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/gunit.h" |
| 29 | #include "talk/base/stream.h" |
| 30 | |
| 31 | namespace talk_base { |
| 32 | |
| 33 | /////////////////////////////////////////////////////////////////////////////// |
| 34 | // TestStream |
| 35 | /////////////////////////////////////////////////////////////////////////////// |
| 36 | |
| 37 | class TestStream : public StreamInterface { |
| 38 | public: |
| 39 | TestStream() : pos_(0) { } |
| 40 | |
| 41 | virtual StreamState GetState() const { return SS_OPEN; } |
| 42 | virtual StreamResult Read(void* buffer, size_t buffer_len, |
| 43 | size_t* read, int* error) { |
| 44 | unsigned char* uc_buffer = static_cast<unsigned char*>(buffer); |
| 45 | for (size_t i = 0; i < buffer_len; ++i) { |
| 46 | uc_buffer[i] = static_cast<unsigned char>(pos_++); |
| 47 | } |
| 48 | if (read) |
| 49 | *read = buffer_len; |
| 50 | return SR_SUCCESS; |
| 51 | } |
| 52 | virtual StreamResult Write(const void* data, size_t data_len, |
| 53 | size_t* written, int* error) { |
| 54 | if (error) |
| 55 | *error = -1; |
| 56 | return SR_ERROR; |
| 57 | } |
| 58 | virtual void Close() { } |
| 59 | virtual bool SetPosition(size_t position) { |
| 60 | pos_ = position; |
| 61 | return true; |
| 62 | } |
| 63 | virtual bool GetPosition(size_t* position) const { |
| 64 | if (position) *position = pos_; |
| 65 | return true; |
| 66 | } |
| 67 | virtual bool GetSize(size_t* size) const { |
| 68 | return false; |
| 69 | } |
| 70 | virtual bool GetAvailable(size_t* size) const { |
| 71 | return false; |
| 72 | } |
| 73 | |
| 74 | private: |
| 75 | size_t pos_; |
| 76 | }; |
| 77 | |
| 78 | bool VerifyTestBuffer(unsigned char* buffer, size_t len, |
| 79 | unsigned char value) { |
| 80 | bool passed = true; |
| 81 | for (size_t i = 0; i < len; ++i) { |
| 82 | if (buffer[i] != value++) { |
| 83 | passed = false; |
| 84 | break; |
| 85 | } |
| 86 | } |
| 87 | // Ensure that we don't pass again without re-writing |
| 88 | memset(buffer, 0, len); |
| 89 | return passed; |
| 90 | } |
| 91 | |
| 92 | void SeekTest(StreamInterface* stream, const unsigned char value) { |
| 93 | size_t bytes; |
| 94 | unsigned char buffer[13] = { 0 }; |
| 95 | const size_t kBufSize = sizeof(buffer); |
| 96 | |
| 97 | EXPECT_EQ(stream->Read(buffer, kBufSize, &bytes, NULL), SR_SUCCESS); |
| 98 | EXPECT_EQ(bytes, kBufSize); |
| 99 | EXPECT_TRUE(VerifyTestBuffer(buffer, kBufSize, value)); |
| 100 | EXPECT_TRUE(stream->GetPosition(&bytes)); |
| 101 | EXPECT_EQ(13U, bytes); |
| 102 | |
| 103 | EXPECT_TRUE(stream->SetPosition(7)); |
| 104 | |
| 105 | EXPECT_EQ(stream->Read(buffer, kBufSize, &bytes, NULL), SR_SUCCESS); |
| 106 | EXPECT_EQ(bytes, kBufSize); |
| 107 | EXPECT_TRUE(VerifyTestBuffer(buffer, kBufSize, value + 7)); |
| 108 | EXPECT_TRUE(stream->GetPosition(&bytes)); |
| 109 | EXPECT_EQ(20U, bytes); |
| 110 | } |
| 111 | |
