Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 1 | import contextlib |
Yury Selivanov | 8085b80 | 2015-05-18 12:50:52 -0400 | [diff] [blame] | 2 | import inspect |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 3 | import sys |
| 4 | import types |
| 5 | import unittest |
| 6 | import warnings |
| 7 | from test import support |
| 8 | |
| 9 | |
| 10 | class AsyncYieldFrom: |
| 11 | def __init__(self, obj): |
| 12 | self.obj = obj |
| 13 | |
| 14 | def __await__(self): |
| 15 | yield from self.obj |
| 16 | |
| 17 | |
| 18 | class AsyncYield: |
| 19 | def __init__(self, value): |
| 20 | self.value = value |
| 21 | |
| 22 | def __await__(self): |
| 23 | yield self.value |
| 24 | |
| 25 | |
| 26 | def run_async(coro): |
Yury Selivanov | 5376ba9 | 2015-06-22 12:19:30 -0400 | [diff] [blame] | 27 | assert coro.__class__ in {types.GeneratorType, types.CoroutineType} |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 28 | |
| 29 | buffer = [] |
| 30 | result = None |
| 31 | while True: |
| 32 | try: |
| 33 | buffer.append(coro.send(None)) |
| 34 | except StopIteration as ex: |
| 35 | result = ex.args[0] if ex.args else None |
| 36 | break |
| 37 | return buffer, result |
| 38 | |
| 39 | |
Yury Selivanov | 5376ba9 | 2015-06-22 12:19:30 -0400 | [diff] [blame] | 40 | def run_async__await__(coro): |
| 41 | assert coro.__class__ is types.CoroutineType |
| 42 | aw = coro.__await__() |
| 43 | buffer = [] |
| 44 | result = None |
| 45 | i = 0 |
| 46 | while True: |
| 47 | try: |
| 48 | if i % 2: |
| 49 | buffer.append(next(aw)) |
| 50 | else: |
| 51 | buffer.append(aw.send(None)) |
| 52 | i += 1 |
| 53 | except StopIteration as ex: |
| 54 | result = ex.args[0] if ex.args else None |
| 55 | break |
| 56 | return buffer, result |
| 57 | |
| 58 | |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 59 | @contextlib.contextmanager |
| 60 | def silence_coro_gc(): |
| 61 | with warnings.catch_warnings(): |
| 62 | warnings.simplefilter("ignore") |
| 63 | yield |
| 64 | support.gc_collect() |
| 65 | |
| 66 | |
| 67 | class AsyncBadSyntaxTest(unittest.TestCase): |
| 68 | |
| 69 | def test_badsyntax_1(self): |
Yury Selivanov | 8fb307c | 2015-07-22 13:33:45 +0300 | [diff] [blame] | 70 | with self.assertRaisesRegex(SyntaxError, "'await' outside"): |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 71 | import test.badsyntax_async1 |
| 72 | |
| 73 | def test_badsyntax_2(self): |
Yury Selivanov | 8fb307c | 2015-07-22 13:33:45 +0300 | [diff] [blame] | 74 | with self.assertRaisesRegex(SyntaxError, "'await' outside"): |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 75 | import test.badsyntax_async2 |
| 76 | |
| 77 | def test_badsyntax_3(self): |
| 78 | with self.assertRaisesRegex(SyntaxError, 'invalid syntax'): |
| 79 | import test.badsyntax_async3 |
| 80 | |
| 81 | def test_badsyntax_4(self): |
| 82 | with self.assertRaisesRegex(SyntaxError, 'invalid syntax'): |
| 83 | import test.badsyntax_async4 |
| 84 | |
| 85 | def test_badsyntax_5(self): |
| 86 | with self.assertRaisesRegex(SyntaxError, 'invalid syntax'): |
| 87 | import test.badsyntax_async5 |
| 88 | |
| 89 | def test_badsyntax_6(self): |
| 90 | with self.assertRaisesRegex( |
| 91 | SyntaxError, "'yield' inside async function"): |
| 92 | |
| 93 | import test.badsyntax_async6 |
| 94 | |
| 95 | def test_badsyntax_7(self): |
| 96 | with self.assertRaisesRegex( |
| 97 | SyntaxError, "'yield from' inside async function"): |
| 98 | |
| 99 | import test.badsyntax_async7 |
| 100 | |
| 101 | def test_badsyntax_8(self): |
| 102 | with self.assertRaisesRegex(SyntaxError, 'invalid syntax'): |
| 103 | import test.badsyntax_async8 |
| 104 | |
| 105 | def test_badsyntax_9(self): |
Yury Selivanov | 9dec035 | 2015-06-30 12:49:04 -0400 | [diff] [blame] | 106 | ns = {} |
| 107 | for comp in {'(await a for a in b)', |
| 108 | '[await a for a in b]', |
| 109 | '{await a for a in b}', |
| 110 | '{await a: c for a in b}'}: |
| 111 | |
Yury Selivanov | 86cd7d6 | 2015-06-30 12:51:12 -0400 | [diff] [blame] | 112 | with self.assertRaisesRegex(SyntaxError, 'await.*in comprehen'): |
Yury Selivanov | 9dec035 | 2015-06-30 12:49:04 -0400 | [diff] [blame] | 113 | exec('async def f():\n\t{}'.format(comp), ns, ns) |
| 114 | |
Yury Selivanov | 8fb307c | 2015-07-22 13:33:45 +0300 | [diff] [blame] | 115 | def test_badsyntax_10(self): |
| 116 | # Tests for issue 24619 |
| 117 | |
| 118 | samples = [ |
| 119 | """async def foo(): |
| 120 | def bar(): pass |
| 121 | await = 1 |
| 122 | """, |
| 123 | |
| 124 | """async def foo(): |
| 125 | |
| 126 | def bar(): pass |
| 127 | await = 1 |
| 128 | """, |
| 129 | |
| 130 | """async def foo(): |
| 131 | def bar(): pass |
| 132 | if 1: |
| 133 | await = 1 |
| 134 | """, |
| 135 | |
| 136 | """def foo(): |
| 137 | async def bar(): pass |
| 138 | if 1: |
| 139 | await a |
| 140 | """, |
| 141 | |
| 142 | """def foo(): |
| 143 | async def bar(): pass |
| 144 | await a |
| 145 | """, |
| 146 | |
| 147 | """def foo(): |
| 148 | def baz(): pass |
| 149 | async def bar(): pass |
| 150 | await a |
| 151 | """, |
| 152 | |
| 153 | """def foo(): |
| 154 | def baz(): pass |
| 155 | # 456 |
| 156 | async def bar(): pass |
| 157 | # 123 |
| 158 | await a |
| 159 | """, |
| 160 | |
| 161 | """async def foo(): |
| 162 | def baz(): pass |
| 163 | # 456 |
| 164 | async def bar(): pass |
| 165 | # 123 |
| 166 | await = 2 |
| 167 | """, |
| 168 | |
| 169 | """def foo(): |
| 170 | |
| 171 | def baz(): pass |
| 172 | |
| 173 | async def bar(): pass |
| 174 | |
| 175 | await a |
| 176 | """, |
