition:</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
request {
method <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'PUT'</span>
url <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'/api/12'</span>
@@ -50,16 +49,60 @@ Cloud Contract Verifier repository</a>.</p><p>The following is a complete exampl
response {
status <span class="hl-number">200</span>
}
}</pre><div class="note" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Note"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="images/note.png"></td><th align="left">Note</th></tr><tr><td align="left" valign="top"><p>The preceding example does not contain all the features of the DSL appear. The
remainder of this section describes the other features.</p></td></tr></table></div><p>You can compile Contracts to WireMock stubs mapping using standalone maven command:
<code class="literal">mvn org.springframework.cloud:spring-cloud-contract-maven-plugin:convert</code></p><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_limitations_2" href="#_limitations_2"></a>8.1&nbsp;Limitations</h2></div></div></div><div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Warning"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Warning]" src="images/warning.png"></td><th align="left">Warning</th></tr><tr><td align="left" valign="top"><p>Spring Cloud Contract Verifier does not properly support XML. Please use JSON or
}</pre><p>The following is a complete example of a YAML contract definition:</p><pre class="programlisting">description: Some description
name: some name
priority: 8
ignored: true
request:
url: /foo
queryParameters:
a: b
b: c
method: PUT
headers:
foo: bar
fooReq: baz
body:
foo: bar
matchers:
body:
- path: $.foo
type: by_regex
value: bar
headers:
- key: foo
regex: bar
response:
status: 200
headers:
foo2: bar
foo3: foo33
fooRes: baz
body:
foo2: bar
foo3: baz
matchers:
body:
- path: $.foo2
type: by_regex
value: bar
- path: $.foo3
type: by_command
value: executeMe($it)
headers:
- key: foo2
regex: bar
- key: foo3
command: andMeToo($it)</pre><div class="tip" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Tip"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Tip]" src="images/tip.png"></td><th align="left">Tip</th></tr><tr><td align="left" valign="top"><p>You can compile contracts to stubs mapping using standalone maven command:
<code class="literal">mvn org.springframework.cloud:spring-cloud-contract-maven-plugin:convert</code></p></td></tr></table></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_limitations_2" href="#_limitations_2"></a>8.1&nbsp;Limitations</h2></div></div></div><div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Warning"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Warning]" src="images/warning.png"></td><th align="left">Warning</th></tr><tr><td align="left" valign="top"><p>Spring Cloud Contract Verifier does not properly support XML. Please use JSON or
help us implement this feature.</p></td></tr></table></div><div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Warning"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Warning]" src="images/warning.png"></td><th align="left">Warning</th></tr><tr><td align="left" valign="top"><p>The support for verifying the size of JSON arrays is experimental. If you want
to turn it on, please set the value of the following system property to <code class="literal">true</code>:
<code class="literal">spring.cloud.contract.verifier.assert.size</code>. By default, this feature is set to <code class="literal">false</code>.
You can also provide the <code class="literal">assertJsonSize</code> property in the plugin configuration.</p></td></tr></table></div><div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Warning"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Warning]" src="images/warning.png"></td><th align="left">Warning</th></tr><tr><td align="left" valign="top"><p>Because JSON structure can have any form, it can be impossible to parse it
properly when using the <code class="literal">value(consumer(&#8230;&#8203;), producer(&#8230;&#8203;))</code> notation in <code class="literal">GString</code>. That
properly when using the Groovy DSL and the <code class="literal">value(consumer(&#8230;&#8203;), producer(&#8230;&#8203;))</code> notation in <code class="literal">GString</code>. That
is why you should use the Groovy Map notation.</p></td></tr></table></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_common_top_level_elements" href="#_common_top_level_elements"></a>8.2&nbsp;Common Top-Level elements</h2></div></div></div><p>The following sections describe the most common top-level elements:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><a class="xref" href="multi__contract_dsl.html#contract-dsl-description" title="8.2.1&nbsp;Description">Section&nbsp;8.2.1, &#8220;Description&#8221;</a></li><li class="listitem"><a class="xref" href="multi__contract_dsl.html#contract-dsl-name" title="8.2.2&nbsp;Name">Section&nbsp;8.2.2, &#8220;Name&#8221;</a></li><li class="listitem"><a class="xref" href="multi__contract_dsl.html#contract-dsl-ignoring-contracts" title="8.2.3&nbsp;Ignoring Contracts">Section&nbsp;8.2.3, &#8220;Ignoring Contracts&#8221;</a></li><li class="listitem"><a class="xref" href="multi__contract_dsl.html#contract-dsl-passing-values-from-files" title="8.2.4&nbsp;Passing Values from Files">Section&nbsp;8.2.4, &#8220;Passing Values from Files&#8221;</a></li><li class="listitem"><a class="xref" href="multi__contract_dsl.html#contract-dsl-http-top-level-elements" title="8.2.5&nbsp;HTTP Top-Level Elements">Section&nbsp;8.2.5, &#8220;HTTP Top-Level Elements&#8221;</a></li></ul></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="contract-dsl-description" href="#contract-dsl-description"></a>8.2.1&nbsp;Description</h3></div></div></div><p>You can add a <code class="literal">description</code> to your contract. The description is arbitrary text. The
following code shows an example:</p><pre class="programlisting"> org.springframework.cloud.contract.spec.Contract.make {
following code shows an example:</p><p><b>Groovy DSL.&nbsp;</b>
</p><pre class="programlisting"> org.springframework.cloud.contract.spec.Contract.make {
description(<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">''</span><span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'
</span>given:
An input
@@ -68,23 +111,81 @@ when:
then:
Output
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">''</span><span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">')
</span> }</pre></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="contract-dsl-name" href="#contract-dsl-name"></a>8.2.2&nbsp;Name</h3></div></div></div><p>You can provide a name for your contract. Assume that you provided the following name:
</span> }</pre><p>
</p><p><b>YAML.&nbsp;</b>
</p><pre class="programlisting">description: Some description
name: some name
priority: 8
ignored: true
request:
url: /foo
queryParameters:
a: b
b: c
method: PUT
headers:
foo: bar
fooReq: baz
body:
foo: bar
matchers:
body:
- path: $.foo
type: by_regex
value: bar
headers:
- key: foo
regex: bar
response:
status: 200
headers:
foo2: bar
foo3: foo33
fooRes: baz
body:
foo2: bar
foo3: baz
matchers:
body:
- path: $.foo2
type: by_regex
value: bar
- path: $.foo3
type: by_command
value: executeMe($it)
headers:
- key: foo2
regex: bar
- key: foo3
command: andMeToo($it)</pre><p>
</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="contract-dsl-name" href="#contract-dsl-name"></a>8.2.2&nbsp;Name</h3></div></div></div><p>You can provide a name for your contract. Assume that you provided the following name:
<code class="literal">should register a user</code>. If you do so, the name of the autogenerated test is
<code class="literal">validate_should_register_a_user</code>. Also, the name of the stub in a WireMock stub is
<code class="literal">should_register_a_user.json</code>.</p><div class="important" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Important"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Important]" src="images/important.png"></td><th align="left">Important</th></tr><tr><td align="left" valign="top"><p>You must ensure that the name does not contain any characters that make the
generated test not compile. Also, remember that, if you provide the same name for
multiple contracts, your autogenerated tests fail to compile and your generated stubs
override each other.</p></td></tr></table></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="contract-dsl-ignoring-contracts" href="#contract-dsl-ignoring-contracts"></a>8.2.3&nbsp;Ignoring Contracts</h3></div></div></div><p>If you want to ignore a contract, you can either set a value of ignored contracts in the
plugin configuration or set the <code class="literal">ignored</code> property on the contract itself:</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
override each other.</p></td></tr></table></div><p><b>Groovy DSL.&nbsp;</b>
</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
name(<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"some_special_name"</span>)
}</pre><p>
</p><p><b>YAML.&nbsp;</b>
</p><pre class="programlisting">name: some name</pre><p>
</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="contract-dsl-ignoring-contracts" href="#contract-dsl-ignoring-contracts"></a>8.2.3&nbsp;Ignoring Contracts</h3></div></div></div><p>If you want to ignore a contract, you can either set a value of ignored contracts in the
plugin configuration or set the <code class="literal">ignored</code> property on the contract itself:</p><p><b>Groovy DSL.&nbsp;</b>
</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
