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| 1 /* |
| 2 * Copyright (C) 2013, Opera Software ASA. All rights reserved. |
| 3 * |
| 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions are |
| 6 * met: |
| 7 * |
| 8 * * Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. |
| 10 * * Redistributions in binary form must reproduce the above |
| 11 * copyright notice, this list of conditions and the following disclaimer |
| 12 * in the documentation and/or other materials provided with the |
| 13 * distribution. |
| 14 * * Neither the name of Google Inc. nor the names of its |
| 15 * contributors may be used to endorse or promote products derived from |
| 16 * this software without specific prior written permission. |
| 17 * |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 29 */ |
| 30 |
| 31 #include "config.h" |
| 32 #include "core/html/track/BufferedLineReader.h" |
| 33 |
| 34 #include "wtf/text/CString.h" |
| 35 #include "wtf/text/WTFString.h" |
| 36 #include "wtf/unicode/CharacterNames.h" |
| 37 |
| 38 #include <gtest/gtest.h> |
| 39 |
| 40 using WebCore::BufferedLineReader; |
| 41 |
| 42 namespace { |
| 43 |
| 44 TEST(BufferedLineReader, Constructor) |
| 45 { |
| 46 BufferedLineReader reader; |
| 47 ASSERT_FALSE(reader.isAtEndOfStream()); |
| 48 String line; |
| 49 ASSERT_FALSE(reader.getLine(line)); |
| 50 } |
| 51 |
| 52 TEST(BufferedLineReader, EOSNoInput) |
| 53 { |
| 54 BufferedLineReader reader; |
| 55 String line; |
| 56 ASSERT_FALSE(reader.getLine(line)); |
| 57 reader.setEndOfStream(); |
| 58 // No input observed, so still no line. |
| 59 ASSERT_FALSE(reader.getLine(line)); |
| 60 } |
| 61 |
| 62 TEST(BufferedLineReader, EOSInput) |
| 63 { |
| 64 BufferedLineReader reader; |
| 65 reader.append("A"); |
| 66 reader.setEndOfStream(); |
| 67 String line; |
| 68 ASSERT_TRUE(reader.getLine(line)); |
| 69 ASSERT_EQ(line, "A"); |
| 70 } |
| 71 |
| 72 TEST(BufferedLineReader, EOSMultipleReads_1) |
| 73 { |
| 74 BufferedLineReader reader; |
| 75 reader.append("A"); |
| 76 reader.setEndOfStream(); |
| 77 String line; |
| 78 ASSERT_TRUE(reader.getLine(line)); |
| 79 ASSERT_EQ(line, "A"); |
| 80 // No more lines returned. |
| 81 ASSERT_FALSE(reader.getLine(line)); |
| 82 ASSERT_FALSE(reader.getLine(line)); |
| 83 } |
| 84 |
| 85 TEST(BufferedLineReader, EOSMultipleReads_2) |
| 86 { |
| 87 BufferedLineReader reader; |
| 88 reader.append("A\n"); |
| 89 reader.setEndOfStream(); |
| 90 String line; |
| 91 ASSERT_TRUE(reader.getLine(line)); |
| 92 ASSERT_EQ(line, "A"); |
| 93 // No more lines returned. |
| 94 ASSERT_FALSE(reader.getLine(line)); |
| 95 ASSERT_FALSE(reader.getLine(line)); |
| 96 } |
| 97 |
| 98 TEST(BufferedLineReader, LineEndingCR) |
| 99 { |
| 100 BufferedLineReader reader; |
| 101 reader.append("X\rY"); |
| 102 reader.setEndOfStream(); |
| 103 String line; |
| 104 ASSERT_TRUE(reader.getLine(line)); |
| 105 ASSERT_EQ(line, "X"); |
