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      1 /*
      2  * Copyright 2013, Google Inc.
      3  * All rights reserved.
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      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are
      7  * met:
      8  *
      9  *     * Redistributions of source code must retain the above copyright
     10  * notice, this list of conditions and the following disclaimer.
     11  *     * Redistributions in binary form must reproduce the above
     12  * copyright notice, this list of conditions and the following disclaimer
     13  * in the documentation and/or other materials provided with the
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     15  *     * Neither the name of Google Inc. nor the names of its
     16  * contributors may be used to endorse or promote products derived from
     17  * this software without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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     29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 package org.jf.dexlib2.analysis.util;
     33 
     34 import com.google.common.collect.ImmutableList;
     35 import com.google.common.collect.ImmutableSet;
     36 import junit.framework.Assert;
     37 import org.jf.dexlib2.Opcodes;
     38 import org.jf.dexlib2.analysis.ClassPath;
     39 import org.jf.dexlib2.analysis.DexClassProvider;
     40 import org.jf.dexlib2.analysis.TestUtils;
     41 import org.jf.dexlib2.analysis.TypeProto;
     42 import org.jf.dexlib2.iface.ClassDef;
     43 import org.jf.dexlib2.immutable.ImmutableDexFile;
     44 import org.junit.Test;
     45 
     46 import java.io.IOException;
     47 
     48 public class SuperclassChainTest {
     49 
     50     @Test
     51     public void testGetSuperclassChain() throws IOException {
     52         ClassDef objectClassDef = TestUtils.makeClassDef("Ljava/lang/Object;", null);
     53         ClassDef oneClassDef = TestUtils.makeClassDef("Ltest/one;", "Ljava/lang/Object;");
     54         ClassDef twoClassDef = TestUtils.makeClassDef("Ltest/two;", "Ltest/one;");
     55         ClassDef threeClassDef = TestUtils.makeClassDef("Ltest/three;", "Ltest/two;");
     56 
     57         ImmutableSet<ClassDef> classes = ImmutableSet.<ClassDef>of(
     58                 objectClassDef, oneClassDef, twoClassDef, threeClassDef);
     59 
     60         ClassPath classPath = new ClassPath(new DexClassProvider(new ImmutableDexFile(Opcodes.getDefault(), classes)));
     61 
     62         TypeProto objectClassProto = classPath.getClass("Ljava/lang/Object;");
     63         TypeProto oneClassProto = classPath.getClass("Ltest/one;");
     64         TypeProto twoClassProto = classPath.getClass("Ltest/two;");
     65         TypeProto threeClassProto = classPath.getClass("Ltest/three;");
     66 
     67         Assert.assertEquals(
     68                 ImmutableList.<TypeProto>of(),
     69                 ImmutableList.copyOf(TypeProtoUtils.getSuperclassChain(objectClassProto)));
     70 
     71         Assert.assertEquals(
     72                 ImmutableList.<TypeProto>of(objectClassProto),
     73                 ImmutableList.copyOf(TypeProtoUtils.getSuperclassChain(oneClassProto)));
     74 
     75         Assert.assertEquals(
     76                 ImmutableList.<TypeProto>of(oneClassProto, objectClassProto),
     77                 ImmutableList.copyOf(TypeProtoUtils.getSuperclassChain(twoClassProto)));
     78 
     79         Assert.assertEquals(
     80                 ImmutableList.<TypeProto>of(twoClassProto, oneClassProto, objectClassProto),
     81                 ImmutableList.copyOf(TypeProtoUtils.getSuperclassChain(threeClassProto)));
     82     }
     83 
     84     @Test
     85     public void testGetSuperclassChain_Unresolved() throws IOException {
     86         // Ltest/one; isn't defined
     87 
     88         ClassDef twoClassDef = TestUtils.makeClassDef("Ltest/two;", "Ltest/one;");
     89         ClassDef threeClassDef = TestUtils.makeClassDef("Ltest/three;", "Ltest/two;");
     90         ImmutableSet<ClassDef> classes = ImmutableSet.<ClassDef>of(twoClassDef, threeClassDef);
     91         ClassPath classPath = new ClassPath(new DexClassProvider(new ImmutableDexFile(Opcodes.getDefault(), classes)));
     92 
     93         TypeProto unknownClassProto = classPath.getUnknownClass();
     94         TypeProto oneClassProto = classPath.getClass("Ltest/one;");
     95         TypeProto twoClassProto = classPath.getClass("Ltest/two;");
     96         TypeProto threeClassProto = classPath.getClass("Ltest/three;");
     97 
     98         Assert.assertEquals(
     99                 ImmutableList.<TypeProto>of(oneClassProto, unknownClassProto),
    100                 ImmutableList.copyOf(TypeProtoUtils.getSuperclassChain(twoClassProto)));
    101 
    102         Assert.assertEquals(
    103                 ImmutableList.<TypeProto>of(twoClassProto, oneClassProto, unknownClassProto),
    104                 ImmutableList.copyOf(TypeProtoUtils.getSuperclassChain(threeClassProto)));
    105     }
    106 }
    107