Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 1 | from collections import namedtuple |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 2 | import contextlib |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 3 | import itertools |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 4 | import os |
| 5 | import pickle |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 6 | import sys |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 7 | from textwrap import dedent, indent |
| 8 | import threading |
Eric Snow | f53d9f2 | 2018-02-20 16:30:17 -0700 | [diff] [blame] | 9 | import time |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 10 | import unittest |
| 11 | |
| 12 | from test import support |
| 13 | from test.support import script_helper |
| 14 | |
Victor Stinner | c4f3cb7 | 2018-06-08 02:28:28 +0200 | [diff] [blame] | 15 | |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 16 | interpreters = support.import_module('_xxsubinterpreters') |
| 17 | |
| 18 | |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 19 | ################################## |
| 20 | # helpers |
| 21 | |
| 22 | def powerset(*sets): |
| 23 | return itertools.chain.from_iterable( |
| 24 | combinations(sets, r) |
| 25 | for r in range(len(sets)+1)) |
| 26 | |
| 27 | |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 28 | def _captured_script(script): |
| 29 | r, w = os.pipe() |
| 30 | indented = script.replace('\n', '\n ') |
| 31 | wrapped = dedent(f""" |
| 32 | import contextlib |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 33 | with open({w}, 'w') as spipe: |
| 34 | with contextlib.redirect_stdout(spipe): |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 35 | {indented} |
| 36 | """) |
| 37 | return wrapped, open(r) |
| 38 | |
| 39 | |
| 40 | def _run_output(interp, request, shared=None): |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 41 | script, rpipe = _captured_script(request) |
| 42 | with rpipe: |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 43 | interpreters.run_string(interp, script, shared) |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 44 | return rpipe.read() |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 45 | |
| 46 | |
| 47 | @contextlib.contextmanager |
| 48 | def _running(interp): |
| 49 | r, w = os.pipe() |
| 50 | def run(): |
| 51 | interpreters.run_string(interp, dedent(f""" |
| 52 | # wait for "signal" |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 53 | with open({r}) as rpipe: |
| 54 | rpipe.read() |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 55 | """)) |
| 56 | |
| 57 | t = threading.Thread(target=run) |
| 58 | t.start() |
| 59 | |
| 60 | yield |
| 61 | |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 62 | with open(w, 'w') as spipe: |
| 63 | spipe.write('done') |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 64 | t.join() |
| 65 | |
| 66 | |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 67 | #@contextmanager |
| 68 | #def run_threaded(id, source, **shared): |
| 69 | # def run(): |
| 70 | # run_interp(id, source, **shared) |
| 71 | # t = threading.Thread(target=run) |
| 72 | # t.start() |
| 73 | # yield |
| 74 | # t.join() |
| 75 | |
| 76 | |
| 77 | def run_interp(id, source, **shared): |
| 78 | _run_interp(id, source, shared) |
| 79 | |
| 80 | |
| 81 | def _run_interp(id, source, shared, _mainns={}): |
| 82 | source = dedent(source) |
| 83 | main = interpreters.get_main() |
| 84 | if main == id: |
| 85 | if interpreters.get_current() != main: |
| 86 | raise RuntimeError |
| 87 | # XXX Run a func? |
| 88 | exec(source, _mainns) |
| 89 | else: |
| 90 | interpreters.run_string(id, source, shared) |
| 91 | |
| 92 | |
| 93 | def run_interp_threaded(id, source, **shared): |
| 94 | def run(): |
| 95 | _run(id, source, shared) |
| 96 | t = threading.Thread(target=run) |
| 97 | t.start() |
| 98 | t.join() |
| 99 | |
| 100 | |
| 101 | class Interpreter(namedtuple('Interpreter', 'name id')): |
| 102 | |
| 103 | @classmethod |
| 104 | def from_raw(cls, raw): |
| 105 | if isinstance(raw, cls): |
| 106 | return raw |
| 107 | elif isinstance(raw, str): |
| 108 | return cls(raw) |
| 109 | else: |
| 110 | raise NotImplementedError |
| 111 | |
| 112 | def __new__(cls, name=None, id=None): |
| 113 | main = interpreters.get_main() |
| 114 | if id == main: |
| 115 | if not name: |
| 116 | name = 'main' |
| 117 | elif name != 'main': |
| 118 | raise ValueError( |
| 119 | 'name mismatch (expected "main", got "{}")'.format(name)) |
| 120 | id = main |
| 121 | elif id is not None: |
| 122 | if not name: |
| 123 | name = 'interp' |
| 124 | elif name == 'main': |
| 125 | raise ValueError('name mismatch (unexpected "main")') |
| 126 | if not isinstance(id, interpreters.InterpreterID): |
| 127 | id = interpreters.InterpreterID(id) |
| 128 | elif not name or name == 'main': |
| 129 | name = 'main' |
| 130 | id = main |
| 131 | else: |
| 132 | id = interpreters.create() |
| 133 | self = super().__new__(cls, name, id) |
| 134 | return self |
| 135 | |
| 136 | |
| 137 | # XXX expect_channel_closed() is unnecessary once we improve exc propagation. |
| 138 | |
| 139 | @contextlib.contextmanager |
| 140 | def expect_channel_closed(): |
| 141 | try: |
| 142 | yield |
| 143 | except interpreters.ChannelClosedError: |
| 144 | pass |
| 145 | else: |
| 146 | assert False, 'channel not closed' |
| 147 | |
| 148 | |
| 149 | class ChannelAction(namedtuple('ChannelAction', 'action end interp')): |
| 150 | |
| 151 | def __new__(cls, action, end=None, interp=None): |
| 152 | if not end: |
| 153 | end = 'both' |
| 154 | if not interp: |
| 155 | interp = 'main' |
| 156 | self = super().__new__(cls, action, end, interp) |
| 157 | return self |
| 158 | |
| 159 | def __init__(self, *args, **kwargs): |
| 160 | if self.action == 'use': |
| 161 | if self.end not in ('same', 'opposite', 'send', 'recv'): |
| 162 | raise ValueError(self.end) |
| 163 | elif self.action in ('close', 'force-close'): |
| 164 | if self.end not in ('both', 'same', 'opposite', 'send', 'recv'): |
| 165 | raise ValueError(self.end) |
| 166 | else: |
| 167 | raise ValueError(self.action) |
| 168 | if self.interp not in ('main', 'same', 'other', 'extra'): |
| 169 | raise ValueError(self.interp) |
| 170 | |
| 171 | def resolve_end(self, end): |
| 172 | if self.end == 'same': |
| 173 | return end |
| 174 | elif self.end == 'opposite': |
| 175 | return 'recv' if end == 'send' else 'send' |
| 176 | else: |
| 177 | return self.end |
| 178 | |
| 179 | def resolve_interp(self, interp, other, extra): |
| 180 | if self.interp == 'same': |
| 181 | return interp |
| 182 | elif self.interp == 'other': |
| 183 | if other is None: |
| 184 | raise RuntimeError |
| 185 | return other |
| 186 | elif self.interp == 'extra': |
| 187 | if extra is None: |
| 188 | raise RuntimeError |
| 189 | return extra |
| 190 | elif self.interp == 'main': |
| 191 | if interp.name == 'main': |
| 192 | return interp |
| 193 | elif other and other.name == 'main': |
| 194 | return other |
| 195 | else: |
| 196 | raise RuntimeError |
| 197 | # Per __init__(), there aren't any others. |
| 198 | |
| 199 | |
| 200 | class ChannelState(namedtuple('ChannelState', 'pending closed')): |
| 201 | |
| 202 | def __new__(cls, pending=0, *, closed=False): |
| 203 | self = super().__new__(cls, pending, closed) |
| 204 | return self |
| 205 | |
| 206 | def incr(self): |
| 207 | return type(self)(self.pending + 1, closed=self.closed) |
| 208 | |
| 209 | def decr(self): |
| 210 | return type(self)(self.pending - 1, closed=self.closed) |
| 211 | |
| 212 | def close(self, *, force=True): |
| 213 | if self.closed: |
| 214 | if not force or self.pending == 0: |
| 215 | return self |
| 216 | return type(self)(0 if force else self.pending, closed=True) |
| 217 | |
| 218 | |
| 219 | def run_action(cid, action, end, state, *, hideclosed=True): |
| 220 | if state.closed: |
| 221 | if action == 'use' and end == 'recv' and state.pending: |
| 222 | expectfail = False |
| 223 | else: |
| 224 | expectfail = True |
| 225 | else: |
| 226 | expectfail = False |
| 227 | |
| 228 | try: |
| 229 | result = _run_action(cid, action, end, state) |
| 230 | except interpreters.ChannelClosedError: |
| 231 | if not hideclosed and not expectfail: |
| 232 | raise |
| 233 | result = state.close() |
| 234 | else: |
| 235 | if expectfail: |
| 236 | raise ... # XXX |
| 237 | return result |
| 238 | |
| 239 | |
| 240 | def _run_action(cid, action, end, state): |
| 241 | if action == 'use': |
| 242 | if end == 'send': |
| 243 | interpreters.channel_send(cid, b'spam') |
| 244 | return state.incr() |
| 245 | elif end == 'recv': |
| 246 | if not state.pending: |
| 247 | try: |
| 248 | interpreters.channel_recv(cid) |
| 249 | except interpreters.ChannelEmptyError: |
| 250 | return state |
| 251 | else: |
| 252 | raise Exception('expected ChannelEmptyError') |
| 253 | else: |
| 254 | interpreters.channel_recv(cid) |
| 255 | return state.decr() |
| 256 | else: |
| 257 | raise ValueError(end) |
| 258 | elif action == 'close': |
| 259 | kwargs = {} |
| 260 | if end in ('recv', 'send'): |
| 261 | kwargs[end] = True |
| 262 | interpreters.channel_close(cid, **kwargs) |
| 263 | return state.close() |
| 264 | elif action == 'force-close': |
| 265 | kwargs = { |
| 266 | 'force': True, |
| 267 | } |
| 268 | if end in ('recv', 'send'): |
| 269 | kwargs[end] = True |
| 270 | interpreters.channel_close(cid, **kwargs) |
| 271 | return state.close(force=True) |
| 272 | else: |
| 273 | raise ValueError(action) |
| 274 | |
| 275 | |
| 276 | def clean_up_interpreters(): |
| 277 | for id in interpreters.list_all(): |
| 278 | if id == 0: # main |
| 279 | continue |
| 280 | try: |
| 281 | interpreters.destroy(id) |
| 282 | except RuntimeError: |
| 283 | pass # already destroyed |
| 284 | |
| 285 | |
| 286 | def clean_up_channels(): |
| 287 | for cid in interpreters.channel_list_all(): |
| 288 | try: |
| 289 | interpreters.channel_destroy(cid) |
| 290 | except interpreters.ChannelNotFoundError: |
| 291 | pass # already destroyed |
| 292 | |
| 293 | |
| 294 | class TestBase(unittest.TestCase): |
