Disable ClasspathAlignmentCheckerTests.allRootPackagesAreChecked() in Eclipse

This commit also extracts the common runningInEclipse() method into a
new IdeUtils test fixture.

Author: sbrannen

junit-platform-commons/src/testFixtures/java/org/junit/platform/commons/test/IdeUtils.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2015-2025 the original author or authors.
+ *
+ * All rights reserved. This program and the accompanying materials are
+ * made available under the terms of the Eclipse Public License v2.0 which
+ * accompanies this distribution and is available at
+ *
+ * https://www.eclipse.org/legal/epl-v20.html
+ */
+
+package org.junit.platform.commons.test;
+
+/**
+ * Collection of test utilities for IDEs.
+ */
+public class IdeUtils {
+
+	/**
+	 * Determine if the current code is running in the Eclipse IDE.
+	 * <p>Copied from {@code org.springframework.core.testfixture.ide.IdeUtils}.
+	 */
+	public static boolean runningInEclipse() {
+		return StackWalker.getInstance().walk(
+			stream -> stream.anyMatch(stackFrame -> stackFrame.getClassName().startsWith("org.eclipse.jdt")));
+	}
+
+}

junit-vintage-engine/junit-vintage-engine.gradle.kts

@@ -24,6 +24,7 @@ dependencies {
 	testImplementation(projects.junitPlatformLauncher)
 	testImplementation(projects.junitPlatformSuiteEngine)
 	testImplementation(projects.junitPlatformTestkit)
+	testImplementation(testFixtures(projects.junitPlatformCommons))
 	testImplementation(testFixtures(projects.junitJupiterApi))
 	testImplementation(testFixtures(projects.junitPlatformLauncher))
 	testImplementation(testFixtures(projects.junitPlatformReporting))

junit-vintage-engine/src/test/java/org/junit/vintage/engine/VintageTestEngineExecutionTests.java

@@ -865,7 +865,7 @@ void executesJUnit4TestCaseWithRunnerWithDuplicateChangingChildDescriptions() {
 	}
 
 	@Test
-	@DisabledIf("runningInEclipse")
+	@DisabledIf("org.junit.platform.commons.test.IdeUtils#runningInEclipse()")
 	void executesUnrolledSpockFeatureMethod() {
 		// Load Groovy class via reflection to avoid compilation errors in Eclipse IDE.
 		String testClassName = "org.junit.vintage.engine.samples.spock.SpockTestCaseWithUnrolledAndRegularFeatureMethods";
@@ -888,7 +888,7 @@ void executesUnrolledSpockFeatureMethod() {
 	}
 
 	@Test
-	@DisabledIf("runningInEclipse")
+	@DisabledIf("org.junit.platform.commons.test.IdeUtils#runningInEclipse()")
 	void executesRegularSpockFeatureMethod() {
 		// Load Groovy class via reflection to avoid compilation errors in Eclipse IDE.
 		String testClassName = "org.junit.vintage.engine.samples.spock.SpockTestCaseWithUnrolledAndRegularFeatureMethods";
@@ -957,12 +957,4 @@ private static boolean atLeastJUnit4_13() {
 		return JUnit4VersionCheck.parseVersion(Version.id()).compareTo(new BigDecimal("4.13")) >= 0;
 	}
 
-	/**
-	 * Determine if the current code is running in the Eclipse IDE.
-	 */
-	static boolean runningInEclipse() {
-		return StackWalker.getInstance().walk(
-			stream -> stream.anyMatch(stackFrame -> stackFrame.getClassName().startsWith("org.eclipse.jdt")));
-	}
-
 }

jupiter-tests/src/test/java/org/junit/jupiter/engine/extension/TimeoutInvocationFactoryTests.java

@@ -35,7 +35,9 @@
 // Mockito cannot mock this class: class org.junit.jupiter.engine.execution.NamespaceAwareStore.
 // You are seeing this disclaimer because Mockito is configured to create inlined mocks.
 // Byte Buddy could not instrument all classes within the mock's type hierarchy.
-@DisabledIf(value = "runningInEclipse", disabledReason = "Mockito cannot create a spy for NamespaceAwareStore using the inline MockMaker in Eclipse IDE")
+@DisabledIf(//
+		value = "org.junit.platform.commons.test.IdeUtils#runningInEclipse()", //
+		disabledReason = "Mockito cannot create a spy for NamespaceAwareStore using the inline MockMaker in Eclipse IDE")
 @DisplayName("TimeoutInvocationFactory")
 @ExtendWith(MockitoExtension.class)
 class TimeoutInvocationFactoryTests {
@@ -100,13 +102,4 @@ void shouldCreateTimeoutInvocationForSeparateThreadTimeoutThreadMode() {
 		assertThat(invocation).isInstanceOf(SeparateThreadTimeoutInvocation.class);
 	}
 
-	/**
-	 * Determine if the current code is running in the Eclipse IDE.
-	 * <p>Copied from {@code org.springframework.core.testfixture.ide.IdeUtils}.
-	 */
-	static boolean runningInEclipse() {
-		return StackWalker.getInstance().walk(
-			stream -> stream.anyMatch(stackFrame -> stackFrame.getClassName().startsWith("org.eclipse.jdt")));
-	}
-
 }

platform-tests/src/test/java/org/junit/platform/launcher/core/ClasspathAlignmentCheckerTests.java

@@ -25,6 +25,7 @@
 
 import org.jspecify.annotations.Nullable;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.condition.DisabledIf;
 
 class ClasspathAlignmentCheckerTests {
 
@@ -59,6 +60,7 @@ void wrapsLinkageErrorForUnalignedClasspath() {
 	}
 
 	@Test
+	@DisabledIf("org.junit.platform.commons.test.IdeUtils#runningInEclipse()")
 	void allRootPackagesAreChecked() {
 		var allowedFileNames = Pattern.compile("junit-(?:platform|jupiter|vintage)-.+[\\d.]+(?:-SNAPSHOT)?\\.jar");
 		var classGraph = new ClassGraph() //
@@ -83,4 +85,5 @@ void allRootPackagesAreChecked() {
 					.allMatch(name -> foundPackages.stream().anyMatch(it -> it.startsWith(name)));
 		}
 	}
+
 }