/*******************************************************************************
* Copyright (c) 2009, 2014 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 java.util.Arrays;
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;
import org.objectweb.asm.util.Printer;
/**
* Unit tests for {@link MethodProbesAdapter}.
*/
public class MethodProbesAdapterTest implements IProbeIdGenerator {
private Label label;
private int id;
private MethodRecorder expected, actual;
private MethodProbesVisitor expectedVisitor;
private MethodVisitor adapter;
private IFrame frame;
private static class TraceAdapter extends MethodProbesVisitor {
private final Printer printer;
TraceAdapter(MethodRecorder recorder) {
super(recorder.getVisitor());
printer = recorder.getPrinter();
}
@Override
public void visitProbe(int probeId) {
rec("visitProbe", Integer.valueOf(probeId));
}
@Override
public void visitInsnWithProbe(int opcode, int probeId) {
rec("visitInsnWithProbe", Integer.valueOf(opcode),
Integer.valueOf(probeId));
}
@Override
public void visitJumpInsnWithProbe(int opcode, Label label,
int probeId, IFrame frame) {
rec("visitJumpInsnWithProbe", Integer.valueOf(opcode), label,
Integer.valueOf(probeId));
frame.accept(this);
}
@Override
public void visitTableSwitchInsnWithProbes(int min, int max,
Label dflt, Label[] labels, IFrame frame) {
rec("visitTableSwitchInsnWithProbes", Integer.valueOf(min),
Integer.valueOf(max), dflt, labels);
frame.accept(this);
}
@Override
public void visitLookupSwitchInsnWithProbes(Label dflt, int[] keys,
Label[] labels, IFrame frame) {
rec("visitLookupSwitchInsnWithProbes", dflt, keys, labels);
frame.accept(this);
}
private void rec(String name, Object... args) {
printer.text.add(name + Arrays.asList(args));
}
}
@Before
public void setup() {
label = new Label();
id = 1000;
expected = new MethodRecorder();
expectedVisitor = new TraceAdapter(expected);
actual = new MethodRecorder();
MethodProbesVisitor actualVisitor = new TraceAdapter(actual);
MethodProbesAdapter probesAdapter = new MethodProbesAdapter(
actualVisitor, this);
final AnalyzerAdapter analyzer = new AnalyzerAdapter("Foo", 0, "doit",
"()V", probesAdapter);
probesAdapter.setAnalyzer(analyzer);
adapter = analyzer;
frame = new IFrame() {
public void accept(MethodVisitor mv) {
}
};
}
@After
public void verify() {
assertEquals(expected, actual);
}
@Test
public void testVisitProbe1() {
LabelInfo.setTarget(label);
LabelInfo.setSuccessor(label);
adapter.visitLabel(label);
expectedVisitor.visitProbe(1000);
expectedVisitor.visitLabel(label);
}
@Test
public void testVisitProbe2() {
LabelInfo.setTarget(label);
LabelInfo.setTarget(label);
adapter.visitLabel(label);
expectedVisitor.visitLabel(label);
}
@Test
public void testVisitProbe3() {
adapter.visitLabel(label);
expectedVisitor.visitLabel(label);
}
@Test
public void testVisitInsn1() {
adapter.visitInsn(Opcodes.RETURN);
expectedVisitor.visitInsnWithProbe(Opcodes.RETURN, 1000);
}
@Test
public void testVisitInsn2() {
adapter.visitInsn(Opcodes.ICONST_0);
adapter.visitInsn(Opcodes.ICONST_0);
adapter.visitInsn(Opcodes.IADD);
expectedVisitor.visitInsn(Opcodes.ICONST_0);
expectedVisitor.visitInsn(Opcodes.ICONST_0);
expectedVisitor.visitInsn(Opcodes.IADD);
}
@Test
public void testVisitJumpInsn1() {
LabelInfo.setTarget(label);
LabelInfo.setTarget(label);
adapter.visitJumpInsn(Opcodes.GOTO, label);
expectedVisitor
.visitJumpInsnWithProbe(Opcodes.GOTO, label, 1000, frame);
expectedVisitor.visitFrame(Opcodes.F_FULL, 1, new Object[] { "Foo" },
0, null);
}
@Test
public void testVisitJumpInsn2() {
LabelInfo.setTarget(label);
LabelInfo.setTarget(label);
adapter.visitInsn(Opcodes.ICONST_0);
adapter.visitJumpInsn(Opcodes.IFLT, label);
expectedVisitor.visitInsn(Opcodes.ICONST_0);
expectedVisitor
