henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 1 | /* |
| 2 | * libjingle |
| 3 | * Copyright 2004--2011, Google Inc. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions are met: |
| 7 | * |
| 8 | * 1. Redistributions of source code must retain the above copyright notice, |
| 9 | * this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| 11 | * this list of conditions and the following disclaimer in the documentation |
| 12 | * and/or other materials provided with the distribution. |
| 13 | * 3. The name of the author may not be used to endorse or promote products |
| 14 | * derived from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| 19 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 20 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 21 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| 22 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 23 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| 24 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| 25 | * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 | */ |
| 27 | |
| 28 | #include "talk/base/buffer.h" |
| 29 | #include "talk/base/gunit.h" |
| 30 | |
| 31 | namespace talk_base { |
| 32 | |
| 33 | static const char kTestData[] = { |
| 34 | 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF |
| 35 | }; |
| 36 | |
| 37 | TEST(BufferTest, TestConstructDefault) { |
| 38 | Buffer buf; |
| 39 | EXPECT_EQ(0U, buf.length()); |
| 40 | EXPECT_EQ(0U, buf.capacity()); |
| 41 | EXPECT_EQ(Buffer(), buf); |
| 42 | } |
| 43 | |
| 44 | TEST(BufferTest, TestConstructEmptyWithCapacity) { |
| 45 | Buffer buf(NULL, 0, 256U); |
| 46 | EXPECT_EQ(0U, buf.length()); |
| 47 | EXPECT_EQ(256U, buf.capacity()); |
| 48 | EXPECT_EQ(Buffer(), buf); |
| 49 | } |
| 50 | |
| 51 | TEST(BufferTest, TestConstructData) { |
| 52 | Buffer buf(kTestData, sizeof(kTestData)); |
| 53 | EXPECT_EQ(sizeof(kTestData), buf.length()); |
| 54 | EXPECT_EQ(sizeof(kTestData), buf.capacity()); |
| 55 | EXPECT_EQ(0, memcmp(buf.data(), kTestData, sizeof(kTestData))); |
| 56 | EXPECT_EQ(Buffer(kTestData, sizeof(kTestData)), buf); |
| 57 | } |
| 58 | |
| 59 | TEST(BufferTest, TestConstructDataWithCapacity) { |
| 60 | Buffer buf(kTestData, sizeof(kTestData), 256U); |
| 61 | EXPECT_EQ(sizeof(kTestData), buf.length()); |
| 62 | EXPECT_EQ(256U, buf.capacity()); |
| 63 | EXPECT_EQ(0, memcmp(buf.data(), kTestData, sizeof(kTestData))); |
| 64 | EXPECT_EQ(Buffer(kTestData, sizeof(kTestData)), buf); |
| 65 | } |
| 66 | |
| 67 | TEST(BufferTest, TestConstructCopy) { |
| 68 | Buffer buf1(kTestData, sizeof(kTestData), 256), buf2(buf1); |
| 69 | EXPECT_EQ(sizeof(kTestData), buf2.length()); |
| 70 | EXPECT_EQ(sizeof(kTestData), buf2.capacity()); // capacity isn't copied |
| 71 | EXPECT_EQ(0, memcmp(buf2.data(), kTestData, sizeof(kTestData))); |
| 72 | EXPECT_EQ(buf1, buf2); |
| 73 | } |
| 74 | |
| 75 | TEST(BufferTest, TestAssign) { |
| 76 | Buffer buf1, buf2(kTestData, sizeof(kTestData), 256); |
| 77 | EXPECT_NE(buf1, buf2); |
| 78 | buf1 = buf2; |
| 79 | EXPECT_EQ(sizeof(kTestData), buf1.length()); |
| 80 | EXPECT_EQ(sizeof(kTestData), buf1.capacity()); // capacity isn't copied |
| 81 | EXPECT_EQ(0, memcmp(buf1.data(), kTestData, sizeof(kTestData))); |
| 82 | EXPECT_EQ(buf1, buf2); |
| 83 | } |
| 84 | |
| 85 | TEST(BufferTest, TestSetData) { |
| 86 | Buffer buf; |
