Before deprecating `TestRestTemplate`, we must first stop using it in
smoke tests and replace it with:
* `RestTestClient` when the Spring MVC infrastructure is present
* `RestClient` when the test does not have Spring MVC on classpath
See gh-46632
Previously, spring-boot-restclient was a required dependency of
spring-boot-resttestclient. This had the unwanted side-effect of
increasing the risk of the test classpath enabling auto-configuration
for RestClient.Builder when it was main code that needed such a bean.
This could lead to integration tests passing but the application
itself failing to start when its run through its main method.
This commit makes spring-boot-restclient an optional dependency of
spring-boot-resttestclient. As a result, a dependency on
spring-boot-resttestclient is no longer sufficient to auto-configure
a RestClient.Builder bean, although it is still sufficient to
auto-configure a RestTestClient bean.
Those that wish to use TestRestTemplate rather than migrating to
RestTestClient will now have to add a dependency on
spring-boot-restclient. This makes it presence more obvious. It now
has to be declared directly rather than being somewhat hidden due to
being pulled in transitively. The hope is that this will reduce the
chances of the dependency being accidentially on the test classpath
when main code requires it to be on the runtime classpath.
Fixes gh-48253
This commit harmonizes dependencies used in smoke tests, in particular
by using the starters consistently. This serves not only as a validation
but also a showcase of how to use them.
Closes gh-47836
Create `spring-boot-resttestclient` and `spring-boot-webtestclient`
modules to hold test client auto-configuration and `TestRestTemplate`
code.
Previous these classes were contained in `spring-boot-resetclient-test`
and `spring-boot-webclient-test` which was incorrect since the `-test`
modules should hold code need to test the given modules, not supporting
test classes.
See gh-46356
Co-authored-by: Phillip Webb <phil.webb@broadcom.com>
Relocate `RestTestClientBuilderCustomizer` to `spring-boot-test`
and break the direct link to web-server by making use of
`spring.factories` and the new `BaseUrlProviders` class.
See gh-46356
transitive = false maps to a wildcard exclusion in the published pom.
Unfortunately, this causes problems with Maven as any dependency
on one of the transitive = false modules then has all of its
dependencies excluded, even when it appears elsewhere in the
dependency graph without any exclusions.
Gradle is not affected as it requires an exclusion to be declared
on every route to a dependency for it to be effective. Maven is
affected as it requires the exclusion to be present on only one
route.
Brian Clozel
Andy Wilkinson
Stéphane Nicoll
Moritz Halbritter
