| 1 | from bt2 import value |
| 2 | import collections |
| 3 | import unittest |
| 4 | import copy |
| 5 | import bt2 |
| 6 | |
| 7 | |
| 8 | class _MyIter(bt2._UserMessageIterator): |
| 9 | def __init__(self, self_output_port): |
| 10 | self._build_meta() |
| 11 | self._at = 0 |
| 12 | |
| 13 | def _build_meta(self): |
| 14 | self._tc = self._component._create_trace_class() |
| 15 | self._t = self._tc() |
| 16 | self._sc = self._tc.create_stream_class() |
| 17 | self._ec = self._sc.create_event_class(name='salut') |
| 18 | self._my_int_ft = self._tc.create_signed_integer_field_class(32) |
| 19 | payload_ft = self._tc.create_structure_field_class() |
| 20 | payload_ft += collections.OrderedDict([ |
| 21 | ('my_int', self._my_int_ft), |
| 22 | ]) |
| 23 | self._ec.payload_field_type = payload_ft |
| 24 | self._stream = self._t.create_stream(self._sc) |
| 25 | self._packet = self._stream.create_packet() |
| 26 | |
| 27 | def _create_event(self, value): |
| 28 | ev = self._ec() |
| 29 | ev.payload_field['my_int'] = value |
| 30 | ev.packet = self._packet |
| 31 | return ev |
| 32 | |
| 33 | |
| 34 | class GraphTestCase(unittest.TestCase): |
| 35 | def setUp(self): |
| 36 | self._graph = bt2.Graph() |
| 37 | |
| 38 | def tearDown(self): |
| 39 | del self._graph |
| 40 | |
| 41 | def test_create_empty(self): |
| 42 | graph = bt2.Graph() |
| 43 | |
| 44 | def test_add_component_user_cls(self): |
| 45 | class MySink(bt2._UserSinkComponent): |
| 46 | def _consume(self): |
| 47 | pass |
| 48 | |
| 49 | comp = self._graph.add_component(MySink, 'salut') |
| 50 | self.assertEqual(comp.name, 'salut') |
| 51 | |
| 52 | def test_add_component_gen_cls(self): |
| 53 | class MySink(bt2._UserSinkComponent): |
| 54 | def _consume(self): |
| 55 | pass |
| 56 | |
| 57 | comp = self._graph.add_component(MySink, 'salut') |
| 58 | assert comp |
| 59 | comp2 = self._graph.add_component(comp.cls, 'salut2') |
| 60 | self.assertEqual(comp2.name, 'salut2') |
| 61 | |
| 62 | def test_add_component_params(self): |
| 63 | comp_params = None |
| 64 | |
| 65 | class MySink(bt2._UserSinkComponent): |
| 66 | def __init__(self, params): |
| 67 | nonlocal comp_params |
| 68 | comp_params = params |
| 69 | |
| 70 | def _consume(self): |
| 71 | pass |
| 72 | |
| 73 | params = {'hello': 23, 'path': '/path/to/stuff'} |
| 74 | comp = self._graph.add_component(MySink, 'salut', params) |
| 75 | self.assertEqual(params, comp_params) |
| 76 | del comp_params |
| 77 | |
| 78 | def test_add_component_invalid_cls_type(self): |
| 79 | with self.assertRaises(TypeError): |
| 80 | self._graph.add_component(int, 'salut') |
| 81 | |
| 82 | def test_add_component_invalid_logging_level_type(self): |
| 83 | class MySink(bt2._UserSinkComponent): |
| 84 | def _consume(self): |
| 85 | pass |
| 86 | |
| 87 | with self.assertRaises(TypeError): |
| 88 | self._graph.add_component(MySink, 'salut', logging_level='yo') |
| 89 | |
| 90 | def test_add_component_invalid_logging_level_value(self): |
| 91 | class MySink(bt2._UserSinkComponent): |
| 92 | def _consume(self): |
| 93 | pass |
| 94 | |
| 95 | with self.assertRaises(ValueError): |
| 96 | self._graph.add_component(MySink, 'salut', logging_level=12345) |
| 97 | |
