From d5a99b1fc67023055bc2625234ad540dd1bd280d Mon Sep 17 00:00:00 2001 From: buildmaster Date: Sun, 16 Dec 2018 13:02:09 +0000 Subject: [PATCH] Sync docs from 2.0.x to gh-pages --- .../multi__spring_cloud_contract_faq.html | 11 ++++++- ...lti__using_the_pluggable_architecture.html | 4 +-- 2.0.x/multi/multi_spring-cloud-contract.html | 2 +- 2.0.x/single/spring-cloud-contract.html | 17 ++++++++--- .../checkstyle.rss | 4 +-- 2.0.x/spring-cloud-contract.xml | 29 ++++++++++++++++++- 6 files changed, 56 insertions(+), 11 deletions(-) diff --git a/2.0.x/multi/multi__spring_cloud_contract_faq.html b/2.0.x/multi/multi__spring_cloud_contract_faq.html index a557f5b06d..b0e0c6ab63 100644 --- a/2.0.x/multi/multi__spring_cloud_contract_faq.html +++ b/2.0.x/multi/multi__spring_cloud_contract_faq.html @@ -644,4 +644,13 @@ matching response definition was picked.

To turn off this feature just bum to dump all mappings per artifact id. Also the port at which the given stub server was started will be attached.

3.8.3 Can I reference text from file?

Yes! With version 1.2.0 we’ve added such a possibility. It’s enough to call file(…​) method in the DSL and provide a path relative to where the contract lays. -If you’re using YAML just use the bodyFromFile property.

Prev   Next
2. Spring Cloud Contract Verifier Introduction Home 4. Spring Cloud Contract Verifier Setup
\ No newline at end of file +If you’re using YAML just use the bodyFromFile property.

3.8.4 Why do I sometimes get SocketException

When using an HTTP client (e.g. RestTemplate) and running several tests that share a Spring context, you might sometimes get the following exception:

java.net.SocketException: Unexpected end of file from server

Tom Akehurst, the creator of WireMock did the following analysis of this issue.

I looked at tcpdump while running the failing test. HttpUrlConnection is doing something weird - it’s creating a connection in a previous test case, which works fine, then the usual fin → fin ack etc. ending handshake happens. But it seems it isn’t discarded, but reused after that. Because the server thinks (rightly) that the connection is closed, it just sends a RST packet. Calling the /__admin endpoint just happened to remove the dead connection from the pool. This also fixes the problem (which using the Java HTTP client): System.setProperty("http.keepAlive", "false");

There are the ways to solve this problem.

First, just use a different HTTP client for RestTemplate. Example for using Apache HTTP client:

pom.xml.  +

<dependency>
+	<groupId>org.apache.httpcomponents</groupId>
+	<artifactId>httpclient</artifactId>
+	<scope>compile</scope>
+</dependency>

+

this.restTemplate
+		.setRequestFactory(new HttpComponentsClientHttpRequestFactory());

Second option is to set the system property. You can set it either in code or pass it to your tests via a plugin.

static {
+	 System.setProperty("http.keepAlive", "false");
+}
Prev   Next
2. Spring Cloud Contract Verifier Introduction Home 4. Spring Cloud Contract Verifier Setup
\ No newline at end of file diff --git a/2.0.x/multi/multi__using_the_pluggable_architecture.html b/2.0.x/multi/multi__using_the_pluggable_architecture.html index c44e2e8074..c1da85f466 100644 --- a/2.0.x/multi/multi__using_the_pluggable_architecture.html +++ b/2.0.x/multi/multi__using_the_pluggable_architecture.html @@ -422,7 +422,7 @@ to clone the repository and use it as a source of contracts to generate tests or stubs.

Either via environment variables, system properties, properties set inside the plugin or contracts repository configuration you can tweak the downloader’s behaviour. Below you can find the list of -properties

Table 10.1. SCM Stub Downloader properties

Type of a property

Name of the property

Description

* git.branch (plugin prop) +properties

Table 10.1. SCM Stub Downloader properties

Type of a property

Name of the property

Description

* git.branch (plugin prop)

* stubrunner.properties.git.branch (system prop)

* STUBRUNNER_PROPERTIES_GIT_BRANCH (env prop)

master

Which branch to checkout

* git.username (plugin prop)

* stubrunner.properties.git.username (system prop) @@ -438,7 +438,7 @@ to fetch the Pact contract definitions from the Pact Broker. Whatever is set after pact:// will be parsed as the Pact Broker URL.

Either via environment variables, system properties, properties set inside the plugin or contracts repository configuration you can tweak the downloader’s behaviour. Below you can find the list of -properties

Table 10.2. SCM Stub Downloader properties

Name of a property

Default

Description

* pactbroker.host (plugin prop) +properties

Table 10.2. SCM Stub Downloader properties

Name of a property

Default

Description

* pactbroker.host (plugin prop)

* stubrunner.properties.pactbroker.host (system prop)

* STUBRUNNER_PROPERTIES_PACTBROKER_HOST (env prop)

Host from URL passed to repositoryRoot

What is the URL of Pact Broker

* pactbroker.port (plugin prop)

* stubrunner.properties.pactbroker.port (system prop) diff --git a/2.0.x/multi/multi_spring-cloud-contract.html b/2.0.x/multi/multi_spring-cloud-contract.html index 7b6666ba74..f45679140a 100644 --- a/2.0.x/multi/multi_spring-cloud-contract.html +++ b/2.0.x/multi/multi_spring-cloud-contract.html @@ -1,3 +1,3 @@ - Spring Cloud Contract

