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d2d857a8 MJ |
1 | # |
2 | # Copyright (C) 2019 EfficiOS Inc. | |
3 | # | |
4 | # This program is free software; you can redistribute it and/or | |
5 | # modify it under the terms of the GNU General Public License | |
6 | # as published by the Free Software Foundation; only version 2 | |
7 | # of the License. | |
8 | # | |
9 | # This program is distributed in the hope that it will be useful, | |
10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | # GNU General Public License for more details. | |
13 | # | |
14 | # You should have received a copy of the GNU General Public License | |
15 | # along with this program; if not, write to the Free Software | |
16 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
17 | # | |
18 | ||
c4239792 | 19 | from bt2 import value |
811644b8 PP |
20 | import collections |
21 | import unittest | |
22 | import copy | |
23 | import bt2 | |
24 | ||
25 | ||
5f25509b | 26 | class _MyIter(bt2._UserMessageIterator): |
c5f330cd | 27 | def __init__(self, self_output_port): |
5f25509b SM |
28 | self._build_meta() |
29 | self._at = 0 | |
30 | ||
31 | def _build_meta(self): | |
32 | self._tc = self._component._create_trace_class() | |
33 | self._t = self._tc() | |
26fc5aed | 34 | self._sc = self._tc.create_stream_class(supports_packets=True) |
5f25509b SM |
35 | self._ec = self._sc.create_event_class(name='salut') |
36 | self._my_int_ft = self._tc.create_signed_integer_field_class(32) | |
37 | payload_ft = self._tc.create_structure_field_class() | |
cfbd7cf3 | 38 | payload_ft += [('my_int', self._my_int_ft)] |
5f25509b SM |
39 | self._ec.payload_field_type = payload_ft |
40 | self._stream = self._t.create_stream(self._sc) | |
41 | self._packet = self._stream.create_packet() | |
42 | ||
43 | def _create_event(self, value): | |
44 | ev = self._ec() | |
45 | ev.payload_field['my_int'] = value | |
46 | ev.packet = self._packet | |
47 | return ev | |
48 | ||
49 | ||
811644b8 PP |
50 | class GraphTestCase(unittest.TestCase): |
51 | def setUp(self): | |
52 | self._graph = bt2.Graph() | |
53 | ||
54 | def tearDown(self): | |
55 | del self._graph | |
56 | ||
57 | def test_create_empty(self): | |
58 | graph = bt2.Graph() | |
59 | ||
60 | def test_add_component_user_cls(self): | |
61 | class MySink(bt2._UserSinkComponent): | |
62 | def _consume(self): | |
63 | pass | |
cfbd7cf3 | 64 | |
a01b452b SM |
65 | def _graph_is_configured(self): |
66 | pass | |
811644b8 PP |
67 | |
68 | comp = self._graph.add_component(MySink, 'salut') | |
69 | self.assertEqual(comp.name, 'salut') | |
70 | ||
71 | def test_add_component_gen_cls(self): | |
72 | class MySink(bt2._UserSinkComponent): | |
73 | def _consume(self): | |
74 | pass | |
cfbd7cf3 | 75 | |
a01b452b SM |
76 | def _graph_is_configured(self): |
77 | pass | |
811644b8 PP |
78 | |
79 | comp = self._graph.add_component(MySink, 'salut') | |
5f25509b | 80 | assert comp |
e8ac1aae | 81 | comp2 = self._graph.add_component(comp.cls, 'salut2') |
811644b8 PP |
82 | self.assertEqual(comp2.name, 'salut2') |
83 | ||
84 | def test_add_component_params(self): | |
85 | comp_params = None | |
86 | ||
87 | class MySink(bt2._UserSinkComponent): | |
88 | def __init__(self, params): | |
89 | nonlocal comp_params | |
90 | comp_params = params | |
91 | ||
92 | def _consume(self): | |
