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/*******************************************************************************
* Copyright (c) 2011 Oracle. 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:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.common.utility.tests.internal;
import java.io.Serializable;
import java.math.BigDecimal;
import java.util.Comparator;
import junit.framework.TestCase;
import org.eclipse.jpt.common.utility.internal.StringTools;
import org.eclipse.jpt.common.utility.internal.VersionComparator;
import org.eclipse.jpt.common.utility.internal.VersionComparator.SegmentParser;
@SuppressWarnings("nls")
public class VersionComparatorTests
extends TestCase
{
public VersionComparatorTests(String name) {
super(name);
}
public void testVersionIsEqual_integer() {
assertTrue(VersionComparator.INTEGER_VERSION_COMPARATOR.compare("2.0.0", "2.0.0") == 0);
assertTrue(VersionComparator.INTEGER_VERSION_COMPARATOR.compare("2.0.0", "2.0.0.0") == 0);
assertTrue(VersionComparator.INTEGER_VERSION_COMPARATOR.compare("2.0.0.0.0.0.0000", "2.0") == 0);
assertTrue(VersionComparator.INTEGER_VERSION_COMPARATOR.compare("2.0.-1", "2.0.-1") == 0);
}
public void testVersionIsLess_integer() {
assertTrue(VersionComparator.INTEGER_VERSION_COMPARATOR.compare("2.0.0", "2.0.1") < 0);
assertTrue(VersionComparator.INTEGER_VERSION_COMPARATOR.compare("2.5.0", "2.14") < 0);
assertTrue(VersionComparator.INTEGER_VERSION_COMPARATOR.compare("2.5.0", "2.5.0.0.1.0") < 0);
assertTrue(VersionComparator.INTEGER_VERSION_COMPARATOR.compare("2.5.0.0.0.-1", "2.5") < 0);
assertTrue(VersionComparator.INTEGER_VERSION_COMPARATOR.compare("2.0.-1", "2.0.0") < 0);
assertTrue(VersionComparator.INTEGER_VERSION_COMPARATOR.compare("2.0.-1", "2") < 0);
}
public void testVersionIsGreater_integer() {
assertTrue(VersionComparator.INTEGER_VERSION_COMPARATOR.compare("2.0.2", "2.0.1") > 0);
assertTrue(VersionComparator.INTEGER_VERSION_COMPARATOR.compare("2.0.2", "2.0.1") > 0);
assertTrue(VersionComparator.INTEGER_VERSION_COMPARATOR.compare("2.5.0.0.1.0", "2.5.0") > 0);
assertTrue(VersionComparator.INTEGER_VERSION_COMPARATOR.compare("2.5", "2.5.0.0.0.-1") > 0);
assertTrue(VersionComparator.INTEGER_VERSION_COMPARATOR.compare("2.0.0", "2.0.-1") > 0);
assertTrue(VersionComparator.INTEGER_VERSION_COMPARATOR.compare("2", "2.0.-1") > 0);
}
public void testVersionIsEqual_integer_comma() {
Comparator<String> versionComparator = new VersionComparator<BigDecimal>(",", DecimalSegmentParser.instance());
assertTrue(versionComparator.compare("2,0,0", "2,0,0") == 0);
assertTrue(versionComparator.compare("2,0.0,0", "2,0,0") == 0);
assertTrue(versionComparator.compare("2,0.0,0", "2,0,0.0") == 0);
assertTrue(versionComparator.compare("2.0,0.0,0", "2,0,0.0") == 0);
}
public void testVersionIsLess_integer_comma() {
Comparator<String> versionComparator = new VersionComparator<BigDecimal>(",", DecimalSegmentParser.instance());
assertTrue(versionComparator.compare("2,0,0", "2,0,1") < 0);
assertTrue(versionComparator.compare("2,0.0,0", "2,0,1") < 0);
assertTrue(versionComparator.compare("2,0,0", "2,0,1.0") < 0);
assertTrue(versionComparator.compare("2.0,0,0", "2,0,1") < 0);
}
public void testVersionIsGreater_integer_comma() {
Comparator<String> versionComparator = new VersionComparator<BigDecimal>(",", DecimalSegmentParser.instance());
assertTrue(versionComparator.compare("2,0,2", "2,0,1") > 0);
assertTrue(versionComparator.compare("2,0,2.1", "2,0,1") > 0);
assertTrue(versionComparator.compare("2,0,2", "2,0,1.9") > 0);
assertTrue(versionComparator.compare("2.000,0,2", "2,0,1") > 0);
}
public void testVersionIsEqual_subclass() {
