Add the first few Java 19 tests

For now, only the "pattern matching for switch" tests from previews 1
and 2 were adjusted to work in preview 3, because guarded patterns were
replaced by 'when' clauses in 'switch' blocks. Therefore, existing test
classes did not compile anymore and had to be replaced by syntactically
upgraded versions with content merged from preview 1 and 2 classes.

Signed-off-by: Alexander Kriegisch <Alexander@Kriegisch.name>

5 files changed, 237 insertions, 0 deletions

diff --git a/tests/src/test/java/org/aspectj/systemtest/ajc1919/Ajc1919TestsJava.java b/tests/src/test/java/org/aspectj/systemtest/ajc1919/Ajc1919TestsJava.java
new file mode 100644
index 000000000..5f471490d
--- /dev/null
+++ b/tests/src/test/java/org/aspectj/systemtest/ajc1919/Ajc1919TestsJava.java
@@ -0,0 +1,32 @@
+/*******************************************************************************
+ * Copyright (c) 2022 Contributors
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.txt
+ *******************************************************************************/
+package org.aspectj.systemtest.ajc1919;
+
+import junit.framework.Test;
+import org.aspectj.testing.XMLBasedAjcTestCase;
+import org.aspectj.testing.XMLBasedAjcTestCaseForJava19OrLater;
+
+/**
+ * @author Alexander Kriegisch
+ */
+public class Ajc1919TestsJava extends XMLBasedAjcTestCaseForJava19OrLater {
+
+  public void testDummyJava19() {
+    //runTest("dummy Java 19");
+  }
+
+  public static Test suite() {
+    return XMLBasedAjcTestCase.loadSuite(Ajc1919TestsJava.class);
+  }
+
+  @Override
+  protected java.net.URL getSpecFile() {
+    return getClassResource("ajc1919.xml");
+  }
+
+}
diff --git a/tests/src/test/java/org/aspectj/systemtest/ajc1919/AllTestsAspectJ1919.java b/tests/src/test/java/org/aspectj/systemtest/ajc1919/AllTestsAspectJ1919.java
new file mode 100644
index 000000000..da1a81f97
--- /dev/null
+++ b/tests/src/test/java/org/aspectj/systemtest/ajc1919/AllTestsAspectJ1919.java
@@ -0,0 +1,33 @@
+/*******************************************************************************
+ * Copyright (c) 2022 Contributors
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.txt
+ *******************************************************************************/
+package org.aspectj.systemtest.ajc1919;
+
+import junit.framework.Test;
+import junit.framework.TestSuite;
+import org.aspectj.util.LangUtil;
+
+/**
+ * @author Alexander Kriegisch
+ */
+public class AllTestsAspectJ1919 {
+
+	public static Test suite() {
+		TestSuite suite = new TestSuite("AspectJ 1.9.19 tests");
+		suite.addTest(Bugs1919Tests.suite());
+		if (LangUtil.is19VMOrGreater()) {
+			suite.addTest(SanityTestsJava19.suite());
+			suite.addTest(Ajc1919TestsJava.suite());
+		}
+		// Do not run tests using a previous compiler's preview features anymore. They would all fail.
+		// TODO: Comment out the following block when upgrading JDT Core to Java 20
+		if (LangUtil.is19VMOrGreater() && !LangUtil.is20VMOrGreater()) {
+			suite.addTest(Java19PreviewFeaturesTests.suite());
+		}
+		return suite;
+	}
+}
diff --git a/tests/src/test/java/org/aspectj/systemtest/ajc1919/Bugs1919Tests.java b/tests/src/test/java/org/aspectj/systemtest/ajc1919/Bugs1919Tests.java
new file mode 100644
index 000000000..38441267e
--- /dev/null
+++ b/tests/src/test/java/org/aspectj/systemtest/ajc1919/Bugs1919Tests.java
@@ -0,0 +1,31 @@
+/*******************************************************************************
+ * Copyright (c) 2022 Contributors
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.txt
+ *******************************************************************************/
+package org.aspectj.systemtest.ajc1919;
+
+import junit.framework.Test;
+import org.aspectj.testing.XMLBasedAjcTestCase;
+
+/**
+ * @author Alexander Kriegisch
+ */
+public class Bugs1919Tests extends XMLBasedAjcTestCase {
+
+  public void testDummyBug() {
+    //runTest("dummy Java 19 bug");
+  }
+
+  public static Test suite() {
+    return XMLBasedAjcTestCase.loadSuite(Bugs1919Tests.class);
+  }
+
+  @Override
+  protected java.net.URL getSpecFile() {
+    return getClassResource("ajc1919.xml");
+  }
+
+}
diff --git a/tests/src/test/java/org/aspectj/systemtest/ajc1919/Java19PreviewFeaturesTests.java b/tests/src/test/java/org/aspectj/systemtest/ajc1919/Java19PreviewFeaturesTests.java
new file mode 100644
index 000000000..39f9019f4
--- /dev/null
+++ b/tests/src/test/java/org/aspectj/systemtest/ajc1919/Java19PreviewFeaturesTests.java