| 295 | |
| 296 | def tearDown(self): |
| 297 | clean_up_interpreters() |
| 298 | clean_up_channels() |
| 299 | |
| 300 | |
| 301 | ################################## |
| 302 | # misc. tests |
| 303 | |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 304 | class IsShareableTests(unittest.TestCase): |
| 305 | |
| 306 | def test_default_shareables(self): |
| 307 | shareables = [ |
| 308 | # singletons |
| 309 | None, |
| 310 | # builtin objects |
| 311 | b'spam', |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 312 | 'spam', |
| 313 | 10, |
| 314 | -10, |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 315 | ] |
| 316 | for obj in shareables: |
| 317 | with self.subTest(obj): |
| 318 | self.assertTrue( |
| 319 | interpreters.is_shareable(obj)) |
| 320 | |
| 321 | def test_not_shareable(self): |
| 322 | class Cheese: |
| 323 | def __init__(self, name): |
| 324 | self.name = name |
| 325 | def __str__(self): |
| 326 | return self.name |
| 327 | |
| 328 | class SubBytes(bytes): |
| 329 | """A subclass of a shareable type.""" |
| 330 | |
| 331 | not_shareables = [ |
| 332 | # singletons |
| 333 | True, |
| 334 | False, |
| 335 | NotImplemented, |
| 336 | ..., |
| 337 | # builtin types and objects |
| 338 | type, |
| 339 | object, |
| 340 | object(), |
| 341 | Exception(), |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 342 | 100.0, |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 343 | # user-defined types and objects |
| 344 | Cheese, |
| 345 | Cheese('Wensleydale'), |
| 346 | SubBytes(b'spam'), |
| 347 | ] |
| 348 | for obj in not_shareables: |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 349 | with self.subTest(repr(obj)): |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 350 | self.assertFalse( |
| 351 | interpreters.is_shareable(obj)) |
| 352 | |
| 353 | |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 354 | class ShareableTypeTests(unittest.TestCase): |
| 355 | |
| 356 | def setUp(self): |
| 357 | super().setUp() |
| 358 | self.cid = interpreters.channel_create() |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 359 | |
| 360 | def tearDown(self): |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 361 | interpreters.channel_destroy(self.cid) |
| 362 | super().tearDown() |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 363 | |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 364 | def _assert_values(self, values): |
| 365 | for obj in values: |
| 366 | with self.subTest(obj): |
| 367 | interpreters.channel_send(self.cid, obj) |
| 368 | got = interpreters.channel_recv(self.cid) |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 369 | |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 370 | self.assertEqual(got, obj) |
| 371 | self.assertIs(type(got), type(obj)) |
| 372 | # XXX Check the following in the channel tests? |
| 373 | #self.assertIsNot(got, obj) |
| 374 | |
| 375 | def test_singletons(self): |
| 376 | for obj in [None]: |
| 377 | with self.subTest(obj): |
| 378 | interpreters.channel_send(self.cid, obj) |
| 379 | got = interpreters.channel_recv(self.cid) |
| 380 | |
| 381 | # XXX What about between interpreters? |
| 382 | self.assertIs(got, obj) |
| 383 | |
| 384 | def test_types(self): |
| 385 | self._assert_values([ |
| 386 | b'spam', |
| 387 | 9999, |
| 388 | self.cid, |
| 389 | ]) |
| 390 | |
| 391 | def test_bytes(self): |
| 392 | self._assert_values(i.to_bytes(2, 'little', signed=True) |
| 393 | for i in range(-1, 258)) |
| 394 | |
| 395 | def test_int(self): |
Alexey Izbyshev | 16f842d | 2019-02-12 19:06:43 +0300 | [diff] [blame] | 396 | self._assert_values(itertools.chain(range(-1, 258), |
| 397 | [sys.maxsize, -sys.maxsize - 1])) |
| 398 | |
| 399 | def test_non_shareable_int(self): |
| 400 | ints = [ |
| 401 | sys.maxsize + 1, |
| 402 | -sys.maxsize - 2, |
| 403 | 2**1000, |
| 404 | ] |
| 405 | for i in ints: |
| 406 | with self.subTest(i): |
| 407 | with self.assertRaises(OverflowError): |
| 408 | interpreters.channel_send(self.cid, i) |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 409 | |
| 410 | |
| 411 | ################################## |
| 412 | # interpreter tests |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 413 | |
| 414 | class ListAllTests(TestBase): |
| 415 | |
| 416 | def test_initial(self): |
| 417 | main = interpreters.get_main() |
| 418 | ids = interpreters.list_all() |
| 419 | self.assertEqual(ids, [main]) |
| 420 | |
| 421 | def test_after_creating(self): |
| 422 | main = interpreters.get_main() |
| 423 | first = interpreters.create() |
| 424 | second = interpreters.create() |
| 425 | ids = interpreters.list_all() |
| 426 | self.assertEqual(ids, [main, first, second]) |
| 427 | |
| 428 | def test_after_destroying(self): |
| 429 | main = interpreters.get_main() |
| 430 | first = interpreters.create() |
| 431 | second = interpreters.create() |
| 432 | interpreters.destroy(first) |
| 433 | ids = interpreters.list_all() |
| 434 | self.assertEqual(ids, [main, second]) |
| 435 | |
| 436 | |
| 437 | class GetCurrentTests(TestBase): |
| 438 | |
| 439 | def test_main(self): |
| 440 | main = interpreters.get_main() |
| 441 | cur = interpreters.get_current() |
| 442 | self.assertEqual(cur, main) |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 443 | self.assertIsInstance(cur, interpreters.InterpreterID) |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 444 | |
| 445 | def test_subinterpreter(self): |
| 446 | main = interpreters.get_main() |
| 447 | interp = interpreters.create() |
| 448 | out = _run_output(interp, dedent(""" |
| 449 | import _xxsubinterpreters as _interpreters |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 450 | cur = _interpreters.get_current() |
| 451 | print(cur) |
| 452 | assert isinstance(cur, _interpreters.InterpreterID) |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 453 | """)) |
| 454 | cur = int(out.strip()) |
| 455 | _, expected = interpreters.list_all() |
| 456 | self.assertEqual(cur, expected) |
| 457 | self.assertNotEqual(cur, main) |
| 458 | |
| 459 | |
| 460 | class GetMainTests(TestBase): |
| 461 | |
| 462 | def test_from_main(self): |
| 463 | [expected] = interpreters.list_all() |
| 464 | main = interpreters.get_main() |
| 465 | self.assertEqual(main, expected) |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 466 | self.assertIsInstance(main, interpreters.InterpreterID) |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 467 | |
| 468 | def test_from_subinterpreter(self): |
| 469 | [expected] = interpreters.list_all() |
| 470 | interp = interpreters.create() |
| 471 | out = _run_output(interp, dedent(""" |
| 472 | import _xxsubinterpreters as _interpreters |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 473 | main = _interpreters.get_main() |
| 474 | print(main) |
| 475 | assert isinstance(main, _interpreters.InterpreterID) |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 476 | """)) |
| 477 | main = int(out.strip()) |
| 478 | self.assertEqual(main, expected) |
| 479 | |
| 480 | |
| 481 | class IsRunningTests(TestBase): |
| 482 | |
| 483 | def test_main(self): |
| 484 | main = interpreters.get_main() |
| 485 | self.assertTrue(interpreters.is_running(main)) |
| 486 | |
| 487 | def test_subinterpreter(self): |
| 488 | interp = interpreters.create() |
| 489 | self.assertFalse(interpreters.is_running(interp)) |
| 490 | |
| 491 | with _running(interp): |
| 492 | self.assertTrue(interpreters.is_running(interp)) |
| 493 | self.assertFalse(interpreters.is_running(interp)) |
| 494 | |
| 495 | def test_from_subinterpreter(self): |
| 496 | interp = interpreters.create() |
| 497 | out = _run_output(interp, dedent(f""" |
| 498 | import _xxsubinterpreters as _interpreters |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 499 | if _interpreters.is_running({interp}): |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 500 | print(True) |
| 501 | else: |
| 502 | print(False) |
| 503 | """)) |
| 504 | self.assertEqual(out.strip(), 'True') |
| 505 | |
| 506 | def test_already_destroyed(self): |
| 507 | interp = interpreters.create() |
| 508 | interpreters.destroy(interp) |
| 509 | with self.assertRaises(RuntimeError): |
| 510 | interpreters.is_running(interp) |
| 511 | |
| 512 | def test_does_not_exist(self): |
| 513 | with self.assertRaises(RuntimeError): |
| 514 | interpreters.is_running(1_000_000) |
| 515 | |
| 516 | def test_bad_id(self): |
| 517 | with self.assertRaises(RuntimeError): |
| 518 | interpreters.is_running(-1) |
| 519 | |
| 520 | |
Eric Snow | 4c6955e | 2018-02-16 18:53:40 -0700 | [diff] [blame] | 521 | class InterpreterIDTests(TestBase): |
| 522 | |
| 523 | def test_with_int(self): |
| 524 | id = interpreters.InterpreterID(10, force=True) |
| 525 | |
| 526 | self.assertEqual(int(id), 10) |
| 527 | |
| 528 | def test_coerce_id(self): |
| 529 | id = interpreters.InterpreterID('10', force=True) |
| 530 | self.assertEqual(int(id), 10) |
| 531 | |
| 532 | id = interpreters.InterpreterID(10.0, force=True) |
| 533 | self.assertEqual(int(id), 10) |
| 534 | |
| 535 | class Int(str): |
| 536 | def __init__(self, value): |
| 537 | self._value = value |
| 538 | def __int__(self): |
| 539 | return self._value |
| 540 | |
| 541 | id = interpreters.InterpreterID(Int(10), force=True) |
| 542 | self.assertEqual(int(id), 10) |
| 543 | |
| 544 | def test_bad_id(self): |
| 545 | for id in [-1, 'spam']: |
| 546 | with self.subTest(id): |
| 547 | with self.assertRaises(ValueError): |
| 548 | interpreters.InterpreterID(id) |
| 549 | with self.assertRaises(OverflowError): |
| 550 | interpreters.InterpreterID(2**64) |
| 551 | with self.assertRaises(TypeError): |
| 552 | interpreters.InterpreterID(object()) |
| 553 | |
| 554 | def test_does_not_exist(self): |
| 555 | id = interpreters.channel_create() |
| 556 | with self.assertRaises(RuntimeError): |
| 557 | interpreters.InterpreterID(int(id) + 1) # unforced |
| 558 | |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 559 | def test_str(self): |
| 560 | id = interpreters.InterpreterID(10, force=True) |
| 561 | self.assertEqual(str(id), '10') |
| 562 | |