| 98 | def test_add_component_logging_level(self): |
| 99 | class MySink(bt2._UserSinkComponent): |
| 100 | def _consume(self): |
| 101 | pass |
| 102 | |
| 103 | comp = self._graph.add_component(MySink, 'salut', |
| 104 | logging_level=bt2.LoggingLevel.DEBUG) |
| 105 | self.assertEqual(comp.logging_level, bt2.LoggingLevel.DEBUG) |
| 106 | |
| 107 | def test_connect_ports(self): |
| 108 | class MyIter(bt2._UserMessageIterator): |
| 109 | def __next__(self): |
| 110 | raise bt2.Stop |
| 111 | |
| 112 | class MySource(bt2._UserSourceComponent, |
| 113 | message_iterator_class=MyIter): |
| 114 | def __init__(self, params): |
| 115 | self._add_output_port('out') |
| 116 | |
| 117 | class MySink(bt2._UserSinkComponent): |
| 118 | def __init__(self, params): |
| 119 | self._add_input_port('in') |
| 120 | |
| 121 | def _consume(self): |
| 122 | raise bt2.Stop |
| 123 | |
| 124 | src = self._graph.add_component(MySource, 'src') |
| 125 | sink = self._graph.add_component(MySink, 'sink') |
| 126 | |
| 127 | conn = self._graph.connect_ports(src.output_ports['out'], |
| 128 | sink.input_ports['in']) |
| 129 | self.assertTrue(src.output_ports['out'].is_connected) |
| 130 | self.assertTrue(sink.input_ports['in'].is_connected) |
| 131 | self.assertEqual(src.output_ports['out'].connection._ptr, conn._ptr) |
| 132 | self.assertEqual(sink.input_ports['in'].connection._ptr, conn._ptr) |
| 133 | |
| 134 | def test_connect_ports_invalid_direction(self): |
| 135 | class MyIter(bt2._UserMessageIterator): |
| 136 | def __next__(self): |
| 137 | raise bt2.Stop |
| 138 | |
| 139 | class MySource(bt2._UserSourceComponent, |
| 140 | message_iterator_class=MyIter): |
| 141 | def __init__(self, params): |
| 142 | self._add_output_port('out') |
| 143 | |
| 144 | class MySink(bt2._UserSinkComponent): |
| 145 | def __init__(self, params): |
| 146 | self._add_input_port('in') |
| 147 | |
| 148 | def _consume(self): |
| 149 | raise bt2.Stop |
| 150 | |
| 151 | src = self._graph.add_component(MySource, 'src') |
| 152 | sink = self._graph.add_component(MySink, 'sink') |
| 153 | |
| 154 | with self.assertRaises(TypeError): |
| 155 | conn = self._graph.connect_ports(sink.input_ports['in'], |
| 156 | src.output_ports['out']) |
| 157 | |
| 158 | def test_connect_ports_refused(self): |
| 159 | class MyIter(bt2._UserMessageIterator): |
| 160 | def __next__(self): |
| 161 | raise bt2.Stop |
| 162 | |
| 163 | class MySource(bt2._UserSourceComponent, |
| 164 | message_iterator_class=MyIter): |
| 165 | def __init__(self, params): |
| 166 | self._add_output_port('out') |
| 167 | |
| 168 | class MySink(bt2._UserSinkComponent): |
| 169 | def __init__(self, params): |
| 170 | self._add_input_port('in') |
| 171 | |
| 172 | def _consume(self): |
| 173 | raise bt2.Stop |
| 174 | |
| 175 | def _accept_port_connection(self, port, other_port): |
| 176 | return False |
| 177 | |
| 178 | src = self._graph.add_component(MySource, 'src') |
| 179 | sink = self._graph.add_component(MySink, 'sink') |
| 180 | |
| 181 | with self.assertRaises(bt2.PortConnectionRefused): |
| 182 | conn = self._graph.connect_ports(src.output_ports['out'], |
| 183 | sink.input_ports['in']) |
| 184 | |
| 185 | def test_cancel(self): |
| 186 | self.assertFalse(self._graph.is_canceled) |