| 177 | |
| 178 | """async def foo(): |
| 179 | |
| 180 | def baz(): pass |
| 181 | |
| 182 | async def bar(): pass |
| 183 | |
| 184 | await = 2 |
| 185 | """, |
| 186 | |
| 187 | """async def foo(): |
| 188 | def async(): pass |
| 189 | """, |
| 190 | |
| 191 | """async def foo(): |
| 192 | def await(): pass |
| 193 | """, |
| 194 | |
| 195 | """async def foo(): |
| 196 | def bar(): |
| 197 | await |
| 198 | """, |
| 199 | |
| 200 | """async def foo(): |
| 201 | return lambda async: await |
| 202 | """, |
| 203 | |
| 204 | """async def foo(): |
| 205 | return lambda a: await |
| 206 | """, |
| 207 | |
| 208 | """async def foo(a: await b): |
| 209 | pass |
| 210 | """, |
| 211 | |
| 212 | """def baz(): |
| 213 | async def foo(a: await b): |
| 214 | pass |
| 215 | """, |
| 216 | |
| 217 | """async def foo(async): |
| 218 | pass |
| 219 | """, |
| 220 | |
| 221 | """async def foo(): |
| 222 | def bar(): |
| 223 | def baz(): |
| 224 | async = 1 |
| 225 | """, |
| 226 | |
| 227 | """async def foo(): |
| 228 | def bar(): |
| 229 | def baz(): |
| 230 | pass |
| 231 | async = 1 |
| 232 | """, |
| 233 | |
| 234 | """def foo(): |
| 235 | async def bar(): |
| 236 | |
| 237 | async def baz(): |
| 238 | pass |
| 239 | |
| 240 | def baz(): |
| 241 | 42 |
| 242 | |
| 243 | async = 1 |
| 244 | """, |
| 245 | |
| 246 | """async def foo(): |
| 247 | def bar(): |
| 248 | def baz(): |
| 249 | pass\nawait foo() |
| 250 | """, |
| 251 | |
| 252 | """def foo(): |
| 253 | def bar(): |
| 254 | async def baz(): |
| 255 | pass\nawait foo() |
| 256 | """, |
| 257 | |
| 258 | """async def foo(await): |
| 259 | pass |
| 260 | """, |
| 261 | |
| 262 | """def foo(): |
| 263 | |
| 264 | async def bar(): pass |
| 265 | |
| 266 | await a |
| 267 | """, |
| 268 | |
| 269 | """def foo(): |
| 270 | async def bar(): |
| 271 | pass\nawait a |
| 272 | """] |
| 273 | |
| 274 | ns = {} |
| 275 | for code in samples: |
| 276 | with self.subTest(code=code), self.assertRaises(SyntaxError): |
| 277 | exec(code, ns, ns) |
| 278 | |
| 279 | def test_goodsyntax_1(self): |
| 280 | # Tests for issue 24619 |
| 281 | |
| 282 | def foo(await): |
| 283 | async def foo(): pass |
| 284 | async def foo(): |
| 285 | pass |
| 286 | return await + 1 |
| 287 | self.assertEqual(foo(10), 11) |
| 288 | |
| 289 | def foo(await): |
| 290 | async def foo(): pass |
| 291 | async def foo(): pass |
| 292 | return await + 2 |
| 293 | self.assertEqual(foo(20), 22) |
| 294 | |
| 295 | def foo(await): |
| 296 | |
| 297 | async def foo(): pass |
| 298 | |
| 299 | async def foo(): pass |
| 300 | |
| 301 | return await + 2 |
| 302 | self.assertEqual(foo(20), 22) |
| 303 | |
| 304 | def foo(await): |
| 305 | """spam""" |
| 306 | async def foo(): \ |
| 307 | pass |
| 308 | # 123 |
| 309 | async def foo(): pass |
| 310 | # 456 |
| 311 | return await + 2 |
| 312 | self.assertEqual(foo(20), 22) |
| 313 | |
| 314 | def foo(await): |
| 315 | def foo(): pass |
| 316 | def foo(): pass |
| 317 | async def bar(): return await_ |
| 318 | await_ = await |
| 319 | try: |
| 320 | bar().send(None) |
| 321 | except StopIteration as ex: |
| 322 | return ex.args[0] |
| 323 | self.assertEqual(foo(42), 42) |
| 324 | |
| 325 | async def f(): |
| 326 | async def g(): pass |
| 327 | await z |
| 328 | self.assertTrue(inspect.iscoroutinefunction(f)) |
| 329 | |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 330 | |
Yury Selivanov | 8085b80 | 2015-05-18 12:50:52 -0400 | [diff] [blame] | 331 | class TokenizerRegrTest(unittest.TestCase): |
| 332 | |
| 333 | def test_oneline_defs(self): |
| 334 | buf = [] |
| 335 | for i in range(500): |
| 336 | buf.append('def i{i}(): return {i}'.format(i=i)) |
| 337 | buf = '\n'.join(buf) |
| 338 | |
| 339 | # Test that 500 consequent, one-line defs is OK |
| 340 | ns = {} |
| 341 | exec(buf, ns, ns) |
| 342 | self.assertEqual(ns['i499'](), 499) |
| 343 | |
| 344 | # Test that 500 consequent, one-line defs *and* |
| 345 | # one 'async def' following them is OK |
| 346 | buf += '\nasync def foo():\n return' |
| 347 | ns = {} |
| 348 | exec(buf, ns, ns) |
| 349 | self.assertEqual(ns['i499'](), 499) |
| 350 | self.assertTrue(inspect.iscoroutinefunction(ns['foo'])) |
| 351 | |
| 352 | |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 353 | class CoroutineTest(unittest.TestCase): |
| 354 | |
| 355 | def test_gen_1(self): |
| 356 | def gen(): yield |
| 357 | self.assertFalse(hasattr(gen, '__await__')) |
| 358 | |
| 359 | def test_func_1(self): |
| 360 | async def foo(): |
| 361 | return 10 |
| 362 | |
| 363 | f = foo() |
Yury Selivanov | 5376ba9 | 2015-06-22 12:19:30 -0400 | [diff] [blame] | 364 | self.assertIsInstance(f, types.CoroutineType) |
| 365 | self.assertTrue(bool(foo.__code__.co_flags & inspect.CO_COROUTINE)) |
| 366 | self.assertFalse(bool(foo.__code__.co_flags & inspect.CO_GENERATOR)) |
| 367 | self.assertTrue(bool(f.cr_code.co_flags & inspect.CO_COROUTINE)) |
| 368 | self.assertFalse(bool(f.cr_code.co_flags & inspect.CO_GENERATOR)) |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 369 | self.assertEqual(run_async(f), ([], 10)) |
| 370 | |
Yury Selivanov | 5376ba9 | 2015-06-22 12:19:30 -0400 | [diff] [blame] | 371 | self.assertEqual(run_async__await__(foo()), ([], 10)) |
| 372 | |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 373 | def bar(): pass |
Yury Selivanov | 5376ba9 | 2015-06-22 12:19:30 -0400 | [diff] [blame] | 374 | self.assertFalse(bool(bar.__code__.co_flags & inspect.CO_COROUTINE)) |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 375 | |
| 376 | def test_func_2(self): |