| 87 | buf.SetData(kTestData, sizeof(kTestData)); |
| 88 | EXPECT_EQ(sizeof(kTestData), buf.length()); |
| 89 | EXPECT_EQ(sizeof(kTestData), buf.capacity()); |
| 90 | EXPECT_EQ(0, memcmp(buf.data(), kTestData, sizeof(kTestData))); |
| 91 | } |
| 92 | |
| 93 | TEST(BufferTest, TestAppendData) { |
| 94 | Buffer buf(kTestData, sizeof(kTestData)); |
| 95 | buf.AppendData(kTestData, sizeof(kTestData)); |
| 96 | EXPECT_EQ(2 * sizeof(kTestData), buf.length()); |
| 97 | EXPECT_EQ(2 * sizeof(kTestData), buf.capacity()); |
| 98 | EXPECT_EQ(0, memcmp(buf.data(), kTestData, sizeof(kTestData))); |
| 99 | EXPECT_EQ(0, memcmp(buf.data() + sizeof(kTestData), |
| 100 | kTestData, sizeof(kTestData))); |
| 101 | } |
| 102 | |
| 103 | TEST(BufferTest, TestSetLengthSmaller) { |
| 104 | Buffer buf; |
| 105 | buf.SetData(kTestData, sizeof(kTestData)); |
| 106 | buf.SetLength(sizeof(kTestData) / 2); |
| 107 | EXPECT_EQ(sizeof(kTestData) / 2, buf.length()); |
| 108 | EXPECT_EQ(sizeof(kTestData), buf.capacity()); |
| 109 | EXPECT_EQ(0, memcmp(buf.data(), kTestData, sizeof(kTestData) / 2)); |
| 110 | } |
| 111 | |
| 112 | TEST(BufferTest, TestSetLengthLarger) { |
| 113 | Buffer buf; |
| 114 | buf.SetData(kTestData, sizeof(kTestData)); |
| 115 | buf.SetLength(sizeof(kTestData) * 2); |
| 116 | EXPECT_EQ(sizeof(kTestData) * 2, buf.length()); |
| 117 | EXPECT_EQ(sizeof(kTestData) * 2, buf.capacity()); |
| 118 | EXPECT_EQ(0, memcmp(buf.data(), kTestData, sizeof(kTestData))); |
| 119 | } |
| 120 | |
| 121 | TEST(BufferTest, TestSetCapacitySmaller) { |
| 122 | Buffer buf; |
| 123 | buf.SetData(kTestData, sizeof(kTestData)); |
| 124 | buf.SetCapacity(sizeof(kTestData) / 2); // should be ignored |
| 125 | EXPECT_EQ(sizeof(kTestData), buf.length()); |
| 126 | EXPECT_EQ(sizeof(kTestData), buf.capacity()); |
| 127 | EXPECT_EQ(0, memcmp(buf.data(), kTestData, sizeof(kTestData))); |
| 128 | } |
| 129 | |
| 130 | TEST(BufferTest, TestSetCapacityLarger) { |
| 131 | Buffer buf(kTestData, sizeof(kTestData)); |
| 132 | buf.SetCapacity(sizeof(kTestData) * 2); |
| 133 | EXPECT_EQ(sizeof(kTestData), buf.length()); |
| 134 | EXPECT_EQ(sizeof(kTestData) * 2, buf.capacity()); |
| 135 | EXPECT_EQ(0, memcmp(buf.data(), kTestData, sizeof(kTestData))); |
| 136 | } |
| 137 | |
| 138 | TEST(BufferTest, TestSetCapacityThenSetLength) { |
| 139 | Buffer buf(kTestData, sizeof(kTestData)); |
| 140 | buf.SetCapacity(sizeof(kTestData) * 4); |
| 141 | memcpy(buf.data() + sizeof(kTestData), kTestData, sizeof(kTestData)); |
| 142 | buf.SetLength(sizeof(kTestData) * 2); |
| 143 | EXPECT_EQ(sizeof(kTestData) * 2, buf.length()); |
| 144 | EXPECT_EQ(sizeof(kTestData) * 4, buf.capacity()); |
| 145 | EXPECT_EQ(0, memcmp(buf.data(), kTestData, sizeof(kTestData))); |
| 146 | EXPECT_EQ(0, memcmp(buf.data() + sizeof(kTestData), |
| 147 | kTestData, sizeof(kTestData))); |
| 148 | } |
| 149 | |
| 150 | TEST(BufferTest, TestTransfer) { |
| 151 | Buffer buf1(kTestData, sizeof(kTestData), 256U), buf2; |
| 152 | buf1.TransferTo(&buf2); |
| 153 | EXPECT_EQ(0U, buf1.length()); |
| 154 | EXPECT_EQ(0U, buf1.capacity()); |
| 155 | EXPECT_EQ(sizeof(kTestData), buf2.length()); |
| 156 | EXPECT_EQ(256U, buf2.capacity()); // capacity does transfer |
| 157 | EXPECT_EQ(0, memcmp(buf2.data(), kTestData, sizeof(kTestData))); |
| 158 | } |
| 159 | |
| 160 | } // namespace talk_base |