Fix JUnit4to5Migration for classes that extend org.junit.Assert#996
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Thanks @motlin .. I'd marked this as draft to signify it should not be merged as is just yet. Instead we'll look to fix the recipe before merging. |
When a class extends `org.junit.Assert`, unqualified inherited assertion calls otherwise shadow the Jupiter static imports and keep resolving to the JUnit 4 overloads, producing code that fails to compile.
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…rom 3.35.2 to 3.37.0 [skip ci] Bumps [org.openrewrite.recipe:rewrite-testing-frameworks](https://github.com/openrewrite/rewrite-testing-frameworks) from 3.35.2 to 3.37.0. Release notes *Sourced from [org.openrewrite.recipe:rewrite-testing-frameworks's releases](https://github.com/openrewrite/rewrite-testing-frameworks/releases).* > 3.37.0 > ------ > > What's Changed > -------------- > > * Reuse `MockedStatic` for consecutive stubbings of the same class by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-testing-frameworks#1005](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/1005) > * Add RemoveJupiterMigrationSupport recipe by [`@sullis`](https://github.com/sullis) in [openrewrite/rewrite-testing-frameworks#1006](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/1006) > * Regenerate recipes.csv by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-testing-frameworks#1007](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/1007) > * fix: retain doNothing() stubs inside lambda bodies to prevent uncompilable code by [`@darrencilia`](https://github.com/darrencilia) in [openrewrite/rewrite-testing-frameworks#1009](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/1009) > * Migrate deprecated AssertionsForClassTypes/InterfaceTypes to Assertions by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-testing-frameworks#1010](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/1010) > * Add direct mockwebserver3 dep when only inherited from parent pom by [`@steve-aom-elliott`](https://github.com/steve-aom-elliott) in [openrewrite/rewrite-testing-frameworks#1011](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/1011) > * Match MockWebServer.shutdown() against pre-rename type by [`@steve-aom-elliott`](https://github.com/steve-aom-elliott) in [openrewrite/rewrite-testing-frameworks#1012](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/1012) > > New Contributors > ---------------- > > * [`@darrencilia`](https://github.com/darrencilia) made their first contribution in [openrewrite/rewrite-testing-frameworks#1009](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/1009) > > **Full Changelog**: <openrewrite/rewrite-testing-frameworks@v3.36.0...v3.37.0> > > 3.36.0 > ------ > > What's Changed > -------------- > > * Skip wrapper-primitive in `UseAssertSame`; rewrite via `AssertTrueComparisonToAssertEquals` by [`@motlin`](https://github.com/motlin) in [openrewrite/rewrite-testing-frameworks#995](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/995) > * Add unit test for JUnit6BestPractices by [`@sullis`](https://github.com/sullis) in [openrewrite/rewrite-testing-frameworks#994](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/994) > * Cleanup junit vintage engine by [`@sullis`](https://github.com/sullis) in [openrewrite/rewrite-testing-frameworks#993](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/993) > * OpenRewrite recipe best practices by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-testing-frameworks#997](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/997) > * Fix `JUnit4to5Migration` for classes that extend `org.junit.Assert` by [`@motlin`](https://github.com/motlin) in [openrewrite/rewrite-testing-frameworks#996](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/996) > * Preserve newlines when converting `@CsvSource(textBlock = ...)` to `@ValueSource` by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-testing-frameworks#998](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/998) > * Fix `EnclosedToNested` failing with "Expected to find enclosing JavaSourceFile" by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-testing-frameworks#1001](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/1001) > * Fix `assertEquals` delta misinterpreted as message in AssertJ conversion by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-testing-frameworks#1000](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/1000) > * Add JUnit 6.1 migration recipes by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-testing-frameworks#1002](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/1002) > * Handle Kotlin sources in `MockitoWhenOnStaticToMockStatic` by [`@MBoegers`](https://github.com/MBoegers) in [openrewrite/rewrite-testing-frameworks#1003](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/1003) > > **Full Changelog**: <openrewrite/rewrite-testing-frameworks@v3.35.3...v3.36.0> > > v3.35.3 > ------- > > What's Changed > -------------- > > * OpenRewrite [v8.81.6](https://github.com/openrewrite/rewrite/releases/tag/v8.81.6) > * Cleanup Mockito AutoCloseable fields by [`@sullis`](https://github.com/sullis) in [openrewrite/rewrite-testing-frameworks#977](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/977) > * Preserve mockStatic when returned from helper methods by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-testing-frameworks#979](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/979) > * Upgrade junit-bom to 6.x in JUnit 5 to 6 migration by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-testing-frameworks#978](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/978) > * Tighten PowerMockitoMockStaticToMockito precondition to actual PowerMockito usage by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-testing-frameworks#981](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/981) > * Fix AssertTrueInstanceofToAssertInstanceOf static import by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-testing-frameworks#984](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/984) > * Fix `ClassCastException` for `@PrepareForTest(fullyQualifiedNames = "...")` by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-testing-frameworks#983](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/983) > * Preserve `doNothing()` stubbings using `ArgumentCaptor.capture()` by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-testing-frameworks#988](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/988) > * Document strictness implication of `RemoveInitMocksIfRunnersSpecified` by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-testing-frameworks#990](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/990) > * Support `textBlock` attribute in `CsvSourceToValueSource` by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-testing-frameworks#989](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/989) > * Skip primitive comparisons in `UseAssertSame` by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-testing-frameworks#992](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/pull/992) > > **Full Changelog**: <openrewrite/rewrite-testing-frameworks@v3.35.2...v3.35.3> Commits * [`5b719c2`](openrewrite/rewrite-testing-frameworks@5b719c2) Extract documentation examples from tests * [`1ca6223`](openrewrite/rewrite-testing-frameworks@1ca6223) Match MockWebServer.shutdown() against pre-rename type ([#1012](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/issues/1012)) * [`9479988`](openrewrite/rewrite-testing-frameworks@9479988) Add direct mockwebserver3 dep when only old mockwebserver dep inherited from ... * [`4d31fbb`](openrewrite/rewrite-testing-frameworks@4d31fbb) Add recipe to migrate AssertionsForClassTypes/InterfaceTypes to Assertions (#... * [`7cbff2a`](openrewrite/rewrite-testing-frameworks@7cbff2a) OpenRewrite recipe best practices * [`86f2308`](openrewrite/rewrite-testing-frameworks@86f2308) fix: retain doNothing() stubs inside lambda bodies to prevent uncompilable co... * [`45d2528`](openrewrite/rewrite-testing-frameworks@45d2528) Update Gradle wrapper 9.5.1 * [`a632e17`](openrewrite/rewrite-testing-frameworks@a632e17) Regenerate recipes.csv ([#1007](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/issues/1007)) * [`0b192ca`](openrewrite/rewrite-testing-frameworks@0b192ca) Add RemoveJupiterMigrationSupport recipe ([#1006](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/issues/1006)) * [`f3f61a6`](openrewrite/rewrite-testing-frameworks@f3f61a6) Reuse `MockedStatic` for consecutive stubbings of the same class ([#1005](https://redirect.github.com/openrewrite/rewrite-testing-frameworks/issues/1005)) * Additional commits viewable in [compare view](openrewrite/rewrite-testing-frameworks@v3.35.2...v3.37.0)
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The JUnit 4 to 5 migration produces broken code when a class
extends org.junit.Assertand uses unqualified inherited assertion methods. TheJUnit4to5Migrationaggregator:assertEquals/assertTrue,import org.junit.Assertandextends Assertunchanged.Because inherited methods shadow static imports in Java, the reordered call
assertEquals(1, 1, "expected message")resolves against JUnit 4'sAssert.assertEquals, which has no(int, int, String)overload, so the migrated code will not compile.I'm not sure what the proper fix should be, so I'm just submitting a test that demonstrates the broken output. The
afterblock reflects what the recipes actually produce today, so the test passes and CI stays green. Happy to help with the fix, but I don't have a clear idea of what it ought to be.