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
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
/**
* Copyright 2012-2014 Julien Eluard and contributors
* This project includes software developed by Julien Eluard: https://github.com/jeluard/
*
* 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 org.osjava.jardiff;
import org.junit.Test;
import org.objectweb.asm.Opcodes;
import static org.junit.Assert.*;
public class ToolsTest {
static class lala {
int lala;
}
@Test
public void isClassAccessChange() {
// A class can't become final.
assertTrue(Tools.isClassAccessChange(0, Opcodes.ACC_FINAL));
assertTrue(Tools.isClassAccessChange(0, Opcodes.ACC_PUBLIC + Opcodes.ACC_FINAL));
// ... but can become non-final.
assertFalse(Tools.isClassAccessChange(Opcodes.ACC_FINAL, 0));
assertFalse(Tools.isClassAccessChange(Opcodes.ACC_FINAL + Opcodes.ACC_PUBLIC, Opcodes.ACC_PUBLIC));
// No matter the final access, can't become protected or private or
// package if it was public.
assertTrue(Tools.isClassAccessChange(Opcodes.ACC_FINAL + Opcodes.ACC_PUBLIC, 0));
assertTrue(Tools.isClassAccessChange(Opcodes.ACC_PUBLIC, Opcodes.ACC_PROTECTED));
// A class can become concrete.
assertFalse(Tools.isClassAccessChange(Opcodes.ACC_ABSTRACT, 0));
assertFalse(Tools.isClassAccessChange(Opcodes.ACC_ABSTRACT + Opcodes.ACC_PUBLIC, Opcodes.ACC_PUBLIC));
assertFalse(Tools.isClassAccessChange(Opcodes.ACC_ABSTRACT + Opcodes.ACC_PROTECTED, Opcodes.ACC_PROTECTED));
// ...but can't become abstract
assertTrue(Tools.isClassAccessChange(0, Opcodes.ACC_ABSTRACT));
assertTrue(Tools.isClassAccessChange(Opcodes.ACC_PUBLIC, Opcodes.ACC_PUBLIC + Opcodes.ACC_ABSTRACT));
assertTrue(Tools.isClassAccessChange(Opcodes.ACC_PROTECTED, Opcodes.ACC_PROTECTED + Opcodes.ACC_ABSTRACT));
}
@Test
public void isFieldAccessChange() {
// A field can't become final.
assertTrue(Tools.isFieldAccessChange(0, Opcodes.ACC_FINAL));
assertTrue(Tools.isFieldAccessChange(0, Opcodes.ACC_PUBLIC + Opcodes.ACC_FINAL));
// ... but can become non-final.
assertFalse(Tools.isFieldAccessChange(Opcodes.ACC_FINAL, 0));
assertFalse(Tools.isFieldAccessChange(Opcodes.ACC_FINAL + Opcodes.ACC_PUBLIC, Opcodes.ACC_PUBLIC));
// No matter the final access, can't become protected or private or
// package if it was public.
assertTrue(Tools.isFieldAccessChange(Opcodes.ACC_FINAL + Opcodes.ACC_PUBLIC, 0));
assertTrue(Tools.isFieldAccessChange(Opcodes.ACC_PUBLIC, Opcodes.ACC_PROTECTED));
// A field can't change static
assertTrue(Tools.isFieldAccessChange(Opcodes.ACC_STATIC, 0));
assertTrue(Tools.isFieldAccessChange(Opcodes.ACC_STATIC + Opcodes.ACC_PUBLIC, Opcodes.ACC_PUBLIC));
// A field can't change volatile
assertTrue(Tools.isFieldAccessChange(Opcodes.ACC_VOLATILE, 0));
assertTrue(Tools.isFieldAccessChange(Opcodes.ACC_VOLATILE + Opcodes.ACC_PUBLIC, Opcodes.ACC_PUBLIC));
// A field can change transient
assertFalse(Tools.isFieldAccessChange(0,
Opcodes.ACC_TRANSIENT));
assertFalse(Tools.isFieldAccessChange(Opcodes.ACC_PUBLIC,
Opcodes.ACC_PUBLIC + Opcodes.ACC_TRANSIENT));
assertFalse(Tools.isFieldAccessChange(Opcodes.ACC_TRANSIENT,
0));
assertFalse(Tools.isFieldAccessChange(Opcodes.ACC_PUBLIC + Opcodes.ACC_TRANSIENT,
Opcodes.ACC_PUBLIC));
}
@Test
public void isMethodAccessChange() {
// A non-static method can't become final.