Spring Cloud Contract
   Next

Spring Cloud Contract

Table of Contents

1. Spring Cloud Contract
2. Spring Cloud Contract Verifier Introduction
2.1. Why a Contract Verifier?
2.1.1. Testing issues
2.2. Purposes
2.3. How It Works
2.3.1. A Three-second Tour
On the Producer Side
On the Consumer Side
2.3.2. A Three-minute Tour
On the Producer Side
On the Consumer Side
2.3.3. Defining the Contract
2.3.4. Client Side
2.3.5. Server Side
2.4. Step-by-step Guide to Consumer Driven Contracts (CDC)
2.4.1. Technical note
2.4.2. Consumer side (Loan Issuance)
2.4.3. Producer side (Fraud Detection server)
2.4.4. Consumer Side (Loan Issuance) Final Step
2.5. Dependencies
2.6. Additional Links
2.6.1. Spring Cloud Contract video
2.6.2. Readings
2.7. Samples
3. Spring Cloud Contract FAQ
3.1. Why use Spring Cloud Contract Verifier and not X ?
3.2. I don’t want to write a contract in Groovy!
3.3. What is this value(consumer(), producer()) ?
3.4. How to do Stubs versioning?
3.4.1. API Versioning
3.4.2. JAR versioning
3.4.3. Dev or prod stubs
3.5. Common repo with contracts
3.5.1. Repo structure
3.5.2. Workflow
3.5.3. Consumer
3.5.4. Producer
3.5.5. How can I define messaging contracts per topic not per producer?
For Maven Project
For Gradle Project
3.6. Do I need a Binary Storage? Can’t I use Git?
3.6.1. Protocol convention
3.6.2. Producer
Keeping contracts with the producer and stubs in an external repository
3.6.3. Consumer
3.7. Can I use the Pact Broker?
3.7.1. Pact Consumer
3.7.2. Producer
3.7.3. Pact Consumer (Producer Contract approach)
3.8. How can I debug the request/response being sent by the generated tests client?
3.8.1. How can I debug the mapping/request/response being sent by WireMock?
3.8.2. How can I see what got registered in the HTTP server stub?
3.8.3. Can I reference text from file?
4. Spring Cloud Contract Verifier Setup
4.1. Gradle Project
4.1.1. Prerequisites
4.1.2. Add Gradle Plugin with Dependencies
4.1.3. Gradle and Rest Assured 2.0
4.1.4. Snapshot Versions for Gradle
4.1.5. Add stubs
4.1.6. Run the Plugin
4.1.7. Default Setup
4.1.8. Configure Plugin
4.1.9. Configuration Options
4.1.10. Single Base Class for All Tests
4.1.11. Different Base Classes for Contracts
4.1.12. Invoking Generated Tests
4.1.13. Pushing stubs to SCM
4.1.14. Spring Cloud Contract Verifier on the Consumer Side
4.2. Maven Project
4.2.1. Add maven plugin
4.2.2. Maven and Rest Assured 2.0
4.2.3. Snapshot versions for Maven
4.2.4. Add stubs
4.2.5. Run plugin
4.2.6. Configure plugin
4.2.7. Configuration Options
4.2.8. Single Base Class for All Tests
4.2.9. Different base classes for contracts
4.2.10. Invoking generated tests
4.2.11. Pushing stubs to SCM
4.2.12. Maven Plugin and STS
4.3. Stubs and Transitive Dependencies
4.4. CI Server setup
4.5. Scenarios
4.6. Docker Project
4.6.1. Short intro to Maven, JARs and Binary storage
4.6.2. How it works
Environment Variables
4.6.3. Example of usage
4.6.4. Server side (nodejs)
5. Spring Cloud Contract Verifier Messaging
5.1. Integrations
5.2. Manual Integration Testing
5.3. Publisher-Side Test Generation
5.3.1. Scenario 1: No Input Message
5.3.2. Scenario 2: Output Triggered by Input
5.3.3. Scenario 3: No Output Message
5.4. Consumer Stub Generation
6. Spring Cloud Contract Stub Runner
6.1. Snapshot versions
6.2. Publishing Stubs as JARs
6.3. Stub Runner Core
6.3.1. Retrieving stubs
Stub downloading
Classpath scanning
6.3.2. Running stubs
Running using main app
HTTP Stubs
Viewing registered mappings
Messaging Stubs
6.4. Stub Runner JUnit Rule
6.4.1. Maven settings
6.4.2. Providing fixed ports
6.4.3. Fluent API
6.4.4. Stub Runner with Spring
6.5. Stub Runner Spring Cloud
6.5.1. Stubbing Service Discovery
Test profiles and service discovery
6.5.2. Additional Configuration
6.6. Stub Runner Boot Application
6.6.1. How to use it?
Stub Runner Server
Stub Runner Server Fat Jar
Spring Cloud CLI
6.6.2. Endpoints
HTTP
Messaging
6.6.3. Example
6.6.4. Stub Runner Boot with Service Discovery
6.7. Stubs Per Consumer
6.8. Common
6.8.1. Common Properties for JUnit and Spring
6.8.2. Stub Runner Stubs IDs
6.9. Stub Runner Docker
6.9.1. How to use it
6.9.2. Example of client side usage in a non JVM project
7. Stub Runner for Messaging
7.1. Stub triggering
7.1.1. Trigger by Label
7.1.2. Trigger by Group and Artifact Ids
7.1.3. Trigger by Artifact Ids
7.1.4. Trigger All Messages
7.2. Stub Runner Integration
7.2.1. Adding the Runner to the Project
7.2.2. Disabling the functionality
Scenario 1 (no input message)
Scenario 2 (output triggered by input)
Scenario 3 (input with no output)
7.3. Stub Runner Stream
7.3.1. Adding the Runner to the Project
7.3.2. Disabling the functionality
Scenario 1 (no input message)
Scenario 2 (output triggered by input)
Scenario 3 (input with no output)
7.4. Stub Runner Spring AMQP
7.4.1. Adding the Runner to the Project
Triggering the message
Spring AMQP Test Configuration
8. Contract DSL
8.1. Limitations
8.2. Common Top-Level elements
8.2.1. Description
8.2.2. Name
8.2.3. Ignoring Contracts
8.2.4. Passing Values from Files
8.2.5. HTTP Top-Level Elements
8.3. Request
8.4. Response
8.5. Dynamic properties
8.5.1. Dynamic properties inside the body
8.5.2. Regular expressions
8.5.3. Passing Optional Parameters
8.5.4. Executing Custom Methods on the Server Side
8.5.5. Referencing the Request from the Response
8.5.6. Registering Your Own WireMock Extension
8.5.7. Dynamic Properties in the Matchers Sections
8.6. JAX-RS Support
8.7. Async Support
8.8. Working with Context Paths
8.9. Working with Web Flux
8.10. Messaging Top-Level Elements
8.10.1. Output Triggered by a Method
8.10.2. Output Triggered by a Message
8.10.3. Consumer/Producer
8.10.4. Common
8.11. Multiple Contracts in One File
8.12. Generating Spring REST Docs snippets from the contracts
9. Customization
9.1. Extending the DSL
9.1.1. Common JAR
9.1.2. Adding the Dependency to the Project
9.1.3. Test the Dependency in the Project’s Dependencies
9.1.4. Test a Dependency in the Plugin’s Dependencies
9.1.5. Referencing classes in DSLs
10. Using the Pluggable Architecture
10.1. Custom Contract Converter
10.1.1. Pact Converter
10.1.2. Pact Contract
10.1.3. Pact for Producers
10.1.4. Pact for Consumers
10.2. Using the Custom Test Generator
10.3. Using the Custom Stub Generator
10.4. Using the Custom Stub Runner
10.5. Using the Custom Stub Downloader
10.6. Using the SCM Stub Downloader
10.7. Using the Pact Stub Downloader
11. Spring Cloud Contract WireMock
11.1. Registering Stubs Automatically
11.2. Using Files to Specify the Stub Bodies
11.3. Alternative: Using JUnit Rules
11.4. Relaxed SSL Validation for Rest Template
11.5. WireMock and Spring MVC Mocks
11.6. Customization of WireMock configuration
11.7. Generating Stubs using REST Docs
11.8. Generating Contracts by Using REST Docs
12. Migrations
12.1. 1.0.x → 1.1.x
12.1.1. New structure of generated stubs
12.2. 1.1.x → 1.2.x
12.2.1. Custom HttpServerStub
12.2.2. New packages for generated tests
12.2.3. New Methods in TemplateProcessor
12.2.4. RestAssured 3.0
12.3. 1.2.x → 2.0.x
12.3.1. No Camel support
13. Links
   Next
   
