Roman Elizarov | 1f74a2d | 2018-06-29 19:19:45 +0300 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2016-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license. |
| 3 | */ |
| 4 | |
Sergey Mashkov | b87d636 | 2017-08-23 11:58:06 +0300 | [diff] [blame] | 5 | package kotlinx.coroutines.experimental.io |
| 6 | |
Roman Elizarov | 9fe5f46 | 2018-02-21 19:05:52 +0300 | [diff] [blame] | 7 | import kotlinx.coroutines.experimental.* |
| 8 | import kotlinx.coroutines.experimental.channels.* |
Sergey Mashkov | e676408 | 2017-12-05 12:27:09 +0300 | [diff] [blame] | 9 | import kotlinx.coroutines.experimental.io.internal.* |
Sergey Mashkov | c51ecd3 | 2017-10-27 22:42:39 +0300 | [diff] [blame] | 10 | import org.junit.* |
Sergey Mashkov | dfae5e2 | 2017-12-18 19:31:27 +0300 | [diff] [blame] | 11 | import org.junit.Test |
Roman Elizarov | 9fe5f46 | 2018-02-21 19:05:52 +0300 | [diff] [blame] | 12 | import java.io.* |
| 13 | import kotlin.coroutines.experimental.* |
Sergey Mashkov | dfae5e2 | 2017-12-18 19:31:27 +0300 | [diff] [blame] | 14 | import kotlin.test.* |
Sergey Mashkov | b87d636 | 2017-08-23 11:58:06 +0300 | [diff] [blame] | 15 | |
| 16 | class ByteBufferChannelScenarioTest : TestBase() { |
| 17 | private val ch = ByteBufferChannel(true) |
| 18 | |
Sergey Mashkov | c51ecd3 | 2017-10-27 22:42:39 +0300 | [diff] [blame] | 19 | @After |
| 20 | fun finish() { |
| 21 | ch.close(InterruptedException()) |
| 22 | } |
| 23 | |
Sergey Mashkov | b87d636 | 2017-08-23 11:58:06 +0300 | [diff] [blame] | 24 | @Test |
| 25 | fun testReadBeforeAvailable() { |
| 26 | expect(1) |
| 27 | |
| 28 | runBlocking { |
| 29 | launch(coroutineContext) { |
| 30 | expect(3) |
| 31 | |
| 32 | val bb = ByteBuffer.allocate(10) |
| 33 | val rc = ch.readAvailable(bb) // should suspend |
| 34 | |
| 35 | expect(5) |
| 36 | assertEquals(4, rc) |
| 37 | |
| 38 | expect(6) |
| 39 | } |
| 40 | |
| 41 | expect(2) |
| 42 | yield() |
| 43 | |
| 44 | expect(4) |
| 45 | ch.writeInt(0xff) // should resume |
| 46 | |
| 47 | yield() |
| 48 | |
| 49 | finish(7) |
| 50 | } |
| 51 | } |
| 52 | |
| 53 | @Test |
| 54 | fun testReadBeforeAvailable2() { |
| 55 | expect(1) |
| 56 | |
| 57 | runBlocking { |
| 58 | launch(coroutineContext) { |
| 59 | expect(3) |
| 60 | |
| 61 | val bb = ByteBuffer.allocate(4) |
| 62 | ch.readFully(bb) // should suspend |
| 63 | |
| 64 | expect(5) |
| 65 | |
| 66 | bb.flip() |
| 67 | assertEquals(4, bb.remaining()) |
| 68 | |
| 69 | expect(6) |
| 70 | } |
| 71 | |
| 72 | expect(2) |
| 73 | yield() |
| 74 | |
| 75 | expect(4) |
| 76 | ch.writeInt(0xff) // should resume |
| 77 | |
| 78 | yield() |
| 79 | |
| 80 | finish(7) |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | @Test |
| 85 | fun testReadAfterAvailable() { |
| 86 | expect(1) |
| 87 | |
| 88 | runBlocking { |
| 89 | ch.writeInt(0xff) // should resume |
| 90 | |
| 91 | launch(coroutineContext) { |