Eric Snow | 4c6955e | 2018-02-16 18:53:40 -0700 | [diff] [blame] | 563 | def test_repr(self): |
| 564 | id = interpreters.InterpreterID(10, force=True) |
| 565 | self.assertEqual(repr(id), 'InterpreterID(10)') |
| 566 | |
| 567 | def test_equality(self): |
| 568 | id1 = interpreters.create() |
| 569 | id2 = interpreters.InterpreterID(int(id1)) |
| 570 | id3 = interpreters.create() |
| 571 | |
| 572 | self.assertTrue(id1 == id1) |
| 573 | self.assertTrue(id1 == id2) |
| 574 | self.assertTrue(id1 == int(id1)) |
| 575 | self.assertFalse(id1 == id3) |
| 576 | |
| 577 | self.assertFalse(id1 != id1) |
| 578 | self.assertFalse(id1 != id2) |
| 579 | self.assertTrue(id1 != id3) |
| 580 | |
| 581 | |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 582 | class CreateTests(TestBase): |
| 583 | |
| 584 | def test_in_main(self): |
| 585 | id = interpreters.create() |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 586 | self.assertIsInstance(id, interpreters.InterpreterID) |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 587 | |
| 588 | self.assertIn(id, interpreters.list_all()) |
| 589 | |
| 590 | @unittest.skip('enable this test when working on pystate.c') |
| 591 | def test_unique_id(self): |
| 592 | seen = set() |
| 593 | for _ in range(100): |
| 594 | id = interpreters.create() |
| 595 | interpreters.destroy(id) |
| 596 | seen.add(id) |
| 597 | |
| 598 | self.assertEqual(len(seen), 100) |
| 599 | |
| 600 | def test_in_thread(self): |
| 601 | lock = threading.Lock() |
| 602 | id = None |
| 603 | def f(): |
| 604 | nonlocal id |
| 605 | id = interpreters.create() |
| 606 | lock.acquire() |
| 607 | lock.release() |
| 608 | |
| 609 | t = threading.Thread(target=f) |
| 610 | with lock: |
| 611 | t.start() |
| 612 | t.join() |
| 613 | self.assertIn(id, interpreters.list_all()) |
| 614 | |
| 615 | def test_in_subinterpreter(self): |
| 616 | main, = interpreters.list_all() |
| 617 | id1 = interpreters.create() |
| 618 | out = _run_output(id1, dedent(""" |
| 619 | import _xxsubinterpreters as _interpreters |
| 620 | id = _interpreters.create() |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 621 | print(id) |
| 622 | assert isinstance(id, _interpreters.InterpreterID) |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 623 | """)) |
| 624 | id2 = int(out.strip()) |
| 625 | |
| 626 | self.assertEqual(set(interpreters.list_all()), {main, id1, id2}) |
| 627 | |
| 628 | def test_in_threaded_subinterpreter(self): |
| 629 | main, = interpreters.list_all() |
| 630 | id1 = interpreters.create() |
| 631 | id2 = None |
| 632 | def f(): |
| 633 | nonlocal id2 |
| 634 | out = _run_output(id1, dedent(""" |
| 635 | import _xxsubinterpreters as _interpreters |
| 636 | id = _interpreters.create() |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 637 | print(id) |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 638 | """)) |
| 639 | id2 = int(out.strip()) |
| 640 | |
| 641 | t = threading.Thread(target=f) |
| 642 | t.start() |
| 643 | t.join() |
| 644 | |
| 645 | self.assertEqual(set(interpreters.list_all()), {main, id1, id2}) |
| 646 | |
| 647 | def test_after_destroy_all(self): |
| 648 | before = set(interpreters.list_all()) |
| 649 | # Create 3 subinterpreters. |
| 650 | ids = [] |
| 651 | for _ in range(3): |
| 652 | id = interpreters.create() |
| 653 | ids.append(id) |
| 654 | # Now destroy them. |
| 655 | for id in ids: |
| 656 | interpreters.destroy(id) |
| 657 | # Finally, create another. |
| 658 | id = interpreters.create() |
| 659 | self.assertEqual(set(interpreters.list_all()), before | {id}) |
| 660 | |
| 661 | def test_after_destroy_some(self): |
| 662 | before = set(interpreters.list_all()) |
| 663 | # Create 3 subinterpreters. |
| 664 | id1 = interpreters.create() |
| 665 | id2 = interpreters.create() |
| 666 | id3 = interpreters.create() |
| 667 | # Now destroy 2 of them. |
| 668 | interpreters.destroy(id1) |
| 669 | interpreters.destroy(id3) |
| 670 | # Finally, create another. |
| 671 | id = interpreters.create() |
| 672 | self.assertEqual(set(interpreters.list_all()), before | {id, id2}) |
| 673 | |
| 674 | |
| 675 | class DestroyTests(TestBase): |
| 676 | |
| 677 | def test_one(self): |
| 678 | id1 = interpreters.create() |
| 679 | id2 = interpreters.create() |
| 680 | id3 = interpreters.create() |
| 681 | self.assertIn(id2, interpreters.list_all()) |
| 682 | interpreters.destroy(id2) |
| 683 | self.assertNotIn(id2, interpreters.list_all()) |
| 684 | self.assertIn(id1, interpreters.list_all()) |
| 685 | self.assertIn(id3, interpreters.list_all()) |
| 686 | |
| 687 | def test_all(self): |
| 688 | before = set(interpreters.list_all()) |
| 689 | ids = set() |
| 690 | for _ in range(3): |
| 691 | id = interpreters.create() |
| 692 | ids.add(id) |
| 693 | self.assertEqual(set(interpreters.list_all()), before | ids) |
| 694 | for id in ids: |
| 695 | interpreters.destroy(id) |
| 696 | self.assertEqual(set(interpreters.list_all()), before) |
| 697 | |
| 698 | def test_main(self): |
| 699 | main, = interpreters.list_all() |
| 700 | with self.assertRaises(RuntimeError): |
| 701 | interpreters.destroy(main) |
| 702 | |
| 703 | def f(): |
| 704 | with self.assertRaises(RuntimeError): |
| 705 | interpreters.destroy(main) |
| 706 | |
| 707 | t = threading.Thread(target=f) |
| 708 | t.start() |
| 709 | t.join() |
| 710 | |
| 711 | def test_already_destroyed(self): |
| 712 | id = interpreters.create() |
| 713 | interpreters.destroy(id) |
| 714 | with self.assertRaises(RuntimeError): |
| 715 | interpreters.destroy(id) |
| 716 | |
| 717 | def test_does_not_exist(self): |
| 718 | with self.assertRaises(RuntimeError): |
| 719 | interpreters.destroy(1_000_000) |
| 720 | |
| 721 | def test_bad_id(self): |
| 722 | with self.assertRaises(RuntimeError): |
| 723 | interpreters.destroy(-1) |
| 724 | |
| 725 | def test_from_current(self): |
| 726 | main, = interpreters.list_all() |
| 727 | id = interpreters.create() |
Eric Snow | 4e9da0d | 2018-02-02 21:49:49 -0700 | [diff] [blame] | 728 | script = dedent(f""" |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 729 | import _xxsubinterpreters as _interpreters |
Eric Snow | 4e9da0d | 2018-02-02 21:49:49 -0700 | [diff] [blame] | 730 | try: |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 731 | _interpreters.destroy({id}) |
Eric Snow | 4e9da0d | 2018-02-02 21:49:49 -0700 | [diff] [blame] | 732 | except RuntimeError: |
| 733 | pass |
| 734 | """) |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 735 | |
Eric Snow | 4e9da0d | 2018-02-02 21:49:49 -0700 | [diff] [blame] | 736 | interpreters.run_string(id, script) |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 737 | self.assertEqual(set(interpreters.list_all()), {main, id}) |
| 738 | |
| 739 | def test_from_sibling(self): |
| 740 | main, = interpreters.list_all() |
| 741 | id1 = interpreters.create() |
| 742 | id2 = interpreters.create() |
Eric Snow | 4c6955e | 2018-02-16 18:53:40 -0700 | [diff] [blame] | 743 | script = dedent(f""" |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 744 | import _xxsubinterpreters as _interpreters |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 745 | _interpreters.destroy({id2}) |
Eric Snow | 4c6955e | 2018-02-16 18:53:40 -0700 | [diff] [blame] | 746 | """) |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 747 | interpreters.run_string(id1, script) |
| 748 | |
| 749 | self.assertEqual(set(interpreters.list_all()), {main, id1}) |
| 750 | |
| 751 | def test_from_other_thread(self): |
| 752 | id = interpreters.create() |
| 753 | def f(): |
| 754 | interpreters.destroy(id) |
| 755 | |
| 756 | t = threading.Thread(target=f) |
| 757 | t.start() |
| 758 | t.join() |
| 759 | |
| 760 | def test_still_running(self): |
| 761 | main, = interpreters.list_all() |
| 762 | interp = interpreters.create() |
| 763 | with _running(interp): |
| 764 | with self.assertRaises(RuntimeError): |
| 765 | interpreters.destroy(interp) |
| 766 | self.assertTrue(interpreters.is_running(interp)) |
| 767 | |
| 768 | |
| 769 | class RunStringTests(TestBase): |
| 770 | |
| 771 | SCRIPT = dedent(""" |
| 772 | with open('{}', 'w') as out: |
| 773 | out.write('{}') |
| 774 | """) |
| 775 | FILENAME = 'spam' |
| 776 | |
| 777 | def setUp(self): |
| 778 | super().setUp() |
| 779 | self.id = interpreters.create() |
| 780 | self._fs = None |
| 781 | |
| 782 | def tearDown(self): |
| 783 | if self._fs is not None: |
| 784 | self._fs.close() |
| 785 | super().tearDown() |
| 786 | |
| 787 | @property |
| 788 | def fs(self): |
| 789 | if self._fs is None: |
| 790 | self._fs = FSFixture(self) |
| 791 | return self._fs |
| 792 | |
| 793 | def test_success(self): |
| 794 | script, file = _captured_script('print("it worked!", end="")') |
| 795 | with file: |
| 796 | interpreters.run_string(self.id, script) |
| 797 | out = file.read() |
| 798 | |
| 799 | self.assertEqual(out, 'it worked!') |
| 800 | |
| 801 | def test_in_thread(self): |
| 802 | script, file = _captured_script('print("it worked!", end="")') |
| 803 | with file: |
| 804 | def f(): |
| 805 | interpreters.run_string(self.id, script) |
| 806 | |
| 807 | t = threading.Thread(target=f) |
| 808 | t.start() |
| 809 | t.join() |
| 810 | out = file.read() |
| 811 | |
| 812 | self.assertEqual(out, 'it worked!') |
| 813 | |
| 814 | def test_create_thread(self): |
| 815 | script, file = _captured_script(""" |
| 816 | import threading |
| 817 | def f(): |
| 818 | print('it worked!', end='') |
| 819 | |
| 820 | t = threading.Thread(target=f) |
| 821 | t.start() |
| 822 | t.join() |
| 823 | """) |
| 824 | with file: |
| 825 | interpreters.run_string(self.id, script) |
| 826 | out = file.read() |
| 827 | |
| 828 | self.assertEqual(out, 'it worked!') |
| 829 | |
| 830 | @unittest.skipUnless(hasattr(os, 'fork'), "test needs os.fork()") |
| 831 | def test_fork(self): |
| 832 | import tempfile |
| 833 | with tempfile.NamedTemporaryFile('w+') as file: |
| 834 | file.write('') |
| 835 | file.flush() |
| 836 | |
| 837 | expected = 'spam spam spam spam spam' |
| 838 | script = dedent(f""" |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 839 | import os |