| 377 | async def foo(): |
| 378 | raise StopIteration |
| 379 | |
| 380 | with self.assertRaisesRegex( |
Yury Selivanov | 5376ba9 | 2015-06-22 12:19:30 -0400 | [diff] [blame] | 381 | RuntimeError, "coroutine raised StopIteration"): |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 382 | |
| 383 | run_async(foo()) |
| 384 | |
| 385 | def test_func_3(self): |
| 386 | async def foo(): |
| 387 | raise StopIteration |
| 388 | |
| 389 | with silence_coro_gc(): |
| 390 | self.assertRegex(repr(foo()), '^<coroutine object.* at 0x.*>$') |
| 391 | |
| 392 | def test_func_4(self): |
| 393 | async def foo(): |
| 394 | raise StopIteration |
| 395 | |
| 396 | check = lambda: self.assertRaisesRegex( |
Yury Selivanov | 5376ba9 | 2015-06-22 12:19:30 -0400 | [diff] [blame] | 397 | TypeError, "'coroutine' object is not iterable") |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 398 | |
| 399 | with check(): |
| 400 | list(foo()) |
| 401 | |
| 402 | with check(): |
| 403 | tuple(foo()) |
| 404 | |
| 405 | with check(): |
| 406 | sum(foo()) |
| 407 | |
| 408 | with check(): |
| 409 | iter(foo()) |
| 410 | |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 411 | with silence_coro_gc(), check(): |
| 412 | for i in foo(): |
| 413 | pass |
| 414 | |
| 415 | with silence_coro_gc(), check(): |
| 416 | [i for i in foo()] |
| 417 | |
| 418 | def test_func_5(self): |
| 419 | @types.coroutine |
| 420 | def bar(): |
| 421 | yield 1 |
| 422 | |
| 423 | async def foo(): |
| 424 | await bar() |
| 425 | |
| 426 | check = lambda: self.assertRaisesRegex( |
Yury Selivanov | 5376ba9 | 2015-06-22 12:19:30 -0400 | [diff] [blame] | 427 | TypeError, "'coroutine' object is not iterable") |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 428 | |
| 429 | with check(): |
| 430 | for el in foo(): pass |
| 431 | |
| 432 | # the following should pass without an error |
| 433 | for el in bar(): |
| 434 | self.assertEqual(el, 1) |
| 435 | self.assertEqual([el for el in bar()], [1]) |
| 436 | self.assertEqual(tuple(bar()), (1,)) |
| 437 | self.assertEqual(next(iter(bar())), 1) |
| 438 | |
| 439 | def test_func_6(self): |
| 440 | @types.coroutine |
| 441 | def bar(): |
| 442 | yield 1 |
| 443 | yield 2 |
| 444 | |
| 445 | async def foo(): |
| 446 | await bar() |
| 447 | |
| 448 | f = foo() |
Zachary Ware | 37ac590 | 2015-05-13 01:03:06 -0500 | [diff] [blame] | 449 | self.assertEqual(f.send(None), 1) |
| 450 | self.assertEqual(f.send(None), 2) |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 451 | with self.assertRaises(StopIteration): |
| 452 | f.send(None) |
| 453 | |
| 454 | def test_func_7(self): |
| 455 | async def bar(): |
| 456 | return 10 |
| 457 | |
| 458 | def foo(): |
| 459 | yield from bar() |
| 460 | |
| 461 | with silence_coro_gc(), self.assertRaisesRegex( |
| 462 | TypeError, |
Yury Selivanov | 5376ba9 | 2015-06-22 12:19:30 -0400 | [diff] [blame] | 463 | "cannot 'yield from' a coroutine object in a non-coroutine generator"): |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 464 | |
| 465 | list(foo()) |
| 466 | |
| 467 | def test_func_8(self): |
| 468 | @types.coroutine |
| 469 | def bar(): |
| 470 | return (yield from foo()) |
| 471 | |
| 472 | async def foo(): |
| 473 | return 'spam' |
| 474 | |
| 475 | self.assertEqual(run_async(bar()), ([], 'spam') ) |
| 476 | |
| 477 | def test_func_9(self): |
| 478 | async def foo(): pass |
| 479 | |
| 480 | with self.assertWarnsRegex( |
| 481 | RuntimeWarning, "coroutine '.*test_func_9.*foo' was never awaited"): |
| 482 | |
| 483 | foo() |
| 484 | support.gc_collect() |
| 485 | |
Yury Selivanov | 5376ba9 | 2015-06-22 12:19:30 -0400 | [diff] [blame] | 486 | def test_func_10(self): |
| 487 | N = 0 |
| 488 | |
| 489 | @types.coroutine |
| 490 | def gen(): |
| 491 | nonlocal N |
| 492 | try: |
| 493 | a = yield |
| 494 | yield (a ** 2) |
| 495 | except ZeroDivisionError: |
| 496 | N += 100 |
| 497 | raise |
| 498 | finally: |
| 499 | N += 1 |
| 500 | |
| 501 | async def foo(): |
| 502 | await gen() |
| 503 | |
| 504 | coro = foo() |
| 505 | aw = coro.__await__() |
| 506 | self.assertIs(aw, iter(aw)) |
| 507 | next(aw) |
| 508 | self.assertEqual(aw.send(10), 100) |
| 509 | |
| 510 | self.assertEqual(N, 0) |
| 511 | aw.close() |
| 512 | self.assertEqual(N, 1) |
| 513 | |
| 514 | coro = foo() |
| 515 | aw = coro.__await__() |
| 516 | next(aw) |
| 517 | with self.assertRaises(ZeroDivisionError): |
| 518 | aw.throw(ZeroDivisionError, None, None) |
| 519 | self.assertEqual(N, 102) |
| 520 | |
| 521 | def test_func_11(self): |
| 522 | async def func(): pass |
| 523 | coro = func() |
| 524 | # Test that PyCoro_Type and _PyCoroWrapper_Type types were properly |
| 525 | # initialized |
| 526 | self.assertIn('__await__', dir(coro)) |
| 527 | self.assertIn('__iter__', dir(coro.__await__())) |
| 528 | self.assertIn('coroutine_wrapper', repr(coro.__await__())) |
| 529 | coro.close() # avoid RuntimeWarning |
| 530 | |
| 531 | def test_func_12(self): |
| 532 | async def g(): |
| 533 | i = me.send(None) |
| 534 | await foo |
| 535 | me = g() |
| 536 | with self.assertRaisesRegex(ValueError, |
| 537 | "coroutine already executing"): |
| 538 | me.send(None) |
| 539 | |
| 540 | def test_func_13(self): |
| 541 | async def g(): |
| 542 | pass |
| 543 | with self.assertRaisesRegex( |
| 544 | TypeError, |
| 545 | "can't send non-None value to a just-started coroutine"): |
| 546 | |
| 547 | g().send('spam') |
| 548 | |
| 549 | def test_func_14(self): |
| 550 | @types.coroutine |
| 551 | def gen(): |
| 552 | yield |
