1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.dx.merge;
18
19import com.android.dx.io.DexBuffer;
20import com.android.dx.util.DexException;
21import java.io.IOException;
22import junit.framework.TestCase;
23
24public final class MergeConflictTest extends TestCase {
25
26    public void testMergeConflict() throws IOException {
27        DexBuffer a = resourceToDexBuffer("/testdata/A.dex");
28        DexBuffer b = resourceToDexBuffer("/testdata/B.dex");
29
30        // a and b don't overlap; this should succeed
31        DexBuffer ab = new DexMerger(a, b, CollisionPolicy.FAIL).merge();
32
33        // a and ab overlap; this should fail
34        DexMerger dexMerger = new DexMerger(a, ab, CollisionPolicy.FAIL);
35        try {
36            dexMerger.merge();
37            fail();
38        } catch (DexException expected) {
39            assertEquals("Multiple dex files define Ltestdata/A;", expected.getMessage());
40        }
41    }
42
43    private DexBuffer resourceToDexBuffer(String resource) throws IOException {
44        return new DexBuffer(getClass().getResourceAsStream(resource));
45    }
46}
47