93 | pass | |
cfbd7cf3 | 94 | |
a01b452b SM |
95 | def _graph_is_configured(self): |
96 | pass | |
811644b8 PP |
97 | |
98 | params = {'hello': 23, 'path': '/path/to/stuff'} | |
99 | comp = self._graph.add_component(MySink, 'salut', params) | |
100 | self.assertEqual(params, comp_params) | |
101 | del comp_params | |
102 | ||
103 | def test_add_component_invalid_cls_type(self): | |
104 | with self.assertRaises(TypeError): | |
105 | self._graph.add_component(int, 'salut') | |
106 | ||
8ef46e79 PP |
107 | def test_add_component_invalid_logging_level_type(self): |
108 | class MySink(bt2._UserSinkComponent): | |
109 | def _consume(self): | |
110 | pass | |
cfbd7cf3 | 111 | |
a01b452b SM |
112 | def _graph_is_configured(self): |
113 | pass | |
8ef46e79 PP |
114 | |
115 | with self.assertRaises(TypeError): | |
116 | self._graph.add_component(MySink, 'salut', logging_level='yo') | |
117 | ||
118 | def test_add_component_invalid_logging_level_value(self): | |
119 | class MySink(bt2._UserSinkComponent): | |
120 | def _consume(self): | |
121 | pass | |
cfbd7cf3 | 122 | |
a01b452b SM |
123 | def _graph_is_configured(self): |
124 | pass | |
8ef46e79 PP |
125 | |
126 | with self.assertRaises(ValueError): | |
127 | self._graph.add_component(MySink, 'salut', logging_level=12345) | |
128 | ||
129 | def test_add_component_logging_level(self): | |
130 | class MySink(bt2._UserSinkComponent): | |
131 | def _consume(self): | |
132 | pass | |
cfbd7cf3 | 133 | |
a01b452b SM |
134 | def _graph_is_configured(self): |
135 | pass | |
8ef46e79 | 136 | |
cfbd7cf3 FD |
137 | comp = self._graph.add_component( |
138 | MySink, 'salut', logging_level=bt2.LoggingLevel.DEBUG | |
139 | ) | |
8ef46e79 PP |
140 | self.assertEqual(comp.logging_level, bt2.LoggingLevel.DEBUG) |
141 | ||
811644b8 | 142 | def test_connect_ports(self): |
5602ef81 | 143 | class MyIter(bt2._UserMessageIterator): |
811644b8 PP |
144 | def __next__(self): |
145 | raise bt2.Stop | |
146 | ||
cfbd7cf3 | 147 | class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter): |
811644b8 PP |
148 | def __init__(self, params): |
149 | self._add_output_port('out') | |
150 | ||
151 | class MySink(bt2._UserSinkComponent): | |
152 | def __init__(self, params): | |
153 | self._add_input_port('in') | |
154 | ||
155 | def _consume(self): | |
156 | raise bt2.Stop | |
157 | ||
a01b452b SM |
158 | def _graph_is_configured(self): |
159 | pass | |
160 | ||
811644b8 PP |
161 | src = self._graph.add_component(MySource, 'src') |
162 | sink = self._graph.add_component(MySink, 'sink') | |
5f25509b | 163 | |
cfbd7cf3 FD |
164 | conn = self._graph.connect_ports( |
165 | src.output_ports['out'], sink.input_ports['in'] | |
166 | ) | |
811644b8 PP |
167 | self.assertTrue(src.output_ports['out'].is_connected) |
168 | self.assertTrue(sink.input_ports['in'].is_connected) | |
89b5033a FD |
169 | self.assertEqual(src.output_ports['out'].connection.addr, conn.addr) |
170 | self.assertEqual(sink.input_ports['in'].connection.addr, conn.addr) | |
811644b8 PP |
171 | |
172 | def test_connect_ports_invalid_direction(self): | |
5602ef81 | 173 | class MyIter(bt2._UserMessageIterator): |
811644b8 PP |
174 | def __next__(self): |
175 | raise bt2.Stop | |
176 | ||
cfbd7cf3 | 177 | class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter): |
811644b8 PP |