| 553 | async def coro(): |
| 554 | try: |
| 555 | await gen() |
| 556 | except GeneratorExit: |
| 557 | await gen() |
| 558 | c = coro() |
| 559 | c.send(None) |
| 560 | with self.assertRaisesRegex(RuntimeError, |
| 561 | "coroutine ignored GeneratorExit"): |
| 562 | c.close() |
| 563 | |
Yury Selivanov | e13f8f3 | 2015-07-03 00:23:30 -0400 | [diff] [blame] | 564 | def test_cr_await(self): |
| 565 | @types.coroutine |
| 566 | def a(): |
| 567 | self.assertEqual(inspect.getcoroutinestate(coro_b), inspect.CORO_RUNNING) |
| 568 | self.assertIsNone(coro_b.cr_await) |
| 569 | yield |
| 570 | self.assertEqual(inspect.getcoroutinestate(coro_b), inspect.CORO_RUNNING) |
| 571 | self.assertIsNone(coro_b.cr_await) |
| 572 | |
| 573 | async def c(): |
| 574 | await a() |
| 575 | |
| 576 | async def b(): |
| 577 | self.assertIsNone(coro_b.cr_await) |
| 578 | await c() |
| 579 | self.assertIsNone(coro_b.cr_await) |
| 580 | |
| 581 | coro_b = b() |
| 582 | self.assertEqual(inspect.getcoroutinestate(coro_b), inspect.CORO_CREATED) |
| 583 | self.assertIsNone(coro_b.cr_await) |
| 584 | |
| 585 | coro_b.send(None) |
| 586 | self.assertEqual(inspect.getcoroutinestate(coro_b), inspect.CORO_SUSPENDED) |
| 587 | self.assertEqual(coro_b.cr_await.cr_await.gi_code.co_name, 'a') |
| 588 | |
| 589 | with self.assertRaises(StopIteration): |
| 590 | coro_b.send(None) # complete coroutine |
| 591 | self.assertEqual(inspect.getcoroutinestate(coro_b), inspect.CORO_CLOSED) |
| 592 | self.assertIsNone(coro_b.cr_await) |
| 593 | |
Yury Selivanov | 5376ba9 | 2015-06-22 12:19:30 -0400 | [diff] [blame] | 594 | def test_corotype_1(self): |
| 595 | ct = types.CoroutineType |
| 596 | self.assertIn('into coroutine', ct.send.__doc__) |
| 597 | self.assertIn('inside coroutine', ct.close.__doc__) |
| 598 | self.assertIn('in coroutine', ct.throw.__doc__) |
| 599 | self.assertIn('of the coroutine', ct.__dict__['__name__'].__doc__) |
| 600 | self.assertIn('of the coroutine', ct.__dict__['__qualname__'].__doc__) |
| 601 | self.assertEqual(ct.__name__, 'coroutine') |
| 602 | |
| 603 | async def f(): pass |
| 604 | c = f() |
| 605 | self.assertIn('coroutine object', repr(c)) |
| 606 | c.close() |
| 607 | |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 608 | def test_await_1(self): |
| 609 | |
| 610 | async def foo(): |
| 611 | await 1 |
| 612 | with self.assertRaisesRegex(TypeError, "object int can.t.*await"): |
| 613 | run_async(foo()) |
| 614 | |
| 615 | def test_await_2(self): |
| 616 | async def foo(): |
| 617 | await [] |
| 618 | with self.assertRaisesRegex(TypeError, "object list can.t.*await"): |
| 619 | run_async(foo()) |
| 620 | |
| 621 | def test_await_3(self): |
| 622 | async def foo(): |
| 623 | await AsyncYieldFrom([1, 2, 3]) |
| 624 | |
| 625 | self.assertEqual(run_async(foo()), ([1, 2, 3], None)) |
Yury Selivanov | 5376ba9 | 2015-06-22 12:19:30 -0400 | [diff] [blame] | 626 | self.assertEqual(run_async__await__(foo()), ([1, 2, 3], None)) |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 627 | |
| 628 | def test_await_4(self): |
| 629 | async def bar(): |
| 630 | return 42 |
| 631 | |
| 632 | async def foo(): |
| 633 | return await bar() |
| 634 | |
| 635 | self.assertEqual(run_async(foo()), ([], 42)) |
| 636 | |
| 637 | def test_await_5(self): |
| 638 | class Awaitable: |
| 639 | def __await__(self): |
| 640 | return |
| 641 | |
| 642 | async def foo(): |
| 643 | return (await Awaitable()) |
| 644 | |
| 645 | with self.assertRaisesRegex( |
| 646 | TypeError, "__await__.*returned non-iterator of type"): |
| 647 | |
| 648 | run_async(foo()) |
| 649 | |
| 650 | def test_await_6(self): |
| 651 | class Awaitable: |
| 652 | def __await__(self): |
| 653 | return iter([52]) |
| 654 | |
| 655 | async def foo(): |
| 656 | return (await Awaitable()) |
| 657 | |
| 658 | self.assertEqual(run_async(foo()), ([52], None)) |
| 659 | |
| 660 | def test_await_7(self): |
| 661 | class Awaitable: |
| 662 | def __await__(self): |
| 663 | yield 42 |
| 664 | return 100 |
| 665 | |
| 666 | async def foo(): |
| 667 | return (await Awaitable()) |
| 668 | |
| 669 | self.assertEqual(run_async(foo()), ([42], 100)) |
| 670 | |
| 671 | def test_await_8(self): |
| 672 | class Awaitable: |
| 673 | pass |
| 674 | |
Yury Selivanov | 8fb307c | 2015-07-22 13:33:45 +0300 | [diff] [blame] | 675 | async def foo(): return await Awaitable() |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 676 | |
| 677 | with self.assertRaisesRegex( |
| 678 | TypeError, "object Awaitable can't be used in 'await' expression"): |
| 679 | |
| 680 | run_async(foo()) |
| 681 | |
| 682 | def test_await_9(self): |
| 683 | def wrap(): |
| 684 | return bar |
| 685 | |
| 686 | async def bar(): |
| 687 | return 42 |
| 688 | |
| 689 | async def foo(): |
| 690 | b = bar() |
| 691 | |
| 692 | db = {'b': lambda: wrap} |
| 693 | |
| 694 | class DB: |
| 695 | b = wrap |
| 696 | |
| 697 | return (await bar() + await wrap()() + await db['b']()()() + |
| 698 | await bar() * 1000 + await DB.b()()) |
| 699 | |
| 700 | async def foo2(): |
| 701 | return -await bar() |
| 702 | |
| 703 | self.assertEqual(run_async(foo()), ([], 42168)) |
| 704 | self.assertEqual(run_async(foo2()), ([], -42)) |
| 705 | |
| 706 | def test_await_10(self): |
| 707 | async def baz(): |
| 708 | return 42 |
| 709 | |
| 710 | async def bar(): |
| 711 | return baz() |
| 712 | |
| 713 | async def foo(): |
| 714 | return await (await bar()) |
| 715 | |
| 716 | self.assertEqual(run_async(foo()), ([], 42)) |
| 717 | |
| 718 | def test_await_11(self): |
| 719 | def ident(val): |