| 92 | expect(3) |
| 93 | |
| 94 | val bb = ByteBuffer.allocate(10) |
| 95 | val rc = ch.readAvailable(bb) // should NOT suspend |
| 96 | |
| 97 | expect(4) |
| 98 | assertEquals(4, rc) |
| 99 | |
| 100 | expect(5) |
| 101 | } |
| 102 | |
| 103 | expect(2) |
| 104 | yield() |
| 105 | |
| 106 | finish(6) |
| 107 | } |
| 108 | } |
| 109 | |
| 110 | @Test |
| 111 | fun testReadAfterAvailable2() { |
| 112 | expect(1) |
| 113 | |
| 114 | runBlocking { |
| 115 | ch.writeInt(0xff) // should resume |
| 116 | |
| 117 | launch(coroutineContext) { |
| 118 | expect(3) |
| 119 | |
| 120 | val bb = ByteBuffer.allocate(4) |
| 121 | ch.readFully(bb) // should NOT suspend |
| 122 | |
| 123 | expect(4) |
| 124 | bb.flip() |
| 125 | assertEquals(4, bb.remaining()) |
| 126 | |
| 127 | expect(5) |
| 128 | } |
| 129 | |
| 130 | expect(2) |
| 131 | yield() |
| 132 | |
| 133 | finish(6) |
| 134 | } |
| 135 | } |
| 136 | |
| 137 | @Test |
| 138 | fun testReadToEmpty() { |
| 139 | runBlocking { |
| 140 | expect(1) |
| 141 | |
| 142 | val rc = ch.readAvailable(ByteBuffer.allocate(0)) |
| 143 | |
| 144 | expect(2) |
| 145 | |
| 146 | assertEquals(0, rc) |
| 147 | |
| 148 | finish(3) |
| 149 | } |
| 150 | } |
| 151 | |
| 152 | @Test |
| 153 | fun testReadToEmptyFromFailedChannel() { |
| 154 | runBlocking { |
| 155 | expect(1) |
| 156 | |
| 157 | ch.close(IOException()) |
| 158 | |
| 159 | try { |
| 160 | ch.readAvailable(ByteBuffer.allocate(0)) |
| 161 | fail("Should throw exception") |
| 162 | } catch (expected: IOException) { |
| 163 | } |
| 164 | |
| 165 | finish(2) |
| 166 | } |
| 167 | } |
| 168 | |
| 169 | @Test |
| 170 | fun testReadToEmptyFromClosedChannel() { |
| 171 | runBlocking { |
| 172 | expect(1) |
| 173 | |
| 174 | ch.close() |
| 175 | |
| 176 | val rc = ch.readAvailable(ByteBuffer.allocate(0)) |
| 177 | |
| 178 | expect(2) |
| 179 | |
| 180 | assertEquals(-1, rc) |
| 181 | |
| 182 | finish(3) |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | @Test |
| 187 | fun testReadFullyToEmptyFromClosedChannel() { |
| 188 | runBlocking { |
| 189 | expect(1) |
| 190 | |
| 191 | ch.close() |
| 192 | |
| 193 | ch.readFully(ByteBuffer.allocate(0)) |
| 194 | |
| 195 | finish(2) |
| 196 | } |
| 197 | } |
| 198 | |
| 199 | @Test |
| 200 | fun testReadFullyFromClosedChannel() { |
| 201 | runBlocking { |
| 202 | expect(1) |
| 203 | |
| 204 | ch.close() |
| 205 | try { |
| 206 | ch.readFully(ByteBuffer.allocate(1)) |
| 207 | fail("Should throw exception") |
| 208 | } catch (expected: ClosedReceiveChannelException) { |
| 209 | } |
| 210 | |
| 211 | finish(2) |
| 212 | } |
| 213 | } |
| 214 | |
| 215 | @Test |
| 216 | fun testReadFullyToEmptyFromFailedChannel() { |
| 217 | runBlocking { |
| 218 | expect(1) |
| 219 | |
| 220 | ch.close(IOException()) |
| 221 | |
| 222 | try { |
| 223 | ch.readFully(ByteBuffer.allocate(0)) |
| 224 | fail("Should throw exception") |
