Add JUnit 4 support to AddMockitoExtensionIfAnnotationsUsed#922
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Add JUnit 4 support to AddMockitoExtensionIfAnnotationsUsed#922
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When PowerMock's @RunWith(PowerMockRunner.class) is removed from JUnit 4 tests, mock fields annotated with @mock are never initialized. This adds @RunWith(MockitoJUnitRunner.class) for JUnit 4 tests using Mockito annotations, complementing the existing JUnit 5 @ExtendWith support.
timtebeek
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Feb 28, 2026
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Summary
Extends
AddMockitoExtensionIfAnnotationsUsedto handle JUnit 4 tests by adding@RunWith(MockitoJUnitRunner.class)when Mockito annotations (@Mock,@Captor,@Spy,@InjectMocks) are presentFixes the issue where PowerMock removal leaves JUnit 4
@Mockfields uninitialized because no runner replacement is addedSkips adding
@RunWithwhen any@RunWithannotation is already present (e.g.,SpringRunner,JUnit4)Closes https://github.com/moderneinc/customer-requests/issues/1932