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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.internal.flow;
import static org.junit.Assert.assertEquals;
import org.jacoco.core.instr.MethodRecorder;
import org.junit.Before;
import org.junit.Test;
import org.objectweb.asm.Label;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.tree.MethodNode;
/**
* Unit tests for {@link MethodSanitizer}.
*/
public class MethodSanitizerTest {
private MethodNode actual;
private MethodNode expected;
private MethodVisitor sanitizer;
@Before
public void setup() {
actual = new MethodNode(0, "test", "()V", null, null);
expected = new MethodNode(0, "test", "()V", null, null);
sanitizer = new MethodSanitizer(actual, 0, "test", "()V", null, null);
}
@Test
public void testLocalVariablePositive() {
Label l1 = new Label();
Label l2 = new Label();
sanitizer.visitCode();
sanitizer.visitLabel(l1);
sanitizer.visitInsn(Opcodes.RETURN);
sanitizer.visitLabel(l2);
sanitizer.visitLocalVariable("x", "I", null, l1, l2, 0);
sanitizer.visitMaxs(0, 0);
sanitizer.visitEnd();
Label m1 = new Label();
Label m2 = new Label();
expected.visitLabel(m1);
expected.visitInsn(Opcodes.RETURN);
expected.visitLabel(m2);
expected.visitLocalVariable("x", "I", null, m1, m2, 0);
expected.visitMaxs(0, 0);
expected.visitEnd();
assertOutput();
}
@Test
public void testLocalVariableNegative1() {
Label l1 = new Label();
Label l2 = new Label();
sanitizer.visitCode();
sanitizer.visitInsn(Opcodes.RETURN);
sanitizer.visitLabel(l2);
sanitizer.visitLocalVariable("x", "I", null, l1, l2, 0);
sanitizer.visitMaxs(0, 0);
sanitizer.visitEnd();
Label m2 = new Label();
expected.visitInsn(Opcodes.RETURN);
expected.visitLabel(m2);
expected.visitMaxs(0, 0);
expected.visitEnd();
assertOutput();
}
@Test
public void testLocalVariableNegative2() {
Label l1 = new Label();
Label l2 = new Label();
sanitizer.visitCode();
sanitizer.visitLabel(l1);
sanitizer.visitInsn(Opcodes.RETURN);
sanitizer.visitLocalVariable("x", "I", null, l1, l2, 0);
sanitizer.visitMaxs(0, 0);
sanitizer.visitEnd();
Label m1 = new Label();
expected.visitLabel(m1);
expected.visitInsn(Opcodes.RETURN);
expected.visitMaxs(0, 0);
expected.visitEnd();
assertOutput();
}
@Test
public void testLineNumberPositive() {
Label l1 = new Label();
sanitizer.visitCode();
sanitizer.visitLabel(l1);
sanitizer.visitLineNumber(15, l1);
sanitizer.visitInsn(Opcodes.RETURN);
sanitizer.visitMaxs(0, 0);
sanitizer.visitEnd();
Label m1 = new Label();
expected.visitLabel(m1);
expected.visitLineNumber(15, m1);
expected.visitInsn(Opcodes.RETURN);
expected.visitMaxs(0, 0);
expected.visitEnd();
assertOutput();
}
@Test
public void testLineNumberNegative() {
Label l1 = new Label();
sanitizer.visitCode();
sanitizer.visitLineNumber(15, l1);
sanitizer.visitInsn(Opcodes.RETURN);
sanitizer.visitMaxs(0, 0);
sanitizer.visitEnd();
expected.visitInsn(Opcodes.RETURN);
expected.visitMaxs(0, 0);
expected.visitEnd();
assertOutput();
}
private void assertOutput() {
assertEquals(dump(expected), dump(actual));
}
private MethodRecorder dump(MethodNode node) {
MethodRecorder rec = new MethodRecorder();
node.accept(rec.getVisitor());
return rec;
}
}
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