.visitJumpInsnWithProbe(Opcodes.IFLT, label, 1000, frame);
expectedVisitor.visitFrame(Opcodes.F_FULL, 1, new Object[] { "Foo" },
0, null);
}
@Test
public void testVisitJumpInsn3() {
adapter.visitInsn(Opcodes.ICONST_0);
adapter.visitJumpInsn(Opcodes.IFLT, label);
expectedVisitor.visitInsn(Opcodes.ICONST_0);
expectedVisitor.visitJumpInsn(Opcodes.IFLT, label);
}
@Test
public void testVisitJumpInsn4() {
LabelInfo.setTarget(label);
LabelInfo.setTarget(label);
adapter.visitInsn(Opcodes.ICONST_0);
adapter.visitInsn(Opcodes.ICONST_0);
adapter.visitJumpInsn(Opcodes.IF_ICMPEQ, label);
expectedVisitor.visitInsn(Opcodes.ICONST_0);
expectedVisitor.visitInsn(Opcodes.ICONST_0);
expectedVisitor.visitJumpInsnWithProbe(Opcodes.IF_ICMPEQ, label, 1000,
frame);
expectedVisitor.visitFrame(Opcodes.F_FULL, 1, new Object[] { "Foo" },
0, null);
}
@Test
public void testVisitLookupSwitchInsn1() {
LabelInfo.setTarget(label);
LabelInfo.setTarget(label);
final int[] keys = new int[] { 0, 1 };
final Label[] labels = new Label[] { label, label };
adapter.visitInsn(Opcodes.ICONST_0);
adapter.visitLookupSwitchInsn(label, keys, labels);
expectedVisitor.visitInsn(Opcodes.ICONST_0);
expectedVisitor.visitLookupSwitchInsnWithProbes(label, keys, labels,
frame);
expectedVisitor.visitFrame(Opcodes.F_FULL, 1, new Object[] { "Foo" },
0, null);
assertEquals(1000, LabelInfo.getProbeId(label));
}
@Test
public void testVisitLookupSwitchInsn2() {
Label label2 = new Label();
LabelInfo.setTarget(label2);
LabelInfo.setTarget(label2);
final int[] keys = new int[] { 0, 1 };
final Label[] labels = new Label[] { label2, label };
adapter.visitInsn(Opcodes.ICONST_0);
adapter.visitLookupSwitchInsn(label, keys, labels);
expectedVisitor.visitInsn(Opcodes.ICONST_0);
expectedVisitor.visitLookupSwitchInsnWithProbes(label, keys, labels,
frame);
expectedVisitor.visitFrame(Opcodes.F_FULL, 1, new Object[] { "Foo" },
0, null);
assertEquals(LabelInfo.NO_PROBE, LabelInfo.getProbeId(label));
assertEquals(1000, LabelInfo.getProbeId(label2));
}
@Test
public void testVisitLookupSwitchInsn3() {
final int[] keys = new int[] { 0, 1 };
final Label[] labels = new Label[] { label, label };
adapter.visitInsn(Opcodes.ICONST_0);
adapter.visitLookupSwitchInsn(label, keys, labels);
expectedVisitor.visitInsn(Opcodes.ICONST_0);
expectedVisitor.visitLookupSwitchInsn(label, keys, labels);
}
@Test
public void testVisitTableSwitchInsn1() {
LabelInfo.setTarget(label);
LabelInfo.setTarget(label);
final Label[] labels = new Label[] { label, label };
adapter.visitInsn(Opcodes.ICONST_0);
adapter.visitTableSwitchInsn(0, 1, label, labels);
expectedVisitor.visitInsn(Opcodes.ICONST_0);
expectedVisitor.visitTableSwitchInsnWithProbes(0, 1, label, labels,
frame);
expectedVisitor.visitFrame(Opcodes.F_FULL, 1, new Object[] { "Foo" },
0, null);
assertEquals(1000, LabelInfo.getProbeId(label));
}
@Test
public void testVisitTableSwitchInsn2() {
Label label2 = new Label();
LabelInfo.setTarget(label2);
LabelInfo.setTarget(label2);
final Label[] labels = new Label[] { label2, label };
adapter.visitInsn(Opcodes.ICONST_0);
adapter.visitTableSwitchInsn(0, 1, label, labels);
expectedVisitor.visitInsn(Opcodes.ICONST_0);
expectedVisitor.visitTableSwitchInsnWithProbes(0, 1, label, labels,
frame);
expectedVisitor.visitFrame(Opcodes.F_FULL, 1, new Object[] { "Foo" },
0, null);
assertEquals(LabelInfo.NO_PROBE, LabelInfo.getProbeId(label));
assertEquals(1000, LabelInfo.getProbeId(label2));
}
@Test
public void testVisitTableSwitchInsn3() {
final Label[] labels = new Label[] { label, label };
adapter.visitInsn(Opcodes.ICONST_0);
adapter.visitTableSwitchInsn(0, 1, label, labels);
expectedVisitor.visitInsn(Opcodes.ICONST_0);
expectedVisitor.visitTableSwitchInsn(0, 1, label, labels);
}
// === IProbeIdGenerator ===
public int nextId() {
return id++;
}
}