| 225 | } catch (expected: IOException) { |
| 226 | } |
| 227 | |
| 228 | finish(2) |
| 229 | } |
| 230 | } |
Sergey Mashkov | 7510117 | 2017-09-25 19:41:08 +0300 | [diff] [blame] | 231 | |
| 232 | @Test |
| 233 | fun testWriteBlock() { |
| 234 | runBlocking { |
| 235 | launch(coroutineContext) { |
| 236 | expect(1) |
| 237 | |
| 238 | ch.write { |
| 239 | it.putLong(0x1234567812345678L) |
| 240 | } |
| 241 | |
| 242 | expect(2) |
| 243 | } |
| 244 | |
| 245 | yield() |
| 246 | expect(3) |
| 247 | |
| 248 | assertEquals(0x1234567812345678L, ch.readLong()) |
| 249 | assertEquals(0, ch.availableForRead) |
| 250 | |
| 251 | finish(4) |
| 252 | } |
| 253 | } |
| 254 | |
| 255 | @Test |
| 256 | fun testWriteBlockSuspend() { |
| 257 | runBlocking { |
| 258 | launch(coroutineContext) { |
| 259 | expect(1) |
| 260 | |
| 261 | ch.writeFully(ByteArray(4088)) |
| 262 | |
| 263 | expect(2) |
| 264 | |
| 265 | ch.write(8) { |
| 266 | it.putLong(0x1234567812345678L) |
| 267 | } |
| 268 | |
| 269 | expect(4) |
| 270 | } |
| 271 | |
| 272 | yield() |
| 273 | expect(3) |
| 274 | |
| 275 | ch.readFully(ByteArray(9)) |
| 276 | yield() |
| 277 | expect(5) |
| 278 | |
| 279 | ch.readFully(ByteArray(4088 - 9)) |
| 280 | |
| 281 | expect(6) |
| 282 | |
| 283 | assertEquals(0x1234567812345678L, ch.readLong()) |
| 284 | assertEquals(0, ch.availableForRead) |
| 285 | |
| 286 | finish(7) |
| 287 | } |
| 288 | } |
| 289 | |
| 290 | @Test |
| 291 | fun testReadBlock() = runBlocking { |
| 292 | ch.writeLong(0x1234567812345678L) |
| 293 | |
| 294 | ch.read { |
| 295 | assertEquals(0x1234567812345678L, it.getLong()) |
| 296 | } |
| 297 | |
| 298 | finish(1) |
| 299 | } |
| 300 | |
| 301 | @Test |
| 302 | fun testReadBlockSuspend() = runBlocking { |
| 303 | ch.writeByte(0x12) |
| 304 | |
| 305 | launch(coroutineContext) { |
| 306 | expect(1) |
| 307 | ch.read(8) { |
| 308 | assertEquals(0x1234567812345678L, it.getLong()) |
| 309 | } |
| 310 | |
| 311 | expect(3) |
| 312 | } |
| 313 | |
| 314 | yield() |
| 315 | expect(2) |
| 316 | |
| 317 | ch.writeLong(0x3456781234567800L) |
| 318 | yield() |
| 319 | |
| 320 | expect(4) |
| 321 | ch.readByte() |
| 322 | assertEquals(0, ch.availableForRead) |
| 323 | |
| 324 | finish(5) |
| 325 | } |
| 326 | |
| 327 | @Test |
| 328 | fun testReadBlockSuspend2() = runBlocking { |
| 329 | launch(coroutineContext) { |
| 330 | expect(1) |
| 331 | ch.read(8) { |
| 332 | assertEquals(0x1234567812345678L, it.getLong()) |
| 333 | } |
| 334 | |
| 335 | expect(3) |
| 336 | } |
| 337 | |
| 338 | yield() |
| 339 | expect(2) |
| 340 | |
| 341 | ch.writeLong(0x1234567812345678L) |
| 342 | yield() |
| 343 | |
| 344 | expect(4) |
| 345 | assertEquals(0, ch.availableForRead) |
| 346 | |
| 347 | finish(5) |
| 348 | } |
Sergey Mashkov | bab9f79 | 2017-11-07 19:42:15 +0300 | [diff] [blame] | 349 | |
| 350 | @Test |
| 351 | fun testWriteByteSuspend() = runBlocking { |
