(WIP) Add validation test for JEP 433: Pattern Matching for switch

jacoco · Feb 15, 2023 · b4ab2d2 · b4ab2d2
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diff --git a/org.jacoco.core.test.validation.java20/pom.xml b/org.jacoco.core.test.validation.java20/pom.xml
@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+   Copyright (c) 2009, 2022 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
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>org.jacoco</groupId>
+    <artifactId>org.jacoco.core.test.validation</artifactId>
+    <version>0.8.9-SNAPSHOT</version>
+    <relativePath>../org.jacoco.core.test.validation</relativePath>
+  </parent>
+
+  <artifactId>org.jacoco.core.test.validation.java20</artifactId>
+
+  <name>JaCoCo :: Test :: Core :: Validation Java 20</name>
+
+  <properties>
+    <bytecode.version>20</bytecode.version>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>${project.groupId}</groupId>
+      <artifactId>org.jacoco.core.test</artifactId>
+      <version>${project.version}</version>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <configuration>
+          <compilerArgs>
+            <arg>--enable-preview</arg>
+          </compilerArgs>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-surefire-plugin</artifactId>
+        <configuration>
+          <argLine>--enable-preview</argLine>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+</project>
diff --git a/...lidation.java20/src/org/jacoco/core/test/validation/java20/SwitchPatternMatchingTest.java b/...lidation.java20/src/org/jacoco/core/test/validation/java20/SwitchPatternMatchingTest.java
@@ -0,0 +1,27 @@
+/*******************************************************************************
+ * Copyright (c) 2009, 2022 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.java20;
+
+import org.jacoco.core.test.validation.ValidationTestBase;
+import org.jacoco.core.test.validation.java20.targets.SwitchPatternMatchingTarget;
+
+/**
+ * Test of code coverage in {@link SwitchPatternMatchingTarget}.
+ */
+public class SwitchPatternMatchingTest extends ValidationTestBase {
+
+	public SwitchPatternMatchingTest() {
+		super(SwitchPatternMatchingTarget.class);
+	}
+
+}
diff --git a/...ava20/src/org/jacoco/core/test/validation/java20/targets/SwitchPatternMatchingTarget.java b/...ava20/src/org/jacoco/core/test/validation/java20/targets/SwitchPatternMatchingTarget.java
@@ -0,0 +1,39 @@
+/*******************************************************************************
+ * Copyright (c) 2009, 2022 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.java20.targets;
+
+import static org.jacoco.core.test.validation.targets.Stubs.nop;
+
+/**
+ * This target exercises pattern matching for switch
+ * (<a href="https://openjdk.org/jeps/433">JEP 433</a>).
+ */
+public class SwitchPatternMatchingTarget {
+
+	private static void example(Object o) {
+		switch (o) { // assertFullyCovered(1, 2)
+		case String s when s.length() == 0 -> // assertFullyCovered(0, 2)
+			nop(s); // assertFullyCovered()
+		case String s -> // assertFullyCovered()
+			nop(s); // assertFullyCovered()
+		default -> // assertEmpty()
+			nop(); // assertNotCovered()
+		}
+	}
+
+	public static void main(String[] args) {
+		example("");
+		example("a");
+	}
+
+}
diff --git a/org.jacoco.core.test.validation/pom.xml b/org.jacoco.core.test.validation/pom.xml
@@ -419,6 +419,7 @@
         <module>../org.jacoco.core.test.validation.java8</module>
         <module>../org.jacoco.core.test.validation.java14</module>
         <module>../org.jacoco.core.test.validation.java16</module>
+        <module>../org.jacoco.core.test.validation.java20</module>
         <!-- Groovy 3.0.13 does not support Java 20
         <module>../org.jacoco.core.test.validation.groovy</module>
         -->
@@ -449,6 +450,7 @@
         <module>../org.jacoco.core.test.validation.java8</module>
         <module>../org.jacoco.core.test.validation.java14</module>
         <module>../org.jacoco.core.test.validation.java16</module>
+        <module>../org.jacoco.core.test.validation.java20</module>
         <!-- Groovy 3.0.13 does not support Java 21
         <module>../org.jacoco.core.test.validation.groovy</module>
         -->