| 720 | return val |
| 721 | |
| 722 | async def bar(): |
| 723 | return 'spam' |
| 724 | |
| 725 | async def foo(): |
| 726 | return ident(val=await bar()) |
| 727 | |
| 728 | async def foo2(): |
| 729 | return await bar(), 'ham' |
| 730 | |
| 731 | self.assertEqual(run_async(foo2()), ([], ('spam', 'ham'))) |
| 732 | |
| 733 | def test_await_12(self): |
| 734 | async def coro(): |
| 735 | return 'spam' |
| 736 | |
| 737 | class Awaitable: |
| 738 | def __await__(self): |
| 739 | return coro() |
| 740 | |
| 741 | async def foo(): |
| 742 | return await Awaitable() |
| 743 | |
| 744 | with self.assertRaisesRegex( |
| 745 | TypeError, "__await__\(\) returned a coroutine"): |
| 746 | |
| 747 | run_async(foo()) |
| 748 | |
| 749 | def test_await_13(self): |
| 750 | class Awaitable: |
| 751 | def __await__(self): |
| 752 | return self |
| 753 | |
| 754 | async def foo(): |
| 755 | return await Awaitable() |
| 756 | |
| 757 | with self.assertRaisesRegex( |
| 758 | TypeError, "__await__.*returned non-iterator of type"): |
| 759 | |
| 760 | run_async(foo()) |
| 761 | |
Yury Selivanov | f270152 | 2015-07-01 12:29:55 -0400 | [diff] [blame] | 762 | def test_await_14(self): |
| 763 | class Wrapper: |
| 764 | # Forces the interpreter to use CoroutineType.__await__ |
| 765 | def __init__(self, coro): |
| 766 | assert coro.__class__ is types.CoroutineType |
| 767 | self.coro = coro |
| 768 | def __await__(self): |
| 769 | return self.coro.__await__() |
| 770 | |
| 771 | class FutureLike: |
| 772 | def __await__(self): |
| 773 | return (yield) |
| 774 | |
| 775 | class Marker(Exception): |
| 776 | pass |
| 777 | |
| 778 | async def coro1(): |
| 779 | try: |
| 780 | return await FutureLike() |
| 781 | except ZeroDivisionError: |
| 782 | raise Marker |
| 783 | async def coro2(): |
| 784 | return await Wrapper(coro1()) |
| 785 | |
| 786 | c = coro2() |
| 787 | c.send(None) |
| 788 | with self.assertRaisesRegex(StopIteration, 'spam'): |
| 789 | c.send('spam') |
| 790 | |
| 791 | c = coro2() |
| 792 | c.send(None) |
| 793 | with self.assertRaises(Marker): |
| 794 | c.throw(ZeroDivisionError) |
| 795 | |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 796 | def test_with_1(self): |
| 797 | class Manager: |
| 798 | def __init__(self, name): |
| 799 | self.name = name |
| 800 | |
| 801 | async def __aenter__(self): |
| 802 | await AsyncYieldFrom(['enter-1-' + self.name, |
| 803 | 'enter-2-' + self.name]) |
| 804 | return self |
| 805 | |
| 806 | async def __aexit__(self, *args): |
| 807 | await AsyncYieldFrom(['exit-1-' + self.name, |
| 808 | 'exit-2-' + self.name]) |
| 809 | |
| 810 | if self.name == 'B': |
| 811 | return True |
| 812 | |
| 813 | |
| 814 | async def foo(): |
| 815 | async with Manager("A") as a, Manager("B") as b: |
| 816 | await AsyncYieldFrom([('managers', a.name, b.name)]) |
| 817 | 1/0 |
| 818 | |
| 819 | f = foo() |
| 820 | result, _ = run_async(f) |
| 821 | |
| 822 | self.assertEqual( |
| 823 | result, ['enter-1-A', 'enter-2-A', 'enter-1-B', 'enter-2-B', |
| 824 | ('managers', 'A', 'B'), |
| 825 | 'exit-1-B', 'exit-2-B', 'exit-1-A', 'exit-2-A'] |
| 826 | ) |
| 827 | |
| 828 | async def foo(): |
| 829 | async with Manager("A") as a, Manager("C") as c: |
| 830 | await AsyncYieldFrom([('managers', a.name, c.name)]) |
| 831 | 1/0 |
| 832 | |
| 833 | with self.assertRaises(ZeroDivisionError): |
| 834 | run_async(foo()) |
| 835 | |
| 836 | def test_with_2(self): |
| 837 | class CM: |
| 838 | def __aenter__(self): |
| 839 | pass |
| 840 | |
| 841 | async def foo(): |
| 842 | async with CM(): |
| 843 | pass |
| 844 | |
| 845 | with self.assertRaisesRegex(AttributeError, '__aexit__'): |
| 846 | run_async(foo()) |
| 847 | |
| 848 | def test_with_3(self): |
| 849 | class CM: |
| 850 | def __aexit__(self): |
| 851 | pass |
| 852 | |
| 853 | async def foo(): |
| 854 | async with CM(): |
| 855 | pass |
| 856 | |
| 857 | with self.assertRaisesRegex(AttributeError, '__aenter__'): |
| 858 | run_async(foo()) |
| 859 | |
| 860 | def test_with_4(self): |
| 861 | class CM: |
| 862 | def __enter__(self): |
| 863 | pass |
| 864 | |
| 865 | def __exit__(self): |
| 866 | pass |
| 867 | |
| 868 | async def foo(): |
| 869 | async with CM(): |
| 870 | pass |
| 871 | |
| 872 | with self.assertRaisesRegex(AttributeError, '__aexit__'): |
| 873 | run_async(foo()) |
| 874 | |
| 875 | def test_with_5(self): |
| 876 | # While this test doesn't make a lot of sense, |
| 877 | # it's a regression test for an early bug with opcodes |
| 878 | # generation |
| 879 | |
| 880 | class CM: |
| 881 | async def __aenter__(self): |
| 882 | return self |
| 883 | |
| 884 | async def __aexit__(self, *exc): |
| 885 | pass |
| 886 | |
| 887 | async def func(): |
| 888 | async with CM(): |
| 889 | assert (1, ) == 1 |
| 890 | |
| 891 | with self.assertRaises(AssertionError): |
| 892 | run_async(func()) |
| 893 | |
| 894 | def test_with_6(self): |
| 895 | class CM: |
| 896 | def __aenter__(self): |
| 897 | return 123 |
| 898 | |
| 899 | def __aexit__(self, *e): |
| 900 | return 456 |
| 901 | |
| 902 | async def foo(): |
| 903 | async with CM(): |
| 904 | pass |
| 905 | |
| 906 | with self.assertRaisesRegex( |
| 907 | TypeError, "object int can't be used in 'await' expression"): |
| 908 | # it's important that __aexit__ wasn't called |
| 909 | run_async(foo()) |
| 910 | |
| 911 | def test_with_7(self): |
| 912 | class CM: |
| 913 | async def __aenter__(self): |
| 914 | return self |
| 915 | |
| 916 | def __aexit__(self, *e): |
