250 lines
11 KiB
Java
250 lines
11 KiB
Java
/*******************************************************************************
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* Copyright (c) 2002 - 2006 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.cfg.exc.inter;
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import org.junit.AfterClass;
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import org.junit.Assert;
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import org.junit.BeforeClass;
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import org.junit.Test;
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import com.ibm.wala.cfg.exc.ExceptionPruningAnalysis;
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import com.ibm.wala.cfg.exc.InterprocAnalysisResult;
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import com.ibm.wala.cfg.exc.NullPointerAnalysis;
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import com.ibm.wala.cfg.exc.intra.IntraprocNullPointerAnalysis;
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import com.ibm.wala.classLoader.ClassLoaderFactory;
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import com.ibm.wala.classLoader.ClassLoaderFactoryImpl;
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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.core.tests.util.WalaTestCase;
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import com.ibm.wala.ipa.callgraph.AnalysisCache;
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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.Util;
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import com.ibm.wala.ipa.callgraph.propagation.InstanceKey;
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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.ssa.SSAInstruction;
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import com.ibm.wala.ssa.analysis.IExplodedBasicBlock;
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import com.ibm.wala.types.MethodReference;
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import com.ibm.wala.util.CancelException;
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import com.ibm.wala.util.NullProgressMonitor;
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import com.ibm.wala.util.WalaException;
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import com.ibm.wala.util.config.AnalysisScopeReader;
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import com.ibm.wala.util.graph.GraphIntegrity.UnsoundGraphException;
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import com.ibm.wala.util.io.FileProvider;
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import com.ibm.wala.util.strings.StringStuff;
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import com.ibm.wala.util.warnings.Warnings;
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/**
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* Test validity and precision of inter-procedural NullpointerException-Analysis {@link IntraprocNullPointerAnalysis}
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*
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*/
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public class NullPointerExceptionInterTest extends WalaTestCase {
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private static AnalysisScope scope;
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private static ClassHierarchy cha;
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private static CallGraph cg;
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private static AnalysisCache cache;
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@BeforeClass
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public static void beforeClass() throws Exception {
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cache = new AnalysisCacheImpl();
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scope = AnalysisScopeReader.readJavaScope(TestConstants.WALA_TESTDATA,
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(new FileProvider()).getFile(CallGraphTestUtil.REGRESSION_EXCLUSIONS), NullPointerExceptionInterTest.class.getClassLoader());
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ClassLoaderFactory factory = new ClassLoaderFactoryImpl(scope.getExclusions());
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try {
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cha = ClassHierarchyFactory.make(scope, factory);
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Iterable<Entrypoint> entrypoints = com.ibm.wala.ipa.callgraph.impl.Util.makeMainEntrypoints(scope, cha, "Lcfg/exc/inter/CallFieldAccess");
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AnalysisOptions options = new AnalysisOptions(scope, entrypoints);
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CallGraphBuilder<InstanceKey> builder = Util.makeNCFABuilder(1, options, cache, cha, scope);
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cg = builder.makeCallGraph(options, null);
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} catch (ClassHierarchyException e) {
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throw new Exception(e);
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}
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}
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@AfterClass
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public static void afterClass() throws Exception {
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Warnings.clear();
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scope = null;
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cha = null;
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cg = null;
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cache = null;
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}
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public static void main(String[] args) {
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justThisTest(NullPointerExceptionInterTest.class);