178 | def __init__(self, params): |
179 | self._add_output_port('out') | |
180 | ||
181 | class MySink(bt2._UserSinkComponent): | |
182 | def __init__(self, params): | |
183 | self._add_input_port('in') | |
184 | ||
185 | def _consume(self): | |
186 | raise bt2.Stop | |
187 | ||
a01b452b SM |
188 | def _graph_is_configured(self): |
189 | pass | |
190 | ||
811644b8 PP |
191 | src = self._graph.add_component(MySource, 'src') |
192 | sink = self._graph.add_component(MySink, 'sink') | |
193 | ||
194 | with self.assertRaises(TypeError): | |
cfbd7cf3 FD |
195 | conn = self._graph.connect_ports( |
196 | sink.input_ports['in'], src.output_ports['out'] | |
197 | ) | |
811644b8 | 198 | |
5f25509b SM |
199 | def test_cancel(self): |
200 | self.assertFalse(self._graph.is_canceled) | |
811644b8 | 201 | self._graph.cancel() |
5f25509b | 202 | self.assertTrue(self._graph.is_canceled) |
811644b8 | 203 | |
d24d5663 | 204 | # Test that Graph.run() raises bt2.Canceled if the graph gets canceled |
5f25509b SM |
205 | # during execution. |
206 | def test_cancel_while_running(self): | |
207 | class MyIter(_MyIter): | |
1d915789 | 208 | def __next__(self): |
5f25509b | 209 | return self._create_stream_beginning_message(self._stream) |
1d915789 | 210 | |
cfbd7cf3 | 211 | class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter): |
1d915789 PP |
212 | def __init__(self, params): |
213 | self._add_output_port('out') | |
214 | ||
215 | class MySink(bt2._UserSinkComponent): | |
216 | def __init__(self, params): | |
217 | self._add_input_port('in') | |
218 | ||
219 | def _consume(self): | |
5f25509b SM |
220 | # Pretend that somebody asynchronously cancelled the graph. |
221 | nonlocal graph | |
222 | graph.cancel() | |
1d915789 | 223 | |
5f25509b | 224 | return next(self._msg_iter) |
1d915789 | 225 | |
5f25509b SM |
226 | def _graph_is_configured(self): |
227 | self._msg_iter = self._input_ports['in'].create_message_iterator() | |
1d915789 | 228 | |
5f25509b SM |
229 | graph = bt2.Graph() |
230 | up = graph.add_component(MySource, 'down') | |
231 | down = graph.add_component(MySink, 'up') | |
232 | graph.connect_ports(up.output_ports['out'], down.input_ports['in']) | |
d24d5663 | 233 | with self.assertRaises(bt2.Canceled): |
5f25509b | 234 | graph.run() |
811644b8 PP |
235 | |
236 | def test_run(self): | |
5f25509b | 237 | class MyIter(_MyIter): |
811644b8 | 238 | def __next__(self): |
5f25509b SM |
239 | if self._at == 9: |
240 | raise StopIteration | |
241 | ||
242 | if self._at == 0: | |
243 | msg = self._create_stream_beginning_message(self._stream) | |
244 | elif self._at == 1: | |
245 | msg = self._create_packet_beginning_message(self._packet) | |
246 | elif self._at == 7: | |
247 | msg = self._create_packet_end_message(self._packet) | |
248 | elif self._at == 8: | |
249 | msg = self._create_stream_end_message(self._stream) | |
250 | else: | |
251 | msg = self._create_event_message(self._ec, self._packet) | |
811644b8 | 252 | |
811644b8 | 253 | self._at += 1 |
5602ef81 | 254 | return msg |
811644b8 | 255 | |
cfbd7cf3 | 256 | class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter): |
811644b8 PP |
257 | def __init__(self, params): |
258 | self._add_output_port('out') | |
259 | ||
260 | class MySink(bt2._UserSinkComponent): | |
261 | def __init__(self, params): | |
