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
|
// Copyright 2006-2015 Google Inc. All Rights Reserved.
//
// 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 com.google.devtools.build.lib.syntax;
import static com.google.devtools.build.lib.util.StringUtilities.joinLines;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
import com.google.devtools.build.lib.vfs.Path;
import com.google.devtools.build.lib.vfs.util.FsApparatus;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
/**
* A test case for {@link ParserInputSource}.
*/
@RunWith(JUnit4.class)
public class ParserInputSourceTest {
private FsApparatus scratch = FsApparatus.newInMemory();
@Test
public void testCreateFromFile() throws IOException {
String content = joinLines("Line 1", "Line 2", "Line 3", "");
Path file = scratch.file("/tmp/my/file.txt", content);
ParserInputSource input = ParserInputSource.create(file);
assertEquals(content, new String(input.getContent()));
assertEquals("/tmp/my/file.txt", input.getPath().toString());
}
@Test
public void testCreateFromString() {
String content = "Content provided as a string.";
String pathName = "/the/name/of/the/content.txt";
Path path = scratch.path(pathName);
ParserInputSource input = ParserInputSource.create(content, path);
assertEquals(content, new String(input.getContent()));
assertEquals(pathName, input.getPath().toString());
}
@Test
public void testCreateFromCharArray() {
String content = "Content provided as a string.";
String pathName = "/the/name/of/the/content.txt";
Path path = scratch.path(pathName);
char[] contentChars = content.toCharArray();
ParserInputSource input = ParserInputSource.create(contentChars, path);
assertEquals(content, new String(input.getContent()));
assertEquals(pathName, input.getPath().toString());
}
@Test
public void testCreateFromInputStream() throws IOException {
String content = "Content provided as a string.";
byte[] bytes = content.getBytes("ISO-8859-1");
ByteArrayInputStream in = new ByteArrayInputStream(bytes);
String pathName = "/the/name/of/the/content.txt";
Path path = scratch.path(pathName);
ParserInputSource input = ParserInputSource.create(in, path);
assertEquals(content, new String(input.getContent()));
assertEquals(pathName, input.getPath().toString());
}
@Test
public void testIOExceptionIfInputFileDoesNotExistForSingleArgConstructor() {
try {
Path path = scratch.path("/does/not/exist");
ParserInputSource.create(path);
fail();
} catch (IOException e) {
String expected = "/does/not/exist (No such file or directory)";
assertEquals(expected, e.getMessage());
}
}
@Test
public void testWillNotTryToReadInputFileIfContentProvidedAsString() {
Path path = scratch.path("/will/not/try/to/read");
ParserInputSource.create("Content provided as string.", path);
}
@Test
public void testWillNotTryToReadInputFileIfContentProvidedAsChars() {
Path path = scratch.path("/will/not/try/to/read");
char[] content = "Content provided as char array.".toCharArray();
ParserInputSource.create(content, path);
}
@Test
public void testWillCloseStreamWhenReadingFromInputStream() {
final StringBuilder log = new StringBuilder();
InputStream in = new InputStream() {
@Override
public int read() throws IOException {
throw new IOException("Fault injected.");
}
@Override
public void close() {
log.append("Stream closed.");
}
};
try {
Path path = scratch.path("/will/not/try/to/read");
ParserInputSource.create(in, path);
fail();
} catch (IOException e) {
assertEquals("Fault injected.", e.getMessage());
}
assertEquals("Stream closed.", log.toString());
}
}
|