ignored()
}</pre></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="contract-dsl-passing-values-from-files" href="#contract-dsl-passing-values-from-files"></a>8.2.4&nbsp;Passing Values from Files</h3></div></div></div><p>Starting with version <code class="literal">1.2.0</code>, you can pass values from files. Assume that you have the
}</pre><p>
</p><p><b>YAML.&nbsp;</b>
</p><pre class="programlisting">ignored: true</pre><p>
</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="contract-dsl-passing-values-from-files" href="#contract-dsl-passing-values-from-files"></a>8.2.4&nbsp;Passing Values from Files</h3></div></div></div><p>Starting with version <code class="literal">1.2.0</code>, you can pass values from files. Assume that you have the
following resources in our project.</p><pre class="programlisting">&#9492;&#9472;&#9472; src
&nbsp;&nbsp;&nbsp; &#9492;&#9472;&#9472; <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">test</span>
&nbsp;&nbsp;&nbsp; &nbsp;&nbsp; &#9492;&#9472;&#9472; resources
&nbsp;&nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &#9492;&#9472;&#9472; contracts
&nbsp;&nbsp;&nbsp; &#9500;&#9472;&#9472; readFromFile.groovy
&nbsp;&nbsp;&nbsp; &#9500;&#9472;&#9472; request.json
&nbsp;&nbsp;&nbsp; &#9492;&#9472;&#9472; response.json</pre><p>Further assume that your contract is as follows:</p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">import</span> org.springframework.cloud.contract.spec.Contract
&nbsp;&nbsp;&nbsp; &#9492;&#9472;&#9472; response.json</pre><p>Further assume that your contract is as follows:</p><p><b>Groovy DSL.&nbsp;</b>
</p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">import</span> org.springframework.cloud.contract.spec.Contract
Contract.make {
request {
@@ -102,11 +203,20 @@ Contract.make {
contentType(textPlain())
}
}
}</pre><p>Further assume that the JSON files is as follows:</p><p><span class="strong"><strong>request.json</strong></span></p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"status"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"REQUEST"</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">}</span></pre><p><span class="strong"><strong>response.json</strong></span></p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"status"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"RESPONSE"</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">}</span></pre><p>When test or stub generation takes place, the contents of the file is passed to the body
of a request or a response. That works because of the <code class="literal">file(&#8230;&#8203;)</code> method. The argument of
that method needs to be a file with location relative to the folder in which the contract
lays.</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="contract-dsl-http-top-level-elements" href="#contract-dsl-http-top-level-elements"></a>8.2.5&nbsp;HTTP Top-Level Elements</h3></div></div></div><p>The following methods can be called in the top-level closure of a contract definition.
<code class="literal">request</code> and <code class="literal">response</code> are mandatory. <code class="literal">priority</code> is optional.</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
}</pre><p>
</p><p><b>YAML.&nbsp;</b>
</p><pre class="programlisting">request:
method: GET
url: /foo
bodyFromFile: request.json
response:
status: 200
bodyFromFile: response.json</pre><p>
</p><p>Further assume that the JSON files is as follows:</p><p><span class="strong"><strong>request.json</strong></span></p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"status"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"REQUEST"</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">}</span></pre><p><span class="strong"><strong>response.json</strong></span></p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"status"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"RESPONSE"</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">}</span></pre><p>When test or stub generation takes place, the contents of the file is passed to the body
of a request or a response. The name of the file needs to be a file with location
relative to the folder in which the contract lays.</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="contract-dsl-http-top-level-elements" href="#contract-dsl-http-top-level-elements"></a>8.2.5&nbsp;HTTP Top-Level Elements</h3></div></div></div><p>The following methods can be called in the top-level closure of a contract definition.
<code class="literal">request</code> and <code class="literal">response</code> are mandatory. <code class="literal">priority</code> is optional.</p><p><b>Groovy DSL.&nbsp;</b>
</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">// Definition of HTTP request part of the contract</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">// (this can be a valid request or invalid depending</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">// on type of contract being specified).</span>
@@ -125,8 +235,18 @@ lays.</p></div><div class="section"><div class="titlepage"><div><div><h3 class="
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">// Contract priority, which can be used for overriding</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">// contracts (1 is highest). Priority is optional.</span>
priority <span class="hl-number">1</span>
}</pre></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_request" href="#_request"></a>8.3&nbsp;Request</h2></div></div></div><p>The HTTP protocol requires only <span class="strong"><strong>method and address</strong></span> to be specified in a request. The
same information is mandatory in request definition of the Contract.</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
}</pre><p>
</p><p><b>YAML.&nbsp;</b>
</p><pre class="programlisting">priority: 8
request:
...
response:
...</pre><p>
</p><div class="important" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Important"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Important]" src="images/important.png"></td><th align="left">Important</th></tr><tr><td align="left" valign="top"><p>If you want to make your contract have a <span class="strong"><strong>higher</strong></span> value of priority
you need to pass a <span class="strong"><strong>lower</strong></span> number to the <code class="literal">priority</code> tag / method. E.g. <code class="literal">priority</code> with
value <code class="literal">5</code> has <span class="strong"><strong>higher</strong></span> priority than <code class="literal">priority</code> with value <code class="literal">10</code>.</p></td></tr></table></div></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_request" href="#_request"></a>8.3&nbsp;Request</h2></div></div></div><p>The HTTP protocol requires only <span class="strong"><strong>method and url</strong></span> to be specified in a request. The
same information is mandatory in request definition of the Contract.</p><p><b>Groovy DSL.&nbsp;</b>
</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
request {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">// HTTP request method (GET/POST/PUT/DELETE).</span>
method <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'GET'</span>
@@ -138,8 +258,13 @@ same information is mandatory in request definition of the Contract.</p><pre cla
response {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">//...</span>
}
}</pre><p>It is possible to specify an absolute rather than relative <code class="literal">url</code>, but using <code class="literal">urlPath</code> is
the recommended way, as doing so makes the tests <span class="strong"><strong>host-independent</strong></span>.</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
}</pre><p>
</p><p><b>YAML.&nbsp;</b>
</p><pre class="programlisting">method: PUT
url: /foo</pre><p>
</p><p>It is possible to specify an absolute rather than relative <code class="literal">url</code>, but using <code class="literal">urlPath</code> is
the recommended way, as doing so makes the tests <span class="strong"><strong>host-independent</strong></span>.</p><p><b>Groovy DSL.&nbsp;</b>
</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
request {
method <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'GET'</span>
@@ -150,8 +275,13 @@ the recommended way, as doing so makes the tests <span class="strong"><strong>ho
response {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">//...</span>
}
}</pre><p><code class="literal">request</code> may contain <span class="strong"><strong>query parameters</strong></span>, which are specified in a closure nested in a
call to <code class="literal">urlPath</code> or <code class="literal">url</code>.</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
}</pre><p>
</p><p><b>YAML.&nbsp;</b>
</p><pre class="programlisting">request:
method: PUT
urlPath: /foo</pre><p>
</p><p><code class="literal">request</code> may contain <span class="strong"><strong>query parameters</strong></span>.</p><p><b>Groovy DSL.&nbsp;</b>
</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
request {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">//...</span>
@@ -191,7 +321,50 @@ call to <code class="literal">urlPath</code> or <code class="literal">url</code>
response {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">//...</span>
}
}</pre><p><code class="literal">request</code> may contain additional <span class="strong"><strong>request headers</strong></span>, as shown in the following example:</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
}</pre><p>
</p><p><b>YAML.&nbsp;</b>
</p><pre class="programlisting">request:
...