Eric Snow | 5903296 | 2018-09-14 14:17:20 -0700 | [diff] [blame] | 840 | try: |
| 841 | os.fork() |
| 842 | except RuntimeError: |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 843 | with open('{file.name}', 'w') as out: |
| 844 | out.write('{expected}') |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 845 | """) |
| 846 | interpreters.run_string(self.id, script) |
| 847 | |
| 848 | file.seek(0) |
| 849 | content = file.read() |
| 850 | self.assertEqual(content, expected) |
| 851 | |
| 852 | def test_already_running(self): |
| 853 | with _running(self.id): |
| 854 | with self.assertRaises(RuntimeError): |
| 855 | interpreters.run_string(self.id, 'print("spam")') |
| 856 | |
| 857 | def test_does_not_exist(self): |
| 858 | id = 0 |
| 859 | while id in interpreters.list_all(): |
| 860 | id += 1 |
| 861 | with self.assertRaises(RuntimeError): |
| 862 | interpreters.run_string(id, 'print("spam")') |
| 863 | |
| 864 | def test_error_id(self): |
| 865 | with self.assertRaises(RuntimeError): |
| 866 | interpreters.run_string(-1, 'print("spam")') |
| 867 | |
| 868 | def test_bad_id(self): |
| 869 | with self.assertRaises(TypeError): |
| 870 | interpreters.run_string('spam', 'print("spam")') |
| 871 | |
| 872 | def test_bad_script(self): |
| 873 | with self.assertRaises(TypeError): |
| 874 | interpreters.run_string(self.id, 10) |
| 875 | |
| 876 | def test_bytes_for_script(self): |
| 877 | with self.assertRaises(TypeError): |
| 878 | interpreters.run_string(self.id, b'print("spam")') |
| 879 | |
| 880 | @contextlib.contextmanager |
| 881 | def assert_run_failed(self, exctype, msg=None): |
| 882 | with self.assertRaises(interpreters.RunFailedError) as caught: |
| 883 | yield |
| 884 | if msg is None: |
| 885 | self.assertEqual(str(caught.exception).split(':')[0], |
| 886 | str(exctype)) |
| 887 | else: |
| 888 | self.assertEqual(str(caught.exception), |
| 889 | "{}: {}".format(exctype, msg)) |
| 890 | |
| 891 | def test_invalid_syntax(self): |
| 892 | with self.assert_run_failed(SyntaxError): |
| 893 | # missing close paren |
| 894 | interpreters.run_string(self.id, 'print("spam"') |
| 895 | |
| 896 | def test_failure(self): |
| 897 | with self.assert_run_failed(Exception, 'spam'): |
| 898 | interpreters.run_string(self.id, 'raise Exception("spam")') |
| 899 | |
| 900 | def test_SystemExit(self): |
| 901 | with self.assert_run_failed(SystemExit, '42'): |
| 902 | interpreters.run_string(self.id, 'raise SystemExit(42)') |
| 903 | |
| 904 | def test_sys_exit(self): |
| 905 | with self.assert_run_failed(SystemExit): |
| 906 | interpreters.run_string(self.id, dedent(""" |
| 907 | import sys |
| 908 | sys.exit() |
| 909 | """)) |
| 910 | |
| 911 | with self.assert_run_failed(SystemExit, '42'): |
| 912 | interpreters.run_string(self.id, dedent(""" |
| 913 | import sys |
| 914 | sys.exit(42) |
| 915 | """)) |
| 916 | |
| 917 | def test_with_shared(self): |
| 918 | r, w = os.pipe() |
| 919 | |
| 920 | shared = { |
| 921 | 'spam': b'ham', |
| 922 | 'eggs': b'-1', |
| 923 | 'cheddar': None, |
| 924 | } |
| 925 | script = dedent(f""" |
| 926 | eggs = int(eggs) |
| 927 | spam = 42 |
| 928 | result = spam + eggs |
| 929 | |
| 930 | ns = dict(vars()) |
| 931 | del ns['__builtins__'] |
| 932 | import pickle |
| 933 | with open({w}, 'wb') as chan: |
| 934 | pickle.dump(ns, chan) |
| 935 | """) |
| 936 | interpreters.run_string(self.id, script, shared) |
| 937 | with open(r, 'rb') as chan: |
| 938 | ns = pickle.load(chan) |
| 939 | |
| 940 | self.assertEqual(ns['spam'], 42) |
| 941 | self.assertEqual(ns['eggs'], -1) |
| 942 | self.assertEqual(ns['result'], 41) |
| 943 | self.assertIsNone(ns['cheddar']) |
| 944 | |
| 945 | def test_shared_overwrites(self): |
| 946 | interpreters.run_string(self.id, dedent(""" |
| 947 | spam = 'eggs' |
| 948 | ns1 = dict(vars()) |
| 949 | del ns1['__builtins__'] |
| 950 | """)) |
| 951 | |
| 952 | shared = {'spam': b'ham'} |
| 953 | script = dedent(f""" |
| 954 | ns2 = dict(vars()) |
| 955 | del ns2['__builtins__'] |
| 956 | """) |
| 957 | interpreters.run_string(self.id, script, shared) |
| 958 | |
| 959 | r, w = os.pipe() |
| 960 | script = dedent(f""" |
| 961 | ns = dict(vars()) |
| 962 | del ns['__builtins__'] |
| 963 | import pickle |
| 964 | with open({w}, 'wb') as chan: |
| 965 | pickle.dump(ns, chan) |
| 966 | """) |
| 967 | interpreters.run_string(self.id, script) |
| 968 | with open(r, 'rb') as chan: |
| 969 | ns = pickle.load(chan) |
| 970 | |
| 971 | self.assertEqual(ns['ns1']['spam'], 'eggs') |
| 972 | self.assertEqual(ns['ns2']['spam'], b'ham') |
| 973 | self.assertEqual(ns['spam'], b'ham') |
| 974 | |
| 975 | def test_shared_overwrites_default_vars(self): |
| 976 | r, w = os.pipe() |
| 977 | |
| 978 | shared = {'__name__': b'not __main__'} |
| 979 | script = dedent(f""" |
| 980 | spam = 42 |
| 981 | |
| 982 | ns = dict(vars()) |
| 983 | del ns['__builtins__'] |
| 984 | import pickle |
| 985 | with open({w}, 'wb') as chan: |
| 986 | pickle.dump(ns, chan) |
| 987 | """) |
| 988 | interpreters.run_string(self.id, script, shared) |
| 989 | with open(r, 'rb') as chan: |
| 990 | ns = pickle.load(chan) |
| 991 | |
| 992 | self.assertEqual(ns['__name__'], b'not __main__') |
| 993 | |
| 994 | def test_main_reused(self): |
| 995 | r, w = os.pipe() |
| 996 | interpreters.run_string(self.id, dedent(f""" |
| 997 | spam = True |
| 998 | |
| 999 | ns = dict(vars()) |
| 1000 | del ns['__builtins__'] |
| 1001 | import pickle |
| 1002 | with open({w}, 'wb') as chan: |
| 1003 | pickle.dump(ns, chan) |
| 1004 | del ns, pickle, chan |
| 1005 | """)) |
| 1006 | with open(r, 'rb') as chan: |
| 1007 | ns1 = pickle.load(chan) |
| 1008 | |
| 1009 | r, w = os.pipe() |
| 1010 | interpreters.run_string(self.id, dedent(f""" |
| 1011 | eggs = False |
| 1012 | |
| 1013 | ns = dict(vars()) |
| 1014 | del ns['__builtins__'] |
| 1015 | import pickle |
| 1016 | with open({w}, 'wb') as chan: |
| 1017 | pickle.dump(ns, chan) |
| 1018 | """)) |
| 1019 | with open(r, 'rb') as chan: |
| 1020 | ns2 = pickle.load(chan) |
| 1021 | |
| 1022 | self.assertIn('spam', ns1) |
| 1023 | self.assertNotIn('eggs', ns1) |
| 1024 | self.assertIn('eggs', ns2) |
| 1025 | self.assertIn('spam', ns2) |
| 1026 | |
| 1027 | def test_execution_namespace_is_main(self): |
| 1028 | r, w = os.pipe() |
| 1029 | |
| 1030 | script = dedent(f""" |
| 1031 | spam = 42 |
| 1032 | |
| 1033 | ns = dict(vars()) |
| 1034 | ns['__builtins__'] = str(ns['__builtins__']) |
| 1035 | import pickle |
| 1036 | with open({w}, 'wb') as chan: |
| 1037 | pickle.dump(ns, chan) |
| 1038 | """) |
| 1039 | interpreters.run_string(self.id, script) |
| 1040 | with open(r, 'rb') as chan: |
| 1041 | ns = pickle.load(chan) |
| 1042 | |
| 1043 | ns.pop('__builtins__') |
| 1044 | ns.pop('__loader__') |
| 1045 | self.assertEqual(ns, { |
| 1046 | '__name__': '__main__', |
| 1047 | '__annotations__': {}, |
| 1048 | '__doc__': None, |
| 1049 | '__package__': None, |
| 1050 | '__spec__': None, |
| 1051 | 'spam': 42, |
| 1052 | }) |
| 1053 | |
Eric Snow | 4c6955e | 2018-02-16 18:53:40 -0700 | [diff] [blame] | 1054 | # XXX Fix this test! |
| 1055 | @unittest.skip('blocking forever') |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 1056 | def test_still_running_at_exit(self): |
| 1057 | script = dedent(f""" |
| 1058 | from textwrap import dedent |
| 1059 | import threading |
| 1060 | import _xxsubinterpreters as _interpreters |
Eric Snow | 4c6955e | 2018-02-16 18:53:40 -0700 | [diff] [blame] | 1061 | id = _interpreters.create() |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 1062 | def f(): |
| 1063 | _interpreters.run_string(id, dedent(''' |
| 1064 | import time |
| 1065 | # Give plenty of time for the main interpreter to finish. |
| 1066 | time.sleep(1_000_000) |
| 1067 | ''')) |
| 1068 | |
| 1069 | t = threading.Thread(target=f) |
| 1070 | t.start() |
| 1071 | """) |
| 1072 | with support.temp_dir() as dirname: |
| 1073 | filename = script_helper.make_script(dirname, 'interp', script) |
| 1074 | with script_helper.spawn_python(filename) as proc: |
| 1075 | retcode = proc.wait() |
| 1076 | |
| 1077 | self.assertEqual(retcode, 0) |
| 1078 | |
| 1079 | |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 1080 | ################################## |
| 1081 | # channel tests |
| 1082 | |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 1083 | class ChannelIDTests(TestBase): |
| 1084 | |
| 1085 | def test_default_kwargs(self): |
| 1086 | cid = interpreters._channel_id(10, force=True) |
| 1087 | |
| 1088 | self.assertEqual(int(cid), 10) |
| 1089 | self.assertEqual(cid.end, 'both') |
| 1090 | |
| 1091 | def test_with_kwargs(self): |
| 1092 | cid = interpreters._channel_id(10, send=True, force=True) |
| 1093 | self.assertEqual(cid.end, 'send') |
| 1094 | |
| 1095 | cid = interpreters._channel_id(10, send=True, recv=False, force=True) |
| 1096 | self.assertEqual(cid.end, 'send') |
| 1097 | |
| 1098 | cid = interpreters._channel_id(10, recv=True, force=True) |
| 1099 | self.assertEqual(cid.end, 'recv') |
| 1100 | |
| 1101 | cid = interpreters._channel_id(10, recv=True, send=False, force=True) |
| 1102 | self.assertEqual(cid.end, 'recv') |
| 1103 | |
| 1104 | cid = interpreters._channel_id(10, send=True, recv=True, force=True) |
| 1105 | self.assertEqual(cid.end, 'both') |
| 1106 | |
| 1107 | def test_coerce_id(self): |
| 1108 | cid = interpreters._channel_id('10', force=True) |
| 1109 | self.assertEqual(int(cid), 10) |
| 1110 | |
| 1111 | cid = interpreters._channel_id(10.0, force=True) |
| 1112 | self.assertEqual(int(cid), 10) |
| 1113 | |
| 1114 | class Int(str): |
| 1115 | def __init__(self, value): |
| 1116 | self._value = value |
| 1117 | def __int__(self): |
| 1118 | return self._value |
| 1119 | |
| 1120 | cid = interpreters._channel_id(Int(10), force=True) |
| 1121 | self.assertEqual(int(cid), 10) |
| 1122 | |
| 1123 | def test_bad_id(self): |
Eric Snow | 4e9da0d | 2018-02-02 21:49:49 -0700 | [diff] [blame] | 1124 | for cid in [-1, 'spam']: |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 1125 | with self.subTest(cid): |
| 1126 | with self.assertRaises(ValueError): |
