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
|
// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package com.google.protobuf;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.UnsupportedEncodingException;
import java.util.Arrays;
import java.util.Iterator;
/**
* This class tests {@link RopeByteString} by inheriting the tests from
* {@link LiteralByteStringTest}. Only a couple of methods are overridden.
*
* <p>A full test of the result of {@link RopeByteString#substring(int, int)} is found in the
* separate class {@link RopeByteStringSubstringTest}.
*
* @author carlanton@google.com (Carl Haverl)
*/
public class RopeByteStringTest extends LiteralByteStringTest {
@Override
protected void setUp() throws Exception {
classUnderTest = "RopeByteString";
referenceBytes = ByteStringTest.getTestBytes(22341, 22337766L);
Iterator<ByteString> iter = ByteStringTest.makeConcretePieces(referenceBytes).iterator();
stringUnderTest = iter.next();
while (iter.hasNext()) {
stringUnderTest = stringUnderTest.concat(iter.next());
}
expectedHashCode = -1214197238;
}
@Override
public void testGetTreeDepth() {
assertEquals(classUnderTest + " must have the expected tree depth",
4, stringUnderTest.getTreeDepth());
}
public void testBalance() {
int numberOfPieces = 10000;
int pieceSize = 64;
byte[] testBytes = ByteStringTest.getTestBytes(numberOfPieces * pieceSize, 113377L);
// Build up a big ByteString from smaller pieces to force a rebalance
ByteString concatenated = ByteString.EMPTY;
for (int i = 0; i < numberOfPieces; ++i) {
concatenated = concatenated.concat(ByteString.copyFrom(testBytes, i * pieceSize, pieceSize));
}
assertEquals(classUnderTest + " from string must have the expected type",
classUnderTest, getActualClassName(concatenated));
assertTrue(classUnderTest + " underlying bytes must match after balancing",
Arrays.equals(testBytes, concatenated.toByteArray()));
ByteString testString = ByteString.copyFrom(testBytes);
assertTrue(classUnderTest + " balanced string must equal flat string",
concatenated.equals(testString));
assertTrue(classUnderTest + " flat string must equal balanced string",
testString.equals(concatenated));
assertEquals(classUnderTest + " balanced string must have same hash code as flat string",
testString.hashCode(), concatenated.hashCode());
}
@Override
public void testToString() throws UnsupportedEncodingException {
String sourceString = "I love unicode \u1234\u5678 characters";
ByteString sourceByteString = ByteString.copyFromUtf8(sourceString);
int copies = 250;
// By building the RopeByteString by concatenating, this is actually a fairly strenuous test.
StringBuilder builder = new StringBuilder(copies * sourceString.length());
ByteString unicode = ByteString.EMPTY;
for (int i = 0; i < copies; ++i) {
builder.append(sourceString);
unicode = RopeByteString.concatenate(unicode, sourceByteString);
}
String testString = builder.toString();
assertEquals(classUnderTest + " from string must have the expected type",
classUnderTest, getActualClassName(unicode));
String roundTripString = unicode.toString(UTF_8);
assertEquals(classUnderTest + " unicode bytes must match",
testString, roundTripString);
ByteString flatString = ByteString.copyFromUtf8(testString);
assertEquals(classUnderTest + " string must equal the flat string", flatString, unicode);
assertEquals(classUnderTest + " string must must have same hashCode as the flat string",
flatString.hashCode(), unicode.hashCode());
}
@Override
public void testCharsetToString() {
String sourceString = "I love unicode \u1234\u5678 characters";
ByteString sourceByteString = ByteString.copyFromUtf8(sourceString);
int copies = 250;
// By building the RopeByteString by concatenating, this is actually a fairly strenuous test.
StringBuilder builder = new StringBuilder(copies * sourceString.length());
ByteString unicode = ByteString.EMPTY;
for (int i = 0; i < copies; ++i) {
builder.append(sourceString);
unicode = RopeByteString.concatenate(unicode, sourceByteString);
}
String testString = builder.toString();
assertEquals(classUnderTest + " from string must have the expected type",
classUnderTest, getActualClassName(unicode));
String roundTripString = unicode.toString(Internal.UTF_8);
assertEquals(classUnderTest + " unicode bytes must match",
testString, roundTripString);
ByteString flatString = ByteString.copyFromUtf8(testString);
assertEquals(classUnderTest + " string must equal the flat string", flatString, unicode);
assertEquals(classUnderTest + " string must must have same hashCode as the flat string",
flatString.hashCode(), unicode.hashCode());
}
@Override
public void testToString_returnsCanonicalEmptyString() {
RopeByteString ropeByteString =
RopeByteString.newInstanceForTest(ByteString.EMPTY, ByteString.EMPTY);
assertSame(classUnderTest + " must be the same string references",
ByteString.EMPTY.toString(Internal.UTF_8), ropeByteString.toString(Internal.UTF_8));
}
@Override
public void testToString_raisesException() {
try {
ByteString byteString =
RopeByteString.newInstanceForTest(ByteString.EMPTY, ByteString.EMPTY);
byteString.toString("invalid");
fail("Should have thrown an exception.");
} catch (UnsupportedEncodingException expected) {
// This is success
}
try {
ByteString byteString = RopeByteString.concatenate(ByteString.copyFromUtf8("foo"),
ByteString.copyFromUtf8("bar"));
byteString.toString("invalid");
fail("Should have thrown an exception.");
} catch (UnsupportedEncodingException expected) {
// This is success
}
}
@Override
public void testJavaSerialization() throws Exception {
ByteArrayOutputStream out = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(out);
oos.writeObject(stringUnderTest);
oos.close();
byte[] pickled = out.toByteArray();
InputStream in = new ByteArrayInputStream(pickled);
ObjectInputStream ois = new ObjectInputStream(in);
Object o = ois.readObject();
assertTrue("Didn't get a ByteString back", o instanceof ByteString);
assertEquals("Should get an equal ByteString back", stringUnderTest, o);
}
}
|