Nick Coghlan | baaadbf | 2015-05-13 15:54:02 +1000 | [diff] [blame] | 917 | return 444 |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 918 | |
| 919 | async def foo(): |
| 920 | async with CM(): |
Nick Coghlan | baaadbf | 2015-05-13 15:54:02 +1000 | [diff] [blame] | 921 | 1/0 |
| 922 | |
| 923 | try: |
| 924 | run_async(foo()) |
| 925 | except TypeError as exc: |
| 926 | self.assertRegex( |
| 927 | exc.args[0], "object int can't be used in 'await' expression") |
| 928 | self.assertTrue(exc.__context__ is not None) |
| 929 | self.assertTrue(isinstance(exc.__context__, ZeroDivisionError)) |
| 930 | else: |
| 931 | self.fail('invalid asynchronous context manager did not fail') |
| 932 | |
| 933 | |
| 934 | def test_with_8(self): |
| 935 | CNT = 0 |
| 936 | |
| 937 | class CM: |
| 938 | async def __aenter__(self): |
| 939 | return self |
| 940 | |
| 941 | def __aexit__(self, *e): |
| 942 | return 456 |
| 943 | |
| 944 | async def foo(): |
| 945 | nonlocal CNT |
| 946 | async with CM(): |
| 947 | CNT += 1 |
| 948 | |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 949 | |
| 950 | with self.assertRaisesRegex( |
| 951 | TypeError, "object int can't be used in 'await' expression"): |
| 952 | |
| 953 | run_async(foo()) |
| 954 | |
Nick Coghlan | baaadbf | 2015-05-13 15:54:02 +1000 | [diff] [blame] | 955 | self.assertEqual(CNT, 1) |
| 956 | |
| 957 | |
| 958 | def test_with_9(self): |
| 959 | CNT = 0 |
| 960 | |
| 961 | class CM: |
| 962 | async def __aenter__(self): |
| 963 | return self |
| 964 | |
| 965 | async def __aexit__(self, *e): |
| 966 | 1/0 |
| 967 | |
| 968 | async def foo(): |
| 969 | nonlocal CNT |
| 970 | async with CM(): |
| 971 | CNT += 1 |
| 972 | |
| 973 | with self.assertRaises(ZeroDivisionError): |
| 974 | run_async(foo()) |
| 975 | |
| 976 | self.assertEqual(CNT, 1) |
| 977 | |
| 978 | def test_with_10(self): |
| 979 | CNT = 0 |
| 980 | |
| 981 | class CM: |
| 982 | async def __aenter__(self): |
| 983 | return self |
| 984 | |
| 985 | async def __aexit__(self, *e): |
| 986 | 1/0 |
| 987 | |
| 988 | async def foo(): |
| 989 | nonlocal CNT |
| 990 | async with CM(): |
| 991 | async with CM(): |
| 992 | raise RuntimeError |
| 993 | |
| 994 | try: |
| 995 | run_async(foo()) |
| 996 | except ZeroDivisionError as exc: |
| 997 | self.assertTrue(exc.__context__ is not None) |
| 998 | self.assertTrue(isinstance(exc.__context__, ZeroDivisionError)) |
| 999 | self.assertTrue(isinstance(exc.__context__.__context__, |
| 1000 | RuntimeError)) |
| 1001 | else: |
| 1002 | self.fail('exception from __aexit__ did not propagate') |
| 1003 | |
| 1004 | def test_with_11(self): |
| 1005 | CNT = 0 |
| 1006 | |
| 1007 | class CM: |
| 1008 | async def __aenter__(self): |
| 1009 | raise NotImplementedError |
| 1010 | |
| 1011 | async def __aexit__(self, *e): |
| 1012 | 1/0 |
| 1013 | |
| 1014 | async def foo(): |
| 1015 | nonlocal CNT |
| 1016 | async with CM(): |
| 1017 | raise RuntimeError |
| 1018 | |
| 1019 | try: |
| 1020 | run_async(foo()) |
| 1021 | except NotImplementedError as exc: |
| 1022 | self.assertTrue(exc.__context__ is None) |
| 1023 | else: |
| 1024 | self.fail('exception from __aenter__ did not propagate') |
| 1025 | |
| 1026 | def test_with_12(self): |
| 1027 | CNT = 0 |
| 1028 | |
| 1029 | class CM: |
| 1030 | async def __aenter__(self): |
| 1031 | return self |
| 1032 | |
| 1033 | async def __aexit__(self, *e): |
| 1034 | return True |
| 1035 | |
| 1036 | async def foo(): |
| 1037 | nonlocal CNT |
| 1038 | async with CM() as cm: |
| 1039 | self.assertIs(cm.__class__, CM) |
| 1040 | raise RuntimeError |
| 1041 | |
| 1042 | run_async(foo()) |
| 1043 | |
Yury Selivanov | 9113dc7 | 2015-05-13 16:49:35 -0400 | [diff] [blame] | 1044 | def test_with_13(self): |
| 1045 | CNT = 0 |
| 1046 | |
| 1047 | class CM: |
| 1048 | async def __aenter__(self): |
| 1049 | 1/0 |
| 1050 | |
| 1051 | async def __aexit__(self, *e): |
| 1052 | return True |
| 1053 | |
| 1054 | async def foo(): |
| 1055 | nonlocal CNT |
| 1056 | CNT += 1 |
| 1057 | async with CM(): |
| 1058 | CNT += 1000 |
| 1059 | CNT += 10000 |
| 1060 | |
| 1061 | with self.assertRaises(ZeroDivisionError): |
| 1062 | run_async(foo()) |
| 1063 | self.assertEqual(CNT, 1) |
| 1064 | |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 1065 | def test_for_1(self): |
| 1066 | aiter_calls = 0 |
| 1067 | |
| 1068 | class AsyncIter: |
| 1069 | def __init__(self): |
| 1070 | self.i = 0 |
| 1071 | |
| 1072 | async def __aiter__(self): |
| 1073 | nonlocal aiter_calls |
| 1074 | aiter_calls += 1 |
| 1075 | return self |
| 1076 | |
| 1077 | async def __anext__(self): |
| 1078 | self.i += 1 |
| 1079 | |
| 1080 | if not (self.i % 10): |
| 1081 | await AsyncYield(self.i * 10) |
| 1082 | |
| 1083 | if self.i > 100: |
| 1084 | raise StopAsyncIteration |
| 1085 | |
| 1086 | return self.i, self.i |
| 1087 | |
| 1088 | |
| 1089 | buffer = [] |
| 1090 | async def test1(): |
| 1091 | async for i1, i2 in AsyncIter(): |
| 1092 | buffer.append(i1 + i2) |
| 1093 | |
| 1094 | yielded, _ = run_async(test1()) |
| 1095 | # Make sure that __aiter__ was called only once |
| 1096 | self.assertEqual(aiter_calls, 1) |
| 1097 | self.assertEqual(yielded, [i * 100 for i in range(1, 11)]) |
| 1098 | self.assertEqual(buffer, [i*2 for i in range(1, 101)]) |
| 1099 | |
| 1100 | |
| 1101 | buffer = [] |
| 1102 | async def test2(): |
| 1103 | nonlocal buffer |
| 1104 | async for i in AsyncIter(): |
| 1105 | buffer.append(i[0]) |
| 1106 | if i[0] == 20: |
| 1107 | break |
| 1108 | else: |
| 1109 | buffer.append('what?') |
| 1110 | buffer.append('end') |
| 1111 | |
