JIRA: https://jira.spring.io/browse/INT-4251
MockIntegration PoC
Demonstrate how `MockIntegration.mockMessageSource()` can be used.
Even from the XML Config!
The same semantics can be applied for any other our mocking features we will add to the `MockIntegration`
Add `testMockMessageSourceDynamicFlow()`
Improve `MockIntegration.Context.instead()` for target bean type assertion
Some refactoring, improvements and JavaDocs
* Move `MockIntegration.Context` to its own `MockIntegrationContext` class
* Rename `@MockIntegrationTest` to `@SpringIntegrationTest` since we talk there not only about mocks, but any other possible testing feature for integration
* Add `@SpringIntegrationTest#stopEndpoints()` attribute for endpoints bean names patterns
* Add `IntegrationEndpointsInitializer` to customize `AbstractEndpoint`s according options from the `@SpringIntegrationTest`
Right now it is only about making them `autoStartup = false`
* Rename `SI-test` to `SI-test-support`
* Rename `SI-mock` to `SI-test`
* Rename `@SpringIntegrationTest#stopEndpoints()` to `noAutoStartup()`
* Fix JavaDocs according PR comments
* Increase timeouts in some sporadically failed tests
* Draft for the `testing.adoc`
Fixesspring-projects/spring-integration-java-dsl#23
Fix `testing.adoc` a bit
* Document Testing Support
* Fix a couple typos in the `xml.adoc`
* Add `package-info.java` files to `/test/` sub-packages
Improve docs according PR comments
Fix typos in `TestUtils` JavaDocs
Add `What's New` note about Java DSL and Testing support
Doc Polishing
2862c449c5