Prior to this commit, a developer may have accidentally annotated a
JUnit Jupiter test method or lifecycle method with @Autowired, and that
would have potentially resulted in an exception that was hard to
understand. This is because the Spring container considers any
@Autowired method to be a "configuration method" when autowiring the
test class instance. Consequently, such an @Autowired method would be
invoked twice: once by Spring while attempting to autowire the test
instance and another time by JUnit Jupiter when invoking the test or
lifecycle method. The autowiring invocation of the method often leads
to an exception, either because Spring cannot satisfy a dependency (such
as JUnit Jupiter's TestInfo) or because the body of the method fails due
to test setup that has not yet been invoked.
This commit introduces validation for @Autowired test and lifecycle
methods in the SpringExtension that will throw an IllegalStateException
if any @Autowired method in a test class is also annotated with any of
the following JUnit Jupiter annotations.
- @Test
- @TestFactory
- @TestTemplate
- @RepeatedTest
- @ParameterizedTest
- @BeforeAll
- @AfterAll
- @BeforeEach
- @AfterEach
Closes gh-25966
b019f30a15