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/*******************************************************************************
* 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.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.MethodNode;
/**
* Unit tests for {@link TryWithResourcesJavac11Filter}.
*/
public class TryWithResourcesJavac11FilterTest extends FilterTestBase {
private final TryWithResourcesJavac11Filter filter = new TryWithResourcesJavac11Filter();
private final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, 0,
"name", "()V", null, null);
/**
* <pre>
* try (r = new ...) {
* ...
* }
* </pre>
*/
@Test
public void without_null_check() {
final Range range1 = new Range();
final Range range2 = new Range();
final Label e = new Label();
final Label t = new Label();
final Label handler = new Label();
m.visitTryCatchBlock(handler, handler, handler, "java/lang/Throwable");
m.visitInsn(Opcodes.NOP);
m.visitVarInsn(Opcodes.ALOAD, 0);
range1.fromInclusive = m.instructions.getLast();
m.visitMethodInsn(Opcodes.INVOKEINTERFACE, "Resource", "close", "()V",
false);
m.visitJumpInsn(Opcodes.GOTO, e);
range1.toInclusive = m.instructions.getLast();
m.visitLabel(handler);
range2.fromInclusive = m.instructions.getLast();
m.visitVarInsn(Opcodes.ASTORE, 1);
m.visitVarInsn(Opcodes.ALOAD, 0);
m.visitMethodInsn(Opcodes.INVOKEINTERFACE, "Resource", "close", "()V",
false);
m.visitJumpInsn(Opcodes.GOTO, t);
m.visitVarInsn(Opcodes.ASTORE, 2);
m.visitVarInsn(Opcodes.ALOAD, 1);
m.visitVarInsn(Opcodes.ALOAD, 2);
m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Throwable",
"addSuppressed", "(Ljava/lang/Throwable;)V", false);
m.visitLabel(t);
m.visitVarInsn(Opcodes.ALOAD, 1);
m.visitInsn(Opcodes.ATHROW);
range2.toInclusive = m.instructions.getLast();
m.visitLabel(e);
filter.filter(m, context, output);
assertIgnored(range1, range2);
}
/**
* <pre>
* try (r = open()) {
* ...
* }
* </pre>
*/
@Test
public void with_null_check() {
final Range range1 = new Range();
final Range range2 = new Range();
final Label e = new Label();
final Label t = new Label();
final Label handler = new Label();
m.visitTryCatchBlock(handler, handler, handler, "java/lang/Throwable");
m.visitInsn(Opcodes.NOP);
m.visitVarInsn(Opcodes.ALOAD, 0);
range1.fromInclusive = m.instructions.getLast();
m.visitJumpInsn(Opcodes.IFNULL, e);
m.visitVarInsn(Opcodes.ALOAD, 0);
m.visitMethodInsn(Opcodes.INVOKEINTERFACE, "Resource", "close", "()V",
false);
m.visitJumpInsn(Opcodes.GOTO, e);
range1.toInclusive = m.instructions.getLast();
m.visitLabel(handler);
range2.fromInclusive = m.instructions.getLast();
m.visitVarInsn(Opcodes.ASTORE, 1);
m.visitVarInsn(Opcodes.ALOAD, 0);
m.visitJumpInsn(Opcodes.IFNULL, t);
m.visitVarInsn(Opcodes.ALOAD, 0);
m.visitMethodInsn(Opcodes.INVOKEINTERFACE, "Resource", "close", "()V",
false);
m.visitJumpInsn(Opcodes.GOTO, t);
m.visitVarInsn(Opcodes.ASTORE, 2);
m.visitVarInsn(Opcodes.ALOAD, 1);
m.visitVarInsn(Opcodes.ALOAD, 2);
m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Throwable",
"addSuppressed", "(Ljava/lang/Throwable;)V", false);
m.visitLabel(t);
m.visitVarInsn(Opcodes.ALOAD, 1);
m.visitInsn(Opcodes.ATHROW);
range2.toInclusive = m.instructions.getLast();
m.visitLabel(e);
filter.filter(m, context, output);
assertIgnored(range1, range2);
}
}
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