| 187 | self._graph.cancel() |
| 188 | self.assertTrue(self._graph.is_canceled) |
| 189 | |
| 190 | # Test that Graph.run() raises bt2.GraphCanceled if the graph gets canceled |
| 191 | # during execution. |
| 192 | def test_cancel_while_running(self): |
| 193 | class MyIter(_MyIter): |
| 194 | def __next__(self): |
| 195 | return self._create_stream_beginning_message(self._stream) |
| 196 | |
| 197 | class MySource(bt2._UserSourceComponent, |
| 198 | message_iterator_class=MyIter): |
| 199 | def __init__(self, params): |
| 200 | self._add_output_port('out') |
| 201 | |
| 202 | class MySink(bt2._UserSinkComponent): |
| 203 | def __init__(self, params): |
| 204 | self._add_input_port('in') |
| 205 | |
| 206 | def _consume(self): |
| 207 | # Pretend that somebody asynchronously cancelled the graph. |
| 208 | nonlocal graph |
| 209 | graph.cancel() |
| 210 | |
| 211 | return next(self._msg_iter) |
| 212 | |
| 213 | def _graph_is_configured(self): |
| 214 | self._msg_iter = self._input_ports['in'].create_message_iterator() |
| 215 | |
| 216 | graph = bt2.Graph() |
| 217 | up = graph.add_component(MySource, 'down') |
| 218 | down = graph.add_component(MySink, 'up') |
| 219 | graph.connect_ports(up.output_ports['out'], down.input_ports['in']) |
| 220 | with self.assertRaises(bt2.GraphCanceled): |
| 221 | graph.run() |
| 222 | |
| 223 | def test_run(self): |
| 224 | class MyIter(_MyIter): |
| 225 | def __next__(self): |
| 226 | if self._at == 9: |
| 227 | raise StopIteration |
| 228 | |
| 229 | if self._at == 0: |
| 230 | msg = self._create_stream_beginning_message(self._stream) |
| 231 | elif self._at == 1: |
| 232 | msg = self._create_packet_beginning_message(self._packet) |
| 233 | elif self._at == 7: |
| 234 | msg = self._create_packet_end_message(self._packet) |
| 235 | elif self._at == 8: |
| 236 | msg = self._create_stream_end_message(self._stream) |
| 237 | else: |
| 238 | msg = self._create_event_message(self._ec, self._packet) |
| 239 | |
| 240 | self._at += 1 |
| 241 | return msg |
| 242 | |
| 243 | class MySource(bt2._UserSourceComponent, |
| 244 | message_iterator_class=MyIter): |
| 245 | def __init__(self, params): |
| 246 | self._add_output_port('out') |
| 247 | |
| 248 | class MySink(bt2._UserSinkComponent): |
| 249 | def __init__(self, params): |
| 250 | self._input_port = self._add_input_port('in') |
| 251 | self._at = 0 |
| 252 | |
| 253 | def _consume(comp_self): |
| 254 | msg = next(comp_self._msg_iter) |
| 255 | |
| 256 | if comp_self._at == 0: |
| 257 | self.assertIsInstance(msg, bt2.message._StreamBeginningMessage) |
| 258 | elif comp_self._at == 1: |
| 259 | self.assertIsInstance(msg, bt2.message._PacketBeginningMessage) |
| 260 | elif comp_self._at >= 2 and comp_self._at <= 6: |
| 261 | self.assertIsInstance(msg, bt2.message._EventMessage) |
| 262 | self.assertEqual(msg.event.cls.name, 'salut') |
| 263 | elif comp_self._at == 7: |
| 264 | self.assertIsInstance(msg, bt2.message._PacketEndMessage) |
| 265 | elif comp_self._at == 8: |
| 266 | self.assertIsInstance(msg, bt2.message._StreamEndMessage) |
| 267 | |
| 268 | comp_self._at += 1 |
| 269 | |
| 270 | def _graph_is_configured(self): |