| 1127 | interpreters._channel_id(cid) |
Eric Snow | 4e9da0d | 2018-02-02 21:49:49 -0700 | [diff] [blame] | 1128 | with self.assertRaises(OverflowError): |
| 1129 | interpreters._channel_id(2**64) |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 1130 | with self.assertRaises(TypeError): |
| 1131 | interpreters._channel_id(object()) |
| 1132 | |
| 1133 | def test_bad_kwargs(self): |
| 1134 | with self.assertRaises(ValueError): |
| 1135 | interpreters._channel_id(10, send=False, recv=False) |
| 1136 | |
| 1137 | def test_does_not_exist(self): |
| 1138 | cid = interpreters.channel_create() |
| 1139 | with self.assertRaises(interpreters.ChannelNotFoundError): |
| 1140 | interpreters._channel_id(int(cid) + 1) # unforced |
| 1141 | |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 1142 | def test_str(self): |
| 1143 | cid = interpreters._channel_id(10, force=True) |
| 1144 | self.assertEqual(str(cid), '10') |
| 1145 | |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 1146 | def test_repr(self): |
| 1147 | cid = interpreters._channel_id(10, force=True) |
| 1148 | self.assertEqual(repr(cid), 'ChannelID(10)') |
| 1149 | |
| 1150 | cid = interpreters._channel_id(10, send=True, force=True) |
| 1151 | self.assertEqual(repr(cid), 'ChannelID(10, send=True)') |
| 1152 | |
| 1153 | cid = interpreters._channel_id(10, recv=True, force=True) |
| 1154 | self.assertEqual(repr(cid), 'ChannelID(10, recv=True)') |
| 1155 | |
| 1156 | cid = interpreters._channel_id(10, send=True, recv=True, force=True) |
| 1157 | self.assertEqual(repr(cid), 'ChannelID(10)') |
| 1158 | |
| 1159 | def test_equality(self): |
| 1160 | cid1 = interpreters.channel_create() |
| 1161 | cid2 = interpreters._channel_id(int(cid1)) |
| 1162 | cid3 = interpreters.channel_create() |
| 1163 | |
| 1164 | self.assertTrue(cid1 == cid1) |
| 1165 | self.assertTrue(cid1 == cid2) |
| 1166 | self.assertTrue(cid1 == int(cid1)) |
| 1167 | self.assertFalse(cid1 == cid3) |
| 1168 | |
| 1169 | self.assertFalse(cid1 != cid1) |
| 1170 | self.assertFalse(cid1 != cid2) |
| 1171 | self.assertTrue(cid1 != cid3) |
| 1172 | |
| 1173 | |
| 1174 | class ChannelTests(TestBase): |
| 1175 | |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 1176 | def test_create_cid(self): |
| 1177 | cid = interpreters.channel_create() |
| 1178 | self.assertIsInstance(cid, interpreters.ChannelID) |
| 1179 | |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 1180 | def test_sequential_ids(self): |
| 1181 | before = interpreters.channel_list_all() |
| 1182 | id1 = interpreters.channel_create() |
| 1183 | id2 = interpreters.channel_create() |
| 1184 | id3 = interpreters.channel_create() |
| 1185 | after = interpreters.channel_list_all() |
| 1186 | |
| 1187 | self.assertEqual(id2, int(id1) + 1) |
| 1188 | self.assertEqual(id3, int(id2) + 1) |
| 1189 | self.assertEqual(set(after) - set(before), {id1, id2, id3}) |
| 1190 | |
| 1191 | def test_ids_global(self): |
| 1192 | id1 = interpreters.create() |
| 1193 | out = _run_output(id1, dedent(""" |
| 1194 | import _xxsubinterpreters as _interpreters |
| 1195 | cid = _interpreters.channel_create() |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 1196 | print(cid) |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 1197 | """)) |
| 1198 | cid1 = int(out.strip()) |
| 1199 | |
| 1200 | id2 = interpreters.create() |
| 1201 | out = _run_output(id2, dedent(""" |
| 1202 | import _xxsubinterpreters as _interpreters |
| 1203 | cid = _interpreters.channel_create() |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 1204 | print(cid) |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 1205 | """)) |
| 1206 | cid2 = int(out.strip()) |
| 1207 | |
| 1208 | self.assertEqual(cid2, int(cid1) + 1) |
| 1209 | |
| 1210 | #################### |
| 1211 | |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 1212 | def test_send_recv_main(self): |
| 1213 | cid = interpreters.channel_create() |
| 1214 | orig = b'spam' |
| 1215 | interpreters.channel_send(cid, orig) |
| 1216 | obj = interpreters.channel_recv(cid) |
| 1217 | |
| 1218 | self.assertEqual(obj, orig) |
| 1219 | self.assertIsNot(obj, orig) |
| 1220 | |
| 1221 | def test_send_recv_same_interpreter(self): |
| 1222 | id1 = interpreters.create() |
| 1223 | out = _run_output(id1, dedent(""" |
| 1224 | import _xxsubinterpreters as _interpreters |
| 1225 | cid = _interpreters.channel_create() |
| 1226 | orig = b'spam' |
| 1227 | _interpreters.channel_send(cid, orig) |
| 1228 | obj = _interpreters.channel_recv(cid) |
| 1229 | assert obj is not orig |
| 1230 | assert obj == orig |
| 1231 | """)) |
| 1232 | |
| 1233 | def test_send_recv_different_interpreters(self): |
| 1234 | cid = interpreters.channel_create() |
| 1235 | id1 = interpreters.create() |
| 1236 | out = _run_output(id1, dedent(f""" |
| 1237 | import _xxsubinterpreters as _interpreters |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 1238 | _interpreters.channel_send({cid}, b'spam') |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 1239 | """)) |
| 1240 | obj = interpreters.channel_recv(cid) |
| 1241 | |
| 1242 | self.assertEqual(obj, b'spam') |
| 1243 | |
Eric Snow | f53d9f2 | 2018-02-20 16:30:17 -0700 | [diff] [blame] | 1244 | def test_send_recv_different_threads(self): |
| 1245 | cid = interpreters.channel_create() |
| 1246 | |
| 1247 | def f(): |
| 1248 | while True: |
| 1249 | try: |
| 1250 | obj = interpreters.channel_recv(cid) |
| 1251 | break |
| 1252 | except interpreters.ChannelEmptyError: |
| 1253 | time.sleep(0.1) |
| 1254 | interpreters.channel_send(cid, obj) |
| 1255 | t = threading.Thread(target=f) |
| 1256 | t.start() |
| 1257 | |
| 1258 | interpreters.channel_send(cid, b'spam') |
| 1259 | t.join() |
| 1260 | obj = interpreters.channel_recv(cid) |
| 1261 | |
| 1262 | self.assertEqual(obj, b'spam') |
| 1263 | |
| 1264 | def test_send_recv_different_interpreters_and_threads(self): |
| 1265 | cid = interpreters.channel_create() |
| 1266 | id1 = interpreters.create() |
| 1267 | out = None |
| 1268 | |
| 1269 | def f(): |
| 1270 | nonlocal out |
| 1271 | out = _run_output(id1, dedent(f""" |
| 1272 | import time |
| 1273 | import _xxsubinterpreters as _interpreters |
| 1274 | while True: |
| 1275 | try: |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 1276 | obj = _interpreters.channel_recv({cid}) |
Eric Snow | f53d9f2 | 2018-02-20 16:30:17 -0700 | [diff] [blame] | 1277 | break |
| 1278 | except _interpreters.ChannelEmptyError: |
| 1279 | time.sleep(0.1) |
| 1280 | assert(obj == b'spam') |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 1281 | _interpreters.channel_send({cid}, b'eggs') |
Eric Snow | f53d9f2 | 2018-02-20 16:30:17 -0700 | [diff] [blame] | 1282 | """)) |
| 1283 | t = threading.Thread(target=f) |
| 1284 | t.start() |
| 1285 | |
| 1286 | interpreters.channel_send(cid, b'spam') |
| 1287 | t.join() |
| 1288 | obj = interpreters.channel_recv(cid) |
| 1289 | |
| 1290 | self.assertEqual(obj, b'eggs') |
| 1291 | |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 1292 | def test_send_not_found(self): |
| 1293 | with self.assertRaises(interpreters.ChannelNotFoundError): |
| 1294 | interpreters.channel_send(10, b'spam') |
| 1295 | |
| 1296 | def test_recv_not_found(self): |
| 1297 | with self.assertRaises(interpreters.ChannelNotFoundError): |
| 1298 | interpreters.channel_recv(10) |
| 1299 | |
| 1300 | def test_recv_empty(self): |
| 1301 | cid = interpreters.channel_create() |
| 1302 | with self.assertRaises(interpreters.ChannelEmptyError): |
| 1303 | interpreters.channel_recv(cid) |
| 1304 | |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 1305 | def test_run_string_arg_unresolved(self): |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 1306 | cid = interpreters.channel_create() |
| 1307 | interp = interpreters.create() |
| 1308 | |
| 1309 | out = _run_output(interp, dedent(""" |
| 1310 | import _xxsubinterpreters as _interpreters |
| 1311 | print(cid.end) |
| 1312 | _interpreters.channel_send(cid, b'spam') |
| 1313 | """), |
| 1314 | dict(cid=cid.send)) |
| 1315 | obj = interpreters.channel_recv(cid) |
| 1316 | |
| 1317 | self.assertEqual(obj, b'spam') |
| 1318 | self.assertEqual(out.strip(), 'send') |
| 1319 | |
Eric Snow | ab4a198 | 2018-06-13 08:02:39 -0600 | [diff] [blame] | 1320 | # XXX For now there is no high-level channel into which the |
| 1321 | # sent channel ID can be converted... |
| 1322 | # Note: this test caused crashes on some buildbots (bpo-33615). |
| 1323 | @unittest.skip('disabled until high-level channels exist') |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 1324 | def test_run_string_arg_resolved(self): |
| 1325 | cid = interpreters.channel_create() |
| 1326 | cid = interpreters._channel_id(cid, _resolve=True) |
| 1327 | interp = interpreters.create() |
| 1328 | |
| 1329 | out = _run_output(interp, dedent(""" |
| 1330 | import _xxsubinterpreters as _interpreters |
Eric Snow | ab4a198 | 2018-06-13 08:02:39 -0600 | [diff] [blame] | 1331 | print(chan.id.end) |
| 1332 | _interpreters.channel_send(chan.id, b'spam') |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 1333 | """), |
| 1334 | dict(chan=cid.send)) |
| 1335 | obj = interpreters.channel_recv(cid) |
| 1336 | |
| 1337 | self.assertEqual(obj, b'spam') |
| 1338 | self.assertEqual(out.strip(), 'send') |
| 1339 | |
| 1340 | # close |
| 1341 | |
| 1342 | def test_close_single_user(self): |
| 1343 | cid = interpreters.channel_create() |
| 1344 | interpreters.channel_send(cid, b'spam') |
| 1345 | interpreters.channel_recv(cid) |
| 1346 | interpreters.channel_close(cid) |
| 1347 | |
| 1348 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1349 | interpreters.channel_send(cid, b'eggs') |
| 1350 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1351 | interpreters.channel_recv(cid) |
| 1352 | |
| 1353 | def test_close_multiple_users(self): |
| 1354 | cid = interpreters.channel_create() |
| 1355 | id1 = interpreters.create() |
| 1356 | id2 = interpreters.create() |
| 1357 | interpreters.run_string(id1, dedent(f""" |
| 1358 | import _xxsubinterpreters as _interpreters |
