Retain application context between test classes #36069
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Add @RetainApplicationContext annotation to prevent pausing and restarting the ApplicationContext between test classes when SmartLifecycle beans are expensive to stop/start. Update DefaultTestContext.markApplicationContextUnused() to respect this annotation. Closes spring-projectsgh-36044 Signed-off-by: Painfu11y <333vahan777@gmail.com>
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Thanks but the related issue is already assigned and the implementation chosen here does not match the intent of the team. |
bclozel
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Problem:
Tests using @SpringBootTest are slower in Spring Boot 4.0 because
ApplicationContext is paused/restarted between test classes even
when they share the same context. This particularly affects tests
with expensive SmartLifecycle beans like Kafka consumers.
Solution:
Introduce @RetainApplicationContext annotation to mark test classes
whose context should not be paused/restarted. Update
DefaultTestContext.markApplicationContextUnused() to check for this
annotation before unregistering context usage.
Usage:
Annotate abstract test classes with @RetainApplicationContext to
retain context between subclasses, reducing overhead.
Closes gh-36044