\ No newline at end of file + Spring Cloud Contract
Spring Cloud Contract
   Next

Spring Cloud Contract

Table of Contents

1. Spring Cloud Contract
2. Spring Cloud Contract Verifier Introduction
2.1. Why a Contract Verifier?
2.1.1. Testing issues
2.2. Purposes
2.3. How It Works
2.3.1. A Three-second Tour
On the Producer Side
On the Consumer Side
2.3.2. A Three-minute Tour
On the Producer Side
On the Consumer Side
2.3.3. Defining the Contract
2.3.4. Client Side
2.3.5. Server Side
2.4. Step-by-step Guide to Consumer Driven Contracts (CDC)
2.4.1. Technical note
2.4.2. Consumer side (Loan Issuance)
2.4.3. Producer side (Fraud Detection server)
2.4.4. Consumer Side (Loan Issuance) Final Step
2.5. Dependencies
2.6. Additional Links
2.6.1. Spring Cloud Contract video
2.6.2. Readings
2.7. Samples
3. Spring Cloud Contract FAQ
3.1. Why use Spring Cloud Contract Verifier and not X ?
3.2. I don’t want to write a contract in Groovy!
3.3. What is this value(consumer(), producer()) ?
3.4. How to do Stubs versioning?
3.4.1. API Versioning
3.4.2. JAR versioning
3.4.3. Dev or prod stubs
3.5. Common repo with contracts
3.5.1. Repo structure
3.5.2. Workflow
3.5.3. Consumer
3.5.4. Producer
3.5.5. How can I define messaging contracts per topic not per producer?
For Maven Project
For Gradle Project
3.6. Do I need a Binary Storage? Can’t I use Git?
3.6.1. Protocol convention
3.6.2. Producer
Keeping contracts with the producer and stubs in an external repository
3.6.3. Consumer
3.7. Can I use the Pact Broker?
3.7.1. Pact Consumer
3.7.2. Producer
3.7.3. Pact Consumer (Producer Contract approach)
3.8. How can I debug the request/response being sent by the generated tests client?
3.8.1. How can I debug the mapping/request/response being sent by WireMock?
3.8.2. How can I see what got registered in the HTTP server stub?
3.8.3. Can I reference text from file?
3.8.4. Why do I sometimes get SocketException
4. Spring Cloud Contract Verifier Setup
4.1. Gradle Project
4.1.1. Prerequisites
4.1.2. Add Gradle Plugin with Dependencies
4.1.3. Gradle and Rest Assured 2.0
4.1.4. Snapshot Versions for Gradle
4.1.5. Add stubs
4.1.6. Run the Plugin
4.1.7. Default Setup
4.1.8. Configure Plugin
4.1.9. Configuration Options
4.1.10. Single Base Class for All Tests
4.1.11. Different Base Classes for Contracts
4.1.12. Invoking Generated Tests
4.1.13. Pushing stubs to SCM
4.1.14. Spring Cloud Contract Verifier on the Consumer Side
4.2. Maven Project
4.2.1. Add maven plugin
4.2.2. Maven and Rest Assured 2.0
4.2.3. Snapshot versions for Maven
4.2.4. Add stubs
4.2.5. Run plugin
4.2.6. Configure plugin
4.2.7. Configuration Options
4.2.8. Single Base Class for All Tests
4.2.9. Different base classes for contracts
4.2.10. Invoking generated tests
4.2.11. Pushing stubs to SCM
4.2.12. Maven Plugin and STS
4.3. Stubs and Transitive Dependencies
4.4. CI Server setup
4.5. Scenarios
4.6. Docker Project
4.6.1. Short intro to Maven, JARs and Binary storage
4.6.2. How it works
Environment Variables
4.6.3. Example of usage
4.6.4. Server side (nodejs)
5. Spring Cloud Contract Verifier Messaging
5.1. Integrations
5.2. Manual Integration Testing
5.3. Publisher-Side Test Generation
5.3.1. Scenario 1: No Input Message
5.3.2. Scenario 2: Output Triggered by Input
5.3.3. Scenario 3: No Output Message
5.4. Consumer Stub Generation
6. Spring Cloud Contract Stub Runner
6.1. Snapshot versions
6.2. Publishing Stubs as JARs
6.3. Stub Runner Core
6.3.1. Retrieving stubs
Stub downloading
Classpath scanning
6.3.2. Running stubs
Running using main app
HTTP Stubs
Viewing registered mappings
Messaging Stubs
6.4. Stub Runner JUnit Rule
6.4.1. Maven settings
6.4.2. Providing fixed ports
6.4.3. Fluent API
6.4.4. Stub Runner with Spring
6.5. Stub Runner Spring Cloud
