| /******************************************************************************* |
| * Copyright (c) 2009, 2017 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.After; |
| 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.commons.AnalyzerAdapter; |
| |
| /** |
| * Unit tests for {@link FrameSnapshot}. |
| */ |
| public class FrameSnapshotTest { |
| |
| private AnalyzerAdapter analyzer; |
| private IFrame frame; |
| |
| private MethodRecorder expected; |
| |
| private MethodVisitor expectedVisitor; |
| |
| @Before |
| public void setup() { |
| analyzer = new AnalyzerAdapter("Foo", 0, "doit", "()V", null); |
| expected = new MethodRecorder(); |
| expectedVisitor = expected.getVisitor(); |
| } |
| |
| @After |
| public void teardown() { |
| MethodRecorder actual = new MethodRecorder(); |
| frame.accept(actual.getVisitor()); |
| assertEquals(expected, actual); |
| } |
| |
| @Test |
| public void testNullAnalyzer() { |
| frame = FrameSnapshot.create(null, 0); |
| } |
| |
| @Test |
| public void testNoFrame() { |
| analyzer.visitJumpInsn(Opcodes.GOTO, new Label()); |
| frame = FrameSnapshot.create(analyzer, 0); |
| } |
| |
| @Test |
| public void testFrame() { |
| analyzer.visitInsn(Opcodes.ICONST_0); |
| frame = FrameSnapshot.create(analyzer, 0); |
| |
| expectedVisitor.visitFrame(Opcodes.F_FULL, 1, arr("Foo"), 1, |
| arr(Opcodes.INTEGER)); |
| } |
| |
| @Test |
| public void testReduce() { |
| analyzer.visitInsn(Opcodes.ICONST_0); |
| analyzer.visitInsn(Opcodes.LCONST_0); |
| analyzer.visitInsn(Opcodes.ICONST_0); |
| analyzer.visitInsn(Opcodes.DCONST_0); |
| frame = FrameSnapshot.create(analyzer, 0); |
| |
| final Object[] stack = arr(Opcodes.INTEGER, Opcodes.LONG, |
| Opcodes.INTEGER, Opcodes.DOUBLE); |
| expectedVisitor.visitFrame(Opcodes.F_FULL, 1, arr("Foo"), 4, stack); |
| } |
| |
| @Test |
| public void testPop() { |
| analyzer.visitInsn(Opcodes.ICONST_0); |
| analyzer.visitInsn(Opcodes.LCONST_0); |
| analyzer.visitInsn(Opcodes.ICONST_0); |
| analyzer.visitInsn(Opcodes.ICONST_0); |
| frame = FrameSnapshot.create(analyzer, 2); |
| |
| final Object[] stack = arr(Opcodes.INTEGER, Opcodes.LONG); |
| expectedVisitor.visitFrame(Opcodes.F_FULL, 1, arr("Foo"), 2, stack); |
| } |
| |
| private Object[] arr(Object... elements) { |
| return elements; |
| } |
| } |