queryParameters:
a: b
b: c
headers:
foo: bar
fooReq: baz
body:
foo: bar
matchers:
body:
- path: $.foo
type: by_regex
value: bar
headers:
- key: foo
regex: bar
response:
status: 200
headers:
foo2: bar
foo3: foo33
fooRes: baz
body:
foo2: bar
foo3: baz
matchers:
body:
- path: $.foo2
type: by_regex
value: bar
- path: $.foo3
type: by_command
value: executeMe($it)
headers:
- key: foo2
regex: bar
- key: foo3
command: andMeToo($it)</pre><p>
</p><p><code class="literal">request</code> may contain additional <span class="strong"><strong>request headers</strong></span>, as shown in the following example:</p><p><b>Groovy DSL.&nbsp;</b>
</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
request {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">//...</span>
@@ -208,7 +381,15 @@ call to <code class="literal">urlPath</code> or <code class="literal">url</code>
response {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">//...</span>
}
}</pre><p><code class="literal">request</code> may contain a <span class="strong"><strong>request body</strong></span>, as shown in the following example:</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
}</pre><p>
</p><p><b>YAML.&nbsp;</b>
</p><pre class="programlisting">request:
...
headers:
foo: bar
fooReq: baz</pre><p>
</p><p><code class="literal">request</code> may contain a <span class="strong"><strong>request body</strong></span>:</p><p><b>Groovy DSL.&nbsp;</b>
</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
request {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">//...</span>
@@ -220,8 +401,15 @@ call to <code class="literal">urlPath</code> or <code class="literal">url</code>
response {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">//...</span>
}
}</pre><p><code class="literal">request</code> may contain <span class="strong"><strong>multipart</strong></span> elements. To include multipart elements, call the
<code class="literal">multipart()</code> method, as shown in the following example</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract contractDsl = org.springframework.cloud.contract.spec.Contract.make {
}</pre><p>
</p><p><b>YAML.&nbsp;</b>
</p><pre class="programlisting">request:
...
body:
foo: bar</pre><p>
</p><p><code class="literal">request</code> may contain <span class="strong"><strong>multipart</strong></span> elements. To include multipart elements, use the
<code class="literal">multipart</code> method/section, as shown in the following examples</p><p><b>Groovy DSL.&nbsp;</b>
</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract contractDsl = org.springframework.cloud.contract.spec.Contract.make {
request {
method <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"PUT"</span>
url <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"/multipart"</span>
@@ -244,11 +432,49 @@ call to <code class="literal">urlPath</code> or <code class="literal">url</code>
response {
status <span class="hl-number">200</span>
}
}</pre><p>In the preceding example, we define parameters in either of two ways:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">Directly, by using the map notation, where the value can be a dynamic property (such as
}</pre><p>
</p><p><b>YAML.&nbsp;</b>
</p><pre class="programlisting">request:
method: PUT
url: /multipart
headers:
Content-Type: multipart/form-data;boundary=AaB03x
multipart:
params:
# key (parameter name), value (parameter value) pair
formParameter: '"formParameterValue"'
someBooleanParameter: true
named:
- paramName: file
fileName: filename.csv
fileContent: file content
matchers:
multipart:
params:
- key: formParameter
regex: ".+"
- key: someBooleanParameter
predefined: any_boolean
named:
- paramName: file
fileName:
predefined: non_empty
fileContent:
predefined: non_empty
response:
status: 200</pre><p>
</p><p>In the preceding example, we define parameters in either of two ways:</p><div class="itemizedlist"><p class="title"><b>Groovy DSL</b></p><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">Directly, by using the map notation, where the value can be a dynamic property (such as
<code class="literal">formParameter: $(consumer(&#8230;&#8203;), producer(&#8230;&#8203;))</code>).</li><li class="listitem">By using the <code class="literal">named(&#8230;&#8203;)</code> method that lets you set a named parameter. A named parameter
can set a <code class="literal">name</code> and <code class="literal">content</code>. You can call it either via a method with two arguments,
such as <code class="literal">named("fileName", "fileContent")</code>, or via a map notation, such as
<code class="literal">named(name: "fileName", content: "fileContent")</code>.</li></ul></div><p>From this contract, the generated test is as follows:</p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">// given:</span>
<code class="literal">named(name: "fileName", content: "fileContent")</code>.</li></ul></div><div class="itemizedlist"><p class="title"><b>YAML</b></p><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">The multipart parameters are set via <code class="literal">multipart.params</code> section</li><li class="listitem">The named parameters (the <code class="literal">fileName</code> and <code class="literal">fileContent</code> for a given parameter name)
can be set via the <code class="literal">multipart.named</code> section. That section contains
the <code class="literal">paramName</code> (name of the parameter), <code class="literal">fileName</code> (name of the file),
<code class="literal">fileContent</code> (content of the file) fields</li><li class="listitem"><p class="simpara">The dynamic bits can be set via the <code class="literal">matchers.multipart</code> section</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">for parameters use the <code class="literal">params</code> section that can accept
<code class="literal">regex</code> or a <code class="literal">predefined</code> regular expression</li><li class="listitem">for named params use the <code class="literal">named</code> section where first you
define the parameter name via <code class="literal">paramName</code> and then you can pass the
parametrization of either <code class="literal">fileName</code> or <code class="literal">fileContent</code> via
<code class="literal">regex</code> or a <code class="literal">predefined</code> regular expression</li></ul></div></li></ul></div><p>From this contract, the generated test is as follows:</p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">// given:</span>
MockMvcRequestSpecification request = given()
.header(<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"Content-Type"</span>, <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"multipart/form-data;boundary=AaB03x"</span>)
.param(<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"formParameter"</span>, <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"\"formParameterValue\""</span>)
@@ -284,7 +510,8 @@ such as <code class="literal">named("fileName", "fileContent")</code>, or via a
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">}</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">}</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">''</span><span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'</span></pre></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_response" href="#_response"></a>8.4&nbsp;Response</h2></div></div></div><p>The response must contain an <span class="strong"><strong>HTTP status code</strong></span> and may contain other information. The
following code shows an example:</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
following code shows an example:</p><p><b>Groovy DSL.&nbsp;</b>
</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
request {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">//...</span>
}
@@ -293,12 +520,18 @@ following code shows an example:</p><pre class="programlisting">org.springframew
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">// in response to request specified above.</span>
status <span class="hl-number">200</span>
}
}</pre><p>Besides status, the response may contain <span class="strong"><strong>headers</strong></span> and a <span class="strong"><strong>body</strong></span>, both of which are
}</pre><p>
</p><p><b>YAML.&nbsp;</b>
</p><pre class="programlisting">response:
...
status: 200</pre><p>
</p><p>Besides status, the response may contain <span class="strong"><strong>headers</strong></span> and a <span class="strong"><strong>body</strong></span>, both of which are
specified the same way as in the request (see the previous paragraph).</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_dynamic_properties" href="#_dynamic_properties"></a>8.5&nbsp;Dynamic properties</h2></div></div></div><p>The contract can contain some dynamic properties: timestamps, IDs, and so on. You do not
want to force the consumers to stub their clocks to always return the same value of time
so that it gets matched by the stub. You can provide the dynamic parts in your contracts
so that it gets matched by the stub.</p><p>For Groovy DSL you can provide the dynamic parts in your contracts
in two ways: pass them directly in the body or set them in separate sections called
<code class="literal">testMatchers</code> and <code class="literal">stubMatchers</code>.</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="_dynamic_properties_inside_the_body" href="#_dynamic_properties_inside_the_body"></a>8.5.1&nbsp;Dynamic properties inside the body</h3></div></div></div><p>You can set the properties inside the body either with the <code class="literal">value</code> method or, if you use
<code class="literal">testMatchers</code> and <code class="literal">stubMatchers</code>.</p><p>For YAML you can only use the <code class="literal">matchers</code> section.</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="_dynamic_properties_inside_the_body" href="#_dynamic_properties_inside_the_body"></a>8.5.1&nbsp;Dynamic properties inside the body</h3></div></div></div><div class="important" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Important"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Important]" src="images/important.png"></td><th align="left">Important</th></tr><tr><td align="left" valign="top"><p>This section is valid only for Groovy DSL. Check out the
<a class="xref" href="multi__contract_dsl.html#contract-matchers" title="8.5.7&nbsp;Dynamic Properties in the Matchers Sections">Section&nbsp;8.5.7, &#8220;Dynamic Properties in the Matchers Sections&#8221;</a> section for YAML examples of a similar feature.</p></td></tr></table></div><p>You can set the properties inside the body either with the <code class="literal">value</code> method or, if you use
the Groovy map notation, with <code class="literal">$()</code>. The following example shows how to set dynamic
properties with the value method:</p><pre class="programlisting">value(consumer(...), producer(...))
value(c(...), p(...))