| 271 | self._msg_iter = self._input_port.create_message_iterator() |
| 272 | |
| 273 | src = self._graph.add_component(MySource, 'src') |
| 274 | sink = self._graph.add_component(MySink, 'sink') |
| 275 | conn = self._graph.connect_ports(src.output_ports['out'], |
| 276 | sink.input_ports['in']) |
| 277 | self._graph.run() |
| 278 | |
| 279 | def test_run_again(self): |
| 280 | class MyIter(_MyIter): |
| 281 | def __next__(self): |
| 282 | if self._at == 3: |
| 283 | raise bt2.TryAgain |
| 284 | |
| 285 | if self._at == 0: |
| 286 | msg = self._create_stream_beginning_message(self._stream) |
| 287 | elif self._at == 1: |
| 288 | msg = self._create_packet_beginning_message(self._packet) |
| 289 | elif self._at == 2: |
| 290 | msg = self._create_event_message(self._ec, self._packet) |
| 291 | |
| 292 | self._at += 1 |
| 293 | return msg |
| 294 | |
| 295 | class MySource(bt2._UserSourceComponent, |
| 296 | message_iterator_class=MyIter): |
| 297 | def __init__(self, params): |
| 298 | self._add_output_port('out') |
| 299 | |
| 300 | class MySink(bt2._UserSinkComponent): |
| 301 | def __init__(self, params): |
| 302 | self._input_port = self._add_input_port('in') |
| 303 | self._at = 0 |
| 304 | |
| 305 | def _consume(comp_self): |
| 306 | msg = next(comp_self._msg_iter) |
| 307 | if comp_self._at == 0: |
| 308 | self.assertIsInstance(msg, bt2.message._StreamBeginningMessage) |
| 309 | elif comp_self._at == 1: |
| 310 | self.assertIsInstance(msg, bt2.message._PacketBeginningMessage) |
| 311 | elif comp_self._at == 2: |
| 312 | self.assertIsInstance(msg, bt2.message._EventMessage) |
| 313 | raise bt2.TryAgain |
| 314 | else: |
| 315 | pass |
| 316 | |
| 317 | comp_self._at += 1 |
| 318 | |
| 319 | def _graph_is_configured(self): |
| 320 | self._msg_iter = self._input_port.create_message_iterator() |
| 321 | |
| 322 | src = self._graph.add_component(MySource, 'src') |
| 323 | sink = self._graph.add_component(MySink, 'sink') |
| 324 | conn = self._graph.connect_ports(src.output_ports['out'], |
| 325 | sink.input_ports['in']) |
| 326 | |
| 327 | with self.assertRaises(bt2.TryAgain): |
| 328 | self._graph.run() |
| 329 | |
| 330 | def test_run_error(self): |
| 331 | raised_in_sink = False |
| 332 | |
| 333 | class MyIter(_MyIter): |
| 334 | def __next__(self): |
| 335 | # If this gets called after the sink raised an exception, it is |
| 336 | # an error. |
| 337 | nonlocal raised_in_sink |
| 338 | assert raised_in_sink is False |
| 339 | |
| 340 | if self._at == 0: |
| 341 | msg = self._create_stream_beginning_message(self._stream) |
| 342 | elif self._at == 1: |
| 343 | msg = self._create_packet_beginning_message(self._packet) |
| 344 | elif self._at == 2 or self._at == 3: |
| 345 | msg = self._create_event_message(self._ec, self._packet) |
| 346 | else: |
| 347 | raise bt2.TryAgain |
| 348 | self._at += 1 |
| 349 | return msg |
| 350 | |
| 351 | class MySource(bt2._UserSourceComponent, |
| 352 | message_iterator_class=MyIter): |
| 353 | def __init__(self, params): |
| 354 | self._add_output_port('out') |
| 355 | |
| 356 | class MySink(bt2._UserSinkComponent): |
| 357 | def __init__(self, params): |
| 358 | self._input_port = self._add_input_port('in') |
| 359 | self._at = 0 |
| 360 | |
