/
AbstractMatcherTest.java
263 lines (216 loc) · 8.33 KB
/
AbstractMatcherTest.java
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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
/*******************************************************************************
* Copyright (c) 2009, 2021 Mountainminds GmbH & Co. KG and Contributors
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Evgeny Mandrikov - initial API and implementation
*
*******************************************************************************/
package org.jacoco.core.internal.analysis.filter;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
import org.jacoco.core.internal.instr.InstrSupport;
import org.junit.Test;
import org.objectweb.asm.Label;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.tree.MethodNode;
import org.objectweb.asm.tree.VarInsnNode;
/**
* Unit tests for {@link AbstractMatcher}.
*/
public class AbstractMatcherTest {
private final AbstractMatcher matcher = new AbstractMatcher() {
};
private final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, 0,
"method_name", "()V", null, null);
@Test
public void skipNonOpcodes() {
m.visitFrame(Opcodes.F_FULL, 0, null, 0, null);
final Label label = new Label();
m.visitLabel(label);
m.visitLineNumber(42, label);
m.visitInsn(Opcodes.NOP);
// should skip all non opcodes
matcher.cursor = m.instructions.getFirst();
matcher.skipNonOpcodes();
assertSame(m.instructions.getLast(), matcher.cursor);
// should not change cursor when it points on instruction with opcode
matcher.skipNonOpcodes();
assertSame(m.instructions.getLast(), matcher.cursor);
// should not do anything when cursor is null
matcher.cursor = null;
matcher.skipNonOpcodes();
}
@Test
public void nextIs() {
m.visitInsn(Opcodes.NOP);
m.visitInsn(Opcodes.NOP);
// should set cursor to null when opcode mismatch
matcher.cursor = m.instructions.getFirst();
matcher.nextIs(Opcodes.ATHROW);
assertNull(matcher.cursor);
// should set cursor to next instruction when match
matcher.cursor = m.instructions.getFirst();
matcher.nextIs(Opcodes.NOP);
assertSame(m.instructions.getLast(), matcher.cursor);
// should not do anything when cursor is null
matcher.cursor = null;
matcher.nextIs(Opcodes.NOP);
}
@Test
public void nextIsSwitch() {
// should set cursor to null when opcode mismatch
m.visitInsn(Opcodes.NOP);
m.visitInsn(Opcodes.NOP);
matcher.cursor = m.instructions.getFirst();
matcher.nextIsSwitch();
assertNull(matcher.cursor);
// should set cursor to next instruction when match
m.instructions.clear();
m.visitInsn(Opcodes.NOP);
m.visitTableSwitchInsn(0, 0, new Label());
matcher.cursor = m.instructions.getFirst();
matcher.nextIsSwitch();
assertSame(m.instructions.getLast(), matcher.cursor);
// should set cursor to next instruction when match
m.instructions.clear();
m.visitInsn(Opcodes.NOP);
m.visitLookupSwitchInsn(new Label(), null, new Label[0]);
matcher.cursor = m.instructions.getFirst();
matcher.nextIsSwitch();
assertSame(m.instructions.getLast(), matcher.cursor);
// should not do anything when cursor is null
matcher.cursor = null;
matcher.nextIsSwitch();
}
@Test
public void nextIsVar() {
m.visitInsn(Opcodes.NOP);
m.visitVarInsn(Opcodes.ILOAD, 42);
// should set cursor to null when opcode mismatch
matcher.cursor = m.instructions.getFirst();
matcher.nextIsVar(Opcodes.ALOAD, "name");
assertNull(matcher.cursor);
// should set cursor to next instruction when match
matcher.cursor = m.instructions.getFirst();
matcher.nextIsVar(Opcodes.ILOAD, "name");
assertSame(m.instructions.getLast(), matcher.cursor);
// should set cursor to null when var mismatch
matcher.cursor = m.instructions.getFirst();
matcher.vars.put("name", new VarInsnNode(Opcodes.ILOAD, 13));
matcher.nextIsVar(Opcodes.ILOAD, "name");
assertNull(matcher.cursor);
// should set cursor to next instruction when match
matcher.cursor = m.instructions.getFirst();
matcher.vars.put("name", new VarInsnNode(Opcodes.ILOAD, 42));
matcher.nextIsVar(Opcodes.ILOAD, "name");
assertSame(m.instructions.getLast(), matcher.cursor);