@@ -307,7 +540,8 @@ value(client(...), server(...))</pre><p>The following example shows how to set d
$(c(...), p(...))
$(stub(...), test(...))
$(client(...), server(...))</pre><p>Both approaches work equally well. <code class="literal">stub</code> and <code class="literal">client</code> methods are aliases over the <code class="literal">consumer</code>
method. Subsequent sections take a closer look at what you can do with those values.</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="_regular_expressions" href="#_regular_expressions"></a>8.5.2&nbsp;Regular expressions</h3></div></div></div><p>You can use regular expressions to write your requests in Contract DSL. Doing so is
method. Subsequent sections take a closer look at what you can do with those values.</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="_regular_expressions" href="#_regular_expressions"></a>8.5.2&nbsp;Regular expressions</h3></div></div></div><div class="important" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Important"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Important]" src="images/important.png"></td><th align="left">Important</th></tr><tr><td align="left" valign="top"><p>This section is valid only for Groovy DSL. Check out the
<a class="xref" href="multi__contract_dsl.html#contract-matchers" title="8.5.7&nbsp;Dynamic Properties in the Matchers Sections">Section&nbsp;8.5.7, &#8220;Dynamic Properties in the Matchers Sections&#8221;</a> section for YAML examples of a similar feature.</p></td></tr></table></div><p>You can use regular expressions to write your requests in Contract DSL. Doing so is
particularly useful when you want to indicate that a given response should be provided
for requests that follow a given pattern. Also, you can use regular expressions when you
need to use patterns and not exact values both for your test and your server side tests.</p><p>The following example shows how to use regular expressions to write a request:</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
@@ -453,7 +687,8 @@ Pattern nonBlank() {
message: <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"User not found by email = [${value(producer(regex(email())), consumer('not.existing@user.com'))}]"</span>
)
}
}</pre></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="_passing_optional_parameters" href="#_passing_optional_parameters"></a>8.5.3&nbsp;Passing Optional Parameters</h3></div></div></div><p>It is possible to provide optional parameters in your contract. However, you can provide
}</pre></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="_passing_optional_parameters" href="#_passing_optional_parameters"></a>8.5.3&nbsp;Passing Optional Parameters</h3></div></div></div><div class="important" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Important"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Important]" src="images/important.png"></td><th align="left">Important</th></tr><tr><td align="left" valign="top"><p>This section is valid only for Groovy DSL. Check out the
<a class="xref" href="multi__contract_dsl.html#contract-matchers" title="8.5.7&nbsp;Dynamic Properties in the Matchers Sections">Section&nbsp;8.5.7, &#8220;Dynamic Properties in the Matchers Sections&#8221;</a> section for YAML examples of a similar feature.</p></td></tr></table></div><p>It is possible to provide optional parameters in your contract. However, you can provide
optional parameters only for the following:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><span class="emphasis"><em>STUB</em></span> side of the Request</li><li class="listitem"><span class="emphasis"><em>TEST</em></span> side of the Response</li></ul></div><p>The following example shows how to provide optional parameters:</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
priority <span class="hl-number">1</span>
request {
@@ -496,29 +731,30 @@ expression that must be present 0 or more times.</p><p>If you use Spock for, the
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">""</span><span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"</span></pre><p>The following stub would also be generated:</p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">''</span><span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'
</span>{
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"request"</span> : {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"url"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"/users/password"</span>,
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"method"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"POST"</span>,
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"bodyPatterns"</span> : [ {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.['email'] =~ /([a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,6})?/)]"</span>
}, {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.['callback_url'] =~ /((http[s]?|ftp):\\\\/)\\\\/?([^:\\\\/\\\\s]+)(:[0-9]{1,5})?/)]"</span>
} ],
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"headers"</span> : {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"Content-Type"</span> : {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"equalTo"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"application/json"</span>
}
}
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"url"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"/users/password"</span>,
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"method"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"POST"</span>,
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"bodyPatterns"</span> : [ {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.['email'] =~ /([a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,6})?/)]"</span>
}, {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.['callback_url'] =~ /((http[s]?|ftp):\\\\/)\\\\/?([^:\\\\/\\\\s]+)(:[0-9]{1,5})?/)]"</span>
} ],
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"headers"</span> : {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"Content-Type"</span> : {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"equalTo"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"application/json"</span>
}
}
},
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"response"</span> : {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"status"</span> : <span class="hl-number">404</span>,
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"body"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"{\\"</span>code\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":\\"</span><span class="hl-number">123123</span>\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">",\\"</span>message\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":\\"</span>User not found by email == [not.existing<em><span class="hl-annotation" style="color: gray">@user.com]\\"}",</span></em>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"headers"</span> : {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"Content-Type"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"application/json"</span>
}
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"status"</span> : <span class="hl-number">404</span>,
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"body"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"{\\"</span>code\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":\\"</span><span class="hl-number">123123</span>\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">",\\"</span>message\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":\\"</span>User not found by email == [not.existing<em><span class="hl-annotation" style="color: gray">@user.com]\\"}",</span></em>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"headers"</span> : {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"Content-Type"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"application/json"</span>
}
},
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"priority"</span> : <span class="hl-number">1</span>
}
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">''</span><span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'</span></pre></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="_executing_custom_methods_on_the_server_side" href="#_executing_custom_methods_on_the_server_side"></a>8.5.4&nbsp;Executing Custom Methods on the Server Side</h3></div></div></div><p>You can define a method call that executes on the server side during the test. Such a
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">''</span><span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'</span></pre></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="_executing_custom_methods_on_the_server_side" href="#_executing_custom_methods_on_the_server_side"></a>8.5.4&nbsp;Executing Custom Methods on the Server Side</h3></div></div></div><div class="important" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Important"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Important]" src="images/important.png"></td><th align="left">Important</th></tr><tr><td align="left" valign="top"><p>This section is valid only for Groovy DSL. Check out the
<a class="xref" href="multi__contract_dsl.html#contract-matchers" title="8.5.7&nbsp;Dynamic Properties in the Matchers Sections">Section&nbsp;8.5.7, &#8220;Dynamic Properties in the Matchers Sections&#8221;</a> section for YAML examples of a similar feature.</p></td></tr></table></div><p>You can define a method call that executes on the server side during the test. Such a
method can be added to the class defined as "baseClassForTests" in the configuration. The
following code shows an example of the contract portion of the test case:</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
request {
@@ -582,11 +818,17 @@ It should resemble the following code:</p><pre class="programlisting"><span xmln
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">// then:</span>
assertThat(response.statusCode()).isEqualTo(<span class="hl-number">200</span>);</pre></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="_referencing_the_request_from_the_response" href="#_referencing_the_request_from_the_response"></a>8.5.5&nbsp;Referencing the Request from the Response</h3></div></div></div><p>The best situation is to provide fixed values, but sometimes you need to reference a
request in your response. To do so, you can use the <code class="literal">fromRequest()</code> method, which lets
request in your response.</p><p>If you&#8217;re writing contracts using Groovy DSL, you can use the <code class="literal">fromRequest()</code> method, which lets
you reference a bunch of elements from the HTTP request. You can use the following
options:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><code class="literal">fromRequest().url()</code>: Returns the request URL and query parameters.</li><li class="listitem"><code class="literal">fromRequest().query(String key)</code>: Returns the first query parameter with a given name.</li><li class="listitem"><code class="literal">fromRequest().query(String key, int index)</code>: Returns the nth query parameter with a
given name.</li><li class="listitem"><code class="literal">fromRequest().path()</code>: Returns the full path.</li><li class="listitem"><code class="literal">fromRequest().path(int index)</code>: Returns the nth path element.</li><li class="listitem"><code class="literal">fromRequest().header(String key)</code>: Returns the first header with a given name.</li><li class="listitem"><code class="literal">fromRequest().header(String key, int index)</code>: Returns the nth header with a given name.</li><li class="listitem"><code class="literal">fromRequest().body()</code>: Returns the full request body.</li><li class="listitem"><code class="literal">fromRequest().body(String jsonPath)</code>: Returns the element from the request that
matches the JSON Path.</li></ul></div><p>Consider the following contract:</p><pre class="programlisting">Contract contractDsl = Contract.make {
matches the JSON Path.</li></ul></div><p>If you&#8217;re using the YAML contract definition you have to use the
<a class="link" href="http://handlebarsjs.com/" target="_top">Handlebars</a> <code class="literal">{{{ }}}</code> notation with custom, Spring Cloud Contract
functions to achieve this.</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><code class="literal">{{{ request.url }}}</code>: Returns the request URL and query parameters.</li><li class="listitem"><code class="literal">{{{ request.query.key.[index] }}}</code>: Returns the nth query parameter with a given name.