Comparator<String> versionComparator = new VersionComparator<Integer>() {
@Override
protected Integer parseSegment(int index, String s) {
return Integer.valueOf(s);
}
@Override
protected Integer getZero() {
return Integer.valueOf(0);
}
};
assertTrue(versionComparator.compare("2.0.0", "2.0.0") == 0);
assertTrue(versionComparator.compare("2.0.0", "2.0.0.0") == 0);
assertTrue(versionComparator.compare("2.0.0.0", "2.0") == 0);
assertTrue(versionComparator.compare("2.0.-1", "2.0.-1") == 0);
}
public void testVersionIsLess_subclass() {
Comparator<String> versionComparator = new VersionComparator<Integer>() {
@Override
protected Integer parseSegment(int index, String s) {
return Integer.valueOf(s);
}
@Override
protected Integer getZero() {
return Integer.valueOf(0);
}
};
assertTrue(versionComparator.compare("2.0.0", "2.0.1") < 0);
assertTrue(versionComparator.compare("2.5.0", "2.14") < 0);
assertTrue(versionComparator.compare("2.5.0", "2.5.0.0.1.0") < 0);
assertTrue(versionComparator.compare("2.0.-1", "2.0.0") < 0);
assertTrue(versionComparator.compare("2.0.-1", "2") < 0);
}
public void testVersionIsGreater_subclass() {
Comparator<String> versionComparator = new VersionComparator<Integer>() {
@Override
protected Integer parseSegment(int index, String s) {
return Integer.valueOf(s);
}
@Override
protected Integer getZero() {
return Integer.valueOf(0);
}
};
assertTrue(versionComparator.compare("2.0.2", "2.0.1") > 0);
assertTrue(versionComparator.compare("2.0.2", "2.0.1") > 0);
assertTrue(versionComparator.compare("2.5.0.0.1.0", "2.5.0") > 0);
assertTrue(versionComparator.compare("2.0.0", "2.0.-1") > 0);
assertTrue(versionComparator.compare("2", "2.0.-1") > 0);
}
public void testBadString() {
boolean exCaught = false;
try {
// note the letter 'O' instead of the numeral '0'
assertTrue(VersionComparator.INTEGER_VERSION_COMPARATOR.compare("2.0.0", "2.O.O") == 0);
} catch (NumberFormatException ex) {
exCaught = true;
}
assertTrue(exCaught);
}
public void testBogusSubclass1() {
Comparator<String> versionComparator = new VersionComparator<Integer>() {
// bogus - must override parseSegment(...)
@Override
protected Integer getZero() {
return Integer.valueOf(0);
}
};
boolean exCaught = false;
try {
assertTrue(versionComparator.compare("2.0.0", "2.0.0") == 0);
} catch (UnsupportedOperationException ex) {
exCaught = true;
}
assertTrue(exCaught);
}
public void testBogusSubclass2() {
Comparator<String> versionComparator = new VersionComparator<Integer>() {
@Override
protected Integer parseSegment(int index, String s) {
return Integer.valueOf(s);
}
// bogus - must getZero()
};
boolean exCaught = false;
try {
assertTrue(versionComparator.compare("2.0.0", "2.0.0.0.0") == 0);
} catch (UnsupportedOperationException ex) {
exCaught = true;
}
assertTrue(exCaught);
}
static final class DecimalSegmentParser
implements SegmentParser<BigDecimal>, Serializable
{
public static final SegmentParser<BigDecimal> INSTANCE = new DecimalSegmentParser();
public static SegmentParser<BigDecimal> instance() {
return INSTANCE;
}
// ensure single instance
private DecimalSegmentParser() {
super();
}
// simply parse the segment as an integer
public BigDecimal parse(int segmentIndex, String segment) {
return new BigDecimal(segment);
}
public BigDecimal getZero() {
return ZERO;
}
private static final BigDecimal ZERO = new BigDecimal(0);
@Override
public String toString() {
return StringTools.buildSingletonToString(this);
}
private static final long serialVersionUID = 1L;
private Object readResolve() {
// replace this object with the singleton
return INSTANCE;
}
}
}
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