/*******************************************************************************
* 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.analysis;
import static org.jacoco.core.analysis.ICoverageNode.ElementType.GROUP;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.util.Comparator;
import org.jacoco.core.analysis.ICoverageNode.CounterEntity;
import org.jacoco.core.internal.analysis.CounterImpl;
import org.junit.Test;
/**
* Unit tests for {@link CounterComparator}.
*/
public class CounterComparatorTest {
@Test
public void testTotalItemsComparator() {
final Comparator<ICounter> cmp = CounterComparator.TOTALITEMS;
assertCmpLess(cmp, 19, 5, 19, 6);
assertCmpEquals(cmp, 20, 5, 19, 6);
assertCmpGreater(cmp, 21, 5, 19, 6);
}
@Test
public void testCoveredItemsComparator() {
final Comparator<ICounter> cmp = CounterComparator.COVEREDITEMS;
assertCmpLess(cmp, 73, 7, 42, 8);
assertCmpEquals(cmp, 42, 8, 82, 8);
assertCmpGreater(cmp, 21, 9, 32, 8);
}
@Test
public void testMissedItemsComparator() {
final Comparator<ICounter> cmp = CounterComparator.MISSEDITEMS;
assertCmpLess(cmp, 10, 40, 11, 80);
assertCmpEquals(cmp, 10, 40, 10, 80);
assertCmpGreater(cmp, 11, 39, 10, 80);
}
@Test
public void testCoveredRatioComparator() {
final Comparator<ICounter> cmp = CounterComparator.COVEREDRATIO;
assertCmpLess(cmp, 25, 25, 44, 46);
assertCmpEquals(cmp, 40, 10, 64, 16);
assertCmpGreater(cmp, 25, 25, 46, 44);
}
@Test
public void testMissedRatioComparator() {
final Comparator<ICounter> cmp = CounterComparator.MISSEDRATIO;
assertCmpLess(cmp, 25, 25, 46, 44);
assertCmpEquals(cmp, 40, 10, 64, 16);
assertCmpGreater(cmp, 25, 25, 44, 46);
}
@Test
public void testReverseComparator() {
final Comparator<ICounter> cmp = CounterComparator.TOTALITEMS.reverse();
assertCmpGreater(cmp, 19, 5, 19, 6);
assertCmpEquals(cmp, 20, 5, 19, 6);
assertCmpLess(cmp, 21, 5, 19, 6);
}
@Test
public void testReverseReverseComparator() {
final Comparator<ICounter> cmp = CounterComparator.TOTALITEMS.reverse()
.reverse();
assertCmpGreater(cmp, 21, 5, 19, 6);
assertCmpEquals(cmp, 20, 5, 19, 6);
assertCmpLess(cmp, 19, 5, 19, 6);
}
@Test
public void testNodeComparator1() {
ICoverageNode d1 = new MockNode(18);
ICoverageNode d2 = new MockNode(15);
final Comparator<ICoverageNode> cmp = CounterComparator.TOTALITEMS
.on(CounterEntity.INSTRUCTION);
assertTrue(cmp.compare(d1, d2) > 0);
}
@Test
public void testNodeComparator2() {
ICoverageNode d1 = new MockNode(18);
ICoverageNode d2 = new MockNode(15);
final Comparator<ICoverageNode> cmp = CounterComparator.TOTALITEMS
.on(CounterEntity.LINE);
assertEquals(0, cmp.compare(d1, d2), 0.0);
}
private void assertCmpEquals(Comparator<ICounter> cmp, int missed1,
int covered1, int missed2, int covered2) {
assertEquals(0,
cmp.compare(ctr(missed1, covered1), ctr(missed2, covered2)),
0.0);
}
private void assertCmpLess(Comparator<ICounter> cmp, int missed1,
int covered1, int missed2, int covered2) {
assertTrue(cmp.compare(ctr(missed1, covered1), ctr(missed2, covered2)) < 0);
}
private void assertCmpGreater(Comparator<ICounter> cmp, int missed1,
int covered1, int missed2, int covered2) {
assertTrue(cmp.compare(ctr(missed1, covered1), ctr(missed2, covered2)) > 0);
}
private CounterImpl ctr(int missed, int covered) {
return CounterImpl.getInstance(missed, covered);
}
private static final class MockNode extends CoverageNodeImpl {
MockNode(int total) {
super(GROUP, "mock");
instructionCounter = CounterImpl.getInstance(total, 0);
}
}
}