E.g. for key <code class="literal">foo</code>, first entry <code class="literal">{{{ request.query.foo.[0] }}}</code></li><li class="listitem"><code class="literal">{{{ request.path }}}</code>: Returns the full path.</li><li class="listitem"><code class="literal">{{{ request.path.[index] }}}</code>: Returns the nth path element. E.g.
for first entry <code class="literal">`</code>{{{ request.path.[0] }}}</li><li class="listitem"><code class="literal">{{{ request.headers.key }}}</code>: Returns the first header with a given name.</li><li class="listitem"><code class="literal">{{{ request.headers.key.[index] }}}</code>: Returns the nth header with a given name.</li><li class="listitem"><code class="literal">{{{ request.body }}}</code>: Returns the full request body.</li><li class="listitem"><code class="literal">{{{ jsonpath this 'your.json.path' }}}</code>: Returns the element from the request that
matches the JSON Path. E.g. for json path <code class="literal">$.foo</code> - <code class="literal">{{{ jsonpath this '$.foo' }}}</code></li></ul></div><p>Consider the following contract:</p><p><b>Groovy DSL.&nbsp;</b>
</p><pre class="programlisting">Contract contractDsl = Contract.make {
request {
method <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'GET'</span>
url(<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'/api/v1/xxxx'</span>) {
@@ -620,7 +862,39 @@ matches the JSON Path.</li></ul></div><p>Consider the following contract:</p><pr
responseBaz2: <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"Bla bla ${fromRequest().body('$.foo')} bla bla"</span>
)
}
}</pre><p>Running a JUnit test generation leads to a test that resembles the following example:</p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">// given:</span>
}</pre><p>
</p><p><b>YAML.&nbsp;</b>
</p><pre class="programlisting">request:
method: GET
url: /api/v1/xxxx
queryParameters:
foo:
- bar
- bar2
headers:
Authorization:
- secret
- secret2
body:
foo: bar
baz: 5
response:
status: 200
headers:
Authorization: "foo {{{ request.headers.Authorization.0 }}} bar"
body:
url: "{{{ request.url }}}"
path: "{{{ request.path }}}"
pathIndex: "{{{ request.path.1 }}}"
param: "{{{ request.query.foo }}}"
paramIndex: "{{{ request.query.foo.1 }}}"
authorization: "{{{ request.headers.Authorization.0 }}}"
authorization2: "{{{ request.headers.Authorization.1 }}"
fullBody: "{{{ request.body }}}"
responseFoo: "{{{ jsonpath this '$.foo' }}}"
responseBaz: "{{{ jsonpath this '$.baz' }}}"
responseBaz2: "Bla bla {{{ jsonpath this '$.foo' }}} bla bla"</pre><p>
</p><p>Running a JUnit test generation leads to a test that resembles the following example:</p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">// given:</span>
MockMvcRequestSpecification request = given()
.header(<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"Authorization"</span>, <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"secret"</span>)
.header(<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"Authorization"</span>, <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"secret2"</span>)
@@ -723,12 +997,12 @@ org.springframework.cloud.contract.stubrunner.provider.wiremock.TestWireMockExte
}
}</pre><p>
</p><div class="important" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Important"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Important]" src="images/important.png"></td><th align="left">Important</th></tr><tr><td align="left" valign="top"><p>Remember to override the <code class="literal">applyGlobally()</code> method and set it to <code class="literal">false</code> if you
want the transformation to be applied only for a mapping that explicitly requires it.</p></td></tr></table></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="_dynamic_properties_in_the_matchers_sections" href="#_dynamic_properties_in_the_matchers_sections"></a>8.5.7&nbsp;Dynamic Properties in the Matchers Sections</h3></div></div></div><p>If you work with <a class="link" href="https://docs.pact.io/" target="_top">Pact</a>, the following discussion may seem familiar.
want the transformation to be applied only for a mapping that explicitly requires it.</p></td></tr></table></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="contract-matchers" href="#contract-matchers"></a>8.5.7&nbsp;Dynamic Properties in the Matchers Sections</h3></div></div></div><p>If you work with <a class="link" href="https://docs.pact.io/" target="_top">Pact</a>, the following discussion may seem familiar.
Quite a few users are used to having a separation between the body and setting the
dynamic parts of a contract.</p><p>You can use two separate sections:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><code class="literal">stubMatchers</code>, which lets you define the dynamic values that should end up in a stub.
