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/**
* Copyright 2012-2014 Julien Eluard and contributors
* This project includes software developed by Julien Eluard: https://github.com/jeluard/
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.semver.jardiff;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import junit.framework.Assert;
import org.junit.Test;
import org.objectweb.asm.ClassReader;
import org.osjava.jardiff.ClassInfo;
import org.osjava.jardiff.DiffCriteria;
import org.osjava.jardiff.DiffHandler;
import org.osjava.jardiff.JarDiff;
import org.osjava.jardiff.SimpleDiffCriteria;
import org.semver.Delta.Deprecate;
import org.semver.Delta.Difference;
import org.semver.Dumper;
public class DeprecateDetectionTest {
public static abstract class InheritanceRoot {
public abstract void aMethod();
}
public static class DirectDescendant extends InheritanceRoot {
@Override
public void aMethod() {}
}
public static class ClassA extends InheritanceRoot {
@Override
public void aMethod() {}
public int aField = 0;
}
public static class ClassB extends DirectDescendant {
@Override
@Deprecated
public void aMethod() {}
@Deprecated
public int aField = 0;
}
@Test
public void shouldInheritedMethodMatchImplementedMethod() throws SecurityException, NoSuchMethodException, IllegalArgumentException, IllegalAccessException, InvocationTargetException, IOException {
/**
* The situation we are testing is as follows:
* Abstract class InheritanceRoot is initially implemented directly by ClassA.
* ClassA is later modified to extend another implementation of InheritanceRoot
* and the methods required by InheritanceRoot are now removed from ClassA directly,
* and instead inherited from the new parent, DirectDescendant. For the purposes of
* this test, this new ClassA is represented by ClassB (as we can't have the same
* class declared twice in a test -- in real life, this would both be ClassA's,
* in different jars).
*/
Map<String, ClassInfo> oldClassInfoMap = new HashMap<String, ClassInfo>();
Map<String, ClassInfo> newClassInfoMap = new HashMap<String, ClassInfo>();
JarDiff jd = new JarDiff();
Method loadInfoMethod = JarDiff.class.getDeclaredMethod("loadClassInfo", ClassReader.class);
Method diffMethod = JarDiff.class.getDeclaredMethod("diff", DiffHandler.class, DiffCriteria.class,
String.class, String.class,
Map.class, Map.class);
diffMethod.setAccessible(true);
loadInfoMethod.setAccessible(true);
addClassInfo(oldClassInfoMap, ClassA.class, jd, loadInfoMethod);
addClassInfo(oldClassInfoMap, DirectDescendant.class, jd, loadInfoMethod);
addClassInfo(oldClassInfoMap, InheritanceRoot.class, jd, loadInfoMethod);
addClassInfo(newClassInfoMap, ClassB.class, jd, loadInfoMethod);
addClassInfo(newClassInfoMap, DirectDescendant.class, jd, loadInfoMethod);
addClassInfo(newClassInfoMap, InheritanceRoot.class, jd, loadInfoMethod);
// Make B look like A
newClassInfoMap.put("org/semver/jardiff/DeprecateDetectionTest$ClassA",
newClassInfoMap.get("org/semver/jardiff/DeprecateDetectionTest$ClassB"));
newClassInfoMap.remove("org/semver/jardiff/DeprecateDetectionTest$ClassB");
DifferenceAccumulatingHandler handler = new DifferenceAccumulatingHandler();
diffMethod.invoke(jd, handler, new SimpleDiffCriteria(),
"0.1.0", "0.2.0", oldClassInfoMap, newClassInfoMap);
Dumper.dump(handler.getDelta());
Set<Difference> differences = handler.getDelta().getDifferences();
Assert.assertEquals("differences found", 3, differences.size());
// Naive search for Deprecate.
boolean hasDeprecate = false;
for (Difference d : differences) {
if (d instanceof Deprecate)
hasDeprecate = true;
}
Assert.assertTrue("No Delta.Deprecate found", hasDeprecate);
}
private void addClassInfo(Map<String, ClassInfo> classMap, Class klass, JarDiff jd,
Method loadInfoMethod) throws IllegalArgumentException, IllegalAccessException, InvocationTargetException, IOException {
ClassInfo classInfo = (ClassInfo) loadInfoMethod.invoke(jd, new ClassReader(klass.getName()));
classMap.put(classInfo.getName(), classInfo);
}
}
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