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/*******************************************************************************
* Copyright (c) 2009, 2021 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.internal.analysis.filter;
import org.jacoco.core.internal.instr.InstrSupport;
import org.junit.Test;
import org.objectweb.asm.Label;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.tree.LabelNode;
import org.objectweb.asm.tree.MethodNode;
/**
* Unit tests for {@link SynchronizedFilter}.
*/
public class SynchronizedFilterTest extends FilterTestBase {
private final SynchronizedFilter filter = new SynchronizedFilter();
private final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, 0,
"name", "()V", null, null);
@Test
public void javac() {
final Label start = new Label();
final Label end = new Label();
final Label handler = new Label();
final Label handlerEnd = new Label();
m.visitTryCatchBlock(start, end, handler, null);
m.visitTryCatchBlock(handler, handlerEnd, handler, null);
m.visitVarInsn(Opcodes.ALOAD, 0);
m.visitFieldInsn(Opcodes.GETFIELD, "Fun", "lock", "Ljava/lang/Object;");
m.visitInsn(Opcodes.DUP);
m.visitVarInsn(Opcodes.ASTORE, 1);
m.visitInsn(Opcodes.MONITORENTER);
m.visitLabel(start);
m.visitInsn(Opcodes.NOP);
m.visitVarInsn(Opcodes.ALOAD, 1);
m.visitInsn(Opcodes.MONITOREXIT);
m.visitLabel(end);
final Label exit = new Label();
m.visitJumpInsn(Opcodes.GOTO, exit);
m.visitLabel(handler);
m.visitVarInsn(Opcodes.ASTORE, 2);
m.visitVarInsn(Opcodes.ALOAD, 1);
m.visitInsn(Opcodes.MONITOREXIT);
m.visitLabel(handlerEnd);
m.visitVarInsn(Opcodes.ALOAD, 2);
m.visitInsn(Opcodes.ATHROW);
m.visitLabel(exit);
m.visitInsn(Opcodes.RETURN);
filter.filter(m, context, output);
assertIgnored(new Range((LabelNode) handler.info,
((LabelNode) exit.info).getPrevious()));
}
/**
* <pre>
* try {
* ...
* } catch (Exception e) {
* ...
* } finally {
* ...
* }
* </pre>
*/
@Test
public void javacTryCatchFinally() {
final Label start = new Label();
final Label end = new Label();
final Label catchHandler = new Label();
final Label finallyHandler = new Label();
final Label catchHandlerEnd = new Label();
m.visitTryCatchBlock(start, end, catchHandler, "java/lang/Exception");
m.visitTryCatchBlock(start, end, finallyHandler, null);
m.visitTryCatchBlock(catchHandler, catchHandlerEnd, finallyHandler,
null);
m.visitLabel(start);
// body
m.visitInsn(Opcodes.NOP);
m.visitLabel(end);
// finally
m.visitInsn(Opcodes.NOP);
final Label exit = new Label();
m.visitJumpInsn(Opcodes.GOTO, exit);
m.visitLabel(catchHandler);
m.visitVarInsn(Opcodes.ASTORE, 1);
// catch
m.visitInsn(Opcodes.NOP);
m.visitLabel(catchHandlerEnd);
// finally
m.visitInsn(Opcodes.NOP);
m.visitJumpInsn(Opcodes.GOTO, exit);
m.visitLabel(finallyHandler);
m.visitVarInsn(Opcodes.ASTORE, 2);
// finally
m.visitInsn(Opcodes.NOP);
m.visitVarInsn(Opcodes.ALOAD, 2);
m.visitInsn(Opcodes.ATHROW);
m.visitLabel(exit);
m.visitInsn(Opcodes.RETURN);
filter.filter(m, context, output);
assertIgnored();
}
@Test
public void ecj() {
final Label start = new Label();
final Label end = new Label();
final Label handler = new Label();
final Label handlerEnd = new Label();
m.visitTryCatchBlock(start, end, handler, null);
m.visitTryCatchBlock(handler, handlerEnd, handler, null);
m.visitVarInsn(Opcodes.ALOAD, 0);
m.visitFieldInsn(Opcodes.GETFIELD, "Target", "lock",
"Ljava/lang/Object;");
m.visitInsn(Opcodes.DUP);
m.visitVarInsn(Opcodes.ASTORE, 1);
m.visitInsn(Opcodes.MONITORENTER);
m.visitLabel(start);
m.visitVarInsn(Opcodes.ALOAD, 0);
m.visitInsn(Opcodes.NOP);
m.visitVarInsn(Opcodes.ALOAD, 1);
m.visitInsn(Opcodes.MONITOREXIT);
m.visitLabel(end);
final Label exit = new Label();
m.visitJumpInsn(Opcodes.GOTO, exit);
m.visitLabel(handler);
m.visitVarInsn(Opcodes.ALOAD, 1);
m.visitInsn(Opcodes.MONITOREXIT);
m.visitLabel(handlerEnd);
m.visitInsn(Opcodes.ATHROW);
m.visitLabel(exit);
m.visitInsn(Opcodes.RETURN);
filter.filter(m, context, output);
assertIgnored(new Range((LabelNode) handler.info,
((LabelNode) exit.info).getPrevious()));
}
}
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