You can set it in the <code class="literal">request</code> or <code class="literal">inputMessage</code> part of your contract.</li><li class="listitem"><code class="literal">testMatchers</code>, which is present in the <code class="literal">response</code> or <code class="literal">outputMessage</code> side of the
contract.</li></ul></div><p>Currently, Spring Cloud Contract Verifier supports only JSON Path-based matchers with the
following matching possibilities:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p class="simpara">For <code class="literal">stubMatchers</code>:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><code class="literal">byEquality()</code>: The value taken from the response via the provided JSON Path must be
following matching possibilities:</p><div class="itemizedlist"><p class="title"><b>Groovy DSL</b></p><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p class="simpara">For <code class="literal">stubMatchers</code>:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><code class="literal">byEquality()</code>: The value taken from the response via the provided JSON Path must be
equal to the value provided in the contract.</li><li class="listitem"><code class="literal">byRegex(&#8230;&#8203;)</code>: The value taken from the response via the provided JSON Path must
match the regex.</li><li class="listitem"><code class="literal">byDate()</code>: The value taken from the response via the provided JSON Path must
match the regex for an ISO Date value.</li><li class="listitem"><code class="literal">byTimestamp()</code>: The value taken from the response via the provided JSON Path must
@@ -746,7 +1020,15 @@ unflattened collection, use a custom method with the <code class="literal">byCom
passed as an input to the custom method that you provide. For example,
<code class="literal">byCommand('foo($it)')</code> results in calling a <code class="literal">foo</code> method to which the value matching the
JSON Path gets passed. The type of the object read from the JSON can be one of the
following, depending on the JSON path:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><code class="literal">String</code>: If you point to a <code class="literal">String</code> value.</li><li class="listitem"><code class="literal">JSONArray</code>: If you point to a <code class="literal">List</code>.</li><li class="listitem"><code class="literal">Map</code>: If you point to a <code class="literal">Map</code>.</li><li class="listitem"><code class="literal">Number</code>: If you point to <code class="literal">Integer</code>, <code class="literal">Double</code>, or other kind of number.</li><li class="listitem"><code class="literal">Boolean</code>: If you point to a <code class="literal">Boolean</code>.</li></ul></div></li></ul></div></li></ul></div><p>Consider the following example:</p><pre class="programlisting">Contract contractDsl = Contract.make {
following, depending on the JSON path:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><code class="literal">String</code>: If you point to a <code class="literal">String</code> value.</li><li class="listitem"><code class="literal">JSONArray</code>: If you point to a <code class="literal">List</code>.</li><li class="listitem"><code class="literal">Map</code>: If you point to a <code class="literal">Map</code>.</li><li class="listitem"><code class="literal">Number</code>: If you point to <code class="literal">Integer</code>, <code class="literal">Double</code>, or other kind of number.</li><li class="listitem"><code class="literal">Boolean</code>: If you point to a <code class="literal">Boolean</code>.</li></ul></div></li></ul></div></li></ul></div><p><b>YAML.&nbsp;</b><span class="emphasis"><em>Please read the Groovy section for detailed explanation of
what the types mean</em></span></p><p>For YAML the structure of a matcher looks like this</p><pre class="programlisting">- path: $.foo
type: by_regex
value: bar</pre><p>Or if you want to use one of the predefined regular expressions
<code class="literal">[only_alpha_unicode, number, any_boolean, ip_address, hostname,
email, url, uuid, iso_date, iso_date_time, iso_time, iso_8601_with_offset, non_empty, non_blank]</code>:</p><pre class="programlisting">- path: $.foo
type: by_regex
predefined: only_alpha_unicode</pre><p>Below you can find the allowed list of `type`s.</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p class="simpara">For <code class="literal">stubMatchers</code>:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><code class="literal">by_equality</code></li><li class="listitem"><code class="literal">by_regex</code></li><li class="listitem"><code class="literal">by_date</code></li><li class="listitem"><code class="literal">by_timestamp</code></li><li class="listitem"><code class="literal">by_time</code></li></ul></div></li><li class="listitem"><p class="simpara">For <code class="literal">testMatchers</code>:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><code class="literal">by_equality</code></li><li class="listitem"><code class="literal">by_regex</code></li><li class="listitem"><code class="literal">by_date</code></li><li class="listitem"><code class="literal">by_timestamp</code></li><li class="listitem"><code class="literal">by_time</code></li><li class="listitem"><p class="simpara"><code class="literal">by_type</code></p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem">there are 2 additional fields accepted: <code class="literal">minOccurrence</code> and <code class="literal">maxOccurrence</code>.</li></ul></div></li><li class="listitem"><code class="literal">by_command</code></li></ul></div></li></ul></div><p>Consider the following example:</p><p><b>Groovy DSL.&nbsp;</b>
</p><pre class="programlisting">Contract contractDsl = Contract.make {
request {
method <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'GET'</span>
urlPath <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'/get'</span>
@@ -852,7 +1134,133 @@ following, depending on the JSON path:</p><div class="itemizedlist"><ul class="i
contentType(applicationJson())
}
}
}</pre><p>In the preceding example, you can see the dynamic portions of the contract in the
}</pre><p>
</p><p><b>YAML.&nbsp;</b>
</p><pre class="programlisting">request:
method: GET
urlPath: /get
body:
duck: 123
alpha: "abc"
number: 123
aBoolean: true
date: "2017-01-01"
dateTime: "2017-01-01T01:23:45"
time: "01:02:34"
valueWithoutAMatcher: "foo"
valueWithTypeMatch: "string"
key:
"complex.key": 'foo'
matchers:
headers:
- key: Content-Type
regex: "application/json.*"
body:
- path: $.duck
type: by_regex
value: "[0-9]{3}"
- path: $.duck
type: by_equality
- path: $.alpha
type: by_regex
predefined: only_alpha_unicode
- path: $.alpha
type: by_equality
- path: $.number
type: by_regex
predefined: number
- path: $.aBoolean
type: by_regex
predefined: any_boolean
- path: $.date
type: by_date
- path: $.dateTime
type: by_timestamp
- path: $.time
type: by_time
- path: "$.['key'].['complex.key']"
type: by_equality
headers:
Content-Type: application/json
response:
status: 200
body:
duck: 123
alpha: "abc"
number: 123
aBoolean: true
date: "2017-01-01"
dateTime: "2017-01-01T01:23:45"
time: "01:02:34"
valueWithoutAMatcher: "foo"
valueWithTypeMatch: "string"
valueWithMin:
- 1
- 2
- 3
valueWithMax:
- 1
- 2
- 3
valueWithMinMax:
- 1
- 2
- 3
valueWithMinEmpty: []
valueWithMaxEmpty: []
key:
'complex.key' : 'foo'
matchers:
headers:
- key: Content-Type
regex: "application/json.*"
body:
- path: $.duck
type: by_regex
value: "[0-9]{3}"
- path: $.duck
type: by_equality
- path: $.alpha
type: by_regex
predefined: only_alpha_unicode
- path: $.alpha
type: by_equality
- path: $.number
type: by_regex
predefined: number
- path: $.aBoolean
type: by_regex
predefined: any_boolean
- path: $.date
type: by_date
- path: $.dateTime
type: by_timestamp
- path: $.time
type: by_time
- path: $.valueWithTypeMatch
type: by_type
- path: $.valueWithMin
type: by_type
minOccurrence: 1
- path: $.valueWithMax
type: by_type
maxOccurrence: 3
- path: $.valueWithMinMax
type: by_type
minOccurrence: 1
maxOccurrence: 3
- path: $.valueWithMinEmpty
type: by_type
minOccurrence: 0
- path: $.valueWithMaxEmpty
type: by_type
maxOccurrence: 0
- path: $.duck
type: by_command
value: assertThatValueIsANumber($it)
headers:
Content-Type: application/json</pre><p>
</p><p>In the preceding example, you can see the dynamic portions of the contract in the
<code class="literal">matchers</code> sections. For the request part, you can see that, for all fields but
<code class="literal">valueWithoutAMatcher</code>, the values of the regular expressions that the stub should
contain are explicitly set. For the <code class="literal">valueWithoutAMatcher</code>, the verification takes place
@@ -908,51 +1316,51 @@ statically imported to your tests. Notice that the <code class="literal">byComma
the method name and passed the proper JSON path as a parameter to it.</p></td></tr></table></div><p>The resulting WireMock stub is in the following example:</p><pre class="programlisting"> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">''</span><span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'
</span><span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"request"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"urlPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"/get"</span><span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">,</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"method"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"POST"</span><span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">,</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"headers"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"Content-Type"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matches"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"application/json.*"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">}</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"bodyPatterns"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">[</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.['valueWithoutAMatcher'] == 'foo')]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.['valueWithTypeMatch'] == 'string')]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$.['list'].['some'].['nested'][?(@.['anothervalue'] == 4)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$.['list'].['someother'].['nested'][?(@.['anothervalue'] == 4)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$.['list'].['someother'].['nested'][?(@.['json'] == 'with value')]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.duck =~ /([0-9]{3})/)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.duck == 123)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.alpha =~ /([\\\\p{L}]*)/)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.alpha == 'abc')]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.number =~ /(-?(\\\\d*\\\\.