| 112 | TEST(StreamSegment, TranslatesPosition) { |
| 113 | TestStream* test = new TestStream; |
| 114 | // Verify behavior of original stream |
| 115 | SeekTest(test, 0); |
| 116 | StreamSegment* segment = new StreamSegment(test); |
| 117 | // Verify behavior of adapted stream (all values offset by 20) |
| 118 | SeekTest(segment, 20); |
| 119 | delete segment; |
| 120 | } |
| 121 | |
| 122 | TEST(StreamSegment, SupportsArtificialTermination) { |
| 123 | TestStream* test = new TestStream; |
| 124 | |
| 125 | size_t bytes; |
| 126 | unsigned char buffer[5000] = { 0 }; |
| 127 | const size_t kBufSize = sizeof(buffer); |
| 128 | |
| 129 | { |
| 130 | StreamInterface* stream = test; |
| 131 | |
| 132 | // Read a lot of bytes |
| 133 | EXPECT_EQ(stream->Read(buffer, kBufSize, &bytes, NULL), SR_SUCCESS); |
| 134 | EXPECT_EQ(bytes, kBufSize); |
| 135 | EXPECT_TRUE(VerifyTestBuffer(buffer, kBufSize, 0)); |
| 136 | |
| 137 | // Test seeking far ahead |
| 138 | EXPECT_TRUE(stream->SetPosition(12345)); |
| 139 | |
| 140 | // Read a bunch more bytes |
| 141 | EXPECT_EQ(stream->Read(buffer, kBufSize, &bytes, NULL), SR_SUCCESS); |
| 142 | EXPECT_EQ(bytes, kBufSize); |
| 143 | EXPECT_TRUE(VerifyTestBuffer(buffer, kBufSize, 12345 % 256)); |
| 144 | } |
| 145 | |
| 146 | // Create a segment of test stream in range [100,600) |
| 147 | EXPECT_TRUE(test->SetPosition(100)); |
| 148 | StreamSegment* segment = new StreamSegment(test, 500); |
| 149 | |
| 150 | { |
| 151 | StreamInterface* stream = segment; |
| 152 | |
| 153 | EXPECT_EQ(stream->Read(buffer, kBufSize, &bytes, NULL), SR_SUCCESS); |
| 154 | EXPECT_EQ(500U, bytes); |
| 155 | EXPECT_TRUE(VerifyTestBuffer(buffer, 500, 100)); |
| 156 | EXPECT_EQ(stream->Read(buffer, kBufSize, &bytes, NULL), SR_EOS); |
| 157 | |
| 158 | // Test seeking past "end" of stream |
| 159 | EXPECT_FALSE(stream->SetPosition(12345)); |
| 160 | EXPECT_FALSE(stream->SetPosition(501)); |
| 161 | |
| 162 | // Test seeking to end (edge case) |
| 163 | EXPECT_TRUE(stream->SetPosition(500)); |
| 164 | EXPECT_EQ(stream->Read(buffer, kBufSize, &bytes, NULL), SR_EOS); |
| 165 | |
| 166 | // Test seeking to start |
| 167 | EXPECT_TRUE(stream->SetPosition(0)); |
| 168 | EXPECT_EQ(stream->Read(buffer, kBufSize, &bytes, NULL), SR_SUCCESS); |
| 169 | EXPECT_EQ(500U, bytes); |
| 170 | EXPECT_TRUE(VerifyTestBuffer(buffer, 500, 100)); |
| 171 | EXPECT_EQ(stream->Read(buffer, kBufSize, &bytes, NULL), SR_EOS); |
| 172 | } |
| 173 | |
| 174 | delete segment; |
| 175 | } |
| 176 | |
| 177 | TEST(FifoBufferTest, TestAll) { |
| 178 | const size_t kSize = 16; |
| 179 | const char in[kSize * 2 + 1] = "0123456789ABCDEFGHIJKLMNOPQRSTUV"; |
| 180 | char out[kSize * 2]; |
| 181 | void* p; |
| 182 | const void* q; |
| 183 | size_t bytes; |
| 184 | FifoBuffer buf(kSize); |
| 185 | StreamInterface* stream = &buf; |
| 186 | |
| 187 | // Test assumptions about base state |