| 352 | launch(coroutineContext) { |
| 353 | expect(1) |
| 354 | ch.writeByte(1) |
| 355 | ch.writeFully(ByteArray(ch.availableForWrite)) |
| 356 | expect(2) |
| 357 | ch.writeByte(1) |
| 358 | expect(5) |
| 359 | ch.close() |
| 360 | } |
| 361 | |
| 362 | yield() |
| 363 | expect(3) |
| 364 | yield() |
| 365 | expect(4) |
| 366 | yield() |
| 367 | |
| 368 | ch.readByte() |
| 369 | yield() |
| 370 | |
| 371 | ch.readRemaining() |
| 372 | finish(6) |
| 373 | } |
| 374 | |
| 375 | @Test |
| 376 | fun testWriteShortSuspend() = runBlocking { |
| 377 | launch(coroutineContext) { |
| 378 | expect(1) |
| 379 | ch.writeByte(1) |
| 380 | ch.writeFully(ByteArray(ch.availableForWrite)) |
| 381 | expect(2) |
| 382 | ch.writeShort(1) |
| 383 | expect(5) |
| 384 | ch.close() |
| 385 | } |
| 386 | |
| 387 | yield() |
| 388 | expect(3) |
| 389 | yield() |
| 390 | expect(4) |
| 391 | yield() |
| 392 | |
| 393 | ch.readShort() |
| 394 | yield() |
| 395 | |
| 396 | ch.readRemaining() |
| 397 | finish(6) |
| 398 | } |
| 399 | |
| 400 | @Test |
| 401 | fun testWriteIntSuspend() = runBlocking { |
| 402 | launch(coroutineContext) { |
| 403 | expect(1) |
| 404 | ch.writeByte(1) |
| 405 | ch.writeFully(ByteArray(ch.availableForWrite)) |
| 406 | expect(2) |
| 407 | ch.writeInt(1) |
| 408 | expect(5) |
| 409 | ch.close() |
| 410 | } |
| 411 | |
| 412 | yield() |
| 413 | expect(3) |
| 414 | yield() |
| 415 | expect(4) |
| 416 | yield() |
| 417 | |
| 418 | ch.readInt() |
| 419 | yield() |
| 420 | |
| 421 | ch.readRemaining() |
| 422 | finish(6) |
| 423 | } |
| 424 | |
| 425 | @Test |
Sergey Mashkov | e676408 | 2017-12-05 12:27:09 +0300 | [diff] [blame] | 426 | fun testWriteIntThenRead() = runBlocking { |
| 427 | val size = BUFFER_SIZE - RESERVED_SIZE - 3 |
| 428 | |
| 429 | expect(1) |
| 430 | ch.writeFully(java.nio.ByteBuffer.allocate(size)) |
| 431 | ch.flush() |
| 432 | expect(2) |
| 433 | |
| 434 | launch(coroutineContext) { |
| 435 | expect(4) |
| 436 | ch.readPacket(size).release() |
| 437 | } |
| 438 | |
| 439 | // coroutine is pending |
| 440 | expect(3) |
| 441 | ch.writeInt(0x11223344) |
| 442 | expect(5) |
| 443 | |
| 444 | assertEquals(0x11223344, ch.readInt()) |
| 445 | |
| 446 | finish(6) |
| 447 | } |
| 448 | |
| 449 | @Test |
Sergey Mashkov | bab9f79 | 2017-11-07 19:42:15 +0300 | [diff] [blame] | 450 | fun testWriteLongSuspend() = runBlocking { |
| 451 | launch(coroutineContext) { |
| 452 | expect(1) |
| 453 | ch.writeByte(1) |
| 454 | ch.writeFully(ByteArray(ch.availableForWrite)) |
| 455 | expect(2) |
| 456 | ch.writeLong(1) |
| 457 | expect(5) |
| 458 | ch.close() |
| 459 | } |
| 460 | |
| 461 | yield() |
| 462 | expect(3) |
| 463 | yield() |
| 464 | expect(4) |
| 465 | yield() |
| 466 | |
| 467 | ch.readLong() |
| 468 | yield() |
| 469 | |
| 470 | ch.readRemaining() |
| 471 | finish(6) |
| 472 | } |
| 473 | |
Sergey Mashkov | 4df720f | 2017-12-05 16:45:55 +0300 | [diff] [blame] | 474 | @Test |
