- Extract code examples to separate Java, Kotlin, and XML files
- Add Kotlin configuration sample alongside Java
- Change "Java Config" terminology to "Programmatic Configuration"
- Use include-code directive for better maintainability
See gh-36323
Signed-off-by: jisub-dev <kimjiseob1209@gmail.com>
Prior to this commit, flush calls on the output stream returned by
`ServletServerHttpResponse#getBody` would be delegated to the Servlet
response output stream.
This can cause performance issues when `HttpMessageConverter` and other
web components write and flush multiple times to the response body.
Here, the Servlet container is in a better position to flush to the
network at the optimal time and buffer the response body until then.
This is particularly true for `HttpMessageConverters` when they flush
many times the output stream, sometimes due to the underlying codec
library. Instead of revisiting the entire message converter contract, we
are here ignoring flush calls to that output stream.
This change does not affect the client side, nor the
`ServletServerHttpResponse#flush` calls.
This commit also introduces a new Spring property
`"spring.http.response.flush.enabled"` that reverts this behavior change
if necessary.
Closes gh-36385
This commit also updates the Javadoc for the SpringExtension and
@SpringExtensionConfig to point out that the SpringExtension always
uses a test-class scoped ExtensionContext if
@TestInstance(Lifecycle.PER_CLASS) semantics are in effect.
Closes gh-36240
In commit 9711db787e, we introduced support for disabling test
application context pausing via a Spring property or JVM system
property, as follows.
-Dspring.test.context.cache.pause=never
However, users may actually be interested in keeping the pausing
feature enabled if contexts are not paused unnecessarily.
To address that, this commit introduces a new
PauseMode.ON_CONTEXT_SWITCH enum constant which is now used by default
in the DefaultContextCache.
With this new pause mode, an unused application context will no longer
be paused immediately. Instead, an unused application context will be
paused lazily the first time a different context is retrieved from or
stored in the ContextCache. This effectively means that an unused
context will not be paused at all if the next test class uses the same
context.
Although ON_CONTEXT_SWITCH is the now the default pause mode, users
still have the option to enable context pausing for all usage scenarios
(not only context switches) by setting the Spring property or JVM
system property to ALWAYS (case insensitive) — for example:
-Dspring.test.context.cache.pause=always
This commit also introduces a dedicated "Context Pausing" section in
the reference manual.
See gh-36117
Closes gh-36044
Spring Framework 7.0 introduced support for pausing inactive
application contexts between test classes and restarting them once they
are needed again. If pausing and restarting are fast, this feature does
not have a negative impact on test suites.
However, if the pausing or restarting of certain Lifecycle components
in the application context is slow, that can have a negative impact on
the duration of the overall test suite.
In gh-36044, we hope to find a way to avoid unnecessarily pausing an
application context after a test class if the same context is used by
the next test class that is run. That should help reduce the risk of a
negative impact caused by the pause/restart feature; however, for
certain scenarios that may not be enough. In light of that, this commit
introduces a mechanism for completely disabling the pausing feature via
a Spring property or JVM system property, as follows.
-Dspring.test.context.cache.pause=never
See gh-35168
See gh-36044
Closes gh-36117
jisub-dev