| 188 | EXPECT_EQ(SS_OPEN, stream->GetState()); |
| 189 | EXPECT_EQ(SR_BLOCK, stream->Read(out, kSize, &bytes, NULL)); |
| 190 | EXPECT_TRUE(NULL != stream->GetReadData(&bytes)); |
| 191 | EXPECT_EQ((size_t)0, bytes); |
| 192 | stream->ConsumeReadData(0); |
| 193 | EXPECT_TRUE(NULL != stream->GetWriteBuffer(&bytes)); |
| 194 | EXPECT_EQ(kSize, bytes); |
| 195 | stream->ConsumeWriteBuffer(0); |
| 196 | |
| 197 | // Try a full write |
| 198 | EXPECT_EQ(SR_SUCCESS, stream->Write(in, kSize, &bytes, NULL)); |
| 199 | EXPECT_EQ(kSize, bytes); |
| 200 | |
| 201 | // Try a write that should block |
| 202 | EXPECT_EQ(SR_BLOCK, stream->Write(in, kSize, &bytes, NULL)); |
| 203 | |
| 204 | // Try a full read |
| 205 | EXPECT_EQ(SR_SUCCESS, stream->Read(out, kSize, &bytes, NULL)); |
| 206 | EXPECT_EQ(kSize, bytes); |
| 207 | EXPECT_EQ(0, memcmp(in, out, kSize)); |
| 208 | |
| 209 | // Try a read that should block |
| 210 | EXPECT_EQ(SR_BLOCK, stream->Read(out, kSize, &bytes, NULL)); |
| 211 | |
| 212 | // Try a too-big write |
| 213 | EXPECT_EQ(SR_SUCCESS, stream->Write(in, kSize * 2, &bytes, NULL)); |
| 214 | EXPECT_EQ(bytes, kSize); |
| 215 | |
| 216 | // Try a too-big read |
| 217 | EXPECT_EQ(SR_SUCCESS, stream->Read(out, kSize * 2, &bytes, NULL)); |
| 218 | EXPECT_EQ(kSize, bytes); |
| 219 | EXPECT_EQ(0, memcmp(in, out, kSize)); |
| 220 | |
| 221 | // Try some small writes and reads |
| 222 | EXPECT_EQ(SR_SUCCESS, stream->Write(in, kSize / 2, &bytes, NULL)); |
| 223 | EXPECT_EQ(kSize / 2, bytes); |
| 224 | EXPECT_EQ(SR_SUCCESS, stream->Read(out, kSize / 2, &bytes, NULL)); |
| 225 | EXPECT_EQ(kSize / 2, bytes); |
| 226 | EXPECT_EQ(0, memcmp(in, out, kSize / 2)); |
| 227 | EXPECT_EQ(SR_SUCCESS, stream->Write(in, kSize / 2, &bytes, NULL)); |
| 228 | EXPECT_EQ(kSize / 2, bytes); |
| 229 | EXPECT_EQ(SR_SUCCESS, stream->Write(in, kSize / 2, &bytes, NULL)); |
| 230 | EXPECT_EQ(kSize / 2, bytes); |
| 231 | EXPECT_EQ(SR_SUCCESS, stream->Read(out, kSize / 2, &bytes, NULL)); |
| 232 | EXPECT_EQ(kSize / 2, bytes); |
| 233 | EXPECT_EQ(0, memcmp(in, out, kSize / 2)); |
| 234 | EXPECT_EQ(SR_SUCCESS, stream->Read(out, kSize / 2, &bytes, NULL)); |
| 235 | EXPECT_EQ(kSize / 2, bytes); |
| 236 | EXPECT_EQ(0, memcmp(in, out, kSize / 2)); |
| 237 | |
| 238 | // Try wraparound reads and writes in the following pattern |
| 239 | // WWWWWWWWWWWW.... 0123456789AB.... |
| 240 | // RRRRRRRRXXXX.... ........89AB.... |
| 241 | // WWWW....XXXXWWWW 4567....89AB0123 |
| 242 | // XXXX....RRRRXXXX 4567........0123 |
| 243 | // XXXXWWWWWWWWXXXX 4567012345670123 |
| 244 | // RRRRXXXXXXXXRRRR ....01234567.... |
| 245 | // ....RRRRRRRR.... ................ |
| 246 | EXPECT_EQ(SR_SUCCESS, stream->Write(in, kSize * 3 / 4, &bytes, NULL)); |
| 247 | EXPECT_EQ(kSize * 3 / 4, bytes); |
| 248 | EXPECT_EQ(SR_SUCCESS, stream->Read(out, kSize / 2, &bytes, NULL)); |
| 249 | EXPECT_EQ(kSize / 2, bytes); |
| 250 | EXPECT_EQ(0, memcmp(in, out, kSize / 2)); |