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}
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@Test
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public void testIfException() throws UnsoundGraphException, CancelException, WalaException {
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MethodReference mr = StringStuff.makeMethodReference("cfg.exc.inter.CallFieldAccess.callIfException()Lcfg/exc/intra/B");
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InterprocAnalysisResult<SSAInstruction, IExplodedBasicBlock> interExplodedCFG =
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NullPointerAnalysis.computeInterprocAnalysis(cg, new NullProgressMonitor());
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Assert.assertEquals(1, cg.getNodes(mr).size());
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final CGNode callNode = cg.getNodes(mr).iterator().next();
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ExceptionPruningAnalysis<SSAInstruction, IExplodedBasicBlock> intraExplodedCFG = interExplodedCFG.getResult(callNode);
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Assert.assertTrue(intraExplodedCFG.hasExceptions());
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}
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@Test
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public void testDynamicIfException() throws UnsoundGraphException, CancelException, WalaException {
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MethodReference mr = StringStuff.makeMethodReference("cfg.exc.inter.CallFieldAccess.callDynamicIfException()Lcfg/exc/intra/B");
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Assert.assertEquals(1, cg.getNodes(mr).size());
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final CGNode callNode = cg.getNodes(mr).iterator().next();
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InterprocAnalysisResult<SSAInstruction, IExplodedBasicBlock> interExplodedCFG =
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NullPointerAnalysis.computeInterprocAnalysis(cg, new NullProgressMonitor());
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ExceptionPruningAnalysis<SSAInstruction, IExplodedBasicBlock> intraExplodedCFG = interExplodedCFG.getResult(callNode);
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Assert.assertTrue(intraExplodedCFG.hasExceptions());
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}
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@Test
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public void testIfNoException() throws UnsoundGraphException, CancelException, WalaException {
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MethodReference mr = StringStuff.makeMethodReference("cfg.exc.inter.CallFieldAccess.callIfNoException()Lcfg/exc/intra/B");
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InterprocAnalysisResult<SSAInstruction, IExplodedBasicBlock> interExplodedCFG =
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NullPointerAnalysis.computeInterprocAnalysis(cg, new NullProgressMonitor());
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Assert.assertEquals(1, cg.getNodes(mr).size());
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final CGNode callNode = cg.getNodes(mr).iterator().next();
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ExceptionPruningAnalysis<SSAInstruction, IExplodedBasicBlock> intraExplodedCFG = interExplodedCFG.getResult(callNode);
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Assert.assertFalse(intraExplodedCFG.hasExceptions());
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}
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@Test
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public void testDynamicIfNoException() throws UnsoundGraphException, CancelException, WalaException {
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MethodReference mr = StringStuff.makeMethodReference("cfg.exc.inter.CallFieldAccess.callDynamicIfNoException()Lcfg/exc/intra/B");
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InterprocAnalysisResult<SSAInstruction, IExplodedBasicBlock> interExplodedCFG =
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NullPointerAnalysis.computeInterprocAnalysis(cg, new NullProgressMonitor());
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Assert.assertEquals(1, cg.getNodes(mr).size());
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final CGNode callNode = cg.getNodes(mr).iterator().next();
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ExceptionPruningAnalysis<SSAInstruction, IExplodedBasicBlock> intraExplodedCFG = interExplodedCFG.getResult(callNode);
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Assert.assertFalse(intraExplodedCFG.hasExceptions());
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}
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@Test
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public void testIf2Exception() throws UnsoundGraphException, CancelException, WalaException {
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MethodReference mr = StringStuff.makeMethodReference("cfg.exc.inter.CallFieldAccess.callIf2Exception()Lcfg/exc/intra/B");
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InterprocAnalysisResult<SSAInstruction, IExplodedBasicBlock> interExplodedCFG =
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NullPointerAnalysis.computeInterprocAnalysis(cg, new NullProgressMonitor());
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Assert.assertEquals(1, cg.getNodes(mr).size());
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final CGNode callNode = cg.getNodes(mr).iterator().next();
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ExceptionPruningAnalysis<SSAInstruction, IExplodedBasicBlock> intraExplodedCFG = interExplodedCFG.getResult(callNode);
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Assert.assertTrue(intraExplodedCFG.hasExceptions());
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}
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@Test