6.5.1. Stubbing Service Discovery
Test profiles and service discovery
6.5.2. Additional Configuration
6.6. Stub Runner Boot Application
6.6.1. How to use it?
Stub Runner Server
Stub Runner Server Fat Jar
Spring Cloud CLI
6.6.2. Endpoints
HTTP
Messaging
6.6.3. Example
6.6.4. Stub Runner Boot with Service Discovery
6.7. Stubs Per Consumer
6.8. Common
6.8.1. Common Properties for JUnit and Spring
6.8.2. Stub Runner Stubs IDs
6.9. Stub Runner Docker
6.9.1. How to use it
6.9.2. Example of client side usage in a non JVM project
7. Stub Runner for Messaging
7.1. Stub triggering
7.1.1. Trigger by Label
7.1.2. Trigger by Group and Artifact Ids
7.1.3. Trigger by Artifact Ids
7.1.4. Trigger All Messages
7.2. Stub Runner Integration
7.2.1. Adding the Runner to the Project
7.2.2. Disabling the functionality
Scenario 1 (no input message)
Scenario 2 (output triggered by input)
Scenario 3 (input with no output)
7.3. Stub Runner Stream
7.3.1. Adding the Runner to the Project
7.3.2. Disabling the functionality
Scenario 1 (no input message)
Scenario 2 (output triggered by input)
Scenario 3 (input with no output)
7.4. Stub Runner Spring AMQP
7.4.1. Adding the Runner to the Project
Triggering the message
Spring AMQP Test Configuration
8. Contract DSL
8.1. Limitations
8.2. Common Top-Level elements
8.2.1. Description
8.2.2. Name
8.2.3. Ignoring Contracts
8.2.4. Passing Values from Files
8.2.5. HTTP Top-Level Elements
8.3. Request
8.4. Response
8.5. Dynamic properties
8.5.1. Dynamic properties inside the body
8.5.2. Regular expressions
8.5.3. Passing Optional Parameters
8.5.4. Executing Custom Methods on the Server Side
8.5.5. Referencing the Request from the Response
8.5.6. Registering Your Own WireMock Extension
8.5.7. Dynamic Properties in the Matchers Sections
8.6. JAX-RS Support
8.7. Async Support
8.8. Working with Context Paths
8.9. Working with Web Flux
8.10. Messaging Top-Level Elements
8.10.1. Output Triggered by a Method
8.10.2. Output Triggered by a Message
8.10.3. Consumer/Producer
8.10.4. Common
8.11. Multiple Contracts in One File
8.12. Generating Spring REST Docs snippets from the contracts
9. Customization
9.1. Extending the DSL
9.1.1. Common JAR
9.1.2. Adding the Dependency to the Project
9.1.3. Test the Dependency in the Project’s Dependencies
9.1.4. Test a Dependency in the Plugin’s Dependencies
9.1.5. Referencing classes in DSLs
10. Using the Pluggable Architecture
10.1. Custom Contract Converter
10.1.1. Pact Converter
10.1.2. Pact Contract
10.1.3. Pact for Producers
10.1.4. Pact for Consumers
10.2. Using the Custom Test Generator
10.3. Using the Custom Stub Generator
10.4. Using the Custom Stub Runner
10.5. Using the Custom Stub Downloader
10.6. Using the SCM Stub Downloader
10.7. Using the Pact Stub Downloader
11. Spring Cloud Contract WireMock
11.1. Registering Stubs Automatically
11.2. Using Files to Specify the Stub Bodies
11.3. Alternative: Using JUnit Rules
11.4. Relaxed SSL Validation for Rest Template
11.5. WireMock and Spring MVC Mocks
11.6. Customization of WireMock configuration
11.7. Generating Stubs using REST Docs
11.8. Generating Contracts by Using REST Docs
12. Migrations
12.1. 1.0.x → 1.1.x
12.1.1. New structure of generated stubs
12.2. 1.1.x → 1.2.x
12.2.1. Custom HttpServerStub
12.2.2. New packages for generated tests
12.2.3. New Methods in TemplateProcessor
12.2.4. RestAssured 3.0
12.3. 1.2.x → 2.0.x
12.3.1. No Camel support
13. Links
   Next
   
\ No newline at end of file diff --git a/2.0.x/single/spring-cloud-contract.html b/2.0.x/single/spring-cloud-contract.html index 4c7ad5defa..628be38f01 100644 --- a/2.0.x/single/spring-cloud-contract.html +++ b/2.0.x/single/spring-cloud-contract.html @@ -1,6 +1,6 @@ - Spring Cloud Contract