| 251 | EXPECT_EQ(SR_SUCCESS, stream->Write(in, kSize / 2, &bytes, NULL)); |
| 252 | EXPECT_EQ(kSize / 2, bytes); |
| 253 | EXPECT_EQ(SR_SUCCESS, stream->Read(out, kSize / 4, &bytes, NULL)); |
| 254 | EXPECT_EQ(kSize / 4 , bytes); |
| 255 | EXPECT_EQ(0, memcmp(in + kSize / 2, out, kSize / 4)); |
| 256 | EXPECT_EQ(SR_SUCCESS, stream->Write(in, kSize / 2, &bytes, NULL)); |
| 257 | EXPECT_EQ(kSize / 2, bytes); |
| 258 | EXPECT_EQ(SR_SUCCESS, stream->Read(out, kSize / 2, &bytes, NULL)); |
| 259 | EXPECT_EQ(kSize / 2 , bytes); |
| 260 | EXPECT_EQ(0, memcmp(in, out, kSize / 2)); |
| 261 | EXPECT_EQ(SR_SUCCESS, stream->Read(out, kSize / 2, &bytes, NULL)); |
| 262 | EXPECT_EQ(kSize / 2 , bytes); |
| 263 | EXPECT_EQ(0, memcmp(in, out, kSize / 2)); |
| 264 | |
| 265 | // Use GetWriteBuffer to reset the read_position for the next tests |
| 266 | stream->GetWriteBuffer(&bytes); |
| 267 | stream->ConsumeWriteBuffer(0); |
| 268 | |
| 269 | // Try using GetReadData to do a full read |
| 270 | EXPECT_EQ(SR_SUCCESS, stream->Write(in, kSize, &bytes, NULL)); |
| 271 | q = stream->GetReadData(&bytes); |
| 272 | EXPECT_TRUE(NULL != q); |
| 273 | EXPECT_EQ(kSize, bytes); |
| 274 | EXPECT_EQ(0, memcmp(q, in, kSize)); |
| 275 | stream->ConsumeReadData(kSize); |
| 276 | EXPECT_EQ(SR_BLOCK, stream->Read(out, kSize, &bytes, NULL)); |
| 277 | |
| 278 | // Try using GetReadData to do some small reads |
| 279 | EXPECT_EQ(SR_SUCCESS, stream->Write(in, kSize, &bytes, NULL)); |
| 280 | q = stream->GetReadData(&bytes); |
| 281 | EXPECT_TRUE(NULL != q); |
| 282 | EXPECT_EQ(kSize, bytes); |
| 283 | EXPECT_EQ(0, memcmp(q, in, kSize / 2)); |
| 284 | stream->ConsumeReadData(kSize / 2); |
| 285 | q = stream->GetReadData(&bytes); |
| 286 | EXPECT_TRUE(NULL != q); |
| 287 | EXPECT_EQ(kSize / 2, bytes); |
| 288 | EXPECT_EQ(0, memcmp(q, in + kSize / 2, kSize / 2)); |
| 289 | stream->ConsumeReadData(kSize / 2); |
| 290 | EXPECT_EQ(SR_BLOCK, stream->Read(out, kSize, &bytes, NULL)); |
| 291 | |
| 292 | // Try using GetReadData in a wraparound case |
| 293 | // WWWWWWWWWWWWWWWW 0123456789ABCDEF |
| 294 | // RRRRRRRRRRRRXXXX ............CDEF |
| 295 | // WWWWWWWW....XXXX 01234567....CDEF |
| 296 | // ............RRRR 01234567........ |
| 297 | // RRRRRRRR........ ................ |
| 298 | EXPECT_EQ(SR_SUCCESS, stream->Write(in, kSize, &bytes, NULL)); |
| 299 | EXPECT_EQ(SR_SUCCESS, stream->Read(out, kSize * 3 / 4, &bytes, NULL)); |
| 300 | EXPECT_EQ(SR_SUCCESS, stream->Write(in, kSize / 2, &bytes, NULL)); |
| 301 | q = stream->GetReadData(&bytes); |
| 302 | EXPECT_TRUE(NULL != q); |
| 303 | EXPECT_EQ(kSize / 4, bytes); |
| 304 | EXPECT_EQ(0, memcmp(q, in + kSize * 3 / 4, kSize / 4)); |
| 305 | stream->ConsumeReadData(kSize / 4); |
| 306 | q = stream->GetReadData(&bytes); |
| 307 | EXPECT_TRUE(NULL != q); |
| 308 | EXPECT_EQ(kSize / 2, bytes); |
| 309 | EXPECT_EQ(0, memcmp(q, in, kSize / 2)); |
