Support JUnit 6 plug-in test launches

ui/org.eclipse.pde.junit.runtime.tests/META-INF/MANIFEST.MF

@@ -19,6 +19,7 @@ Require-Bundle: org.eclipse.core.runtime;bundle-version="3.29.0",
  org.eclipse.pde.ui.tests;bundle-version="3.11.500",
  org.eclipse.jdt.junit4.runtime;bundle-version="[1.3.0,2.0.0)",
  org.eclipse.jdt.junit5.runtime;bundle-version="[1.1.0,2.0.0)",
+ org.eclipse.jdt.junit6.runtime;bundle-version="[1.0.0,2.0.0)",
  org.eclipse.pde.junit.runtime;bundle-version="[3.8.0,4.0.0)"
 Import-Package: org.assertj.core.api;version="3.14.0",
  org.junit,

ui/org.eclipse.pde.junit.runtime.tests/src/org/eclipse/pde/junit/runtime/tests/JUnit6SuiteExecutionTest.java

@@ -0,0 +1,96 @@
+/*******************************************************************************
+ *  Copyright (c) 2025 Julian Honnen
+ *
+ *  This program and the accompanying materials
+ *  are made available under the terms of the Eclipse Public License 2.0
+ *  which accompanies this distribution, and is available at
+ *  https://www.eclipse.org/legal/epl-2.0/
+ *
+ *  SPDX-License-Identifier: EPL-2.0
+ *
+ *  Contributors:
+ *     Julian Honnen <[email protected]> - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.pde.junit.runtime.tests;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.eclipse.pde.junit.runtime.tests.JUnitExecutionTest.findType;
+
+import java.util.StringJoiner;
+
+import org.eclipse.core.runtime.Platform;
+import org.eclipse.jdt.core.IJavaProject;
+import org.eclipse.jdt.internal.junit.model.TestElement;
+import org.eclipse.jdt.junit.model.ITestElement;
+import org.eclipse.jdt.junit.model.ITestElementContainer;
+import org.eclipse.jdt.junit.model.ITestRunSession;
+import org.eclipse.pde.ui.tests.util.ProjectUtils;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.ClassRule;
+import org.junit.Test;
+import org.junit.rules.TestRule;
+
+public class JUnit6SuiteExecutionTest {
+
+	@ClassRule
+	public static final TestRule CLEAR_WORKSPACE = ProjectUtils.DELETE_ALL_WORKSPACE_PROJECTS_BEFORE_AND_AFTER;
+
+	private static IJavaProject project;
+
+	@BeforeClass
+	public static void setupProjects() throws Exception {
+		Assert.assertNotNull("junit-platform-suite-engine bundle missing", Platform.getBundle("junit-platform-suite-engine"));
+		Assert.assertNotNull("org.eclipse.jdt.junit6.runtime bundle missing", Platform.getBundle("org.eclipse.jdt.junit6.runtime"));
+
+		JUnitExecutionTest.setupProjects();
+		project = JUnitExecutionTest.getJProject("verification.tests.junit6.suite");
+	}
+
+	@Test
+	public void executeSuite() throws Exception {
+		ITestRunSession session = TestExecutionUtil.runTest(findType(project, "TestSuite"));
+		JUnitExecutionTest.assertSuccessful(session);
+		Assert.assertEquals("""
+				verification.tests.junit6.suite.TestSuite
+				  JUnit Jupiter
+				    verification.tests.junit6.Test1
+				      test1(verification.tests.junit6.Test1)
+				      test2(verification.tests.junit6.Test1)
+				    verification.tests.junit6.Test2
+				      test(verification.tests.junit6.Test2)
+				""".strip(), toString(session).strip());
+	}
+
+	@Test
+	public void executePackage() throws Exception {
+		ITestRunSession session = TestExecutionUtil.runTest(findType(project, "TestSuite").getPackageFragment());
+		JUnitExecutionTest.assertSuccessful(session);
+		assertThat(session.getChildren()).isNotEmpty();
+	}
+
+	@Test
+	public void executeProject() throws Exception {
+		ITestRunSession session = TestExecutionUtil.runTest(project);
+		JUnitExecutionTest.assertSuccessful(session);
+		assertThat(session.getChildren()).isNotEmpty();
+	}
+
+	private static String toString(ITestRunSession session) {
+		StringJoiner sb = new StringJoiner("\n");
+		for (ITestElement element : session.getChildren()) {
+			append(sb, element, 0);
+		}
+		return sb.toString();
+	}
+
+	private static void append(StringJoiner sb, ITestElement element, int indent) {
+		sb.add("  ".repeat(indent) + ((TestElement) element).getTestName());
+		if (element instanceof ITestElementContainer container) {
+			for (ITestElement child : container.getChildren()) {
+				append(sb, child, indent + 1);
+			}
+		}
+	}
+
+}