Spring Cloud Contract

Table of Contents

1. Spring Cloud Contract
2. Spring Cloud Contract Verifier Introduction
2.1. Why a Contract Verifier?
2.1.1. Testing issues
2.2. Purposes
2.3. How It Works
2.3.1. A Three-second Tour
On the Producer Side
On the Consumer Side
2.3.2. A Three-minute Tour
On the Producer Side
On the Consumer Side
2.3.3. Defining the Contract
2.3.4. Client Side
2.3.5. Server Side
2.4. Step-by-step Guide to Consumer Driven Contracts (CDC)
2.4.1. Technical note
2.4.2. Consumer side (Loan Issuance)
2.4.3. Producer side (Fraud Detection server)
2.4.4. Consumer Side (Loan Issuance) Final Step
2.5. Dependencies
2.6. Additional Links
2.6.1. Spring Cloud Contract video
2.6.2. Readings
2.7. Samples
3. Spring Cloud Contract FAQ
3.1. Why use Spring Cloud Contract Verifier and not X ?
3.2. I don’t want to write a contract in Groovy!
3.3. What is this value(consumer(), producer()) ?
3.4. How to do Stubs versioning?
3.4.1. API Versioning
3.4.2. JAR versioning
3.4.3. Dev or prod stubs
3.5. Common repo with contracts
3.5.1. Repo structure
3.5.2. Workflow
3.5.3. Consumer
3.5.4. Producer
3.5.5. How can I define messaging contracts per topic not per producer?
For Maven Project
For Gradle Project
3.6. Do I need a Binary Storage? Can’t I use Git?
3.6.1. Protocol convention
3.6.2. Producer
Keeping contracts with the producer and stubs in an external repository
3.6.3. Consumer
3.7. Can I use the Pact Broker?
3.7.1. Pact Consumer
3.7.2. Producer
3.7.3. Pact Consumer (Producer Contract approach)
3.8. How can I debug the request/response being sent by the generated tests client?
3.8.1. How can I debug the mapping/request/response being sent by WireMock?
3.8.2. How can I see what got registered in the HTTP server stub?
3.8.3. Can I reference text from file?
4. Spring Cloud Contract Verifier Setup
4.1. Gradle Project
4.1.1. Prerequisites
4.1.2. Add Gradle Plugin with Dependencies
4.1.3. Gradle and Rest Assured 2.0
4.1.4. Snapshot Versions for Gradle
4.1.5. Add stubs
4.1.6. Run the Plugin
4.1.7. Default Setup
4.1.8. Configure Plugin
4.1.9. Configuration Options
4.1.10. Single Base Class for All Tests
4.1.11. Different Base Classes for Contracts
4.1.12. Invoking Generated Tests
4.1.13. Pushing stubs to SCM
4.1.14. Spring Cloud Contract Verifier on the Consumer Side
4.2. Maven Project
4.2.1. Add maven plugin
4.2.2. Maven and Rest Assured 2.0
4.2.3. Snapshot versions for Maven
4.2.4. Add stubs
4.2.5. Run plugin
4.2.6. Configure plugin
4.2.7. Configuration Options
4.2.8. Single Base Class for All Tests
4.2.9. Different base classes for contracts
4.2.10. Invoking generated tests
4.2.11. Pushing stubs to SCM
4.2.12. Maven Plugin and STS
4.3. Stubs and Transitive Dependencies
4.4. CI Server setup
4.5. Scenarios
4.6. Docker Project
4.6.1. Short intro to Maven, JARs and Binary storage
4.6.2. How it works
Environment Variables
4.6.3. Example of usage
4.6.4. Server side (nodejs)
5. Spring Cloud Contract Verifier Messaging
5.1. Integrations
5.2. Manual Integration Testing
5.3. Publisher-Side Test Generation
5.3.1. Scenario 1: No Input Message
5.3.2. Scenario 2: Output Triggered by Input
5.3.3. Scenario 3: No Output Message
5.4. Consumer Stub Generation
6. Spring Cloud Contract Stub Runner
6.1. Snapshot versions
6.2. Publishing Stubs as JARs
6.3. Stub Runner Core
6.3.1. Retrieving stubs
Stub downloading
Classpath scanning
6.3.2. Running stubs
Running using main app
HTTP Stubs
Viewing registered mappings
Messaging Stubs
6.4. Stub Runner JUnit Rule
6.4.1. Maven settings
6.4.2. Providing fixed ports
6.4.3. Fluent API
6.4.4. Stub Runner with Spring
6.5. Stub Runner Spring Cloud
6.5.1. Stubbing Service Discovery
Test profiles and service discovery
6.5.2. Additional Configuration
6.6. Stub Runner Boot Application
6.6.1. How to use it?
Stub Runner Server
Stub Runner Server Fat Jar
Spring Cloud CLI
6.6.2. Endpoints
HTTP
Messaging
6.6.3. Example
6.6.4. Stub Runner Boot with Service Discovery
6.7. Stubs Per Consumer
6.8. Common
6.8.1. Common Properties for JUnit and Spring
6.8.2. Stub Runner Stubs IDs
6.9. Stub Runner Docker
6.9.1. How to use it
6.9.2. Example of client side usage in a non JVM project
7. Stub Runner for Messaging
7.1. Stub triggering
7.1.1. Trigger by Label
7.1.2. Trigger by Group and Artifact Ids
7.1.3. Trigger by Artifact Ids
7.1.4. Trigger All Messages
7.2. Stub Runner Integration
7.2.1. Adding the Runner to the Project
7.2.2. Disabling the functionality
Scenario 1 (no input message)
Scenario 2 (output triggered by input)
Scenario 3 (input with no output)
7.3. Stub Runner Stream
7.3.1. Adding the Runner to the Project
7.3.2. Disabling the functionality
Scenario 1 (no input message)
Scenario 2 (output triggered by input)
Scenario 3 (input with no output)
7.4. Stub Runner Spring AMQP
7.4.1. Adding the Runner to the Project
Triggering the message
Spring AMQP Test Configuration
8. Contract DSL
8.1. Limitations
8.2. Common Top-Level elements
8.2.1. Description
8.2.2. Name
8.2.3. Ignoring Contracts
8.2.4. Passing Values from Files
8.2.5. HTTP Top-Level Elements
8.3. Request
8.4. Response
8.5. Dynamic properties
8.5.1. Dynamic properties inside the body
8.5.2. Regular expressions
8.5.3. Passing Optional Parameters
8.5.4. Executing Custom Methods on the Server Side
8.5.5. Referencing the Request from the Response
8.5.6. Registering Your Own WireMock Extension
8.5.7. Dynamic Properties in the Matchers Sections
8.6. JAX-RS Support
8.7. Async Support
8.8. Working with Context Paths
8.9. Working with Web Flux
8.10. Messaging Top-Level Elements
8.10.1. Output Triggered by a Method
8.10.2. Output Triggered by a Message
8.10.3. Consumer/Producer
8.10.4. Common
8.11. Multiple Contracts in One File
8.12. Generating Spring REST Docs snippets from the contracts
9. Customization
9.1. Extending the DSL
9.1.1. Common JAR
9.1.2. Adding the Dependency to the Project
9.1.3. Test the Dependency in the Project’s Dependencies
9.1.4. Test a Dependency in the Plugin’s Dependencies
9.1.5. Referencing classes in DSLs
10. Using the Pluggable Architecture
10.1. Custom Contract Converter
10.1.1. Pact Converter
10.1.2. Pact Contract
10.1.3. Pact for Producers
10.1.4. Pact for Consumers
10.2. Using the Custom Test Generator
10.3. Using the Custom Stub Generator
10.4. Using the Custom Stub Runner
10.5. Using the Custom Stub Downloader
10.6. Using the SCM Stub Downloader
10.7. Using the Pact Stub Downloader
11. Spring Cloud Contract WireMock
11.1. Registering Stubs Automatically
11.2. Using Files to Specify the Stub Bodies
11.3. Alternative: Using JUnit Rules
11.4. Relaxed SSL Validation for Rest Template
11.5. WireMock and Spring MVC Mocks
11.6. Customization of WireMock configuration
11.7. Generating Stubs using REST Docs
11.8. Generating Contracts by Using REST Docs
12. Migrations
12.1. 1.0.x → 1.1.x
12.1.1. New structure of generated stubs
12.2. 1.1.x → 1.2.x
12.2.1. Custom HttpServerStub
12.2.2. New packages for generated tests
12.2.3. New Methods in TemplateProcessor
12.2.4. RestAssured 3.0
12.3. 1.2.x → 2.0.x
12.3.1. No Camel support
13. Links

