73 lines
3.4 KiB
Java
73 lines
3.4 KiB
Java
/*******************************************************************************
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* Copyright (c) 2008 IBM Corporation.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* IBM Corporation - initial API and implementation
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*******************************************************************************/
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package com.ibm.wala.core.tests.ptrs;
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import java.io.IOException;
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import org.junit.Assert;
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import org.junit.Test;
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import com.ibm.wala.classLoader.Language;
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import com.ibm.wala.core.tests.callGraph.CallGraphTestUtil;
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import com.ibm.wala.core.tests.util.TestConstants;
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import com.ibm.wala.ipa.callgraph.AnalysisCacheImpl;
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import com.ibm.wala.ipa.callgraph.AnalysisOptions;
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import com.ibm.wala.ipa.callgraph.AnalysisScope;
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import com.ibm.wala.ipa.callgraph.CGNode;
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import com.ibm.wala.ipa.callgraph.CallGraph;
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import com.ibm.wala.ipa.callgraph.CallGraphBuilder;
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import com.ibm.wala.ipa.callgraph.Entrypoint;
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import com.ibm.wala.ipa.callgraph.impl.Everywhere;
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import com.ibm.wala.ipa.callgraph.impl.Util;
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import com.ibm.wala.ipa.callgraph.propagation.HeapModel;
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import com.ibm.wala.ipa.callgraph.propagation.InstanceKey;
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import com.ibm.wala.ipa.callgraph.propagation.PointerAnalysis;
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import com.ibm.wala.ipa.cha.ClassHierarchy;
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import com.ibm.wala.ipa.cha.ClassHierarchyException;
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import com.ibm.wala.ipa.cha.ClassHierarchyFactory;
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import com.ibm.wala.types.ClassLoaderReference;
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import com.ibm.wala.types.MethodReference;
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import com.ibm.wala.types.Selector;
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import com.ibm.wala.types.TypeReference;
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import com.ibm.wala.util.CancelException;
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import com.ibm.wala.util.intset.OrdinalSet;
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public class ZeroLengthArrayTest {
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@Test
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public void testZeroLengthArray() throws ClassHierarchyException, IllegalArgumentException, CancelException, IOException {
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AnalysisScope scope = CallGraphTestUtil.makeJ2SEAnalysisScope(TestConstants.WALA_TESTDATA,
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CallGraphTestUtil.REGRESSION_EXCLUSIONS);
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ClassHierarchy cha = ClassHierarchyFactory.make(scope);
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Iterable<Entrypoint> entrypoints = com.ibm.wala.ipa.callgraph.impl.Util.makeMainEntrypoints(scope, cha,
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TestConstants.ZERO_LENGTH_ARRAY_MAIN);
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AnalysisOptions options = CallGraphTestUtil.makeAnalysisOptions(scope, entrypoints);
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CallGraphBuilder<InstanceKey> builder = Util.makeVanillaZeroOneCFABuilder(Language.JAVA, options, new AnalysisCacheImpl(), cha, scope);
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CallGraph cg = builder.makeCallGraph(options, null);
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PointerAnalysis<InstanceKey> pa = builder.getPointerAnalysis();
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// System.err.println(pa);
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HeapModel heapModel = pa.getHeapModel();
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CGNode mainNode = cg.getNode(
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cha.resolveMethod(MethodReference.findOrCreate(
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TypeReference.findOrCreate(ClassLoaderReference.Application, TestConstants.ZERO_LENGTH_ARRAY_MAIN),
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Selector.make("main([Ljava/lang/String;)V"))), Everywhere.EVERYWHERE);
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OrdinalSet<InstanceKey> pointsToSet = pa.getPointsToSet(heapModel.getPointerKeyForLocal(mainNode, 4));
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Assert.assertEquals(1, pointsToSet.size());
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InstanceKey arrayKey = pointsToSet.iterator().next();
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OrdinalSet<InstanceKey> arrayContents = pa.getPointsToSet(heapModel.getPointerKeyForArrayContents(arrayKey));
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System.err.println(arrayContents);
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Assert.assertEquals(0, arrayContents.size());
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}
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}
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