| 1112 | yielded, _ = run_async(test2()) |
| 1113 | # Make sure that __aiter__ was called only once |
| 1114 | self.assertEqual(aiter_calls, 2) |
| 1115 | self.assertEqual(yielded, [100, 200]) |
| 1116 | self.assertEqual(buffer, [i for i in range(1, 21)] + ['end']) |
| 1117 | |
| 1118 | |
| 1119 | buffer = [] |
| 1120 | async def test3(): |
| 1121 | nonlocal buffer |
| 1122 | async for i in AsyncIter(): |
| 1123 | if i[0] > 20: |
| 1124 | continue |
| 1125 | buffer.append(i[0]) |
| 1126 | else: |
| 1127 | buffer.append('what?') |
| 1128 | buffer.append('end') |
| 1129 | |
| 1130 | yielded, _ = run_async(test3()) |
| 1131 | # Make sure that __aiter__ was called only once |
| 1132 | self.assertEqual(aiter_calls, 3) |
| 1133 | self.assertEqual(yielded, [i * 100 for i in range(1, 11)]) |
| 1134 | self.assertEqual(buffer, [i for i in range(1, 21)] + |
| 1135 | ['what?', 'end']) |
| 1136 | |
| 1137 | def test_for_2(self): |
| 1138 | tup = (1, 2, 3) |
| 1139 | refs_before = sys.getrefcount(tup) |
| 1140 | |
| 1141 | async def foo(): |
| 1142 | async for i in tup: |
| 1143 | print('never going to happen') |
| 1144 | |
| 1145 | with self.assertRaisesRegex( |
| 1146 | TypeError, "async for' requires an object.*__aiter__.*tuple"): |
| 1147 | |
| 1148 | run_async(foo()) |
| 1149 | |
| 1150 | self.assertEqual(sys.getrefcount(tup), refs_before) |
| 1151 | |
| 1152 | def test_for_3(self): |
| 1153 | class I: |
| 1154 | def __aiter__(self): |
| 1155 | return self |
| 1156 | |
| 1157 | aiter = I() |
| 1158 | refs_before = sys.getrefcount(aiter) |
| 1159 | |
| 1160 | async def foo(): |
| 1161 | async for i in aiter: |
| 1162 | print('never going to happen') |
| 1163 | |
| 1164 | with self.assertRaisesRegex( |
| 1165 | TypeError, |
| 1166 | "async for' received an invalid object.*__aiter.*\: I"): |
| 1167 | |
| 1168 | run_async(foo()) |
| 1169 | |
| 1170 | self.assertEqual(sys.getrefcount(aiter), refs_before) |
| 1171 | |
| 1172 | def test_for_4(self): |
| 1173 | class I: |
| 1174 | async def __aiter__(self): |
| 1175 | return self |
| 1176 | |
| 1177 | def __anext__(self): |
| 1178 | return () |
| 1179 | |
| 1180 | aiter = I() |
| 1181 | refs_before = sys.getrefcount(aiter) |
| 1182 | |
| 1183 | async def foo(): |
| 1184 | async for i in aiter: |
| 1185 | print('never going to happen') |
| 1186 | |
| 1187 | with self.assertRaisesRegex( |
| 1188 | TypeError, |
| 1189 | "async for' received an invalid object.*__anext__.*tuple"): |
| 1190 | |
| 1191 | run_async(foo()) |
| 1192 | |
| 1193 | self.assertEqual(sys.getrefcount(aiter), refs_before) |
| 1194 | |
| 1195 | def test_for_5(self): |
| 1196 | class I: |
| 1197 | async def __aiter__(self): |
| 1198 | return self |
| 1199 | |
| 1200 | def __anext__(self): |
| 1201 | return 123 |
| 1202 | |
| 1203 | async def foo(): |
| 1204 | async for i in I(): |
| 1205 | print('never going to happen') |
| 1206 | |
| 1207 | with self.assertRaisesRegex( |
| 1208 | TypeError, |
| 1209 | "async for' received an invalid object.*__anext.*int"): |
| 1210 | |
| 1211 | run_async(foo()) |
| 1212 | |
| 1213 | def test_for_6(self): |
| 1214 | I = 0 |
| 1215 | |
| 1216 | class Manager: |
| 1217 | async def __aenter__(self): |
| 1218 | nonlocal I |
| 1219 | I += 10000 |
| 1220 | |
| 1221 | async def __aexit__(self, *args): |
| 1222 | nonlocal I |
| 1223 | I += 100000 |
| 1224 | |
| 1225 | class Iterable: |
| 1226 | def __init__(self): |
| 1227 | self.i = 0 |
| 1228 | |
| 1229 | async def __aiter__(self): |
| 1230 | return self |
| 1231 | |
| 1232 | async def __anext__(self): |
| 1233 | if self.i > 10: |
| 1234 | raise StopAsyncIteration |
| 1235 | self.i += 1 |
| 1236 | return self.i |
| 1237 | |
| 1238 | ############## |
| 1239 | |
| 1240 | manager = Manager() |
| 1241 | iterable = Iterable() |
| 1242 | mrefs_before = sys.getrefcount(manager) |
| 1243 | irefs_before = sys.getrefcount(iterable) |
| 1244 | |
| 1245 | async def main(): |
| 1246 | nonlocal I |
| 1247 | |
| 1248 | async with manager: |
| 1249 | async for i in iterable: |
| 1250 | I += 1 |
| 1251 | I += 1000 |
| 1252 | |
| 1253 | run_async(main()) |
| 1254 | self.assertEqual(I, 111011) |
| 1255 | |
| 1256 | self.assertEqual(sys.getrefcount(manager), mrefs_before) |
| 1257 | self.assertEqual(sys.getrefcount(iterable), irefs_before) |
| 1258 | |
| 1259 | ############## |
| 1260 | |
| 1261 | async def main(): |
| 1262 | nonlocal I |
| 1263 | |
| 1264 | async with Manager(): |
| 1265 | async for i in Iterable(): |
| 1266 | I += 1 |
| 1267 | I += 1000 |
| 1268 | |
| 1269 | async with Manager(): |
| 1270 | async for i in Iterable(): |
| 1271 | I += 1 |
| 1272 | I += 1000 |
| 1273 | |
| 1274 | run_async(main()) |
| 1275 | self.assertEqual(I, 333033) |
| 1276 | |
| 1277 | ############## |
| 1278 | |
| 1279 | async def main(): |
| 1280 | nonlocal I |
| 1281 | |
| 1282 | async with Manager(): |
| 1283 | I += 100 |
| 1284 | async for i in Iterable(): |
| 1285 | I += 1 |
| 1286 | else: |
| 1287 | I += 10000000 |
| 1288 | I += 1000 |
| 1289 | |
| 1290 | async with Manager(): |
| 1291 | I += 100 |
| 1292 | async for i in Iterable(): |
| 1293 | I += 1 |
| 1294 | else: |
| 1295 | I += 10000000 |
| 1296 | I += 1000 |
| 1297 | |
| 1298 | run_async(main()) |
| 1299 | self.assertEqual(I, 20555255) |
| 1300 | |
Yury Selivanov | 9113dc7 | 2015-05-13 16:49:35 -0400 | [diff] [blame] | 1301 | def test_for_7(self): |
| 1302 | CNT = 0 |
| 1303 | class AI: |
| 1304 | async def __aiter__(self): |
| 1305 | 1/0 |
| 1306 | async def foo(): |
| 1307 | nonlocal CNT |
| 1308 | async for i in AI(): |
