mirror of
https://github.com/spring-projects/spring-framework
synced 2026-06-08 17:33:33 +00:00
Sam Brannen
a10a8e56df
Prior to this commit, executing tests concurrently in the TestContext Framework (TCF) was unsupported and typically lead to unpredictable results. This commit addresses this core issue by supporting concurrent execution in the TestContextManager and the DefaultTestContext. Specifically, the TestContextManager now uses ThreadLocal storage for the current TestContext, thereby ensuring that any registered TestExecutionListeners and the TestContextManager itself operate on a TestContext specific to the current thread. In order to avoid repeatedly incurring the costs of the overhead of the TCF bootstrapping process, the original TestContext built by the TestContextBootstrapper is used as a template which is then passed to the copy constructor of the concrete implementation of the TestContext to create the context for the current thread. DefaultTestContext now implements such a copy constructor, and all concrete implementations of TestContext are encouraged to do the same. If the TestContext built by the TestContextBootstrapper does not provide a copy constructor, thread-safety and support for concurrency are left completely to the implementation of the concrete TestContext. Note, however, that this commit does not address any thread-safety or concurrency issues in the ContextLoader SPI or its implementations. Issue: SPR-5863