| 1359 | _interpreters.channel_send({cid}, b'spam') |
| 1360 | """)) |
| 1361 | interpreters.run_string(id2, dedent(f""" |
| 1362 | import _xxsubinterpreters as _interpreters |
| 1363 | _interpreters.channel_recv({cid}) |
| 1364 | """)) |
| 1365 | interpreters.channel_close(cid) |
| 1366 | with self.assertRaises(interpreters.RunFailedError) as cm: |
| 1367 | interpreters.run_string(id1, dedent(f""" |
| 1368 | _interpreters.channel_send({cid}, b'spam') |
| 1369 | """)) |
| 1370 | self.assertIn('ChannelClosedError', str(cm.exception)) |
| 1371 | with self.assertRaises(interpreters.RunFailedError) as cm: |
| 1372 | interpreters.run_string(id2, dedent(f""" |
| 1373 | _interpreters.channel_send({cid}, b'spam') |
| 1374 | """)) |
| 1375 | self.assertIn('ChannelClosedError', str(cm.exception)) |
| 1376 | |
| 1377 | def test_close_multiple_times(self): |
| 1378 | cid = interpreters.channel_create() |
| 1379 | interpreters.channel_send(cid, b'spam') |
| 1380 | interpreters.channel_recv(cid) |
| 1381 | interpreters.channel_close(cid) |
| 1382 | |
| 1383 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1384 | interpreters.channel_close(cid) |
| 1385 | |
Eric Snow | 3ab0136 | 2018-05-17 10:27:09 -0400 | [diff] [blame] | 1386 | def test_close_empty(self): |
| 1387 | tests = [ |
| 1388 | (False, False), |
| 1389 | (True, False), |
| 1390 | (False, True), |
| 1391 | (True, True), |
| 1392 | ] |
| 1393 | for send, recv in tests: |
| 1394 | with self.subTest((send, recv)): |
| 1395 | cid = interpreters.channel_create() |
| 1396 | interpreters.channel_send(cid, b'spam') |
| 1397 | interpreters.channel_recv(cid) |
| 1398 | interpreters.channel_close(cid, send=send, recv=recv) |
| 1399 | |
| 1400 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1401 | interpreters.channel_send(cid, b'eggs') |
| 1402 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1403 | interpreters.channel_recv(cid) |
| 1404 | |
| 1405 | def test_close_defaults_with_unused_items(self): |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 1406 | cid = interpreters.channel_create() |
| 1407 | interpreters.channel_send(cid, b'spam') |
| 1408 | interpreters.channel_send(cid, b'ham') |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 1409 | |
Eric Snow | 3ab0136 | 2018-05-17 10:27:09 -0400 | [diff] [blame] | 1410 | with self.assertRaises(interpreters.ChannelNotEmptyError): |
| 1411 | interpreters.channel_close(cid) |
| 1412 | interpreters.channel_recv(cid) |
| 1413 | interpreters.channel_send(cid, b'eggs') |
| 1414 | |
| 1415 | def test_close_recv_with_unused_items_unforced(self): |
| 1416 | cid = interpreters.channel_create() |
| 1417 | interpreters.channel_send(cid, b'spam') |
| 1418 | interpreters.channel_send(cid, b'ham') |
| 1419 | |
| 1420 | with self.assertRaises(interpreters.ChannelNotEmptyError): |
| 1421 | interpreters.channel_close(cid, recv=True) |
| 1422 | interpreters.channel_recv(cid) |
| 1423 | interpreters.channel_send(cid, b'eggs') |
| 1424 | interpreters.channel_recv(cid) |
| 1425 | interpreters.channel_recv(cid) |
| 1426 | interpreters.channel_close(cid, recv=True) |
| 1427 | |
| 1428 | def test_close_send_with_unused_items_unforced(self): |
| 1429 | cid = interpreters.channel_create() |
| 1430 | interpreters.channel_send(cid, b'spam') |
| 1431 | interpreters.channel_send(cid, b'ham') |
| 1432 | interpreters.channel_close(cid, send=True) |
| 1433 | |
| 1434 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1435 | interpreters.channel_send(cid, b'eggs') |
| 1436 | interpreters.channel_recv(cid) |
| 1437 | interpreters.channel_recv(cid) |
| 1438 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1439 | interpreters.channel_recv(cid) |
| 1440 | |
| 1441 | def test_close_both_with_unused_items_unforced(self): |
| 1442 | cid = interpreters.channel_create() |
| 1443 | interpreters.channel_send(cid, b'spam') |
| 1444 | interpreters.channel_send(cid, b'ham') |
| 1445 | |
| 1446 | with self.assertRaises(interpreters.ChannelNotEmptyError): |
| 1447 | interpreters.channel_close(cid, recv=True, send=True) |
| 1448 | interpreters.channel_recv(cid) |
| 1449 | interpreters.channel_send(cid, b'eggs') |
| 1450 | interpreters.channel_recv(cid) |
| 1451 | interpreters.channel_recv(cid) |
| 1452 | interpreters.channel_close(cid, recv=True) |
| 1453 | |
| 1454 | def test_close_recv_with_unused_items_forced(self): |
| 1455 | cid = interpreters.channel_create() |
| 1456 | interpreters.channel_send(cid, b'spam') |
| 1457 | interpreters.channel_send(cid, b'ham') |
| 1458 | interpreters.channel_close(cid, recv=True, force=True) |
| 1459 | |
| 1460 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1461 | interpreters.channel_send(cid, b'eggs') |
| 1462 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1463 | interpreters.channel_recv(cid) |
| 1464 | |
| 1465 | def test_close_send_with_unused_items_forced(self): |
| 1466 | cid = interpreters.channel_create() |
| 1467 | interpreters.channel_send(cid, b'spam') |
| 1468 | interpreters.channel_send(cid, b'ham') |
| 1469 | interpreters.channel_close(cid, send=True, force=True) |
| 1470 | |
| 1471 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1472 | interpreters.channel_send(cid, b'eggs') |
| 1473 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1474 | interpreters.channel_recv(cid) |
| 1475 | |
| 1476 | def test_close_both_with_unused_items_forced(self): |
| 1477 | cid = interpreters.channel_create() |
| 1478 | interpreters.channel_send(cid, b'spam') |
| 1479 | interpreters.channel_send(cid, b'ham') |
| 1480 | interpreters.channel_close(cid, send=True, recv=True, force=True) |
| 1481 | |
| 1482 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1483 | interpreters.channel_send(cid, b'eggs') |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 1484 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1485 | interpreters.channel_recv(cid) |
| 1486 | |
| 1487 | def test_close_never_used(self): |
| 1488 | cid = interpreters.channel_create() |
| 1489 | interpreters.channel_close(cid) |
| 1490 | |
| 1491 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1492 | interpreters.channel_send(cid, b'spam') |
| 1493 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1494 | interpreters.channel_recv(cid) |
| 1495 | |
| 1496 | def test_close_by_unassociated_interp(self): |
| 1497 | cid = interpreters.channel_create() |
| 1498 | interpreters.channel_send(cid, b'spam') |
| 1499 | interp = interpreters.create() |
| 1500 | interpreters.run_string(interp, dedent(f""" |
| 1501 | import _xxsubinterpreters as _interpreters |
Eric Snow | 3ab0136 | 2018-05-17 10:27:09 -0400 | [diff] [blame] | 1502 | _interpreters.channel_close({cid}, force=True) |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 1503 | """)) |
| 1504 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1505 | interpreters.channel_recv(cid) |
| 1506 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1507 | interpreters.channel_close(cid) |
| 1508 | |
| 1509 | def test_close_used_multiple_times_by_single_user(self): |
| 1510 | cid = interpreters.channel_create() |
| 1511 | interpreters.channel_send(cid, b'spam') |
| 1512 | interpreters.channel_send(cid, b'spam') |
| 1513 | interpreters.channel_send(cid, b'spam') |
| 1514 | interpreters.channel_recv(cid) |
Eric Snow | 3ab0136 | 2018-05-17 10:27:09 -0400 | [diff] [blame] | 1515 | interpreters.channel_close(cid, force=True) |
Eric Snow | 6d2cd90 | 2018-05-16 15:04:57 -0400 | [diff] [blame] | 1516 | |
| 1517 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1518 | interpreters.channel_send(cid, b'eggs') |
| 1519 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1520 | interpreters.channel_recv(cid) |
| 1521 | |
| 1522 | |
| 1523 | class ChannelReleaseTests(TestBase): |
| 1524 | |
| 1525 | # XXX Add more test coverage a la the tests for close(). |
| 1526 | |
| 1527 | """ |
| 1528 | - main / interp / other |
| 1529 | - run in: current thread / new thread / other thread / different threads |
| 1530 | - end / opposite |
| 1531 | - force / no force |
| 1532 | - used / not used (associated / not associated) |
| 1533 | - empty / emptied / never emptied / partly emptied |
| 1534 | - closed / not closed |
| 1535 | - released / not released |
| 1536 | - creator (interp) / other |
| 1537 | - associated interpreter not running |
| 1538 | - associated interpreter destroyed |
| 1539 | """ |
| 1540 | |
| 1541 | """ |
| 1542 | use |
| 1543 | pre-release |
| 1544 | release |
| 1545 | after |
| 1546 | check |
| 1547 | """ |
| 1548 | |
| 1549 | """ |
| 1550 | release in: main, interp1 |
| 1551 | creator: same, other (incl. interp2) |
| 1552 | |
| 1553 | use: None,send,recv,send/recv in None,same,other(incl. interp2),same+other(incl. interp2),all |
| 1554 | pre-release: None,send,recv,both in None,same,other(incl. interp2),same+other(incl. interp2),all |
| 1555 | pre-release forced: None,send,recv,both in None,same,other(incl. interp2),same+other(incl. interp2),all |
| 1556 | |
| 1557 | release: same |
| 1558 | release forced: same |
| 1559 | |
| 1560 | use after: None,send,recv,send/recv in None,same,other(incl. interp2),same+other(incl. interp2),all |
| 1561 | release after: None,send,recv,send/recv in None,same,other(incl. interp2),same+other(incl. interp2),all |
| 1562 | check released: send/recv for same/other(incl. interp2) |
| 1563 | check closed: send/recv for same/other(incl. interp2) |
| 1564 | """ |
| 1565 | |
| 1566 | def test_single_user(self): |
| 1567 | cid = interpreters.channel_create() |
| 1568 | interpreters.channel_send(cid, b'spam') |
| 1569 | interpreters.channel_recv(cid) |
| 1570 | interpreters.channel_release(cid, send=True, recv=True) |
| 1571 | |
| 1572 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1573 | interpreters.channel_send(cid, b'eggs') |
| 1574 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1575 | interpreters.channel_recv(cid) |
| 1576 | |
| 1577 | def test_multiple_users(self): |
| 1578 | cid = interpreters.channel_create() |
| 1579 | id1 = interpreters.create() |
| 1580 | id2 = interpreters.create() |
| 1581 | interpreters.run_string(id1, dedent(f""" |