| 361 | def _consume(comp_self): |
| 362 | msg = next(comp_self._msg_iter) |
| 363 | if comp_self._at == 0: |
| 364 | self.assertIsInstance(msg, bt2.message._StreamBeginningMessage) |
| 365 | elif comp_self._at == 1: |
| 366 | self.assertIsInstance(msg, bt2.message._PacketBeginningMessage) |
| 367 | elif comp_self._at == 2: |
| 368 | self.assertIsInstance(msg, bt2.message._EventMessage) |
| 369 | elif comp_self._at == 3: |
| 370 | nonlocal raised_in_sink |
| 371 | raised_in_sink = True |
| 372 | raise RuntimeError('error!') |
| 373 | |
| 374 | comp_self._at += 1 |
| 375 | |
| 376 | def _graph_is_configured(self): |
| 377 | self._msg_iter = self._input_port.create_message_iterator() |
| 378 | |
| 379 | src = self._graph.add_component(MySource, 'src') |
| 380 | sink = self._graph.add_component(MySink, 'sink') |
| 381 | conn = self._graph.connect_ports(src.output_ports['out'], |
| 382 | sink.input_ports['in']) |
| 383 | |
| 384 | with self.assertRaises(bt2.Error): |
| 385 | self._graph.run() |
| 386 | |
| 387 | def test_listeners(self): |
| 388 | class MyIter(bt2._UserMessageIterator): |
| 389 | def __next__(self): |
| 390 | raise bt2.Stop |
| 391 | |
| 392 | class MySource(bt2._UserSourceComponent, |
| 393 | message_iterator_class=MyIter): |
| 394 | def __init__(self, params): |
| 395 | self._add_output_port('out') |
| 396 | self._add_output_port('zero') |
| 397 | |
| 398 | class MySink(bt2._UserSinkComponent): |
| 399 | def __init__(self, params): |
| 400 | self._add_input_port('in') |
| 401 | |
| 402 | def _consume(self): |
| 403 | raise bt2.Stop |
| 404 | |
| 405 | def _port_connected(self, port, other_port): |
| 406 | self._add_input_port('taste') |
| 407 | |
| 408 | def port_added_listener(component, port): |
| 409 | nonlocal calls |
| 410 | calls.append((port_added_listener, component, port)) |
| 411 | |
| 412 | def ports_connected_listener(upstream_component, upstream_port, |
| 413 | downstream_component, downstream_port): |
| 414 | nonlocal calls |
| 415 | calls.append((ports_connected_listener, |
| 416 | upstream_component, upstream_port, |
| 417 | downstream_component, downstream_port)) |
| 418 | |
| 419 | calls = [] |
| 420 | self._graph.add_port_added_listener(port_added_listener) |
| 421 | self._graph.add_ports_connected_listener(ports_connected_listener) |
| 422 | src = self._graph.add_component(MySource, 'src') |
| 423 | sink = self._graph.add_component(MySink, 'sink') |
| 424 | self._graph.connect_ports(src.output_ports['out'], |
| 425 | sink.input_ports['in']) |
| 426 | |
| 427 | self.assertEqual(len(calls), 5) |
| 428 | |
| 429 | self.assertIs(calls[0][0], port_added_listener) |
| 430 | self.assertEqual(calls[0][1].name, 'src') |
| 431 | self.assertEqual(calls[0][2].name, 'out') |
| 432 | |
| 433 | self.assertIs(calls[1][0], port_added_listener) |
| 434 | self.assertEqual(calls[1][1].name, 'src') |
| 435 | self.assertEqual(calls[1][2].name, 'zero') |
| 436 | |
| 437 | self.assertIs(calls[2][0], port_added_listener) |
| 438 | self.assertEqual(calls[2][1].name, 'sink') |
| 439 | self.assertEqual(calls[2][2].name, 'in') |
| 440 | |
| 441 | self.assertIs(calls[3][0], port_added_listener) |
| 442 | self.assertEqual(calls[3][1].name, 'sink') |