\\\\d+|\\\\d+))/)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.aBoolean =~ /((true|false))/)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.date =~ /((\\\\d\\\\d\\\\d\\\\d)-(0[1-9]|1[012])-(0[1-9]|[12][0-9]|3[01]))/)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.dateTime =~ /(([0-9]{4})-(1[0-2]|0[1-9])-(3[01]|0[1-9]|[12][0-9])T(2[0-3]|[01][0-9]):([0-5][0-9]):([0-5][0-9]))/)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.time =~ /((2[0-3]|[01][0-9]):([0-5][0-9]):([0-5][0-9]))/)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$.list.some.nested[?(@.json =~ /(.*)/)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">}</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">]</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"urlPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"/get"</span><span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">,</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"method"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"POST"</span><span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">,</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"headers"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"Content-Type"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matches"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"application/json.*"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">}</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"bodyPatterns"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">[</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.['valueWithoutAMatcher'] == 'foo')]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.['valueWithTypeMatch'] == 'string')]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$.['list'].['some'].['nested'][?(@.['anothervalue'] == 4)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$.['list'].['someother'].['nested'][?(@.['anothervalue'] == 4)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$.['list'].['someother'].['nested'][?(@.['json'] == 'with value')]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.duck =~ /([0-9]{3})/)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.duck == 123)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.alpha =~ /([\\\\p{L}]*)/)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.alpha == 'abc')]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.number =~ /(-?(\\\\d*\\\\.\\\\d+|\\\\d+))/)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.aBoolean =~ /((true|false))/)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.date =~ /((\\\\d\\\\d\\\\d\\\\d)-(0[1-9]|1[012])-(0[1-9]|[12][0-9]|3[01]))/)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.dateTime =~ /(([0-9]{4})-(1[0-2]|0[1-9])-(3[01]|0[1-9]|[12][0-9])T(2[0-3]|[01][0-9]):([0-5][0-9]):([0-5][0-9]))/)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$[?(@.time =~ /((2[0-3]|[01][0-9]):([0-5][0-9]):([0-5][0-9]))/)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"matchesJsonPath"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"$.list.some.nested[?(@.json =~ /(.*)/)]"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">}</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">]</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">},</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"response"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"status"</span> : <span class="hl-number">200</span><span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">,</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"body"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"{\\"</span>date\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":\\"</span><span class="hl-number">2017</span>-<span class="hl-number">01</span>-<span class="hl-number">01</span>\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">",\\"</span>dateTime\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":\\"</span><span class="hl-number">2017</span>-<span class="hl-number">01</span>-<span class="hl-number">01</span>T01:<span class="hl-number">23</span>:<span class="hl-number">45</span>\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">",\\"</span>number\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":123,\\"</span>aBoolean\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":true,\\"</span>duck\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":123,\\"</span>alpha\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":\\"</span>abc\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">",\\"</span>valueWithMin\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":[1,2,3],\\"</span>time\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":\\"</span><span class="hl-number">01</span>:<span class="hl-number">02</span>:<span class="hl-number">34</span>\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">",\\"</span>valueWithTypeMatch\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":\\"</span>string\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">",\\"</span>valueWithMax\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":[1,2,3],\\"</span>valueWithMinMax\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":[1,2,3],\\"</span>valueWithoutAMatcher\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":\\"</span>foo\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"}"</span><span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">,</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"headers"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"Content-Type"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"application/json"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">}</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"status"</span> : <span class="hl-number">200</span><span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">,</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"body"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"{\\"</span>date\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":\\"</span><span class="hl-number">2017</span>-<span class="hl-number">01</span>-<span class="hl-number">01</span>\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">",\\"</span>dateTime\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":\\"</span><span class="hl-number">2017</span>-<span class="hl-number">01</span>-<span class="hl-number">01</span>T01:<span class="hl-number">23</span>:<span class="hl-number">45</span>\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">",\\"</span>number\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":123,\\"</span>aBoolean\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":true,\\"</span>duck\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":123,\\"</span>alpha\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":\\"</span>abc\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">",\\"</span>valueWithMin\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":[1,2,3],\\"</span>time\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":\\"</span><span class="hl-number">01</span>:<span class="hl-number">02</span>:<span class="hl-number">34</span>\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">",\\"</span>valueWithTypeMatch\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":\\"</span>string\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">",\\"</span>valueWithMax\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":[1,2,3],\\"</span>valueWithMinMax\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":[1,2,3],\\"</span>valueWithoutAMatcher\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">":\\"</span>foo\\<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"}"</span><span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">,</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"headers"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">{</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"Content-Type"</span> : <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"application/json"</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">}</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">}</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">}</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">''</span><span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'</span></pre><div class="important" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Important"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Important]" src="images/important.png"></td><th align="left">Important</th></tr><tr><td align="left" valign="top"><p>If you use a <code class="literal">matcher</code>, then the part of the request aned response that the
@@ -1021,7 +1429,8 @@ content type set. Otherwise, the default of <code class="literal">application/oc
assertThatJson(parsedJson).field(<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"['property1']"</span>).isEqualTo(<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"a"</span>);
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">''</span><span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'</span></pre></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_async_support" href="#_async_support"></a>8.7&nbsp;Async Support</h2></div></div></div><p>If you&#8217;re using asynchronous communication on the server side (your controllers are
returning <code class="literal">Callable</code>, <code class="literal">DeferredResult</code>, and so on), then, inside your contract, you must
provide a <code class="literal">sync()</code> method in the <code class="literal">response</code> section. The following code shows an example:</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
provide a <code class="literal">sync()</code> method in the <code class="literal">response</code> section. The following code shows an example:</p><p><b>Groovy DSL.&nbsp;</b>
</p><pre class="programlisting">org.springframework.cloud.contract.spec.Contract.make {
request {
method GET()
url <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'/get'</span>
@@ -1031,7 +1440,11 @@ provide a <code class="literal">sync()</code> method in the <code class="literal
body <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'Passed'</span>
async()
}
}</pre></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_working_with_context_paths" href="#_working_with_context_paths"></a>8.8&nbsp;Working with Context Paths</h2></div></div></div><p>Spring Cloud Contract supports context paths.</p><div class="important" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Important"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Important]" src="images/important.png"></td><th align="left">Important</th></tr><tr><td align="left" valign="top"><p>The only change needed to fully support context paths is the switch on the
}</pre><p>
</p><p><b>YAML.&nbsp;</b>
</p><pre class="programlisting">response:
async: true</pre><p>
</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_working_with_context_paths" href="#_working_with_context_paths"></a>8.8&nbsp;Working with Context Paths</h2></div></div></div><p>Spring Cloud Contract supports context paths.</p><div class="important" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Important"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Important]" src="images/important.png"></td><th align="left">Important</th></tr><tr><td align="left" valign="top"><p>The only change needed to fully support context paths is the switch on the