assertTrue(Tools.isMethodAccessChange(0, Opcodes.ACC_FINAL));
assertTrue(Tools.isMethodAccessChange(0, Opcodes.ACC_PUBLIC + Opcodes.ACC_FINAL));
// ... but can become non-final.
assertFalse(Tools.isMethodAccessChange(Opcodes.ACC_FINAL, 0));
assertFalse(Tools.isMethodAccessChange(Opcodes.ACC_FINAL + Opcodes.ACC_PUBLIC, Opcodes.ACC_PUBLIC));
// ... but a static method can become final!
assertFalse(Tools.isMethodAccessChange(Opcodes.ACC_STATIC,
Opcodes.ACC_STATIC + Opcodes.ACC_FINAL));
assertFalse(Tools.isMethodAccessChange(Opcodes.ACC_STATIC + Opcodes.ACC_PUBLIC,
Opcodes.ACC_STATIC + Opcodes.ACC_PUBLIC + Opcodes.ACC_FINAL));
// No matter the final access, can't become protected or private or
// package if it was public.
assertTrue(Tools.isMethodAccessChange(Opcodes.ACC_FINAL + Opcodes.ACC_PUBLIC, 0));
assertTrue(Tools.isMethodAccessChange(Opcodes.ACC_PUBLIC, Opcodes.ACC_PROTECTED));
// A class or method can become concrete.
assertFalse(Tools.isMethodAccessChange(Opcodes.ACC_ABSTRACT, 0));
assertFalse(Tools.isMethodAccessChange(Opcodes.ACC_ABSTRACT + Opcodes.ACC_PUBLIC, Opcodes.ACC_PUBLIC));
assertFalse(Tools.isMethodAccessChange(Opcodes.ACC_ABSTRACT + Opcodes.ACC_PROTECTED, Opcodes.ACC_PROTECTED));
// ...but can't become abstract
assertTrue(Tools.isMethodAccessChange(0, Opcodes.ACC_ABSTRACT));
assertTrue(Tools.isMethodAccessChange(Opcodes.ACC_PUBLIC, Opcodes.ACC_PUBLIC + Opcodes.ACC_ABSTRACT));
assertTrue(Tools.isMethodAccessChange(Opcodes.ACC_PROTECTED, Opcodes.ACC_PROTECTED + Opcodes.ACC_ABSTRACT));
// A method can't change static
assertTrue(Tools.isMethodAccessChange(Opcodes.ACC_STATIC, 0));
assertTrue(Tools.isMethodAccessChange(Opcodes.ACC_STATIC + Opcodes.ACC_PUBLIC, Opcodes.ACC_PUBLIC));
// A method can change synchronized
assertFalse(Tools.isMethodAccessChange(0,
Opcodes.ACC_SYNCHRONIZED));
assertFalse(Tools.isMethodAccessChange(Opcodes.ACC_PUBLIC,
Opcodes.ACC_PUBLIC + Opcodes.ACC_SYNCHRONIZED));
assertFalse(Tools.isMethodAccessChange(Opcodes.ACC_SYNCHRONIZED,
0));
assertFalse(Tools.isMethodAccessChange(Opcodes.ACC_PUBLIC + Opcodes.ACC_SYNCHRONIZED,
Opcodes.ACC_PUBLIC));
// A method can change native
assertFalse(Tools.isMethodAccessChange(0,
Opcodes.ACC_NATIVE));
assertFalse(Tools.isMethodAccessChange(Opcodes.ACC_PUBLIC,
Opcodes.ACC_PUBLIC + Opcodes.ACC_NATIVE));
assertFalse(Tools.isMethodAccessChange(Opcodes.ACC_NATIVE,
0));
assertFalse(Tools.isMethodAccessChange(Opcodes.ACC_PUBLIC + Opcodes.ACC_NATIVE,
Opcodes.ACC_PUBLIC));
}
}
|
