Migrate JUnit asserts to AssertJ
Recipe ID
org.openrewrite.java.testing.assertj.JUnitToAssertjArtifact
org.openrewrite.recipe:rewrite-testing-frameworksAssertJ provides a rich set of assertions, truly helpful error messages, improves test code readability. Converts assertions from org.junit.jupiter.api.Assertions to org.assertj.core.api.Assertions. Will convert JUnit 4 to JUnit Jupiter if necessary to match and modify assertions.
Usage
This recipe has no required configuration options. You’ll need the Moderne CLI configured before running the command below.
mod run . --recipe org.openrewrite.java.testing.assertj.JUnitToAssertjIf the recipe isn’t available locally, install it with:
mod config recipes jar install org.openrewrite.recipe:rewrite-testing-frameworks:3.43.0Definition
This recipe runs the following recipes in order.
- JUnit 5 best practices
org.openrewrite.java.testing.junit5.JUnit5BestPractices - JUnit
assertArrayEqualsto assertJorg.openrewrite.java.testing.assertj.JUnitAssertArrayEqualsToAssertThat - JUnit
assertEqualsto AssertJorg.openrewrite.java.testing.assertj.JUnitAssertEqualsToAssertThat - JUnit
assertFalseto AssertJorg.openrewrite.java.testing.assertj.JUnitAssertFalseToAssertThat - JUnit
assertNotEqualsto AssertJorg.openrewrite.java.testing.assertj.JUnitAssertNotEqualsToAssertThat - JUnit
assertNotNullto AssertJorg.openrewrite.java.testing.assertj.JUnitAssertNotNullToAssertThat - JUnit
assertNullto AssertJorg.openrewrite.java.testing.assertj.JUnitAssertNullToAssertThat - JUnit
assertSameto AssertJorg.openrewrite.java.testing.assertj.JUnitAssertSameToAssertThat - JUnit
assertTrueto AssertJorg.openrewrite.java.testing.assertj.JUnitAssertTrueToAssertThat - JUnit fail to AssertJ
org.openrewrite.java.testing.assertj.JUnitFailToAssertJFail - JUnit AssertThrows to AssertJ exceptionType
org.openrewrite.java.testing.assertj.JUnitAssertThrowsToAssertExceptionType - Convert try-catch-fail blocks to AssertJ's assertThatThrownBy
org.openrewrite.java.testing.assertj.JUnitTryFailToAssertThatThrownBy - JUnit
assertInstanceOfto AssertJorg.openrewrite.java.testing.assertj.JUnitAssertInstanceOfToAssertThat - Add Gradle or Maven dependency
org.openrewrite.java.dependencies.AddDependency - Refaster rules that replace JUnit APIs with AssertJ equivalents
tech.picnic.errorprone.refasterrules.JUnitToAssertJRulesRecipes
Data tables
Structured output this recipe can produce.
- Maven metadata failuresAttempts to resolve maven metadata that failed.
org.openrewrite.maven.table.MavenMetadataFailures - Source files that had resultsSource files that were modified by the recipe run.
org.openrewrite.table.SourcesFileResults - Source files that had search resultsSearch results that were found during the recipe run.
org.openrewrite.table.SearchResults - Source files that errored on a recipeThe details of all errors produced by a recipe run.
org.openrewrite.table.SourcesFileErrors - Recipe performanceStatistics used in analyzing the performance of recipes.
org.openrewrite.table.RecipeRunStats