| 106 ASSERT_TRUE(reader.getLine(line)); |
| 107 ASSERT_EQ(line, "Y"); |
| 108 } |
| 109 |
| 110 TEST(BufferedLineReader, LineEndingCR_EOS) |
| 111 { |
| 112 BufferedLineReader reader; |
| 113 reader.append("X\r"); |
| 114 reader.setEndOfStream(); |
| 115 String line; |
| 116 ASSERT_TRUE(reader.getLine(line)); |
| 117 ASSERT_EQ(line, "X"); |
| 118 ASSERT_FALSE(reader.getLine(line)); |
| 119 } |
| 120 |
| 121 TEST(BufferedLineReader, LineEndingLF) |
| 122 { |
| 123 BufferedLineReader reader; |
| 124 reader.append("X\nY"); |
| 125 reader.setEndOfStream(); |
| 126 String line; |
| 127 ASSERT_TRUE(reader.getLine(line)); |
| 128 ASSERT_EQ(line, "X"); |
| 129 ASSERT_TRUE(reader.getLine(line)); |
| 130 ASSERT_EQ(line, "Y"); |
| 131 } |
| 132 |
| 133 TEST(BufferedLineReader, LineEndingLF_EOS) |
| 134 { |
| 135 BufferedLineReader reader; |
| 136 reader.append("X\n"); |
| 137 reader.setEndOfStream(); |
| 138 String line; |
| 139 ASSERT_TRUE(reader.getLine(line)); |
| 140 ASSERT_EQ(line, "X"); |
| 141 ASSERT_FALSE(reader.getLine(line)); |
| 142 } |
| 143 |
| 144 TEST(BufferedLineReader, LineEndingCRLF) |
| 145 { |
| 146 BufferedLineReader reader; |
| 147 reader.append("X\r\nY"); |
| 148 reader.setEndOfStream(); |
| 149 String line; |
| 150 ASSERT_TRUE(reader.getLine(line)); |
| 151 ASSERT_EQ(line, "X"); |
| 152 ASSERT_TRUE(reader.getLine(line)); |
| 153 ASSERT_EQ(line, "Y"); |
| 154 } |
| 155 |
| 156 TEST(BufferedLineReader, LineEndingCRLF_EOS) |
| 157 { |
| 158 BufferedLineReader reader; |
| 159 reader.append("X\r\n"); |
| 160 reader.setEndOfStream(); |
| 161 String line; |
| 162 ASSERT_TRUE(reader.getLine(line)); |
| 163 ASSERT_EQ(line, "X"); |
| 164 ASSERT_FALSE(reader.getLine(line)); |
| 165 } |
| 166 |
| 167 enum LineBreakType { |
| 168 Cr, |
| 169 Lf, |
| 170 CrLf |
| 171 }; |
| 172 |
| 173 String LineBreakString(LineBreakType type) |
| 174 { |
| 175 static const char breakStrings[] = "\r\n"; |
| 176 return String(type == Lf ? breakStrings + 1 : breakStrings, type == CrLf ? 2
: 1); |
| 177 } |
| 178 |
| 179 String MakeTestData(const char** lines, const LineBreakType* breaks, int count) |
| 180 { |
| 181 StringBuilder builder; |
| 182 for (int i = 0; i < count; ++i) { |
| 183 builder.append(lines[i]); |
| 184 builder.append(LineBreakString(breaks[i])); |
| 185 } |
| 186 return builder.toString(); |
| 187 } |
| 188 |
| 189 const size_t blockSizes[] = { 64, 32, 16, 8, 4, 2, 1, 3, 5, 7, 9, 11, 13, 17, 19
, 23 }; |
| 190 |
| 191 TEST(BufferedLineReader, BufferSizes) |
| 192 { |
| 193 const char* lines[] = { |
| 194 "aaaaaaaaaaaaaaaa", |
| 195 "bbbbbbbbbb", |
| 196 "ccccccccccccc", |
| 197 "", |
| 198 "dddddd", |
| 199 "", |
| 200 "eeeeeeeeee" |
| 201 }; |
| 202 const LineBreakType breaks[] = { Lf, Lf, Lf, Lf, Lf, Lf, Lf }; |
| 203 const size_t numTestLines = WTF_ARRAY_LENGTH(lines); |
| 204 COMPILE_ASSERT(numTestLines == WTF_ARRAY_LENGTH(breaks), DifferentLengths_li
