Introduce internal RecordsArguments interface

Related issue: #4421

Author: marcphilipp

junit-jupiter-params/junit-jupiter-params.gradle.kts

@@ -3,6 +3,7 @@ plugins {
 	id("junitbuild.shadow-conventions")
 	id("junitbuild.jmh-conventions")
 	id("junitbuild.native-image-properties")
+	`java-test-fixtures`
 }
 
 description = "JUnit Jupiter Params"

junit-jupiter-params/src/testFixtures/java/org/junit/jupiter/params/provider/RecordArguments.java

@@ -0,0 +1,26 @@
+/*
+ * 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.jupiter.params.provider;
+
+import java.util.Arrays;
+
+import org.junit.platform.commons.support.ReflectionSupport;
+
+public interface RecordArguments extends Arguments {
+
+	@Override
+	default Object[] get() {
+		return Arrays.stream(getClass().getRecordComponents()) //
+				.map(component -> ReflectionSupport.invokeMethod(component.getAccessor(), this)) //
+				.toArray();
+	}
+
+}

platform-tests/platform-tests.gradle.kts

@@ -46,6 +46,7 @@ dependencies {
 	testImplementation(testFixtures(projects.junitPlatformLauncher))
 	testImplementation(projects.junitJupiterEngine)
 	testImplementation(testFixtures(projects.junitJupiterEngine))
+	testImplementation(testFixtures(projects.junitJupiterParams))
 	testImplementation(libs.apiguardian)
 	testImplementation(libs.classgraph)
 	testImplementation(libs.jfrunit) {

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

@@ -26,6 +26,7 @@
 
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.MethodSource;
+import org.junit.jupiter.params.provider.RecordArguments;
 import org.junit.platform.engine.DiscoveryIssue;
 import org.junit.platform.engine.DiscoveryIssue.Severity;
 import org.junit.platform.engine.DiscoverySelector;
@@ -44,14 +45,15 @@ class DiscoveryIssueCollectorTests {
 
 	@ParameterizedTest(name = "{0}")
 	@MethodSource("pairs")
-	void reportsFailedResolutionResultAsDiscoveryIssue(Pair pair) {
+	void reportsFailedResolutionResultAsDiscoveryIssue(DiscoverySelector selector, TestSource source) {
 		var collector = new DiscoveryIssueCollector(mock());
 		var failure = SelectorResolutionResult.failed(new RuntimeException("boom"));
-		collector.selectorProcessed(UniqueId.forEngine("dummy"), pair.selector, failure);
+		collector.selectorProcessed(UniqueId.forEngine("dummy"), selector, failure);
 
-		var expectedIssue = DiscoveryIssue.builder(Severity.ERROR, pair.selector + " resolution failed") //
+		var expectedIssue = DiscoveryIssue.builder(Severity.ERROR, selector + " resolution failed") //
 				.cause(failure.getThrowable()) //
-				.source(pair.source).build();
+				.source(source) //
+				.build();
 		assertThat(collector.toNotifier().getAllIssues()).containsExactly(expectedIssue);
 	}
 
@@ -80,6 +82,6 @@ public static Stream<Pair> pairs() {
 		);
 	}
 
-	record Pair(DiscoverySelector selector, TestSource source) {
+	record Pair(DiscoverySelector selector, TestSource source) implements RecordArguments {
 	}
 }