<span class="strong"><strong>PRODUCER</strong></span> side. Also, the autogenerated tests must use <span class="strong"><strong>EXPLICIT</strong></span> mode. The consumer
side remains untouched. In order for the generated test to pass, you must use <span class="strong"><strong>EXPLICIT</strong></span>
mode.</p></td></tr></table></div><p class="primary"><b>Maven.&nbsp;</b>
@@ -1077,7 +1490,8 @@ socket.</p><p>Consider the following contract:</p><pre class="programlisting">or
context path included (for example, <code class="literal">/my-context-path/url</code>).</li><li class="listitem">Your contracts reflect that you have a context path. Your generated stubs also have
that information (for example, in the stubs, you have to call <code class="literal">/my-context-path/url</code>).</li></ul></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_messaging_top_level_elements" href="#_messaging_top_level_elements"></a>8.9&nbsp;Messaging Top-Level Elements</h2></div></div></div><p>The DSL for messaging looks a little bit different than the one that focuses on HTTP. The
following sections explain the differences:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><a class="xref" href="multi__contract_dsl.html#contract-dsl-output-triggered-method" title="8.9.1&nbsp;Output Triggered by a Method">Section&nbsp;8.9.1, &#8220;Output Triggered by a Method&#8221;</a></li><li class="listitem"><a class="xref" href="multi__contract_dsl.html#contract-dsl-output-triggered-message" title="8.9.2&nbsp;Output Triggered by a Message">Section&nbsp;8.9.2, &#8220;Output Triggered by a Message&#8221;</a></li><li class="listitem"><a class="xref" href="multi__contract_dsl.html#contract-dsl-consumer-producer" title="8.9.3&nbsp;Consumer/Producer">Section&nbsp;8.9.3, &#8220;Consumer/Producer&#8221;</a></li><li class="listitem"><a class="xref" href="multi__contract_dsl.html#contract-dsl-common" title="8.9.4&nbsp;Common">Section&nbsp;8.9.4, &#8220;Common&#8221;</a></li></ul></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="contract-dsl-output-triggered-method" href="#contract-dsl-output-triggered-method"></a>8.9.1&nbsp;Output Triggered by a Method</h3></div></div></div><p>The output message can be triggered by calling a method (such as a <code class="literal">Scheduler</code> when a was
started and a message was sent), as shown in the following example:</p><pre class="programlisting">def dsl = Contract.make {
started and a message was sent), as shown in the following example:</p><p><b>Groovy DSL.&nbsp;</b>
</p><pre class="programlisting">def dsl = Contract.make {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">// Human readable description</span>
description <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'Some description'</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">// Label by means of which the output message can be triggered</span>
@@ -1098,11 +1512,31 @@ started and a message was sent), as shown in the following example:</p><pre clas
header(<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'BOOK-NAME'</span>, <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'foo'</span>)
}
}
}</pre><p>In the previous example case, the output message is sent to <code class="literal">output</code> if a method called
}</pre><p>
</p><p><b>YAML.&nbsp;</b>
</p><pre class="programlisting"># Human readable description
description: Some description
# Label by means of which the output message can be triggered
label: some_label
input:
# the contract will be triggered by a method
triggeredBy: bookReturnedTriggered()
# output message of the contract
outputMessage:
# destination to which the output message will be sent
sentTo: output
# the body of the output message
body:
bookName: foo
# the headers of the output message
headers:
BOOK-NAME: foo</pre><p>
</p><p>In the previous example case, the output message is sent to <code class="literal">output</code> if a method called
<code class="literal">bookReturnedTriggered</code> is executed. On the message <span class="strong"><strong>publisher&#8217;s</strong></span> side, we generate a
test that calls that method to trigger the message. On the <span class="strong"><strong>consumer</strong></span> side, you can use
the <code class="literal">some_label</code> to trigger the message.</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="contract-dsl-output-triggered-message" href="#contract-dsl-output-triggered-message"></a>8.9.2&nbsp;Output Triggered by a Message</h3></div></div></div><p>The output message can be triggered by receiving a message, as shown in the following
example:</p><pre class="programlisting">def dsl = Contract.make {
example:</p><p><b>Groovy DSL.&nbsp;</b>
</p><pre class="programlisting">def dsl = Contract.make {
description <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'Some Description'</span>
label <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'some_label'</span>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">// input is a message</span>
@@ -1127,11 +1561,36 @@ example:</p><pre class="programlisting">def dsl = Contract.make {
header(<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'BOOK-NAME'</span>, <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'foo'</span>)
}
}
}</pre><p>In the preceding example, the output message is sent to <code class="literal">output</code> if a proper message is
}</pre><p>
</p><p><b>YAML.&nbsp;</b>
</p><pre class="programlisting"># Human readable description
description: Some description
# Label by means of which the output message can be triggered
label: some_label
# input is a message
input:
messageFrom: input
# has the following body
messageBody:
bookName: 'foo'
# and the following headers
messageHeaders:
sample: 'header'
# output message of the contract
outputMessage:
# destination to which the output message will be sent
sentTo: output
# the body of the output message
body:
bookName: foo
# the headers of the output message
headers:
BOOK-NAME: foo</pre><p>
</p><p>In the preceding example, the output message is sent to <code class="literal">output</code> if a proper message is
received on the <code class="literal">input</code> destination. On the message <span class="strong"><strong>publisher&#8217;s</strong></span> side, the engine
generates a test that sends the input message to the defined destination. On the
<span class="strong"><strong>consumer</strong></span> side, you can either send a message to the input destination or use a label
(<code class="literal">some_label</code> in the example) to trigger the message.</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="contract-dsl-consumer-producer" href="#contract-dsl-consumer-producer"></a>8.9.3&nbsp;Consumer/Producer</h3></div></div></div><p>In HTTP, you have a notion of <code class="literal">client</code>/<code class="literal">stub and `server</code>/<code class="literal">test</code> notation. You can also
(<code class="literal">some_label</code> in the example) to trigger the message.</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="contract-dsl-consumer-producer" href="#contract-dsl-consumer-producer"></a>8.9.3&nbsp;Consumer/Producer</h3></div></div></div><div class="important" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Important"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Important]" src="images/important.png"></td><th align="left">Important</th></tr><tr><td align="left" valign="top"><p>This section is valid only for Groovy DSL.</p></td></tr></table></div><p>In HTTP, you have a notion of <code class="literal">client</code>/<code class="literal">stub and `server</code>/<code class="literal">test</code> notation. You can also
use those paradigms in messaging. In addition, Spring Cloud Contract Verifier also
provides the <code class="literal">consumer</code> and <code class="literal">producer</code> methods, as presented in the following example
(note that you can use either <code class="literal">$</code> or <code class="literal">value</code> methods to provide <code class="literal">consumer</code> and <code class="literal">producer</code>
@@ -1152,11 +1611,12 @@ parts):</p><pre class="programlisting">Contract.make {
bookName: <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'foo'</span>
])
}
}</pre></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="contract-dsl-common" href="#contract-dsl-common"></a>8.9.4&nbsp;Common</h3></div></div></div><p>In the <code class="literal">input {}</code> or <code class="literal">outputMessage {}</code> section you can call <code class="literal">assertThat</code> with the name
}</pre></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="contract-dsl-common" href="#contract-dsl-common"></a>8.9.4&nbsp;Common</h3></div></div></div><p>In the <code class="literal">input</code> or <code class="literal">outputMessage</code> section you can call <code class="literal">assertThat</code> with the name
of a <code class="literal">method</code> (e.g. <code class="literal">assertThatMessageIsOnTheQueue()</code>) that you have defined in the
base class or in a static import. Spring Cloud Pipelines will execute that method
in the genertaed test.</p></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_multiple_contracts_in_one_file" href="#_multiple_contracts_in_one_file"></a>8.10&nbsp;Multiple Contracts in One File</h2></div></div></div><p>You can define multiple contracts in one file. Such a contract might resemble the
following example:</p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">import</span> org.springframework.cloud.contract.spec.Contract
base class or in a static import. Spring Cloud Contract will execute that method
in the generated test.</p></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_multiple_contracts_in_one_file" href="#_multiple_contracts_in_one_file"></a>8.10&nbsp;Multiple Contracts in One File</h2></div></div></div><p>You can define multiple contracts in one file. Such a contract might resemble the
following example:</p><p><b>Groovy DSL.&nbsp;</b>
</p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">import</span> org.springframework.cloud.contract.spec.Contract
[
Contract.make {
@@ -1178,7 +1638,23 @@ following example:</p><pre class="programlisting"><span xmlns:d="http://docbook.
status <span class="hl-number">200</span>
}
}
]</pre><p>In the preceding example, one contract has the <code class="literal">name</code> field and the other does not. This
]</pre><p>
</p><p><b>YAML.&nbsp;</b>
</p><pre class="programlisting">---
name: should post a user
request:
method: POST
url: /users/1
response:
status: 200
---
request:
method: POST
url: /users/2
response:
status: 200</pre><p>
</p><p>In the preceding example, one contract has the <code class="literal">name</code> field and the other does not. This
leads to generation of two tests that look more or less like this:</p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">package</span> org.springframework.cloud.contract.verifier.tests.com.hello;
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">import</span> com.example.TestBase;