@@ -0,0 +1,54 @@
+/*******************************************************************************
+ * Copyright (c) 2022 Contributors
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.txt
+ *******************************************************************************/
+package org.aspectj.systemtest.ajc1919;
+
+import junit.framework.Test;
+import org.aspectj.apache.bcel.Constants;
+import org.aspectj.testing.XMLBasedAjcTestCase;
+import org.aspectj.testing.XMLBasedAjcTestCaseForJava19Only;
+
+/**
+ * @author Alexander Kriegisch
+ */
+public class Java19PreviewFeaturesTests extends XMLBasedAjcTestCaseForJava19Only {
+
+  public void testSwitchPatternMatchingPreview3Java() {
+    runTest("switch pattern matching preview 3 java");
+    checkVersion("SwitchPatternPreview3OK", Constants.MAJOR_19, Constants.PREVIEW_MINOR_VERSION);
+  }
+
+  public void testSwitchPatternMatchingPreview3Aspect() {
+    runTest("switch pattern matching preview 3 aspect");
+    checkVersion("SwitchPatternPreview3Aspect", Constants.MAJOR_19, Constants.PREVIEW_MINOR_VERSION);
+    checkVersion("Application", Constants.MAJOR_19, Constants.PREVIEW_MINOR_VERSION);
+    checkVersion("Shape", Constants.MAJOR_19, Constants.PREVIEW_MINOR_VERSION);
+    checkVersion("S", Constants.MAJOR_19, Constants.PREVIEW_MINOR_VERSION);
+  }
+
+  public void testSwitchPatternMatchingCaseLabelDominatedByPrecedingError() {
+    runTest("switch pattern matching error");
+  }
+
+  public void testSwitchPatternMatchingPreview3Error1() {
+    runTest("switch pattern matching preview 3 error 1");
+  }
+
+  public void testSwitchPatternMatchingPreview3Error2() {
+    runTest("switch pattern matching preview 3 error 2");
+  }
+
+  public static Test suite() {
+    return XMLBasedAjcTestCase.loadSuite(Java19PreviewFeaturesTests.class);
+  }
+
+  @Override
+  protected java.net.URL getSpecFile() {
+    return getClassResource("ajc1919.xml");
+  }
+
+}
diff --git a/tests/src/test/java/org/aspectj/systemtest/ajc1919/SanityTestsJava19.java b/tests/src/test/java/org/aspectj/systemtest/ajc1919/SanityTestsJava19.java
new file mode 100644
index 000000000..fa2abafe5
--- /dev/null
+++ b/tests/src/test/java/org/aspectj/systemtest/ajc1919/SanityTestsJava19.java
@@ -0,0 +1,87 @@
+/*******************************************************************************
+ * Copyright (c) 2022 Contributors
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.txt
+ *******************************************************************************/
+package org.aspectj.systemtest.ajc1919;
+
+import junit.framework.Test;
+import org.aspectj.testing.XMLBasedAjcTestCase;
+import org.aspectj.testing.XMLBasedAjcTestCaseForJava19OrLater;
+
+/*
+ * Some very trivial tests that help verify things are OK.
+ * These are a copy of the earlier Sanity Tests created for 1.6 but these supply the -19 option
+ * to check code generation and modification with that version specified.
+ *
+ * @author Alexander Kriegisch
+ */
+public class SanityTestsJava19 extends XMLBasedAjcTestCaseForJava19OrLater {
+
+	public static final int bytecode_version_for_JDK_level = 63;
+
+	// Incredibly trivial test programs that check the compiler works at all (these are easy-ish to debug)
+	public void testSimpleJava_A() {
+		runTest("simple - a");
+	}
+
+	public void testSimpleJava_B() {
+		runTest("simple - b");
+	}
+
+	public void testSimpleCode_C() {
+		runTest("simple - c");
+	}
+
+	public void testSimpleCode_D() {
+		runTest("simple - d");
+	}
+
+	public void testSimpleCode_E() {
+		runTest("simple - e");
+	}
+
+	public void testSimpleCode_F() {
+		runTest("simple - f");
+	}
+
+	public void testSimpleCode_G() {
+		runTest("simple - g");
+	}
+
+	public void testSimpleCode_H() {
+		runTest("simple - h", true);
+	}
+
+	public void testSimpleCode_I() {
+		runTest("simple - i");
+	}
+
+	public void testVersionCorrect1() {
+		runTest("simple - j");
+		checkVersion("A", bytecode_version_for_JDK_level, 0);
+	}
+
+	public void testVersionCorrect2() {
+		runTest("simple - k");
+		checkVersion("A", bytecode_version_for_JDK_level, 0);
+	}
+
+	public void testVersionCorrect4() {
+		runTest("simple - m");
+		// Must be 49.0 when -1.5 is specified
+		checkVersion("A", 49, 0);
+	}
+
+	public static Test suite() {
+		return XMLBasedAjcTestCase.loadSuite(SanityTestsJava19.class);
+	}
+
+	@Override
+	protected java.net.URL getSpecFile() {
+		return getClassResource("sanity-tests-19.xml");
+	}
+
+}