| 475 | fun testDiscardExisting() = runBlocking { |
| 476 | launch(coroutineContext) { |
| 477 | expect(1) |
| 478 | ch.writeInt(1) |
| 479 | ch.writeInt(2) |
| 480 | expect(2) |
| 481 | } |
| 482 | |
| 483 | yield() |
| 484 | expect(3) |
| 485 | |
| 486 | assertEquals(4, ch.discard(4)) |
| 487 | assertEquals(2, ch.readInt()) |
| 488 | |
| 489 | finish(4) |
| 490 | } |
| 491 | |
| 492 | @Test |
| 493 | fun testDiscardPartiallyExisting() = runBlocking { |
| 494 | ch.writeInt(1) |
| 495 | |
| 496 | launch(coroutineContext) { |
| 497 | expect(1) |
| 498 | assertEquals(8, ch.discard(8)) |
| 499 | expect(3) |
| 500 | } |
| 501 | |
| 502 | yield() |
| 503 | expect(2) |
| 504 | |
| 505 | ch.writeInt(2) |
| 506 | yield() |
| 507 | |
| 508 | expect(4) |
| 509 | assertEquals(0, ch.availableForRead) |
| 510 | finish(5) |
| 511 | } |
| 512 | |
| 513 | @Test |
| 514 | fun testDiscardPartiallyExisting2() = runBlocking { |
| 515 | launch(coroutineContext) { |
| 516 | expect(1) |
| 517 | assertEquals(8, ch.discard(8)) |
| 518 | expect(4) |
| 519 | } |
| 520 | |
| 521 | yield() |
| 522 | |
| 523 | expect(2) |
| 524 | ch.writeInt(1) |
| 525 | yield() |
| 526 | expect(3) |
| 527 | assertEquals(0, ch.availableForRead) |
| 528 | |
| 529 | ch.writeInt(2) |
| 530 | yield() |
| 531 | expect(5) |
| 532 | assertEquals(0, ch.availableForRead) |
| 533 | finish(6) |
| 534 | } |
| 535 | |
| 536 | @Test |
| 537 | fun testDiscardClose() = runBlocking { |
| 538 | launch(coroutineContext) { |
| 539 | expect(1) |
| 540 | assertEquals(8, ch.discard()) |
| 541 | expect(4) |
| 542 | } |
| 543 | |
| 544 | yield() |
| 545 | |
| 546 | expect(2) |
| 547 | ch.writeInt(1) |
| 548 | yield() |
| 549 | ch.writeInt(2) |
| 550 | yield() |
| 551 | |
| 552 | expect(3) |
| 553 | ch.close() |
| 554 | yield() |
| 555 | |
| 556 | finish(5) |
| 557 | } |
Sergey Mashkov | dfae5e2 | 2017-12-18 19:31:27 +0300 | [diff] [blame] | 558 | |
| 559 | @Test |
| 560 | fun testWriteWhile() = runBlocking { |
| 561 | val size = 16384 |
| 562 | |
| 563 | launch(coroutineContext) { |
| 564 | expect(1) |
| 565 | var b: Byte = 0 |
| 566 | var count = 0 |
| 567 | |
| 568 | ch.writeWhile { buffer -> |
| 569 | while (buffer.hasRemaining() && count < size) { |
| 570 | buffer.put(b++) |
| 571 | count++ |
| 572 | } |
| 573 | count < size |
| 574 | } |
| 575 | expect(3) |
| 576 | ch.close() |
| 577 | } |
| 578 | |
| 579 | yield() |
| 580 | |
| 581 | expect(2) |
| 582 | |
| 583 | val buffer = ByteArray(size) |
| 584 | ch.readFully(buffer) |
| 585 | |
| 586 | var expectedB: Byte = 0 |
| 587 | for (i in buffer.indices) { |
| 588 | assertEquals(expectedB, buffer[i]) |
| 589 | expectedB++ |
| 590 | } |
| 591 | |
| 592 | yield() |
| 593 | yield() |
| 594 | |
| 595 | finish(4) |
| 596 | assertTrue(ch.isClosedForRead) |
| 597 | } |
Sergey Mashkov | b87d636 | 2017-08-23 11:58:06 +0300 | [diff] [blame] | 598 | } |