Add validation test for Serializable lambda in Kotlin (#1699)

jacoco · Dec 19, 2024 · 70a82d9 · 70a82d9
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diff --git a/...ation.kotlin/src/org/jacoco/core/test/validation/kotlin/KotlinLambdaSerializableTest.java b/...ation.kotlin/src/org/jacoco/core/test/validation/kotlin/KotlinLambdaSerializableTest.java
@@ -0,0 +1,52 @@
+/*******************************************************************************
+ * Copyright (c) 2009, 2024 Mountainminds GmbH & Co. KG and Contributors
+ * This program and the accompanying materials are made available under
+ * the terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *    Evgeny Mandrikov - initial API and implementation
+ *
+ *******************************************************************************/
+package org.jacoco.core.test.validation.kotlin;
+
+import static org.junit.Assert.assertEquals;
+
+import java.lang.reflect.Method;
+import java.util.Collections;
+import java.util.HashSet;
+
+import org.jacoco.core.test.validation.ValidationTestBase;
+import org.jacoco.core.test.validation.kotlin.targets.KotlinLambdaSerializableTarget;
+import org.junit.Test;
+
+/**
+ * Test of code coverage in {@link KotlinLambdaSerializableTarget}.
+ */
+public class KotlinLambdaSerializableTest extends ValidationTestBase {
+
+	public KotlinLambdaSerializableTest() {
+		super(KotlinLambdaSerializableTarget.class);
+	}
+
+	@Test
+	public void compiler_should_generate_synthetic_deserializeLambda() {
+		final HashSet<String> names = new HashSet<String>();
+		for (final Method method : KotlinLambdaSerializableTarget.class
+				.getDeclaredMethods()) {
+			if (method.isSynthetic()) {
+				names.add(method.getName());
+			}
+		}
+
+		assertEquals(Collections.singleton("$deserializeLambda$"), names);
+	}
+
+	@Test
+	public void test_method_count() {
+		assertMethodCount(/* main + lambda */ 2);
+	}
+
+}
diff --git a/...tlin/src/org/jacoco/core/test/validation/kotlin/targets/KotlinLambdaSerializableTarget.kt b/...tlin/src/org/jacoco/core/test/validation/kotlin/targets/KotlinLambdaSerializableTarget.kt
@@ -0,0 +1,32 @@
+/*******************************************************************************
+ * Copyright (c) 2009, 2024 Mountainminds GmbH & Co. KG and Contributors
+ * This program and the accompanying materials are made available under
+ * the terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *    Evgeny Mandrikov - initial API and implementation
+ *
+ *******************************************************************************/
+package org.jacoco.core.test.validation.kotlin.targets
+
+import org.jacoco.core.test.validation.targets.Stubs.execSerializable
+import org.jacoco.core.test.validation.targets.Stubs.nop
+
+/**
+ * Test target with [java.io.Serializable] lambda.
+ */
+object KotlinLambdaSerializableTarget {
+
+    @JvmStatic
+    fun main(args: Array<String>) {
+
+        execSerializable {
+            nop() // assertFullyCovered()
+        }
+
+    }
+
+}