| 1582 | import _xxsubinterpreters as _interpreters |
| 1583 | _interpreters.channel_send({cid}, b'spam') |
| 1584 | """)) |
| 1585 | out = _run_output(id2, dedent(f""" |
| 1586 | import _xxsubinterpreters as _interpreters |
| 1587 | obj = _interpreters.channel_recv({cid}) |
| 1588 | _interpreters.channel_release({cid}) |
| 1589 | print(repr(obj)) |
| 1590 | """)) |
| 1591 | interpreters.run_string(id1, dedent(f""" |
| 1592 | _interpreters.channel_release({cid}) |
| 1593 | """)) |
| 1594 | |
| 1595 | self.assertEqual(out.strip(), "b'spam'") |
| 1596 | |
| 1597 | def test_no_kwargs(self): |
| 1598 | cid = interpreters.channel_create() |
| 1599 | interpreters.channel_send(cid, b'spam') |
| 1600 | interpreters.channel_recv(cid) |
| 1601 | interpreters.channel_release(cid) |
| 1602 | |
| 1603 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1604 | interpreters.channel_send(cid, b'eggs') |
| 1605 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1606 | interpreters.channel_recv(cid) |
| 1607 | |
| 1608 | def test_multiple_times(self): |
| 1609 | cid = interpreters.channel_create() |
| 1610 | interpreters.channel_send(cid, b'spam') |
| 1611 | interpreters.channel_recv(cid) |
| 1612 | interpreters.channel_release(cid, send=True, recv=True) |
| 1613 | |
| 1614 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1615 | interpreters.channel_release(cid, send=True, recv=True) |
| 1616 | |
| 1617 | def test_with_unused_items(self): |
| 1618 | cid = interpreters.channel_create() |
| 1619 | interpreters.channel_send(cid, b'spam') |
| 1620 | interpreters.channel_send(cid, b'ham') |
| 1621 | interpreters.channel_release(cid, send=True, recv=True) |
| 1622 | |
| 1623 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1624 | interpreters.channel_recv(cid) |
| 1625 | |
| 1626 | def test_never_used(self): |
| 1627 | cid = interpreters.channel_create() |
| 1628 | interpreters.channel_release(cid) |
| 1629 | |
| 1630 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1631 | interpreters.channel_send(cid, b'spam') |
| 1632 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1633 | interpreters.channel_recv(cid) |
| 1634 | |
| 1635 | def test_by_unassociated_interp(self): |
| 1636 | cid = interpreters.channel_create() |
| 1637 | interpreters.channel_send(cid, b'spam') |
| 1638 | interp = interpreters.create() |
| 1639 | interpreters.run_string(interp, dedent(f""" |
| 1640 | import _xxsubinterpreters as _interpreters |
| 1641 | _interpreters.channel_release({cid}) |
| 1642 | """)) |
| 1643 | obj = interpreters.channel_recv(cid) |
| 1644 | interpreters.channel_release(cid) |
| 1645 | |
| 1646 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1647 | interpreters.channel_send(cid, b'eggs') |
| 1648 | self.assertEqual(obj, b'spam') |
| 1649 | |
| 1650 | def test_close_if_unassociated(self): |
| 1651 | # XXX Something's not right with this test... |
| 1652 | cid = interpreters.channel_create() |
| 1653 | interp = interpreters.create() |
| 1654 | interpreters.run_string(interp, dedent(f""" |
| 1655 | import _xxsubinterpreters as _interpreters |
| 1656 | obj = _interpreters.channel_send({cid}, b'spam') |
| 1657 | _interpreters.channel_release({cid}) |
| 1658 | """)) |
| 1659 | |
| 1660 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1661 | interpreters.channel_recv(cid) |
| 1662 | |
| 1663 | def test_partially(self): |
| 1664 | # XXX Is partial close too weird/confusing? |
| 1665 | cid = interpreters.channel_create() |
| 1666 | interpreters.channel_send(cid, None) |
| 1667 | interpreters.channel_recv(cid) |
| 1668 | interpreters.channel_send(cid, b'spam') |
| 1669 | interpreters.channel_release(cid, send=True) |
| 1670 | obj = interpreters.channel_recv(cid) |
| 1671 | |
| 1672 | self.assertEqual(obj, b'spam') |
| 1673 | |
| 1674 | def test_used_multiple_times_by_single_user(self): |
| 1675 | cid = interpreters.channel_create() |
| 1676 | interpreters.channel_send(cid, b'spam') |
| 1677 | interpreters.channel_send(cid, b'spam') |
| 1678 | interpreters.channel_send(cid, b'spam') |
| 1679 | interpreters.channel_recv(cid) |
| 1680 | interpreters.channel_release(cid, send=True, recv=True) |
| 1681 | |
| 1682 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1683 | interpreters.channel_send(cid, b'eggs') |
| 1684 | with self.assertRaises(interpreters.ChannelClosedError): |
| 1685 | interpreters.channel_recv(cid) |
| 1686 | |
| 1687 | |
| 1688 | class ChannelCloseFixture(namedtuple('ChannelCloseFixture', |
| 1689 | 'end interp other extra creator')): |
| 1690 | |
| 1691 | # Set this to True to avoid creating interpreters, e.g. when |
| 1692 | # scanning through test permutations without running them. |
| 1693 | QUICK = False |
| 1694 | |
| 1695 | def __new__(cls, end, interp, other, extra, creator): |
| 1696 | assert end in ('send', 'recv') |
| 1697 | if cls.QUICK: |
| 1698 | known = {} |
| 1699 | else: |
| 1700 | interp = Interpreter.from_raw(interp) |
| 1701 | other = Interpreter.from_raw(other) |
| 1702 | extra = Interpreter.from_raw(extra) |
| 1703 | known = { |
| 1704 | interp.name: interp, |
| 1705 | other.name: other, |
| 1706 | extra.name: extra, |
| 1707 | } |
| 1708 | if not creator: |
| 1709 | creator = 'same' |
| 1710 | self = super().__new__(cls, end, interp, other, extra, creator) |
| 1711 | self._prepped = set() |
| 1712 | self._state = ChannelState() |
| 1713 | self._known = known |
| 1714 | return self |
| 1715 | |
| 1716 | @property |
| 1717 | def state(self): |
| 1718 | return self._state |
| 1719 | |
| 1720 | @property |
| 1721 | def cid(self): |
| 1722 | try: |
| 1723 | return self._cid |
| 1724 | except AttributeError: |
| 1725 | creator = self._get_interpreter(self.creator) |
| 1726 | self._cid = self._new_channel(creator) |
| 1727 | return self._cid |
| 1728 | |
| 1729 | def get_interpreter(self, interp): |
| 1730 | interp = self._get_interpreter(interp) |
| 1731 | self._prep_interpreter(interp) |
| 1732 | return interp |
| 1733 | |
| 1734 | def expect_closed_error(self, end=None): |
| 1735 | if end is None: |
| 1736 | end = self.end |
| 1737 | if end == 'recv' and self.state.closed == 'send': |
| 1738 | return False |
| 1739 | return bool(self.state.closed) |
| 1740 | |
| 1741 | def prep_interpreter(self, interp): |
| 1742 | self._prep_interpreter(interp) |
| 1743 | |
| 1744 | def record_action(self, action, result): |
| 1745 | self._state = result |
| 1746 | |
| 1747 | def clean_up(self): |
| 1748 | clean_up_interpreters() |
| 1749 | clean_up_channels() |
| 1750 | |
| 1751 | # internal methods |
| 1752 | |
| 1753 | def _new_channel(self, creator): |
| 1754 | if creator.name == 'main': |
| 1755 | return interpreters.channel_create() |
| 1756 | else: |
| 1757 | ch = interpreters.channel_create() |
| 1758 | run_interp(creator.id, f""" |
| 1759 | import _xxsubinterpreters |
| 1760 | cid = _xxsubinterpreters.channel_create() |
| 1761 | # We purposefully send back an int to avoid tying the |
| 1762 | # channel to the other interpreter. |
| 1763 | _xxsubinterpreters.channel_send({ch}, int(cid)) |
| 1764 | del _xxsubinterpreters |
| 1765 | """) |
| 1766 | self._cid = interpreters.channel_recv(ch) |
| 1767 | return self._cid |
| 1768 | |
| 1769 | def _get_interpreter(self, interp): |
| 1770 | if interp in ('same', 'interp'): |
| 1771 | return self.interp |
| 1772 | elif interp == 'other': |
| 1773 | return self.other |
| 1774 | elif interp == 'extra': |
| 1775 | return self.extra |
| 1776 | else: |
| 1777 | name = interp |
| 1778 | try: |
| 1779 | interp = self._known[name] |
| 1780 | except KeyError: |
| 1781 | interp = self._known[name] = Interpreter(name) |
| 1782 | return interp |
| 1783 | |
| 1784 | def _prep_interpreter(self, interp): |
| 1785 | if interp.id in self._prepped: |
| 1786 | return |
| 1787 | self._prepped.add(interp.id) |
| 1788 | if interp.name == 'main': |
| 1789 | return |
| 1790 | run_interp(interp.id, f""" |
| 1791 | import _xxsubinterpreters as interpreters |
| 1792 | import test.test__xxsubinterpreters as helpers |
| 1793 | ChannelState = helpers.ChannelState |
| 1794 | try: |
| 1795 | cid |
| 1796 | except NameError: |
| 1797 | cid = interpreters._channel_id({self.cid}) |
| 1798 | """) |
| 1799 | |
| 1800 | |
| 1801 | @unittest.skip('these tests take several hours to run') |
| 1802 | class ExhaustiveChannelTests(TestBase): |
| 1803 | |
| 1804 | """ |
| 1805 | - main / interp / other |
| 1806 | - run in: current thread / new thread / other thread / different threads |
| 1807 | - end / opposite |
| 1808 | - force / no force |
| 1809 | - used / not used (associated / not associated) |
| 1810 | - empty / emptied / never emptied / partly emptied |
| 1811 | - closed / not closed |
| 1812 | - released / not released |
| 1813 | - creator (interp) / other |
| 1814 | - associated interpreter not running |
| 1815 | - associated interpreter destroyed |
| 1816 | |
| 1817 | - close after unbound |
| 1818 | """ |
| 1819 | |
| 1820 | """ |
| 1821 | use |
| 1822 | pre-close |
| 1823 | close |
| 1824 | after |
| 1825 | check |
| 1826 | """ |
| 1827 | |
| 1828 | """ |
| 1829 | close in: main, interp1 |
| 1830 | creator: same, other, extra |
| 1831 | |
| 1832 | use: None,send,recv,send/recv in None,same,other,same+other,all |
| 1833 | pre-close: None,send,recv in None,same,other,same+other,all |
| 1834 | pre-close forced: None,send,recv in None,same,other,same+other,all |
| 1835 | |
| 1836 | close: same |
| 1837 | close forced: same |
| 1838 | |
| 1839 | use after: None,send,recv,send/recv in None,same,other,extra,same+other,all |
| 1840 | close after: None,send,recv,send/recv in None,same,other,extra,same+other,all |
| 1841 | check closed: send/recv for same/other(incl. interp2) |
| 1842 | """ |
| 1843 | |
| 1844 | def iter_action_sets(self): |
| 1845 | # - used / not used (associated / not associated) |
| 1846 | # - empty / emptied / never emptied / partly emptied |
| 1847 | # - closed / not closed |
| 1848 | # - released / not released |
| 1849 | |
| 1850 | # never used |
| 1851 | yield [] |
| 1852 | |
| 1853 | # only pre-closed (and possible used after) |