5f25509b | 262 | self._input_port = self._add_input_port('in') |
811644b8 PP |
263 | self._at = 0 |
264 | ||
265 | def _consume(comp_self): | |
5602ef81 | 266 | msg = next(comp_self._msg_iter) |
811644b8 PP |
267 | |
268 | if comp_self._at == 0: | |
5f25509b | 269 | self.assertIsInstance(msg, bt2.message._StreamBeginningMessage) |
811644b8 | 270 | elif comp_self._at == 1: |
5f25509b | 271 | self.assertIsInstance(msg, bt2.message._PacketBeginningMessage) |
811644b8 | 272 | elif comp_self._at >= 2 and comp_self._at <= 6: |
5f25509b | 273 | self.assertIsInstance(msg, bt2.message._EventMessage) |
e8ac1aae | 274 | self.assertEqual(msg.event.cls.name, 'salut') |
811644b8 | 275 | elif comp_self._at == 7: |
5f25509b | 276 | self.assertIsInstance(msg, bt2.message._PacketEndMessage) |
811644b8 | 277 | elif comp_self._at == 8: |
5f25509b | 278 | self.assertIsInstance(msg, bt2.message._StreamEndMessage) |
811644b8 PP |
279 | |
280 | comp_self._at += 1 | |
281 | ||
5f25509b SM |
282 | def _graph_is_configured(self): |
283 | self._msg_iter = self._input_port.create_message_iterator() | |
811644b8 PP |
284 | |
285 | src = self._graph.add_component(MySource, 'src') | |
286 | sink = self._graph.add_component(MySink, 'sink') | |
cfbd7cf3 FD |
287 | conn = self._graph.connect_ports( |
288 | src.output_ports['out'], sink.input_ports['in'] | |
289 | ) | |
811644b8 PP |
290 | self._graph.run() |
291 | ||
292 | def test_run_again(self): | |
5f25509b | 293 | class MyIter(_MyIter): |
811644b8 | 294 | def __next__(self): |
5f25509b | 295 | if self._at == 3: |
811644b8 PP |
296 | raise bt2.TryAgain |
297 | ||
5f25509b SM |
298 | if self._at == 0: |
299 | msg = self._create_stream_beginning_message(self._stream) | |
300 | elif self._at == 1: | |
301 | msg = self._create_packet_beginning_message(self._packet) | |
302 | elif self._at == 2: | |
303 | msg = self._create_event_message(self._ec, self._packet) | |
304 | ||
811644b8 | 305 | self._at += 1 |
5602ef81 | 306 | return msg |
811644b8 | 307 | |
cfbd7cf3 | 308 | class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter): |
811644b8 PP |
309 | def __init__(self, params): |
310 | self._add_output_port('out') | |
311 | ||
312 | class MySink(bt2._UserSinkComponent): | |
313 | def __init__(self, params): | |
5f25509b | 314 | self._input_port = self._add_input_port('in') |
811644b8 PP |
315 | self._at = 0 |
316 | ||
317 | def _consume(comp_self): | |
5f25509b | 318 | msg = next(comp_self._msg_iter) |
811644b8 | 319 | if comp_self._at == 0: |
5f25509b | 320 | self.assertIsInstance(msg, bt2.message._StreamBeginningMessage) |
811644b8 | 321 | elif comp_self._at == 1: |
5f25509b SM |
322 | self.assertIsInstance(msg, bt2.message._PacketBeginningMessage) |
323 | elif comp_self._at == 2: | |
324 | self.assertIsInstance(msg, bt2.message._EventMessage) | |
811644b8 | 325 | raise bt2.TryAgain |
5f25509b SM |
326 | else: |
327 | pass | |
811644b8 PP |
328 | |
329 | comp_self._at += 1 | |
330 | ||
5f25509b SM |
331 | def _graph_is_configured(self): |
332 | self._msg_iter = self._input_port.create_message_iterator() | |
811644b8 PP |
333 | |
334 | src = self._graph.add_component(MySource, 'src') | |
335 | sink = self._graph.add_component(MySink, 'sink') | |
cfbd7cf3 FD |
336 | conn = self._graph.connect_ports( |
337 | src.output_ports['out'], sink.input_ports['in'] | |