Documentation Authors: Adam Dudczak, Mathias Düsterhöft, Marcin Grzejszczak, Dennis Kieselhorst, Jakub Kubryński, Karol Lassak, + Spring Cloud Contract

Spring Cloud Contract

Table of Contents

1. Spring Cloud Contract
2. Spring Cloud Contract Verifier Introduction
2.1. Why a Contract Verifier?
2.1.1. Testing issues
2.2. Purposes
2.3. How It Works
2.3.1. A Three-second Tour
On the Producer Side
On the Consumer Side
2.3.2. A Three-minute Tour
On the Producer Side
On the Consumer Side
2.3.3. Defining the Contract
2.3.4. Client Side
2.3.5. Server Side
2.4. Step-by-step Guide to Consumer Driven Contracts (CDC)
2.4.1. Technical note
2.4.2. Consumer side (Loan Issuance)
2.4.3. Producer side (Fraud Detection server)
2.4.4. Consumer Side (Loan Issuance) Final Step
2.5. Dependencies
2.6. Additional Links
2.6.1. Spring Cloud Contract video
2.6.2. Readings
2.7. Samples
3. Spring Cloud Contract FAQ
3.1. Why use Spring Cloud Contract Verifier and not X ?
3.2. I don’t want to write a contract in Groovy!
3.3. What is this value(consumer(), producer()) ?
3.4. How to do Stubs versioning?
3.4.1. API Versioning
3.4.2. JAR versioning
3.4.3. Dev or prod stubs
3.5. Common repo with contracts
3.5.1. Repo structure
3.5.2. Workflow
3.5.3. Consumer
3.5.4. Producer
3.5.5. How can I define messaging contracts per topic not per producer?
For Maven Project
For Gradle Project
3.6. Do I need a Binary Storage? Can’t I use Git?
3.6.1. Protocol convention
3.6.2. Producer
Keeping contracts with the producer and stubs in an external repository
3.6.3. Consumer
3.7. Can I use the Pact Broker?
3.7.1. Pact Consumer
3.7.2. Producer
3.7.3. Pact Consumer (Producer Contract approach)
3.8. How can I debug the request/response being sent by the generated tests client?
3.8.1. How can I debug the mapping/request/response being sent by WireMock?
3.8.2. How can I see what got registered in the HTTP server stub?
3.8.3. Can I reference text from file?
3.8.4. Why do I sometimes get SocketException
4. Spring Cloud Contract Verifier Setup
4.1. Gradle Project
4.1.1. Prerequisites
4.1.2. Add Gradle Plugin with Dependencies
4.1.3. Gradle and Rest Assured 2.0
4.1.4. Snapshot Versions for Gradle
4.1.5. Add stubs
4.1.6. Run the Plugin
4.1.7. Default Setup
4.1.8. Configure Plugin
4.1.9. Configuration Options
4.1.10. Single Base Class for All Tests
4.1.11. Different Base Classes for Contracts
4.1.12. Invoking Generated Tests
4.1.13. Pushing stubs to SCM
4.1.14. Spring Cloud Contract Verifier on the Consumer Side
4.2. Maven Project
4.2.1. Add maven plugin
4.2.2. Maven and Rest Assured 2.0
4.2.3. Snapshot versions for Maven
4.2.4. Add stubs
4.2.5. Run plugin
4.2.6. Configure plugin
4.2.7. Configuration Options
4.2.8. Single Base Class for All Tests
4.2.9. Different base classes for contracts
4.2.10. Invoking generated tests
4.2.11. Pushing stubs to SCM
4.2.12. Maven Plugin and STS
4.3. Stubs and Transitive Dependencies
4.4. CI Server setup
4.5. Scenarios
4.6. Docker Project
4.6.1. Short intro to Maven, JARs and Binary storage
4.6.2. How it works
Environment Variables
4.6.3. Example of usage
4.6.4. Server side (nodejs)
5. Spring Cloud Contract Verifier Messaging
5.1. Integrations
5.2. Manual Integration Testing
5.3. Publisher-Side Test Generation
5.3.1. Scenario 1: No Input Message
5.3.2. Scenario 2: Output Triggered by Input
5.3.3. Scenario 3: No Output Message
5.4. Consumer Stub Generation
6. Spring Cloud Contract Stub Runner
6.1. Snapshot versions
6.2. Publishing Stubs as JARs
6.3. Stub Runner Core
6.3.1. Retrieving stubs
Stub downloading
Classpath scanning
6.3.2. Running stubs
Running using main app
HTTP Stubs
Viewing registered mappings
Messaging Stubs
6.4. Stub Runner JUnit Rule
6.4.1. Maven settings
6.4.2. Providing fixed ports
6.4.3. Fluent API
6.4.4. Stub Runner with Spring
6.5. Stub Runner Spring Cloud
6.5.1. Stubbing Service Discovery
Test profiles and service discovery
6.5.2. Additional Configuration
6.6. Stub Runner Boot Application
6.6.1. How to use it?
Stub Runner Server
Stub Runner Server Fat Jar
Spring Cloud CLI
6.6.2. Endpoints
HTTP
Messaging
6.6.3. Example
6.6.4. Stub Runner Boot with Service Discovery
6.7. Stubs Per Consumer
6.8. Common
6.8.1. Common Properties for JUnit and Spring
6.8.2. Stub Runner Stubs IDs
