blob: 2461b5bff3677e258755c11013252c719e5e5508 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package libcore.build;
import java.lang.Enum;
import java.lang.NoSuchMethodException;
import java.lang.reflect.Method;
import libcore.io.IoTracker;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import static org.junit.Assert.*;
@RunWith(JUnit4.class)
public final class DuplicateBridgeMethodsTest {
/**
* Checks that javac+turbine is not causing duplicate bridge methods to be inserted into
* subclasses (b/65645120). Turbine doesn't generate bridge methods. When javac
* compiles a subclass against a superclass that is missing bridge methods it will by
* default insert the missing bridge methods into the subclass. Android's bundled javac
* prebuilts support a -XDskipDuplicateBridges=true flag to not insert the missing bridge
* methods. If the prebuilt javac is not being used then TURBINE_ENABLED=false should be
* passed on the command line to make for the platform build.
* This test ensures that an extra bridge method did not get inserted into the
* libcore.io.IoTracker.Mode enum.
*/
@Test
public void testSubclassHasNoBridgeMethod() throws NoSuchMethodException {
Method method = IoTracker.Mode.class.getMethod("compareTo",
new Class[]{java.lang.Object.class});
assertTrue(method.isBridge());
assertTrue(method.isSynthetic());
assertSame("Extra bridge methods found, use a javac that supports " +
"-XDskipDuplicateBridges=true or set TURBINE_ENABLED=false " +
"when building the platform",
method.getDeclaringClass(), java.lang.Enum.class);
}
}
|