// should not do anything when cursor is null
matcher.cursor = null;
matcher.nextIsVar(Opcodes.ILOAD, "name");
}
@Test
public void nextIsField() {
m.visitInsn(Opcodes.NOP);
m.visitFieldInsn(Opcodes.PUTSTATIC, "owner", "name", "Z");
// should set cursor to null when opcode mismatch
matcher.cursor = m.instructions.getFirst();
matcher.nextIsField(Opcodes.GETSTATIC, "owner", "name", "Z");
assertNull(matcher.cursor);
// should set cursor to null when owner mismatch
matcher.cursor = m.instructions.getFirst();
matcher.nextIsField(Opcodes.PUTSTATIC, "another_owner", "name", "Z");
assertNull(matcher.cursor);
// should set cursor to null when name mismatch
matcher.cursor = m.instructions.getFirst();
matcher.nextIsField(Opcodes.PUTSTATIC, "owner", "another_name", "Z");
assertNull(matcher.cursor);
// should set cursor to null when descriptor mismatch
matcher.cursor = m.instructions.getFirst();
matcher.nextIsField(Opcodes.PUTSTATIC, "owner", "name",
"another_descriptor");
assertNull(matcher.cursor);
// should set cursor to next instruction when match
matcher.cursor = m.instructions.getFirst();
matcher.nextIsField(Opcodes.PUTSTATIC, "owner", "name", "Z");
assertSame(m.instructions.getLast(), matcher.cursor);
// should not do anything when cursor is null
matcher.cursor = null;
matcher.nextIsField(Opcodes.PUTSTATIC, "owner", "name", "Z");
}
@Test
public void nextIsInvoke() {
m.visitInsn(Opcodes.NOP);
m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "owner", "name", "()V", false);
// should set cursor to null when opcode mismatch
matcher.cursor = m.instructions.getFirst();
matcher.nextIsInvoke(Opcodes.INVOKESTATIC, "owner", "name", "()V");
assertNull(matcher.cursor);
// should set cursor to null when owner mismatch
matcher.cursor = m.instructions.getFirst();
matcher.nextIsInvoke(Opcodes.INVOKEVIRTUAL, "another_owner", "name",
"()V");
assertNull(matcher.cursor);
// should set cursor to null when name mismatch
matcher.cursor = m.instructions.getFirst();
matcher.nextIsInvoke(Opcodes.INVOKEVIRTUAL, "owner", "another_name",
"()V");
assertNull(matcher.cursor);
// should set cursor to null when descriptor mismatch
matcher.cursor = m.instructions.getFirst();
matcher.nextIsInvoke(Opcodes.INVOKEVIRTUAL, "owner", "name",
"(Lanother_descriptor;)V");
assertNull(matcher.cursor);
// should set cursor to next instruction when match
matcher.cursor = m.instructions.getFirst();
matcher.nextIsInvoke(Opcodes.INVOKEVIRTUAL, "owner", "name", "()V");
assertSame(m.instructions.getLast(), matcher.cursor);
// should not do anything when cursor is null
matcher.cursor = null;
matcher.nextIsInvoke(Opcodes.INVOKEVIRTUAL, "owner", "name", "()V");
}
@Test
public void nextIsType() {
m.visitInsn(Opcodes.NOP);
m.visitTypeInsn(Opcodes.NEW, "descriptor");
// should set cursor to null when opcode mismatch
matcher.cursor = m.instructions.getFirst();
matcher.nextIsType(Opcodes.CHECKCAST, "descriptor");
assertNull(matcher.cursor);
// should set cursor to null when descriptor mismatch
matcher.cursor = m.instructions.getFirst();
matcher.nextIsType(Opcodes.NEW, "another_descriptor");
assertNull(matcher.cursor);
// should set cursor to next instruction when match
matcher.cursor = m.instructions.getFirst();
matcher.nextIsType(Opcodes.NEW, "descriptor");
assertSame(m.instructions.getLast(), matcher.cursor);
// should not do anything when cursor is null
matcher.cursor = null;
matcher.nextIsType(Opcodes.NEW, "descriptor");
}
@Test
public void firstIsALoad0() {
// should set cursor to null when no opcodes are present
matcher.firstIsALoad0(m);
assertNull(matcher.cursor);
// should set cursor to null when opcode mismatch
m.visitInsn(Opcodes.NOP);
matcher.firstIsALoad0(m);
assertNull(matcher.cursor);
// should set cursor to null when var mismatch
m.instructions.clear();
m.visitVarInsn(Opcodes.ALOAD, 1);
matcher.firstIsALoad0(m);
assertNull(matcher.cursor);
// should set cursor to first instruction when match
m.instructions.clear();
m.visitVarInsn(Opcodes.ALOAD, 0);
matcher.firstIsALoad0(m);
assertSame(m.instructions.getLast(), matcher.cursor);
}
}