ui/org.eclipse.pde.junit.runtime.tests/src/org/eclipse/pde/junit/runtime/tests/JUnitExecutionTest.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- *  Copyright (c) 2019 Julian Honnen
+ *  Copyright (c) 2019, 2025 Julian Honnen
  *
  *  This program and the accompanying materials
  *  are made available under the terms of the Eclipse Public License 2.0
@@ -77,7 +77,10 @@ public static void setupProjects() throws Exception {
 
 	@Parameters(name = "{0}")
 	public static Object[][] parameters() {
-		return new Object[][] { { "JUnit5", getJProject("verification.tests.junit5") },
+		return new Object[][] {
+				{ "JUnit6", getJProject("verification.tests.junit6") },
+				{ "JUnit6 Fragment", getJProject("verification.tests.junit6.fragment") },
+				{ "JUnit5", getJProject("verification.tests.junit5") },
 				{ "JUnit5 Fragment", getJProject("verification.tests.junit5.fragment") },
 				{ "JUnit4", getJProject("verification.tests.junit4") },
 				{ "JUnit4 Fragment", getJProject("verification.tests.junit4.fragment") },

ui/org.eclipse.pde.junit.runtime.tests/src/org/eclipse/pde/junit/runtime/tests/JUnitRuntimeTests.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- *  Copyright (c) 2019 Julian Honnen
+ *  Copyright (c) 2019, 2025 Julian Honnen
  *
  *  This program and the accompanying materials
  *  are made available under the terms of the Eclipse Public License 2.0
@@ -18,7 +18,7 @@
 import org.junit.runners.Suite.SuiteClasses;
 
 @RunWith(Suite.class)
-@SuiteClasses({ JUnitExecutionTest.class, JUnit5SuiteExecutionTest.class })
+@SuiteClasses({ JUnitExecutionTest.class, JUnit5SuiteExecutionTest.class, JUnit6SuiteExecutionTest.class })
 public class JUnitRuntimeTests {
 
 }

ui/org.eclipse.pde.junit.runtime.tests/test-bundles/verification.tests.junit6.fragment/.classpath

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-17"/>
+	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
+	<classpathentry kind="src" path="src">
+		<attributes>
+			<attribute name="test" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

ui/org.eclipse.pde.junit.runtime.tests/test-bundles/verification.tests.junit6.fragment/.project

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>verification.tests.junit6.fragment</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ManifestBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.SchemaBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.pde.PluginNature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

ui/org.eclipse.pde.junit.runtime.tests/test-bundles/verification.tests.junit6.fragment/.settings/org.eclipse.jdt.core.prefs

@@ -0,0 +1,7 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.8

ui/org.eclipse.pde.junit.runtime.tests/test-bundles/verification.tests.junit6.fragment/META-INF/MANIFEST.MF

@@ -0,0 +1,9 @@
+Manifest-Version: 1.0
+Bundle-ManifestVersion: 2
+Bundle-Name: Fragment
+Bundle-SymbolicName: verification.tests.junit6.fragment
+Bundle-Version: 1.0.0.qualifier
+Fragment-Host: verification.tests.junit5;bundle-version="1.0.0.qualifier"
+Automatic-Module-Name: verification.tests.junit6.fragment
+Bundle-RequiredExecutionEnvironment: JavaSE-17
+Export-Package: verification.tests.junit6.fragment

ui/org.eclipse.pde.junit.runtime.tests/test-bundles/verification.tests.junit6.fragment/build.properties

@@ -0,0 +1,4 @@
+source.. = src/
+output.. = bin/
+bin.includes = META-INF/,\
+               .

ui/org.eclipse.pde.junit.runtime.tests/test-bundles/verification.tests.junit6.fragment/src/verification/tests/junit6/fragment/Test1.java

