Fix test without relying on Gradle's --debug

junit-platform-reporting/src/testFixtures/java/org/junit/platform/reporting/testutil/FileUtils.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2015-2024 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.reporting.testutil;
+
+import java.io.IOException;
+import java.io.UncheckedIOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+public class FileUtils {
+
+	public static Path findPath(Path rootDir, String syntaxAndPattern) {
+		var matcher = rootDir.getFileSystem().getPathMatcher(syntaxAndPattern);
+		try (var files = Files.walk(rootDir)) {
+			return files.filter(matcher::matches).findFirst() //
+					.orElseThrow(() -> new AssertionError(
+						"Failed to find file matching '%s' in %s".formatted(syntaxAndPattern, rootDir)));
+		}
+		catch (IOException e) {
+			throw new UncheckedIOException(e);
+		}
+	}
+}

platform-tooling-support-tests/platform-tooling-support-tests.gradle.kts

@@ -71,6 +71,7 @@ dependencies {
 	}
 	testImplementation(libs.bundles.xmlunit)
 	testImplementation(testFixtures(projects.junitJupiterApi))
+	testImplementation(testFixtures(projects.junitPlatformReporting))
 
 	thirdPartyJars(libs.junit4)
 	thirdPartyJars(libs.assertj)

platform-tooling-support-tests/src/test/java/platform/tooling/support/tests/GradleMissingEngineTests.java

@@ -10,19 +10,19 @@
 
 package platform.tooling.support.tests;
 
+import static org.assertj.core.api.Assertions.assertThat;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
-import static org.junit.jupiter.api.Assertions.assertLinesMatch;
 import static platform.tooling.support.Helper.TOOL_TIMEOUT;
 
 import java.nio.file.Paths;
-import java.util.List;
 
 import de.sormuras.bartholdy.Tool;
 import de.sormuras.bartholdy.tool.GradleWrapper;
 
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.parallel.ResourceLock;
+import org.junit.platform.reporting.testutil.FileUtils;
 import org.opentest4j.TestAbortedException;
 
 import platform.tooling.support.Helper;
@@ -41,27 +41,26 @@ void gradle_wrapper() {
 	}
 
 	private void test(Tool gradle) {
-		var result = Request.builder() //
+		var request = Request.builder() //
 				.setProject(Projects.GRADLE_MISSING_ENGINE) //
 				.setTool(gradle) //
 				.addArguments("-Dmaven.repo=" + MavenRepo.dir()) //
 				.addArguments("build", "--no-daemon", "--stacktrace", "--no-build-cache", "--warning-mode=fail") //
 				.putEnvironment("JDK8", Helper.getJavaHome("8").orElseThrow(TestAbortedException::new).toString()) //
-				.setTimeout(TOOL_TIMEOUT).build() //
-				.run();
+				.setTimeout(TOOL_TIMEOUT) //
+				.build();
+
+		var result = request.run();
 
 		assertFalse(result.isTimedOut(), () -> "tool timed out: " + result);
 
 		assertEquals(1, result.getExitCode());
-		assertLinesMatch(List.of( //
-			">> HEAD >>", //
-			".+DEBUG.+Cannot create Launcher without at least one TestEngine.+", //
-			">> TAIL >>"), //
-			result.getOutputLines("out"));
-		assertLinesMatch(List.of( //
-			">> HEAD >>", //
-			".+ERROR.+FAILURE: Build failed with an exception.", //
-			">> TAIL >>"), //
-			result.getOutputLines("err"));
+		assertThat(result.getOutputLines("err")) //
+				.contains("FAILURE: Build failed with an exception.");
+
+		var htmlFile = FileUtils.findPath(Request.WORKSPACE.resolve(request.getWorkspace()),
+			"glob:**/build/reports/tests/test/classes/*.html");
+		assertThat(htmlFile).content() //
+				.contains("Cannot create Launcher without at least one TestEngine");
 	}
 }