6.9. Stub Runner Docker
6.9.1. How to use it
6.9.2. Example of client side usage in a non JVM project
7. Stub Runner for Messaging
7.1. Stub triggering
7.1.1. Trigger by Label
7.1.2. Trigger by Group and Artifact Ids
7.1.3. Trigger by Artifact Ids
7.1.4. Trigger All Messages
7.2. Stub Runner Integration
7.2.1. Adding the Runner to the Project
7.2.2. Disabling the functionality
Scenario 1 (no input message)
Scenario 2 (output triggered by input)
Scenario 3 (input with no output)
7.3. Stub Runner Stream
7.3.1. Adding the Runner to the Project
7.3.2. Disabling the functionality
Scenario 1 (no input message)
Scenario 2 (output triggered by input)
Scenario 3 (input with no output)
7.4. Stub Runner Spring AMQP
7.4.1. Adding the Runner to the Project
Triggering the message
Spring AMQP Test Configuration
8. Contract DSL
8.1. Limitations
8.2. Common Top-Level elements
8.2.1. Description
8.2.2. Name
8.2.3. Ignoring Contracts
8.2.4. Passing Values from Files
8.2.5. HTTP Top-Level Elements
8.3. Request
8.4. Response
8.5. Dynamic properties
8.5.1. Dynamic properties inside the body
8.5.2. Regular expressions
8.5.3. Passing Optional Parameters
8.5.4. Executing Custom Methods on the Server Side
8.5.5. Referencing the Request from the Response
8.5.6. Registering Your Own WireMock Extension
8.5.7. Dynamic Properties in the Matchers Sections
8.6. JAX-RS Support
8.7. Async Support
8.8. Working with Context Paths
8.9. Working with Web Flux
8.10. Messaging Top-Level Elements
8.10.1. Output Triggered by a Method
8.10.2. Output Triggered by a Message
8.10.3. Consumer/Producer
8.10.4. Common
8.11. Multiple Contracts in One File
8.12. Generating Spring REST Docs snippets from the contracts
9. Customization
9.1. Extending the DSL
9.1.1. Common JAR
9.1.2. Adding the Dependency to the Project
9.1.3. Test the Dependency in the Project’s Dependencies
9.1.4. Test a Dependency in the Plugin’s Dependencies
9.1.5. Referencing classes in DSLs
10. Using the Pluggable Architecture
10.1. Custom Contract Converter
10.1.1. Pact Converter
10.1.2. Pact Contract
10.1.3. Pact for Producers
10.1.4. Pact for Consumers
10.2. Using the Custom Test Generator
10.3. Using the Custom Stub Generator
10.4. Using the Custom Stub Runner
10.5. Using the Custom Stub Downloader
10.6. Using the SCM Stub Downloader
10.7. Using the Pact Stub Downloader
11. Spring Cloud Contract WireMock
11.1. Registering Stubs Automatically
11.2. Using Files to Specify the Stub Bodies
11.3. Alternative: Using JUnit Rules
11.4. Relaxed SSL Validation for Rest Template
11.5. WireMock and Spring MVC Mocks
11.6. Customization of WireMock configuration
11.7. Generating Stubs using REST Docs
11.8. Generating Contracts by Using REST Docs
12. Migrations
12.1. 1.0.x → 1.1.x
12.1.1. New structure of generated stubs
12.2. 1.1.x → 1.2.x
12.2.1. Custom HttpServerStub
12.2.2. New packages for generated tests
12.2.3. New Methods in TemplateProcessor
12.2.4. RestAssured 3.0
12.3. 1.2.x → 2.0.x
12.3.1. No Camel support
13. Links

Documentation Authors: Adam Dudczak, Mathias Düsterhöft, Marcin Grzejszczak, Dennis Kieselhorst, Jakub Kubryński, Karol Lassak, Olga Maciaszek-Sharma, Mariusz Smykuła, Dave Syer, Jay Bryant

2.0.3.BUILD-SNAPSHOT

1. Spring Cloud Contract

You need confidence when pushing new features to a new application or service in a distributed system. This project provides support for Consumer Driven Contracts and service schemas in Spring applications (for both HTTP and message-based interactions), @@ -1420,7 +1420,16 @@ matching response definition was picked.

To turn off this feature just bum to dump all mappings per artifact id. Also the port at which the given stub server was started will be attached.

3.8.3 Can I reference text from file?

Yes! With version 1.2.0 we’ve added such a possibility. It’s enough to call file(…​) method in the DSL and provide a path relative to where the contract lays. -If you’re using YAML just use the bodyFromFile property.

4. Spring Cloud Contract Verifier Setup

You can set up Spring Cloud Contract Verifier in the following ways:

4.1 Gradle Project

To learn how to set up the Gradle project for Spring Cloud Contract Verifier, read the +If you’re using YAML just use the bodyFromFile property.

