WALA/com.ibm.wala.core.tests/src/com/ibm/wala/core/tests/cha/MissingSuperTest.java

77 lines
3.2 KiB
Java

/*******************************************************************************
* Copyright (c) 2008 IBM Corporation.
* 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package com.ibm.wala.core.tests.cha;
import com.ibm.wala.classLoader.IClass;
import com.ibm.wala.classLoader.IMethod;
import com.ibm.wala.classLoader.PhantomClass;
import com.ibm.wala.core.tests.util.TestConstants;
import com.ibm.wala.core.tests.util.WalaTestCase;
import com.ibm.wala.ipa.callgraph.AnalysisCacheImpl;
import com.ibm.wala.ipa.callgraph.AnalysisScope;
import com.ibm.wala.ipa.callgraph.IAnalysisCacheView;
import com.ibm.wala.ipa.cha.ClassHierarchy;
import com.ibm.wala.ipa.cha.ClassHierarchyException;
import com.ibm.wala.ipa.cha.ClassHierarchyFactory;
import com.ibm.wala.types.ClassLoaderReference;
import com.ibm.wala.types.TypeReference;
import com.ibm.wala.util.config.AnalysisScopeReader;
import com.ibm.wala.util.io.FileProvider;
import org.junit.Assert;
import org.junit.Test;
import java.io.IOException;
import java.util.Collection;
public class MissingSuperTest extends WalaTestCase {
/**
* Test handling of an invalid class where a non-abstract method has no code.
* We want to throw an exception rather than crash.
*
* @throws IOException
* @throws ClassHierarchyException
*/
@Test
public void testMissingSuper() throws IOException, ClassHierarchyException {
AnalysisScope scope = AnalysisScopeReader.readJavaScope(TestConstants.WALA_TESTDATA,
(new FileProvider()).getFile("J2SEClassHierarchyExclusions.txt"),
MissingSuperTest.class.getClassLoader());
TypeReference ref = TypeReference.findOrCreate(ClassLoaderReference.Application,
"Lmissingsuper/MissingSuper");
// without phantom classes, won't be able to resolve
ClassHierarchy cha = ClassHierarchyFactory.make(scope);
Assert.assertNull("lookup should not work", cha.lookupClass(ref));
// with phantom classes, lookup and IR construction should work
cha = ClassHierarchyFactory.makeWithPhantom(scope);
IClass klass = cha.lookupClass(ref);
Assert.assertNotNull("expected class MissingSuper to load", klass);
IAnalysisCacheView cache = new AnalysisCacheImpl();
Collection<? extends IMethod> declaredMethods = klass.getDeclaredMethods();
Assert.assertEquals(declaredMethods.toString(), 2, declaredMethods.size());
for (IMethod m : declaredMethods) {
// should succeed
cache.getIR(m);
}
// there should be one PhantomClass in the Application class loader
boolean found = false;
for (IClass klass2: cha) {
if (klass2 instanceof PhantomClass && klass2.getReference().getClassLoader().equals
(ClassLoaderReference.Application)) {
Assert.assertEquals("Lmissingsuper/Super", klass2.getReference().getName().toString());
found = true;
}
}
Assert.assertTrue(found);
}
}