| 310 | stream->ConsumeReadData(kSize / 2); |
| 311 | |
| 312 | // Use GetWriteBuffer to reset the read_position for the next tests |
| 313 | stream->GetWriteBuffer(&bytes); |
| 314 | stream->ConsumeWriteBuffer(0); |
| 315 | |
| 316 | // Try using GetWriteBuffer to do a full write |
| 317 | p = stream->GetWriteBuffer(&bytes); |
| 318 | EXPECT_TRUE(NULL != p); |
| 319 | EXPECT_EQ(kSize, bytes); |
| 320 | memcpy(p, in, kSize); |
| 321 | stream->ConsumeWriteBuffer(kSize); |
| 322 | EXPECT_EQ(SR_SUCCESS, stream->Read(out, kSize, &bytes, NULL)); |
| 323 | EXPECT_EQ(kSize, bytes); |
| 324 | EXPECT_EQ(0, memcmp(in, out, kSize)); |
| 325 | |
| 326 | // Try using GetWriteBuffer to do some small writes |
| 327 | p = stream->GetWriteBuffer(&bytes); |
| 328 | EXPECT_TRUE(NULL != p); |
| 329 | EXPECT_EQ(kSize, bytes); |
| 330 | memcpy(p, in, kSize / 2); |
| 331 | stream->ConsumeWriteBuffer(kSize / 2); |
| 332 | p = stream->GetWriteBuffer(&bytes); |
| 333 | EXPECT_TRUE(NULL != p); |
| 334 | EXPECT_EQ(kSize / 2, bytes); |
| 335 | memcpy(p, in + kSize / 2, kSize / 2); |
| 336 | stream->ConsumeWriteBuffer(kSize / 2); |
| 337 | EXPECT_EQ(SR_SUCCESS, stream->Read(out, kSize, &bytes, NULL)); |
| 338 | EXPECT_EQ(kSize, bytes); |
| 339 | EXPECT_EQ(0, memcmp(in, out, kSize)); |
| 340 | |
| 341 | // Try using GetWriteBuffer in a wraparound case |
| 342 | // WWWWWWWWWWWW.... 0123456789AB.... |
| 343 | // RRRRRRRRXXXX.... ........89AB.... |
| 344 | // ........XXXXWWWW ........89AB0123 |
| 345 | // WWWW....XXXXXXXX 4567....89AB0123 |
| 346 | // RRRR....RRRRRRRR ................ |
| 347 | EXPECT_EQ(SR_SUCCESS, stream->Write(in, kSize * 3 / 4, &bytes, NULL)); |
| 348 | EXPECT_EQ(SR_SUCCESS, stream->Read(out, kSize / 2, &bytes, NULL)); |
| 349 | p = stream->GetWriteBuffer(&bytes); |
| 350 | EXPECT_TRUE(NULL != p); |
| 351 | EXPECT_EQ(kSize / 4, bytes); |
| 352 | memcpy(p, in, kSize / 4); |
| 353 | stream->ConsumeWriteBuffer(kSize / 4); |
| 354 | p = stream->GetWriteBuffer(&bytes); |
| 355 | EXPECT_TRUE(NULL != p); |
| 356 | EXPECT_EQ(kSize / 2, bytes); |
| 357 | memcpy(p, in + kSize / 4, kSize / 4); |
| 358 | stream->ConsumeWriteBuffer(kSize / 4); |
| 359 | EXPECT_EQ(SR_SUCCESS, stream->Read(out, kSize * 3 / 4, &bytes, NULL)); |
| 360 | EXPECT_EQ(kSize * 3 / 4, bytes); |
| 361 | EXPECT_EQ(0, memcmp(in + kSize / 2, out, kSize / 4)); |
| 362 | EXPECT_EQ(0, memcmp(in, out + kSize / 4, kSize / 4)); |
| 363 | |
| 364 | // Check that the stream is now empty |
| 365 | EXPECT_EQ(SR_BLOCK, stream->Read(out, kSize, &bytes, NULL)); |
| 366 | |
| 367 | // Try growing the buffer |
| 368 | EXPECT_EQ(SR_SUCCESS, stream->Write(in, kSize, &bytes, NULL)); |
| 369 | EXPECT_EQ(kSize, bytes); |
| 370 | EXPECT_TRUE(buf.SetCapacity(kSize * 2)); |
| 371 | EXPECT_EQ(SR_SUCCESS, stream->Write(in + kSize, kSize, &bytes, NULL)); |
| 372 | EXPECT_EQ(kSize, bytes); |