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public void testDynamicIf2Exception() throws UnsoundGraphException, CancelException, WalaException {
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MethodReference mr = StringStuff.makeMethodReference("cfg.exc.inter.CallFieldAccess.callDynamicIf2Exception()Lcfg/exc/intra/B");
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Assert.assertEquals(1, cg.getNodes(mr).size());
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final CGNode callNode = cg.getNodes(mr).iterator().next();
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InterprocAnalysisResult<SSAInstruction, IExplodedBasicBlock> interExplodedCFG =
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NullPointerAnalysis.computeInterprocAnalysis(cg, new NullProgressMonitor());
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ExceptionPruningAnalysis<SSAInstruction, IExplodedBasicBlock> intraExplodedCFG = interExplodedCFG.getResult(callNode);
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Assert.assertTrue(intraExplodedCFG.hasExceptions());
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}
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@Test
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public void testIf2NoException() throws UnsoundGraphException, CancelException, WalaException {
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MethodReference mr = StringStuff.makeMethodReference("cfg.exc.inter.CallFieldAccess.callIf2NoException()Lcfg/exc/intra/B");
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InterprocAnalysisResult<SSAInstruction, IExplodedBasicBlock> interExplodedCFG =
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NullPointerAnalysis.computeInterprocAnalysis(cg, new NullProgressMonitor());
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Assert.assertEquals(1, cg.getNodes(mr).size());
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final CGNode callNode = cg.getNodes(mr).iterator().next();
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ExceptionPruningAnalysis<SSAInstruction, IExplodedBasicBlock> intraExplodedCFG = interExplodedCFG.getResult(callNode);
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Assert.assertFalse(intraExplodedCFG.hasExceptions());
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}
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@Test
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public void testDynamicIf2NoException() throws UnsoundGraphException, CancelException, WalaException {
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MethodReference mr = StringStuff.makeMethodReference("cfg.exc.inter.CallFieldAccess.callDynamicIf2NoException()Lcfg/exc/intra/B");
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InterprocAnalysisResult<SSAInstruction, IExplodedBasicBlock> interExplodedCFG =
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NullPointerAnalysis.computeInterprocAnalysis(cg, new NullProgressMonitor());
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Assert.assertEquals(1, cg.getNodes(mr).size());
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final CGNode callNode = cg.getNodes(mr).iterator().next();
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ExceptionPruningAnalysis<SSAInstruction, IExplodedBasicBlock> intraExplodedCFG = interExplodedCFG.getResult(callNode);
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Assert.assertFalse(intraExplodedCFG.hasExceptions());
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}
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@Test
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public void testGetException() throws UnsoundGraphException, CancelException, WalaException {
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MethodReference mr = StringStuff.makeMethodReference("cfg.exc.inter.CallFieldAccess.callGetException()Lcfg/exc/intra/B");
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InterprocAnalysisResult<SSAInstruction, IExplodedBasicBlock> interExplodedCFG =
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NullPointerAnalysis.computeInterprocAnalysis(cg, new NullProgressMonitor());
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Assert.assertEquals(1, cg.getNodes(mr).size());
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final CGNode callNode = cg.getNodes(mr).iterator().next();
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ExceptionPruningAnalysis<SSAInstruction, IExplodedBasicBlock> intraExplodedCFG = interExplodedCFG.getResult(callNode);
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Assert.assertTrue(intraExplodedCFG.hasExceptions());
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}
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@Test
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public void testDynamicGetException() throws UnsoundGraphException, CancelException, WalaException {
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MethodReference mr = StringStuff.makeMethodReference("cfg.exc.inter.CallFieldAccess.callDynamicGetException()Lcfg/exc/intra/B");
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Assert.assertEquals(1, cg.getNodes(mr).size());
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final CGNode callNode = cg.getNodes(mr).iterator().next();
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InterprocAnalysisResult<SSAInstruction, IExplodedBasicBlock> interExplodedCFG =
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NullPointerAnalysis.computeInterprocAnalysis(cg, new NullProgressMonitor());
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ExceptionPruningAnalysis<SSAInstruction, IExplodedBasicBlock> intraExplodedCFG = interExplodedCFG.getResult(callNode);
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Assert.assertTrue(intraExplodedCFG.hasExceptions());
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}
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}
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