338 | ) | |
811644b8 PP |
339 | |
340 | with self.assertRaises(bt2.TryAgain): | |
341 | self._graph.run() | |
342 | ||
811644b8 | 343 | def test_run_error(self): |
5f25509b | 344 | raised_in_sink = False |
811644b8 | 345 | |
5f25509b | 346 | class MyIter(_MyIter): |
811644b8 | 347 | def __next__(self): |
5f25509b SM |
348 | # If this gets called after the sink raised an exception, it is |
349 | # an error. | |
350 | nonlocal raised_in_sink | |
351 | assert raised_in_sink is False | |
352 | ||
353 | if self._at == 0: | |
354 | msg = self._create_stream_beginning_message(self._stream) | |
355 | elif self._at == 1: | |
356 | msg = self._create_packet_beginning_message(self._packet) | |
357 | elif self._at == 2 or self._at == 3: | |
358 | msg = self._create_event_message(self._ec, self._packet) | |
359 | else: | |
811644b8 | 360 | raise bt2.TryAgain |
811644b8 | 361 | self._at += 1 |
5602ef81 | 362 | return msg |
811644b8 | 363 | |
cfbd7cf3 | 364 | class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter): |
811644b8 PP |
365 | def __init__(self, params): |
366 | self._add_output_port('out') | |
367 | ||
368 | class MySink(bt2._UserSinkComponent): | |
369 | def __init__(self, params): | |
5f25509b | 370 | self._input_port = self._add_input_port('in') |
811644b8 PP |
371 | self._at = 0 |
372 | ||
373 | def _consume(comp_self): | |
5f25509b | 374 | msg = next(comp_self._msg_iter) |
811644b8 | 375 | if comp_self._at == 0: |
5f25509b | 376 | self.assertIsInstance(msg, bt2.message._StreamBeginningMessage) |
811644b8 | 377 | elif comp_self._at == 1: |
5f25509b SM |
378 | self.assertIsInstance(msg, bt2.message._PacketBeginningMessage) |
379 | elif comp_self._at == 2: | |
380 | self.assertIsInstance(msg, bt2.message._EventMessage) | |
381 | elif comp_self._at == 3: | |
382 | nonlocal raised_in_sink | |
383 | raised_in_sink = True | |
811644b8 PP |
384 | raise RuntimeError('error!') |
385 | ||
386 | comp_self._at += 1 | |
387 | ||
5f25509b SM |
388 | def _graph_is_configured(self): |
389 | self._msg_iter = self._input_port.create_message_iterator() | |
811644b8 PP |
390 | |
391 | src = self._graph.add_component(MySource, 'src') | |
392 | sink = self._graph.add_component(MySink, 'sink') | |
cfbd7cf3 FD |
393 | conn = self._graph.connect_ports( |
394 | src.output_ports['out'], sink.input_ports['in'] | |
395 | ) | |
811644b8 PP |
396 | |
397 | with self.assertRaises(bt2.Error): | |
398 | self._graph.run() | |
399 | ||
5f25509b | 400 | def test_listeners(self): |
5602ef81 | 401 | class MyIter(bt2._UserMessageIterator): |
5f25509b SM |
402 | def __next__(self): |
403 | raise bt2.Stop | |
1d915789 | 404 | |
cfbd7cf3 | 405 | class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter): |
1d915789 PP |
406 | def __init__(self, params): |
407 | self._add_output_port('out') | |
5f25509b | 408 | self._add_output_port('zero') |
1d915789 PP |
409 | |
410 | class MySink(bt2._UserSinkComponent): | |
411 | def __init__(self, params): | |
412 | self._add_input_port('in') | |
1d915789 | 413 | |
5f25509b SM |
414 | def _consume(self): |
415 | raise bt2.Stop | |
1d915789 | 416 | |
a01b452b SM |
417 | def _graph_is_configured(self): |
418 | pass | |
419 | ||
5f25509b SM |
420 | def _port_connected(self, port, other_port): |
421 | self._add_input_port('taste') | |
1d915789 | 422 | |