| 373 | EXPECT_EQ(SR_SUCCESS, stream->Read(out, kSize * 2, &bytes, NULL)); |
| 374 | EXPECT_EQ(kSize * 2, bytes); |
| 375 | EXPECT_EQ(0, memcmp(in, out, kSize * 2)); |
| 376 | |
| 377 | // Try shrinking the buffer |
| 378 | EXPECT_EQ(SR_SUCCESS, stream->Write(in, kSize, &bytes, NULL)); |
| 379 | EXPECT_EQ(kSize, bytes); |
| 380 | EXPECT_TRUE(buf.SetCapacity(kSize)); |
| 381 | EXPECT_EQ(SR_BLOCK, stream->Write(in, kSize, &bytes, NULL)); |
| 382 | EXPECT_EQ(SR_SUCCESS, stream->Read(out, kSize, &bytes, NULL)); |
| 383 | EXPECT_EQ(kSize, bytes); |
| 384 | EXPECT_EQ(0, memcmp(in, out, kSize)); |
| 385 | |
| 386 | // Write to the stream, close it, read the remaining bytes |
| 387 | EXPECT_EQ(SR_SUCCESS, stream->Write(in, kSize / 2, &bytes, NULL)); |
| 388 | stream->Close(); |
| 389 | EXPECT_EQ(SS_CLOSED, stream->GetState()); |
| 390 | EXPECT_EQ(SR_EOS, stream->Write(in, kSize / 2, &bytes, NULL)); |
| 391 | EXPECT_EQ(SR_SUCCESS, stream->Read(out, kSize / 2, &bytes, NULL)); |
| 392 | EXPECT_EQ(0, memcmp(in, out, kSize / 2)); |
| 393 | EXPECT_EQ(SR_EOS, stream->Read(out, kSize / 2, &bytes, NULL)); |
| 394 | } |
| 395 | |
| 396 | TEST(FifoBufferTest, FullBufferCheck) { |
| 397 | FifoBuffer buff(10); |
| 398 | buff.ConsumeWriteBuffer(10); |
| 399 | |
| 400 | size_t free; |
| 401 | EXPECT_TRUE(buff.GetWriteBuffer(&free) != NULL); |
| 402 | EXPECT_EQ(0U, free); |
| 403 | } |
| 404 | |
| 405 | TEST(FifoBufferTest, WriteOffsetAndReadOffset) { |
| 406 | const size_t kSize = 16; |
| 407 | const char in[kSize * 2 + 1] = "0123456789ABCDEFGHIJKLMNOPQRSTUV"; |
| 408 | char out[kSize * 2]; |
| 409 | FifoBuffer buf(kSize); |
| 410 | |
| 411 | // Write 14 bytes. |
| 412 | EXPECT_EQ(SR_SUCCESS, buf.Write(in, 14, NULL, NULL)); |
| 413 | |
| 414 | // Make sure data is in |buf|. |
| 415 | size_t buffered; |
| 416 | EXPECT_TRUE(buf.GetBuffered(&buffered)); |
| 417 | EXPECT_EQ(14u, buffered); |
| 418 | |
| 419 | // Read 10 bytes. |
| 420 | buf.ConsumeReadData(10); |
| 421 | |
| 422 | // There should be now 12 bytes of available space. |
| 423 | size_t remaining; |
| 424 | EXPECT_TRUE(buf.GetWriteRemaining(&remaining)); |
| 425 | EXPECT_EQ(12u, remaining); |
| 426 | |
| 427 | // Write at offset 12, this should fail. |
| 428 | EXPECT_EQ(SR_BLOCK, buf.WriteOffset(in, 10, 12, NULL)); |
| 429 | |
| 430 | // Write 8 bytes at offset 4, this wraps around the buffer. |
| 431 | EXPECT_EQ(SR_SUCCESS, buf.WriteOffset(in, 8, 4, NULL)); |
| 432 | |
| 433 | // Number of available space remains the same until we call |
| 434 | // ConsumeWriteBuffer(). |
| 435 | EXPECT_TRUE(buf.GetWriteRemaining(&remaining)); |
| 436 | EXPECT_EQ(12u, remaining); |
| 437 | buf.ConsumeWriteBuffer(12); |
| 438 | |
| 439 | // There's 4 bytes bypassed and 4 bytes no read so skip them and verify the |
| 440 | // 8 bytes written. |
| 441 | size_t read; |
| 442 | EXPECT_EQ(SR_SUCCESS, buf.ReadOffset(out, 8, 8, &read)); |
| 443 | EXPECT_EQ(8u, read); |
