Remove JUnit 4 @RunWith annotations that do not require an @ExtendsWith replacement

org.openrewrite.java.testing.junit5.RemoveObsoleteRunners

Some JUnit 4 @RunWith annotations do not require replacement with an equivalent JUnit Jupiter @ExtendsWith annotation. This can be used to remove those runners that either do not have a JUnit Jupiter equivalent or do not require a replacement as part of JUnit 4 to 5 migration.

Recipe source

GitHub, Issue Tracker, Maven Central

• groupId: org.openrewrite.recipe

• artifactId: rewrite-testing-frameworks

• version: 2.7.0

Options

Type	Name	Description	Example
List	obsoleteRunners	The fully qualified class names of the JUnit 4 runners to be removed.	org.junit.runners.JUnit4

Usage

This recipe has required configuration parameters. Recipes with required configuration parameters cannot be activated directly. To activate this recipe you must create a new recipe which fills in the required parameters. In your rewrite.yml create a new recipe with a unique name. For example: com.yourorg.RemoveObsoleteRunnersExample. Here's how you can define and customize such a recipe within your rewrite.yml:

rewrite.yml

---
type: specs.openrewrite.org/v1beta/recipe
name: com.yourorg.RemoveObsoleteRunnersExample
displayName: Remove JUnit 4 `@RunWith` annotations that do not require an `@ExtendsWith` replacement example
recipeList:
  - org.openrewrite.java.testing.junit5.RemoveObsoleteRunners:
      obsoleteRunners: org.junit.runners.JUnit4

Now that com.yourorg.RemoveObsoleteRunnersExample has been defined activate it and take a dependency on org.openrewrite.recipe:rewrite-testing-frameworks:2.7.0 in your build file:

Gradle

1. Add the following to your build.gradle file:

build.gradle

plugins {
    id("org.openrewrite.rewrite") version("6.12.0")
}

rewrite {
    activeRecipe("com.yourorg.RemoveObsoleteRunnersExample")
}

repositories {
    mavenCentral()
}

dependencies {
    rewrite("org.openrewrite.recipe:rewrite-testing-frameworks:2.7.0")
}

2. Run gradle rewriteRun to run the recipe.

Maven

1. Add the following to your pom.xml file:

pom.xml

<project>
  <build>
    <plugins>
      <plugin>
        <groupId>org.openrewrite.maven</groupId>
        <artifactId>rewrite-maven-plugin</artifactId>
        <version>5.29.0</version>
        <configuration>
          <activeRecipes>
            <recipe>com.yourorg.RemoveObsoleteRunnersExample</recipe>
          </activeRecipes>
        </configuration>
        <dependencies>
          <dependency>
            <groupId>org.openrewrite.recipe</groupId>
            <artifactId>rewrite-testing-frameworks</artifactId>
            <version>2.7.0</version>
          </dependency>
        </dependencies>
      </plugin>
    </plugins>
  </build>
</project>

2. Run mvn rewrite:run to run the recipe.

Moderne CLI

You will need to have configured the Moderne CLI on your machine before you can run the following command.

shell

mod run . --recipe RemoveObsoleteRunnersExample

See how this recipe works across multiple open-source repositories

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Contributors

Tyler Van Gorder, Knut Wannheden, Sam Snyder, Jonathan Schneider, Michael Keppler, Aaron Gershman, Patrick Way