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/*******************************************************************************
* Copyright (c) 2009, 2018 Mountainminds GmbH & Co. KG and Contributors
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Marc R. Hoffmann - initial API and implementation
*
*******************************************************************************/
package org.jacoco.core.test.validation;
import static org.junit.Assert.assertEquals;
import static org.objectweb.asm.Opcodes.ACC_PUBLIC;
import static org.objectweb.asm.Opcodes.ACC_SUPER;
import static org.objectweb.asm.Opcodes.ALOAD;
import static org.objectweb.asm.Opcodes.INVOKESPECIAL;
import static org.objectweb.asm.Opcodes.RETURN;
import static org.objectweb.asm.Opcodes.V1_1;
import static org.objectweb.asm.Opcodes.V1_2;
import static org.objectweb.asm.Opcodes.V1_3;
import static org.objectweb.asm.Opcodes.V1_4;
import static org.objectweb.asm.Opcodes.V1_5;
import static org.objectweb.asm.Opcodes.V1_6;
import static org.objectweb.asm.Opcodes.V1_7;
import static org.objectweb.asm.Opcodes.V1_8;
import static org.objectweb.asm.Opcodes.V9;
import java.io.IOException;
import org.jacoco.core.instr.Instrumenter;
import org.jacoco.core.internal.instr.InstrSupport;
import org.jacoco.core.runtime.IRuntime;
import org.jacoco.core.runtime.SystemPropertiesRuntime;
import org.junit.Test;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.MethodVisitor;
/**
* Test class inserted stackmap frames for different class file versions.
*/
public class ClassFileVersionsTest {
@Test
public void test_1_1() throws IOException {
testVersion(V1_1, false);
}
@Test
public void test_1_2() throws IOException {
testVersion(V1_2, false);
}
@Test
public void test_1_3() throws IOException {
testVersion(V1_3, false);
}
@Test
public void test_1_4() throws IOException {
testVersion(V1_4, false);
}
@Test
public void test_1_5() throws IOException {
testVersion(V1_5, false);
}
@Test
public void test_1_6() throws IOException {
testVersion(V1_6, true);
}
@Test
public void test_1_7() throws IOException {
testVersion(V1_7, true);
}
@Test
public void test_1_8() throws IOException {
testVersion(V1_8, true);
}
@Test
public void test_1_9() throws IOException {
testVersion(V9, true);
}
private void testVersion(int version, boolean frames) throws IOException {
final byte[] original = createClass(version);
IRuntime runtime = new SystemPropertiesRuntime();
Instrumenter instrumenter = new Instrumenter(runtime);
byte[] instrumented = instrumenter.instrument(original, "TestTarget");
assertFrames(instrumented, frames);
}
private void assertFrames(byte[] source, boolean expected) {
final boolean[] hasFrames = new boolean[] { false };
new ClassReader(source)
.accept(new ClassVisitor(InstrSupport.ASM_API_VERSION) {
@Override
public MethodVisitor visitMethod(int access, String name,
String desc, String signature, String[] exceptions) {
return new MethodVisitor(InstrSupport.ASM_API_VERSION) {
@Override
public void visitFrame(int type, int nLocal,
Object[] local, int nStack, Object[] stack) {
hasFrames[0] = true;
}
};
}
}, 0);
assertEquals(Boolean.valueOf(expected), Boolean.valueOf(hasFrames[0]));
}
private byte[] createClass(int version) {
ClassWriter cw = new ClassWriter(0);
MethodVisitor mv;
cw.visit(version, ACC_PUBLIC + ACC_SUPER, "org/jacoco/test/Sample",
null, "java/lang/Object", null);
mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V",
false);
mv.visitInsn(RETURN);
mv.visitMaxs(1, 1);
mv.visitEnd();
cw.visitEnd();
return cw.toByteArray();
}
}
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