Provide variants of `WebClient` and `WebConnectionHtmlUnitDriver` that
automatically resolve relative URLs to "localhost:${local.server.port}".

Fixes gh-5472

Add Jackson, Gson and Basic String helper classes that allow AssertJ
assertions to be used to test JSON.

Fixes gh-5471

Add a `@MockBean` annotation which can be used to setup and inject mocks
into an application context. The annotation can be used on test classes,
test fields, configuration classes or configuration fields. When used on
a field the annotation also acts as an injection point.

Fixes gh-5042

Update internal tests to drop annotations that can now
be inferred.

Fixes gh-5470

Update @IntegrationTest to use @BootstrapWith rather than an explicitly
defined set of test execution listeners.

Also introduce a new @SpringApplicationTest annotation that is similar
to  @SpringApplicationConfiguration but a bootstrapper.

Fixes gh-5230

Allow detection of `@SpringBootConfiguration` classes for both standard
spring tests and bootstrap (@IntegrationTest @WebIntegrationTest) based
tests.

Closes gh-5295

Add TestTypeExcludeFilter which will automatically attempt to exclude
test only configurations. All `@Configuration` annotated inner-classes
of tests are automatically excluded. The `@TestConfiguration` annotation
can be used to explicitly if a configuration needs explicit exclusion.

See gh-5295
See gh-4901

Add a new TypeFilter specifically for excluding candidate components.
The filter is applied to `@SpringBootApplication` and allows tests to
dynamically contribute exclude filters so that specific classes of
component can be excluded.

See gh-5295
See gh-4901

Add a new @SpringBootConfiguration annotation that can be used to
indicate the primary application configuration. The new annotation is
primarily indented to allow test automatically code to find the main
configuration class.

See gh-5295

Update SpringApplicationContextLoader to call ContextCustomizers in the
same way as other classes in `spring-test`.

Fixes gh-5294

Replace all existing SpringJUnit4ClassRunner references with the new
SpringRunner alias.

Fixes gh-5292

Update the existing tests to use the relocated `spring-boot-test`
classes. Restructuring was achieved using the following command:

find . -type f -name '*.java' -exec sed -i '' \
-e s/org.springframework.boot.test.ConfigFileApplicationContextInitializer/\
org.springframework.boot.test.context.ConfigFileApplicationContextInitializer/g \
-e s/org.springframework.boot.test.EnvironmentTestUtils/\
org.springframework.boot.test.util.EnvironmentTestUtils/g \
-e s/org.springframework.boot.test.IntegrationTest/\
org.springframework.boot.test.context.IntegrationTest/g \
-e s/org.springframework.boot.test.IntegrationTestPropertiesListener/\
org.springframework.boot.test.context.IntegrationTestPropertiesListener/g \
-e s/org.springframework.boot.test.OutputCapture/\
org.springframework.boot.test.rule.OutputCapture/g \
-e s/org.springframework.boot.test.SpringApplicationConfiguration/\
org.springframework.boot.test.context.SpringApplicationConfiguration/g \
-e s/org.springframework.boot.test.SpringApplicationContextLoader/\
org.springframework.boot.test.context.SpringApplicationContextLoader/g \
-e s/org.springframework.boot.test.SpringBootMockServletContext/\
org.springframework.boot.test.mock.web.SpringBootMockServletContext/g \
-e s/org.springframework.boot.test.TestRestTemplate/\
org.springframework.boot.test.web.client.TestRestTemplate/g \
-e s/org.springframework.boot.test.WebIntegrationTest/\
org.springframework.boot.test.context.web.WebIntegrationTest/g {} \;

See gh-5293

Create a new package structure for `spring-boot-test` and deprecate
existing classes.

Fixes gh-5293

Update spring-boot-starter-test to include JSONassert and JsonPath.
Both are generally useful libraries when writing MVC tests.

Fixes gh-5469

Update `@EnableTransactionManagement` so that `proxyTargetClass` is
set to true. This ensures that @Transactional beans that aren't
interface based can still be proxied.

Fixes gh-5423

Call afterPropertiesSet on the delegate `ResourceHttpRequestHandler`
to prevent an NPE. This change is required following SPR-13834.

This is a follow-on from the work done in 50099337. Now that SPR-14015
has been fixed, constructor injection can also be used for parameterised
dependencies, including optional dependencies that are injected via
an ObjectProvider.

Closes gh-5306

Spring Boot does not support Thymeleaf 3 yet. This commit prevents the
auto-configuration to activate if Thymeleaf 3 is available on the
classpath.

Closes gh-5371

This commit excludes the Redis auto-configuration that would attempt
to connect to a redis instance running at localhost otherwise.

This commit prevents the Artemis embedded mode to kick-in if the
`EmbeddedJMS` class it not in the classpath. The previous condition would
match if only `artemis-server` was on the classpath while
`artemis-jms-server` is actually required.

Closes gh-5452

* pr/5455:
  Polish contribution
  Auto-configure Redis repositories

Closes gh-5455

Closes gh-5448

Align dependencies upgrade of the Hopper release.

Closes gh-5150
See gh-5443

Closes gh-5150

* pr/5417:
  Polish contribution
  Support setting webAllowOthers for the H2 Web Console

Closes gh-5417

This commit adds a configuration option for the webAllowOthers option
for the H2 WebServlet. It will only be added it the
spring.h2.console.webAllowOthers is set to true, else it will be
ignored.

Closes gh-5416

* pr/5372:
  Polish contribution
  Improve ActiveMQ connection pool configuration

The properties exposed by the ActiveMQ pooled connection factory are
quite specific and I felt it was arbitrary to expose some and not others.

However, the number of connections and the timeouts seem the most useful
so they have been kept and a `configuration` nested namespace can be
used to configure any additional settings.

The core properties have been renamed to be less "raw" and more compliant
with the structure of other properties. The documentation on fields has
also been aligned.

Closes gh-5372

Closes gh-1598

Closes gh-5403

This commit updates the cache auto-configuration to provide a
`CouchbaseCacheManager` if a `Bucket` has been configured.

The global customizer infrastructure allows to further tune the cache
manager if necessary.

Closes gh-5176