| 1854 | for closeactions in self._iter_close_action_sets('same', 'other'): |
| 1855 | yield closeactions |
| 1856 | for postactions in self._iter_post_close_action_sets(): |
| 1857 | yield closeactions + postactions |
| 1858 | for closeactions in self._iter_close_action_sets('other', 'extra'): |
| 1859 | yield closeactions |
| 1860 | for postactions in self._iter_post_close_action_sets(): |
| 1861 | yield closeactions + postactions |
| 1862 | |
| 1863 | # used |
| 1864 | for useactions in self._iter_use_action_sets('same', 'other'): |
| 1865 | yield useactions |
| 1866 | for closeactions in self._iter_close_action_sets('same', 'other'): |
| 1867 | actions = useactions + closeactions |
| 1868 | yield actions |
| 1869 | for postactions in self._iter_post_close_action_sets(): |
| 1870 | yield actions + postactions |
| 1871 | for closeactions in self._iter_close_action_sets('other', 'extra'): |
| 1872 | actions = useactions + closeactions |
| 1873 | yield actions |
| 1874 | for postactions in self._iter_post_close_action_sets(): |
| 1875 | yield actions + postactions |
| 1876 | for useactions in self._iter_use_action_sets('other', 'extra'): |
| 1877 | yield useactions |
| 1878 | for closeactions in self._iter_close_action_sets('same', 'other'): |
| 1879 | actions = useactions + closeactions |
| 1880 | yield actions |
| 1881 | for postactions in self._iter_post_close_action_sets(): |
| 1882 | yield actions + postactions |
| 1883 | for closeactions in self._iter_close_action_sets('other', 'extra'): |
| 1884 | actions = useactions + closeactions |
| 1885 | yield actions |
| 1886 | for postactions in self._iter_post_close_action_sets(): |
| 1887 | yield actions + postactions |
| 1888 | |
| 1889 | def _iter_use_action_sets(self, interp1, interp2): |
| 1890 | interps = (interp1, interp2) |
| 1891 | |
| 1892 | # only recv end used |
| 1893 | yield [ |
| 1894 | ChannelAction('use', 'recv', interp1), |
| 1895 | ] |
| 1896 | yield [ |
| 1897 | ChannelAction('use', 'recv', interp2), |
| 1898 | ] |
| 1899 | yield [ |
| 1900 | ChannelAction('use', 'recv', interp1), |
| 1901 | ChannelAction('use', 'recv', interp2), |
| 1902 | ] |
| 1903 | |
| 1904 | # never emptied |
| 1905 | yield [ |
| 1906 | ChannelAction('use', 'send', interp1), |
| 1907 | ] |
| 1908 | yield [ |
| 1909 | ChannelAction('use', 'send', interp2), |
| 1910 | ] |
| 1911 | yield [ |
| 1912 | ChannelAction('use', 'send', interp1), |
| 1913 | ChannelAction('use', 'send', interp2), |
| 1914 | ] |
| 1915 | |
| 1916 | # partially emptied |
| 1917 | for interp1 in interps: |
| 1918 | for interp2 in interps: |
| 1919 | for interp3 in interps: |
| 1920 | yield [ |
| 1921 | ChannelAction('use', 'send', interp1), |
| 1922 | ChannelAction('use', 'send', interp2), |
| 1923 | ChannelAction('use', 'recv', interp3), |
| 1924 | ] |
| 1925 | |
| 1926 | # fully emptied |
| 1927 | for interp1 in interps: |
| 1928 | for interp2 in interps: |
| 1929 | for interp3 in interps: |
| 1930 | for interp4 in interps: |
| 1931 | yield [ |
| 1932 | ChannelAction('use', 'send', interp1), |
| 1933 | ChannelAction('use', 'send', interp2), |
| 1934 | ChannelAction('use', 'recv', interp3), |
| 1935 | ChannelAction('use', 'recv', interp4), |
| 1936 | ] |
| 1937 | |
| 1938 | def _iter_close_action_sets(self, interp1, interp2): |
| 1939 | ends = ('recv', 'send') |
| 1940 | interps = (interp1, interp2) |
| 1941 | for force in (True, False): |
| 1942 | op = 'force-close' if force else 'close' |
| 1943 | for interp in interps: |
| 1944 | for end in ends: |
| 1945 | yield [ |
| 1946 | ChannelAction(op, end, interp), |
| 1947 | ] |
| 1948 | for recvop in ('close', 'force-close'): |
| 1949 | for sendop in ('close', 'force-close'): |
| 1950 | for recv in interps: |
| 1951 | for send in interps: |
| 1952 | yield [ |
| 1953 | ChannelAction(recvop, 'recv', recv), |
| 1954 | ChannelAction(sendop, 'send', send), |
| 1955 | ] |
| 1956 | |
| 1957 | def _iter_post_close_action_sets(self): |
| 1958 | for interp in ('same', 'extra', 'other'): |
| 1959 | yield [ |
| 1960 | ChannelAction('use', 'recv', interp), |
| 1961 | ] |
| 1962 | yield [ |
| 1963 | ChannelAction('use', 'send', interp), |
| 1964 | ] |
| 1965 | |
| 1966 | def run_actions(self, fix, actions): |
| 1967 | for action in actions: |
| 1968 | self.run_action(fix, action) |
| 1969 | |
| 1970 | def run_action(self, fix, action, *, hideclosed=True): |
| 1971 | end = action.resolve_end(fix.end) |
| 1972 | interp = action.resolve_interp(fix.interp, fix.other, fix.extra) |
| 1973 | fix.prep_interpreter(interp) |
| 1974 | if interp.name == 'main': |
| 1975 | result = run_action( |
| 1976 | fix.cid, |
| 1977 | action.action, |
| 1978 | end, |
| 1979 | fix.state, |
| 1980 | hideclosed=hideclosed, |
| 1981 | ) |
| 1982 | fix.record_action(action, result) |
| 1983 | else: |
| 1984 | _cid = interpreters.channel_create() |
| 1985 | run_interp(interp.id, f""" |
| 1986 | result = helpers.run_action( |
| 1987 | {fix.cid}, |
| 1988 | {repr(action.action)}, |
| 1989 | {repr(end)}, |
| 1990 | {repr(fix.state)}, |
| 1991 | hideclosed={hideclosed}, |
| 1992 | ) |
| 1993 | interpreters.channel_send({_cid}, result.pending.to_bytes(1, 'little')) |
| 1994 | interpreters.channel_send({_cid}, b'X' if result.closed else b'') |
| 1995 | """) |
| 1996 | result = ChannelState( |
| 1997 | pending=int.from_bytes(interpreters.channel_recv(_cid), 'little'), |
| 1998 | closed=bool(interpreters.channel_recv(_cid)), |
| 1999 | ) |
| 2000 | fix.record_action(action, result) |
| 2001 | |
| 2002 | def iter_fixtures(self): |
| 2003 | # XXX threads? |
| 2004 | interpreters = [ |
| 2005 | ('main', 'interp', 'extra'), |
| 2006 | ('interp', 'main', 'extra'), |
| 2007 | ('interp1', 'interp2', 'extra'), |
| 2008 | ('interp1', 'interp2', 'main'), |
| 2009 | ] |
| 2010 | for interp, other, extra in interpreters: |
| 2011 | for creator in ('same', 'other', 'creator'): |
| 2012 | for end in ('send', 'recv'): |
| 2013 | yield ChannelCloseFixture(end, interp, other, extra, creator) |
| 2014 | |
| 2015 | def _close(self, fix, *, force): |
| 2016 | op = 'force-close' if force else 'close' |
| 2017 | close = ChannelAction(op, fix.end, 'same') |
| 2018 | if not fix.expect_closed_error(): |
| 2019 | self.run_action(fix, close, hideclosed=False) |
| 2020 | else: |
| 2021 | with self.assertRaises(interpreters.ChannelClosedError): |
| 2022 | self.run_action(fix, close, hideclosed=False) |
| 2023 | |
| 2024 | def _assert_closed_in_interp(self, fix, interp=None): |
| 2025 | if interp is None or interp.name == 'main': |
| 2026 | with self.assertRaises(interpreters.ChannelClosedError): |
| 2027 | interpreters.channel_recv(fix.cid) |
| 2028 | with self.assertRaises(interpreters.ChannelClosedError): |
| 2029 | interpreters.channel_send(fix.cid, b'spam') |
| 2030 | with self.assertRaises(interpreters.ChannelClosedError): |
| 2031 | interpreters.channel_close(fix.cid) |
| 2032 | with self.assertRaises(interpreters.ChannelClosedError): |
| 2033 | interpreters.channel_close(fix.cid, force=True) |
| 2034 | else: |
| 2035 | run_interp(interp.id, f""" |
| 2036 | with helpers.expect_channel_closed(): |
| 2037 | interpreters.channel_recv(cid) |
| 2038 | """) |
| 2039 | run_interp(interp.id, f""" |
| 2040 | with helpers.expect_channel_closed(): |
| 2041 | interpreters.channel_send(cid, b'spam') |
| 2042 | """) |
| 2043 | run_interp(interp.id, f""" |
| 2044 | with helpers.expect_channel_closed(): |
| 2045 | interpreters.channel_close(cid) |
| 2046 | """) |
| 2047 | run_interp(interp.id, f""" |
| 2048 | with helpers.expect_channel_closed(): |
| 2049 | interpreters.channel_close(cid, force=True) |
| 2050 | """) |
| 2051 | |
| 2052 | def _assert_closed(self, fix): |
| 2053 | self.assertTrue(fix.state.closed) |
| 2054 | |
| 2055 | for _ in range(fix.state.pending): |
| 2056 | interpreters.channel_recv(fix.cid) |
| 2057 | self._assert_closed_in_interp(fix) |
| 2058 | |
| 2059 | for interp in ('same', 'other'): |
| 2060 | interp = fix.get_interpreter(interp) |
| 2061 | if interp.name == 'main': |
| 2062 | continue |
| 2063 | self._assert_closed_in_interp(fix, interp) |
| 2064 | |
| 2065 | interp = fix.get_interpreter('fresh') |
| 2066 | self._assert_closed_in_interp(fix, interp) |
| 2067 | |
| 2068 | def _iter_close_tests(self, verbose=False): |
| 2069 | i = 0 |
| 2070 | for actions in self.iter_action_sets(): |
| 2071 | print() |
| 2072 | for fix in self.iter_fixtures(): |
| 2073 | i += 1 |
| 2074 | if i > 1000: |
| 2075 | return |
| 2076 | if verbose: |
| 2077 | if (i - 1) % 6 == 0: |
| 2078 | print() |
| 2079 | print(i, fix, '({} actions)'.format(len(actions))) |
| 2080 | else: |
| 2081 | if (i - 1) % 6 == 0: |
| 2082 | print(' ', end='') |
| 2083 | print('.', end=''); sys.stdout.flush() |
| 2084 | yield i, fix, actions |
| 2085 | if verbose: |
| 2086 | print('---') |
| 2087 | print() |
| 2088 | |
| 2089 | # This is useful for scanning through the possible tests. |
| 2090 | def _skim_close_tests(self): |
| 2091 | ChannelCloseFixture.QUICK = True |
| 2092 | for i, fix, actions in self._iter_close_tests(): |
| 2093 | pass |
| 2094 | |
| 2095 | def test_close(self): |
| 2096 | for i, fix, actions in self._iter_close_tests(): |
| 2097 | with self.subTest('{} {} {}'.format(i, fix, actions)): |
| 2098 | fix.prep_interpreter(fix.interp) |
| 2099 | self.run_actions(fix, actions) |
| 2100 | |
| 2101 | self._close(fix, force=False) |
| 2102 | |
| 2103 | self._assert_closed(fix) |
| 2104 | # XXX Things slow down if we have too many interpreters. |
| 2105 | fix.clean_up() |
| 2106 | |
| 2107 | def test_force_close(self): |
| 2108 | for i, fix, actions in self._iter_close_tests(): |
| 2109 | with self.subTest('{} {} {}'.format(i, fix, actions)): |
| 2110 | fix.prep_interpreter(fix.interp) |
| 2111 | self.run_actions(fix, actions) |
| 2112 | |
| 2113 | self._close(fix, force=True) |
| 2114 | |
| 2115 | self._assert_closed(fix) |
| 2116 | # XXX Things slow down if we have too many interpreters. |
| 2117 | fix.clean_up() |
| 2118 | |
Eric Snow | 7f8bfc9 | 2018-01-29 18:23:44 -0700 | [diff] [blame] | 2119 | |
| 2120 | if __name__ == '__main__': |
| 2121 | unittest.main() |