| 443 | self.assertEqual(calls[3][2].name, 'taste') |
| 444 | |
| 445 | self.assertIs(calls[4][0], ports_connected_listener) |
| 446 | self.assertEqual(calls[4][1].name, 'src') |
| 447 | self.assertEqual(calls[4][2].name, 'out') |
| 448 | self.assertEqual(calls[4][3].name, 'sink') |
| 449 | self.assertEqual(calls[4][4].name, 'in') |
| 450 | |
| 451 | def test_invalid_listeners(self): |
| 452 | class MyIter(bt2._UserMessageIterator): |
| 453 | def __next__(self): |
| 454 | raise bt2.Stop |
| 455 | |
| 456 | class MySource(bt2._UserSourceComponent, |
| 457 | message_iterator_class=MyIter): |
| 458 | def __init__(self, params): |
| 459 | self._add_output_port('out') |
| 460 | self._add_output_port('zero') |
| 461 | |
| 462 | class MySink(bt2._UserSinkComponent): |
| 463 | def __init__(self, params): |
| 464 | self._add_input_port('in') |
| 465 | |
| 466 | def _consume(self): |
| 467 | raise bt2.Stop |
| 468 | |
| 469 | def _port_connected(self, port, other_port): |
| 470 | self._add_input_port('taste') |
| 471 | |
| 472 | with self.assertRaises(TypeError): |
| 473 | self._graph.add_port_added_listener(1234) |
| 474 | with self.assertRaises(TypeError): |
| 475 | self._graph.add_ports_connected_listener(1234) |
| 476 | |
| 477 | def test_raise_in_component_init(self): |
| 478 | class MySink(bt2._UserSinkComponent): |
| 479 | def __init__(self, params): |
| 480 | raise ValueError('oops!') |
| 481 | |
| 482 | def _consume(self): |
| 483 | raise bt2.Stop |
| 484 | |
| 485 | graph = bt2.Graph() |
| 486 | |
| 487 | with self.assertRaises(bt2.Error): |
| 488 | graph.add_component(MySink, 'comp') |
| 489 | |
| 490 | def test_raise_in_port_added_listener(self): |
| 491 | class MySink(bt2._UserSinkComponent): |
| 492 | def __init__(self, params): |
| 493 | self._add_input_port('in') |
| 494 | |
| 495 | def _consume(self): |
| 496 | raise bt2.Stop |
| 497 | |
| 498 | def port_added_listener(component, port): |
| 499 | raise ValueError('oh noes!') |
| 500 | |
| 501 | graph = bt2.Graph() |
| 502 | graph.add_port_added_listener(port_added_listener) |
| 503 | |
| 504 | with self.assertRaises(bt2.Error): |
| 505 | graph.add_component(MySink, 'comp') |
| 506 | |
| 507 | def test_raise_in_ports_connected_listener(self): |
| 508 | class MyIter(bt2._UserMessageIterator): |
| 509 | def __next__(self): |
| 510 | raise bt2.Stop |
| 511 | |
| 512 | class MySource(bt2._UserSourceComponent, |
| 513 | message_iterator_class=MyIter): |
| 514 | def __init__(self, params): |
| 515 | self._add_output_port('out') |
| 516 | |
| 517 | class MySink(bt2._UserSinkComponent): |
| 518 | def __init__(self, params): |
| 519 | self._add_input_port('in') |
| 520 | |
| 521 | def _consume(self): |
| 522 | raise bt2.Stop |
| 523 | |
| 524 | def ports_connected_listener(upstream_component, upstream_port, |
| 525 | downstream_component, downstream_port): |
| 526 | raise ValueError('oh noes!') |
| 527 | |
| 528 | graph = bt2.Graph() |
| 529 | graph.add_ports_connected_listener(ports_connected_listener) |
| 530 | up = graph.add_component(MySource, 'down') |
| 531 | down = graph.add_component(MySink, 'up') |
| 532 | |
| 533 | with self.assertRaises(bt2.Error): |
| 534 | graph.connect_ports(up.output_ports['out'], down.input_ports['in']) |