| 444 | EXPECT_EQ(0, memcmp(out, in, 8)); |
| 445 | |
| 446 | // There should still be 16 bytes available for reading. |
| 447 | EXPECT_TRUE(buf.GetBuffered(&buffered)); |
| 448 | EXPECT_EQ(16u, buffered); |
| 449 | |
| 450 | // Read at offset 16, this should fail since we don't have that much data. |
| 451 | EXPECT_EQ(SR_BLOCK, buf.ReadOffset(out, 10, 16, NULL)); |
| 452 | } |
| 453 | |
| 454 | TEST(AsyncWriteTest, TestWrite) { |
| 455 | FifoBuffer* buf = new FifoBuffer(100); |
| 456 | AsyncWriteStream stream(buf, Thread::Current()); |
| 457 | EXPECT_EQ(SS_OPEN, stream.GetState()); |
| 458 | |
| 459 | // Write "abc". Will go to the logging thread, which is the current |
| 460 | // thread. |
| 461 | stream.Write("abc", 3, NULL, NULL); |
| 462 | char bytes[100]; |
| 463 | size_t count; |
| 464 | // Messages on the thread's queue haven't been processed, so "abc" |
| 465 | // hasn't been written yet. |
| 466 | EXPECT_NE(SR_SUCCESS, buf->ReadOffset(&bytes, 3, 0, &count)); |
| 467 | // Now we process the messages on the thread's queue, so "abc" has |
| 468 | // been written. |
| 469 | EXPECT_TRUE_WAIT(SR_SUCCESS == buf->ReadOffset(&bytes, 3, 0, &count), 10); |
| 470 | EXPECT_EQ(3u, count); |
| 471 | EXPECT_EQ(0, memcmp(bytes, "abc", 3)); |
| 472 | |
| 473 | // Write "def". Will go to the logging thread, which is the current |
| 474 | // thread. |
| 475 | stream.Write("d", 1, &count, NULL); |
| 476 | stream.Write("e", 1, &count, NULL); |
| 477 | stream.Write("f", 1, &count, NULL); |
| 478 | EXPECT_EQ(1u, count); |
| 479 | // Messages on the thread's queue haven't been processed, so "def" |
| 480 | // hasn't been written yet. |
| 481 | EXPECT_NE(SR_SUCCESS, buf->ReadOffset(&bytes, 3, 3, &count)); |
| 482 | // Flush() causes the message to be processed, so "def" has now been |
| 483 | // written. |
| 484 | stream.Flush(); |
| 485 | EXPECT_EQ(SR_SUCCESS, buf->ReadOffset(&bytes, 3, 3, &count)); |
| 486 | EXPECT_EQ(3u, count); |
| 487 | EXPECT_EQ(0, memcmp(bytes, "def", 3)); |
| 488 | |
| 489 | // Write "xyz". Will go to the logging thread, which is the current |
| 490 | // thread. |
| 491 | stream.Write("xyz", 3, &count, NULL); |
| 492 | EXPECT_EQ(3u, count); |
| 493 | // Messages on the thread's queue haven't been processed, so "xyz" |
| 494 | // hasn't been written yet. |
| 495 | EXPECT_NE(SR_SUCCESS, buf->ReadOffset(&bytes, 3, 6, &count)); |
| 496 | // Close() causes the message to be processed, so "xyz" has now been |
| 497 | // written. |
| 498 | stream.Close(); |
| 499 | EXPECT_EQ(SR_SUCCESS, buf->ReadOffset(&bytes, 3, 6, &count)); |
| 500 | EXPECT_EQ(3u, count); |
| 501 | EXPECT_EQ(0, memcmp(bytes, "xyz", 3)); |
| 502 | EXPECT_EQ(SS_CLOSED, stream.GetState()); |
| 503 | |
| 504 | // Is't closed, so the writes should fail. |
| 505 | EXPECT_EQ(SR_ERROR, stream.Write("000", 3, NULL, NULL)); |
| 506 | |
| 507 | } |
| 508 | |
| 509 | } // namespace talk_base |