| 1309 | CNT += 1 |
| 1310 | CNT += 10 |
| 1311 | with self.assertRaises(ZeroDivisionError): |
| 1312 | run_async(foo()) |
| 1313 | self.assertEqual(CNT, 0) |
| 1314 | |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 1315 | |
| 1316 | class CoroAsyncIOCompatTest(unittest.TestCase): |
| 1317 | |
| 1318 | def test_asyncio_1(self): |
| 1319 | import asyncio |
| 1320 | |
| 1321 | class MyException(Exception): |
| 1322 | pass |
| 1323 | |
| 1324 | buffer = [] |
| 1325 | |
| 1326 | class CM: |
| 1327 | async def __aenter__(self): |
| 1328 | buffer.append(1) |
| 1329 | await asyncio.sleep(0.01) |
| 1330 | buffer.append(2) |
| 1331 | return self |
| 1332 | |
| 1333 | async def __aexit__(self, exc_type, exc_val, exc_tb): |
| 1334 | await asyncio.sleep(0.01) |
| 1335 | buffer.append(exc_type.__name__) |
| 1336 | |
| 1337 | async def f(): |
| 1338 | async with CM() as c: |
| 1339 | await asyncio.sleep(0.01) |
| 1340 | raise MyException |
| 1341 | buffer.append('unreachable') |
| 1342 | |
Yury Selivanov | fdba838 | 2015-05-12 14:28:08 -0400 | [diff] [blame] | 1343 | loop = asyncio.new_event_loop() |
| 1344 | asyncio.set_event_loop(loop) |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 1345 | try: |
| 1346 | loop.run_until_complete(f()) |
| 1347 | except MyException: |
| 1348 | pass |
| 1349 | finally: |
| 1350 | loop.close() |
Yury Selivanov | fdba838 | 2015-05-12 14:28:08 -0400 | [diff] [blame] | 1351 | asyncio.set_event_loop(None) |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 1352 | |
| 1353 | self.assertEqual(buffer, [1, 2, 'MyException']) |
| 1354 | |
| 1355 | |
| 1356 | class SysSetCoroWrapperTest(unittest.TestCase): |
| 1357 | |
| 1358 | def test_set_wrapper_1(self): |
| 1359 | async def foo(): |
| 1360 | return 'spam' |
| 1361 | |
| 1362 | wrapped = None |
| 1363 | def wrap(gen): |
| 1364 | nonlocal wrapped |
| 1365 | wrapped = gen |
| 1366 | return gen |
| 1367 | |
| 1368 | self.assertIsNone(sys.get_coroutine_wrapper()) |
| 1369 | |
| 1370 | sys.set_coroutine_wrapper(wrap) |
| 1371 | self.assertIs(sys.get_coroutine_wrapper(), wrap) |
| 1372 | try: |
| 1373 | f = foo() |
| 1374 | self.assertTrue(wrapped) |
| 1375 | |
| 1376 | self.assertEqual(run_async(f), ([], 'spam')) |
| 1377 | finally: |
| 1378 | sys.set_coroutine_wrapper(None) |
| 1379 | |
| 1380 | self.assertIsNone(sys.get_coroutine_wrapper()) |
| 1381 | |
| 1382 | wrapped = None |
| 1383 | with silence_coro_gc(): |
| 1384 | foo() |
| 1385 | self.assertFalse(wrapped) |
| 1386 | |
| 1387 | def test_set_wrapper_2(self): |
| 1388 | self.assertIsNone(sys.get_coroutine_wrapper()) |
| 1389 | with self.assertRaisesRegex(TypeError, "callable expected, got int"): |
| 1390 | sys.set_coroutine_wrapper(1) |
| 1391 | self.assertIsNone(sys.get_coroutine_wrapper()) |
| 1392 | |
Yury Selivanov | aab3c4a | 2015-06-02 18:43:51 -0400 | [diff] [blame] | 1393 | def test_set_wrapper_3(self): |
| 1394 | async def foo(): |
| 1395 | return 'spam' |
| 1396 | |
| 1397 | def wrapper(coro): |
| 1398 | async def wrap(coro): |
| 1399 | return await coro |
| 1400 | return wrap(coro) |
| 1401 | |
| 1402 | sys.set_coroutine_wrapper(wrapper) |
| 1403 | try: |
Yury Selivanov | 94c2263 | 2015-06-04 10:16:51 -0400 | [diff] [blame] | 1404 | with silence_coro_gc(), self.assertRaisesRegex( |
Yury Selivanov | aab3c4a | 2015-06-02 18:43:51 -0400 | [diff] [blame] | 1405 | RuntimeError, |
| 1406 | "coroutine wrapper.*\.wrapper at 0x.*attempted to " |
Yury Selivanov | 94c2263 | 2015-06-04 10:16:51 -0400 | [diff] [blame] | 1407 | "recursively wrap .* wrap .*"): |
Yury Selivanov | aab3c4a | 2015-06-02 18:43:51 -0400 | [diff] [blame] | 1408 | |
| 1409 | foo() |
| 1410 | finally: |
| 1411 | sys.set_coroutine_wrapper(None) |
| 1412 | |
Yury Selivanov | 5376ba9 | 2015-06-22 12:19:30 -0400 | [diff] [blame] | 1413 | def test_set_wrapper_4(self): |
| 1414 | @types.coroutine |
| 1415 | def foo(): |
| 1416 | return 'spam' |
| 1417 | |
| 1418 | wrapped = None |
| 1419 | def wrap(gen): |
| 1420 | nonlocal wrapped |
| 1421 | wrapped = gen |
| 1422 | return gen |
| 1423 | |
| 1424 | sys.set_coroutine_wrapper(wrap) |
| 1425 | try: |
| 1426 | foo() |
| 1427 | self.assertIs( |
| 1428 | wrapped, None, |
| 1429 | "generator-based coroutine was wrapped via " |
| 1430 | "sys.set_coroutine_wrapper") |
| 1431 | finally: |
| 1432 | sys.set_coroutine_wrapper(None) |
| 1433 | |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 1434 | |
| 1435 | class CAPITest(unittest.TestCase): |
| 1436 | |
| 1437 | def test_tp_await_1(self): |
| 1438 | from _testcapi import awaitType as at |
| 1439 | |
| 1440 | async def foo(): |
| 1441 | future = at(iter([1])) |
| 1442 | return (await future) |
| 1443 | |
| 1444 | self.assertEqual(foo().send(None), 1) |
| 1445 | |
| 1446 | def test_tp_await_2(self): |
| 1447 | # Test tp_await to __await__ mapping |
| 1448 | from _testcapi import awaitType as at |
| 1449 | future = at(iter([1])) |
| 1450 | self.assertEqual(next(future.__await__()), 1) |
| 1451 | |
| 1452 | def test_tp_await_3(self): |
| 1453 | from _testcapi import awaitType as at |
| 1454 | |
| 1455 | async def foo(): |
| 1456 | future = at(1) |
| 1457 | return (await future) |
| 1458 | |
| 1459 | with self.assertRaisesRegex( |
| 1460 | TypeError, "__await__.*returned non-iterator of type 'int'"): |
| 1461 | self.assertEqual(foo().send(None), 1) |
| 1462 | |
| 1463 | |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 1464 | if __name__=="__main__": |
Zachary Ware | 37ac590 | 2015-05-13 01:03:06 -0500 | [diff] [blame] | 1465 | unittest.main() |