@@ -0,0 +1,30 @@
+/*******************************************************************************
+ *  Copyright (c) 2025 Julian Honnen
+ *
+ *  This program and the accompanying materials
+ *  are made available under the terms of the Eclipse Public License 2.0
+ *  which accompanies this distribution, and is available at
+ *  https://www.eclipse.org/legal/epl-2.0/
+ *
+ *  SPDX-License-Identifier: EPL-2.0
+ *
+ *  Contributors:
+ *     Julian Honnen <[email protected]> - initial API and implementation
+ *******************************************************************************/
+package verification.tests.junit6.fragment;
+
+import org.junit.jupiter.api.Test;
+
+class Test1 {
+
+	@Test
+	void test1() {
+
+	}
+
+	@Test
+	void test2() {
+
+	}
+
+}

ui/org.eclipse.pde.junit.runtime.tests/test-bundles/verification.tests.junit6.fragment/src/verification/tests/junit6/fragment/Test2.java

@@ -0,0 +1,25 @@
+/*******************************************************************************
+ *  Copyright (c) 2025 Julian Honnen
+ *
+ *  This program and the accompanying materials
+ *  are made available under the terms of the Eclipse Public License 2.0
+ *  which accompanies this distribution, and is available at
+ *  https://www.eclipse.org/legal/epl-2.0/
+ *
+ *  SPDX-License-Identifier: EPL-2.0
+ *
+ *  Contributors:
+ *     Julian Honnen <[email protected]> - initial API and implementation
+ *******************************************************************************/
+package verification.tests.junit6.fragment;
+
+import org.junit.jupiter.api.Test;
+
+class Test2 {
+
+	@Test
+	void test() {
+
+	}
+
+}

ui/org.eclipse.pde.junit.runtime.tests/test-bundles/verification.tests.junit6.suite/.classpath

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-17"/>
+	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
+	<classpathentry kind="src" path="src">
+		<attributes>
+			<attribute name="test" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

ui/org.eclipse.pde.junit.runtime.tests/test-bundles/verification.tests.junit6.suite/.project

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>verification.tests.junit6.suite</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ManifestBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.SchemaBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.pde.PluginNature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

ui/org.eclipse.pde.junit.runtime.tests/test-bundles/verification.tests.junit6.suite/.settings/org.eclipse.jdt.core.prefs

@@ -0,0 +1,7 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.8

ui/org.eclipse.pde.junit.runtime.tests/test-bundles/verification.tests.junit6.suite/META-INF/MANIFEST.MF

@@ -0,0 +1,10 @@
+Manifest-Version: 1.0
+Bundle-ManifestVersion: 2
+Bundle-Name: Tests
+Bundle-SymbolicName: verification.tests.junit6.suite
+Bundle-Version: 1.0.0.qualifier
+Automatic-Module-Name: verification.tests
+Bundle-RequiredExecutionEnvironment: JavaSE-17
+Require-Bundle: junit-platform-suite-api;bundle-version="[6.0.0,7.0.0)",
+ verification.tests.junit6
+Export-Package: verification.tests.junit6.suite

ui/org.eclipse.pde.junit.runtime.tests/test-bundles/verification.tests.junit6.suite/build.properties

@@ -0,0 +1,4 @@
+source.. = src/
+output.. = bin/
+bin.includes = META-INF/,\
+               .

ui/org.eclipse.pde.junit.runtime.tests/test-bundles/verification.tests.junit6.suite/src/verification/tests/junit6/suite/TestSuite.java

@@ -0,0 +1,23 @@
+/*******************************************************************************
+ *  Copyright (c) 2025 Julian Honnen
+ *
+ *  This program and the accompanying materials
+ *  are made available under the terms of the Eclipse Public License 2.0
+ *  which accompanies this distribution, and is available at
+ *  https://www.eclipse.org/legal/epl-2.0/
+ *
+ *  SPDX-License-Identifier: EPL-2.0
+ *
+ *  Contributors:
+ *     Julian Honnen <[email protected]> - initial API and implementation
+ *******************************************************************************/
+package verification.tests.junit6.suite;
+
+import org.junit.platform.suite.api.SelectClasses;
+import org.junit.platform.suite.api.Suite;
+
+@Suite
+@SelectClasses({ verification.tests.junit6.Test1.class, verification.tests.junit6.Test2.class })
+class TestSuite {
+
+}

ui/org.eclipse.pde.junit.runtime.tests/test-bundles/verification.tests.junit6/.classpath

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-17"/>
+	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
+	<classpathentry kind="src" path="src">
+		<attributes>
+			<attribute name="test" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

ui/org.eclipse.pde.junit.runtime.tests/test-bundles/verification.tests.junit6/.project

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>verification.tests.junit6</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ManifestBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.SchemaBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.pde.PluginNature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

ui/org.eclipse.pde.junit.runtime.tests/test-bundles/verification.tests.junit6/.settings/org.eclipse.jdt.core.prefs

@@ -0,0 +1,7 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.8