blob: 87e41f0575d31fda6eea5a8511fd1e8da6b50237 (
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
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
|
/*
* Copyright (C) 2009, Google Inc.
* Copyright (C) 2009, Johannes E. Schindelin <johannes.schindelin@gmx.de> and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.diff;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import org.eclipse.jgit.junit.JGitTestUtil;
import org.eclipse.jgit.patch.FileHeader;
import org.eclipse.jgit.patch.Patch;
import org.eclipse.jgit.util.RawParseUtils;
import org.junit.Before;
import org.junit.Test;
public class DiffFormatterReflowTest {
private RawText a;
private RawText b;
private FileHeader file;
private ByteArrayOutputStream out;
private DiffFormatter fmt;
@Before
public void setUp() throws Exception {
out = new ByteArrayOutputStream();
fmt = new DiffFormatter(out);
}
@Test
public void testNegativeContextFails() throws IOException {
init("X");
try {
fmt.setContext(-1);
fail("accepted negative context");
} catch (IllegalArgumentException e) {
// pass
}
}
@Test
public void testContext0() throws IOException {
init("X");
fmt.setContext(0);
assertFormatted();
}
@Test
public void testContext1() throws IOException {
init("X");
fmt.setContext(1);
assertFormatted();
}
@Test
public void testContext3() throws IOException {
init("X");
fmt.setContext(3);
assertFormatted();
}
@Test
public void testContext5() throws IOException {
init("X");
fmt.setContext(5);
assertFormatted();
}
@Test
public void testContext10() throws IOException {
init("X");
fmt.setContext(10);
assertFormatted();
}
@Test
public void testContext100() throws IOException {
init("X");
fmt.setContext(100);
assertFormatted();
}
@Test
public void testEmpty1() throws IOException {
init("E");
assertFormatted("E.patch");
}
@Test
public void testNoNewLine1() throws IOException {
init("Y");
assertFormatted("Y.patch");
}
@Test
public void testNoNewLine2() throws IOException {
init("Z");
assertFormatted("Z.patch");
}
private void init(String name) throws IOException {
a = new RawText(readFile(name + "_PreImage"));
b = new RawText(readFile(name + "_PostImage"));
file = parseTestPatchFile(name + ".patch").getFiles().get(0);
}
private void assertFormatted() throws IOException {
assertFormatted(JGitTestUtil.getName() + ".out");
}
private void assertFormatted(String name) throws IOException {
fmt.format(file, a, b);
final String exp = RawParseUtils.decode(readFile(name));
assertEquals(exp, RawParseUtils.decode(out.toByteArray()));
}
private byte[] readFile(String patchFile) throws IOException {
final InputStream in = getClass().getResourceAsStream(patchFile);
if (in == null) {
fail("No " + patchFile + " test vector");
return null; // Never happens
}
try {
final byte[] buf = new byte[1024];
final ByteArrayOutputStream temp = new ByteArrayOutputStream();
int n;
while ((n = in.read(buf)) > 0)
temp.write(buf, 0, n);
return temp.toByteArray();
} finally {
in.close();
}
}
private Patch parseTestPatchFile(String patchFile) throws IOException {
try (InputStream in = getClass().getResourceAsStream(patchFile)) {
if (in == null) {
fail("No " + patchFile + " test vector");
return null; // Never happens
}
final Patch p = new Patch();
p.parse(in);
return p;
}
}
}
|