nes_and_breaks); |
| 205 String data = MakeTestData(lines, breaks, numTestLines); |
| 206 |
| 207 for (size_t k = 0; k < WTF_ARRAY_LENGTH(blockSizes); ++k) { |
| 208 size_t lineCount = 0; |
| 209 BufferedLineReader reader; |
| 210 size_t blockSize = blockSizes[k]; |
| 211 for (size_t i = 0; i < data.length(); i += blockSize) { |
| 212 reader.append(data.substring(i, blockSize)); |
| 213 |
| 214 String line; |
| 215 while (reader.getLine(line)) { |
| 216 ASSERT_LT(lineCount, numTestLines); |
| 217 ASSERT_EQ(line, lines[lineCount++]); |
| 218 } |
| 219 } |
| 220 ASSERT_EQ(lineCount, numTestLines); |
| 221 } |
| 222 } |
| 223 |
| 224 TEST(BufferedLineReader, BufferSizesMixedEndings) |
| 225 { |
| 226 const char* lines[] = { |
| 227 "aaaaaaaaaaaaaaaa", |
| 228 "bbbbbbbbbb", |
| 229 "ccccccccccccc", |
| 230 "", |
| 231 "dddddd", |
| 232 "eeeeeeeeee", |
| 233 "fffffffffffffffffff" |
| 234 }; |
| 235 const LineBreakType breaks[] = { Cr, Lf, CrLf, Cr, Lf, CrLf, Lf }; |
| 236 const size_t numTestLines = WTF_ARRAY_LENGTH(lines); |
| 237 COMPILE_ASSERT(numTestLines == WTF_ARRAY_LENGTH(breaks), DifferentLengths_li
nes_and_breaks); |
| 238 String data = MakeTestData(lines, breaks, numTestLines); |
| 239 |
| 240 for (size_t k = 0; k < WTF_ARRAY_LENGTH(blockSizes); ++k) { |
| 241 size_t lineCount = 0; |
| 242 BufferedLineReader reader; |
| 243 size_t blockSize = blockSizes[k]; |
| 244 for (size_t i = 0; i < data.length(); i += blockSize) { |
| 245 reader.append(data.substring(i, blockSize)); |
| 246 |
| 247 String line; |
| 248 while (reader.getLine(line)) { |
| 249 ASSERT_LT(lineCount, numTestLines); |
| 250 ASSERT_EQ(line, lines[lineCount++]); |
| 251 } |
| 252 } |
| 253 ASSERT_EQ(lineCount, numTestLines); |
| 254 } |
| 255 } |
| 256 |
| 257 TEST(BufferedLineReader, BufferBoundaryInCRLF_1) |
| 258 { |
| 259 BufferedLineReader reader; |
| 260 reader.append("X\r"); |
| 261 String line; |
| 262 ASSERT_TRUE(reader.getLine(line)); |
| 263 ASSERT_EQ(line, "X"); |
| 264 reader.append("\n"); |
| 265 ASSERT_FALSE(reader.getLine(line)); |
| 266 } |
| 267 |
| 268 TEST(BufferedLineReader, BufferBoundaryInCRLF_2) |
| 269 { |
| 270 BufferedLineReader reader; |
| 271 reader.append("X\r"); |
| 272 String line; |
| 273 ASSERT_TRUE(reader.getLine(line)); |
| 274 ASSERT_EQ(line, "X"); |
| 275 ASSERT_FALSE(reader.getLine(line)); |
| 276 reader.append("\n"); |
| 277 ASSERT_FALSE(reader.getLine(line)); |
| 278 reader.append("Y\n"); |
| 279 ASSERT_TRUE(reader.getLine(line)); |
| 280 ASSERT_EQ(line, "Y"); |
| 281 } |
| 282 |
| 283 TEST(BufferedLineReader, NormalizedNUL) |
| 284 { |
| 285 BufferedLineReader reader; |
| 286 reader.append(String("X\0Y\n", 4)); |
| 287 String line; |
| 288 ASSERT_TRUE(reader.getLine(line)); |
| 289 ASSERT_EQ(line[1], WTF::Unicode::replacementCharacter); |
| 290 } |
| 291 |
| 292 } // namespace |
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