3.8.4 Why do I sometimes get SocketException

When using an HTTP client (e.g. RestTemplate) and running several tests that share a Spring context, you might sometimes get the following exception:

java.net.SocketException: Unexpected end of file from server

Tom Akehurst, the creator of WireMock did the following analysis of this issue.

I looked at tcpdump while running the failing test. HttpUrlConnection is doing something weird - it’s creating a connection in a previous test case, which works fine, then the usual fin → fin ack etc. ending handshake happens. But it seems it isn’t discarded, but reused after that. Because the server thinks (rightly) that the connection is closed, it just sends a RST packet. Calling the /__admin endpoint just happened to remove the dead connection from the pool. This also fixes the problem (which using the Java HTTP client): System.setProperty("http.keepAlive", "false");

There are the ways to solve this problem.

First, just use a different HTTP client for RestTemplate. Example for using Apache HTTP client:

pom.xml.  +

<dependency>
+	<groupId>org.apache.httpcomponents</groupId>
+	<artifactId>httpclient</artifactId>
+	<scope>compile</scope>
+</dependency>

+

this.restTemplate
+		.setRequestFactory(new HttpComponentsClientHttpRequestFactory());

Second option is to set the system property. You can set it either in code or pass it to your tests via a plugin.

static {
+	 System.setProperty("http.keepAlive", "false");
+}

4. Spring Cloud Contract Verifier Setup

You can set up Spring Cloud Contract Verifier in the following ways:

4.1 Gradle Project

To learn how to set up the Gradle project for Spring Cloud Contract Verifier, read the following sections:

4.1.1 Prerequisites

In order to use Spring Cloud Contract Verifier with WireMock, you muse use either a Gradle or a Maven plugin.

[Warning]Warning

If you want to use Spock in your projects, you must add separately the spock-core and spock-spring modules. Check Spock @@ -6071,7 +6080,7 @@ to clone the repository and use it as a source of contracts to generate tests or stubs.

Either via environment variables, system properties, properties set inside the plugin or contracts repository configuration you can tweak the downloader’s behaviour. Below you can find the list of -properties

Table 10.1. SCM Stub Downloader properties

Type of a property

Name of the property

Description

* git.branch (plugin prop) +properties

Table 10.1. SCM Stub Downloader properties

Type of a property

Name of the property

Description

* git.branch (plugin prop)

* stubrunner.properties.git.branch (system prop)

* STUBRUNNER_PROPERTIES_GIT_BRANCH (env prop)

master

Which branch to checkout

* git.username (plugin prop)

* stubrunner.properties.git.username (system prop) @@ -6087,7 +6096,7 @@ to fetch the Pact contract definitions from the Pact Broker. Whatever is set after pact:// will be parsed as the Pact Broker URL.

Either via environment variables, system properties, properties set inside the plugin or contracts repository configuration you can tweak the downloader’s behaviour. Below you can find the list of -properties

Table 10.2. SCM Stub Downloader properties

Name of a property

Default

Description

* pactbroker.host (plugin prop) +properties

Table 10.2. SCM Stub Downloader properties

Name of a property

Default

Description

* pactbroker.host (plugin prop)

* stubrunner.properties.pactbroker.host (system prop)

* STUBRUNNER_PROPERTIES_PACTBROKER_HOST (env prop)

Host from URL passed to repositoryRoot

What is the URL of Pact Broker

* pactbroker.port (plugin prop)

* stubrunner.properties.pactbroker.port (system prop) diff --git a/2.0.x/spring-cloud-contract-maven-plugin/checkstyle.rss b/2.0.x/spring-cloud-contract-maven-plugin/checkstyle.rss index 32043763e5..6713ab69b6 100644 --- a/2.0.x/spring-cloud-contract-maven-plugin/checkstyle.rss +++ b/2.0.x/spring-cloud-contract-maven-plugin/checkstyle.rss @@ -130,7 +130,7 @@ under the License.

- org/springframework/cloud/contract/maven/verifier/stubrunner/RemoteStubRunner.java + org/springframework/cloud/contract/maven/verifier/RunMojo.java 0 @@ -158,7 +158,7 @@ under the License.
- org/springframework/cloud/contract/maven/verifier/RunMojo.java + org/springframework/cloud/contract/maven/verifier/stubrunner/RemoteStubRunner.java 0 diff --git a/2.0.x/spring-cloud-contract.xml b/2.0.x/spring-cloud-contract.xml index 2527c1413b..612ff73424 100644 --- a/2.0.x/spring-cloud-contract.xml +++ b/2.0.x/spring-cloud-contract.xml @@ -4,7 +4,7 @@ Spring Cloud Contract -2018-12-16 +2018-12-15 @@ -2360,6 +2360,33 @@ started will be attached. DSL and provide a path relative to where the contract lays. If you’re using YAML just use the bodyFromFile property. +
+Why do I sometimes get <literal>SocketException</literal> +When using an HTTP client (e.g. RestTemplate) and running several tests that share a Spring context, you might sometimes get the following exception: +java.net.SocketException: Unexpected end of file from server +Tom Akehurst, the creator of WireMock did the following analysis of this issue. +
+I looked at tcpdump while running the failing test. HttpUrlConnection is doing something weird - it’s creating a connection in a previous test case, which works fine, then the usual fin → fin ack etc. ending handshake happens. But it seems it isn’t discarded, but reused after that. Because the server thinks (rightly) that the connection is closed, it just sends a RST packet. Calling the /__admin endpoint just happened to remove the dead connection from the pool. This also fixes the problem (which using the Java HTTP client): System.setProperty("http.keepAlive", "false"); +
+There are the ways to solve this problem. +First, just use a different HTTP client for RestTemplate. Example for using Apache HTTP client: + +pom.xml + +<dependency> + <groupId>org.apache.httpcomponents</groupId> + <artifactId>httpclient</artifactId> + <scope>compile</scope> +</dependency> + + +this.restTemplate + .setRequestFactory(new HttpComponentsClientHttpRequestFactory()); +Second option is to set the system property. You can set it either in code or pass it to your tests via a plugin. +static { + System.setProperty("http.keepAlive", "false"); +} +