5f25509b SM |
423 | def port_added_listener(component, port): |
424 | nonlocal calls | |
425 | calls.append((port_added_listener, component, port)) | |
1d915789 | 426 | |
cfbd7cf3 FD |
427 | def ports_connected_listener( |
428 | upstream_component, upstream_port, downstream_component, downstream_port | |
429 | ): | |
5f25509b | 430 | nonlocal calls |
cfbd7cf3 FD |
431 | calls.append( |
432 | ( | |
433 | ports_connected_listener, | |
434 | upstream_component, | |
435 | upstream_port, | |
436 | downstream_component, | |
437 | downstream_port, | |
438 | ) | |
439 | ) | |
5f25509b SM |
440 | |
441 | calls = [] | |
442 | self._graph.add_port_added_listener(port_added_listener) | |
443 | self._graph.add_ports_connected_listener(ports_connected_listener) | |
1d915789 PP |
444 | src = self._graph.add_component(MySource, 'src') |
445 | sink = self._graph.add_component(MySink, 'sink') | |
cfbd7cf3 | 446 | self._graph.connect_ports(src.output_ports['out'], sink.input_ports['in']) |
1d915789 | 447 | |
5f25509b SM |
448 | self.assertEqual(len(calls), 5) |
449 | ||
450 | self.assertIs(calls[0][0], port_added_listener) | |
451 | self.assertEqual(calls[0][1].name, 'src') | |
452 | self.assertEqual(calls[0][2].name, 'out') | |
453 | ||
454 | self.assertIs(calls[1][0], port_added_listener) | |
455 | self.assertEqual(calls[1][1].name, 'src') | |
456 | self.assertEqual(calls[1][2].name, 'zero') | |
457 | ||
458 | self.assertIs(calls[2][0], port_added_listener) | |
459 | self.assertEqual(calls[2][1].name, 'sink') | |
460 | self.assertEqual(calls[2][2].name, 'in') | |
461 | ||
462 | self.assertIs(calls[3][0], port_added_listener) | |
463 | self.assertEqual(calls[3][1].name, 'sink') | |
464 | self.assertEqual(calls[3][2].name, 'taste') | |
465 | ||
466 | self.assertIs(calls[4][0], ports_connected_listener) | |
467 | self.assertEqual(calls[4][1].name, 'src') | |
468 | self.assertEqual(calls[4][2].name, 'out') | |
469 | self.assertEqual(calls[4][3].name, 'sink') | |
470 | self.assertEqual(calls[4][4].name, 'in') | |
471 | ||
472 | def test_invalid_listeners(self): | |
5602ef81 | 473 | class MyIter(bt2._UserMessageIterator): |
811644b8 PP |
474 | def __next__(self): |
475 | raise bt2.Stop | |
476 | ||
cfbd7cf3 | 477 | class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter): |
811644b8 PP |
478 | def __init__(self, params): |
479 | self._add_output_port('out') | |
480 | self._add_output_port('zero') | |
481 | ||
811644b8 PP |
482 | class MySink(bt2._UserSinkComponent): |
483 | def __init__(self, params): | |
484 | self._add_input_port('in') | |
485 | ||
486 | def _consume(self): | |
487 | raise bt2.Stop | |
488 | ||
a01b452b SM |
489 | def _graph_is_configured(self): |
490 | pass | |
491 | ||
811644b8 PP |
492 | def _port_connected(self, port, other_port): |
493 | self._add_input_port('taste') | |
494 | ||
5f25509b SM |
495 | with self.assertRaises(TypeError): |
496 | self._graph.add_port_added_listener(1234) | |
497 | with self.assertRaises(TypeError): | |
498 | self._graph.add_ports_connected_listener(1234) | |
811644b8 | 499 | |
5f25509b SM |
500 | def test_raise_in_component_init(self): |
501 | class MySink(bt2._UserSinkComponent): | |
502 | def __init__(self, params): | |
503 | raise ValueError('oops!') | |
811644b8 | 504 | |
5f25509b SM |
505 | def _consume(self): |
506 | raise bt2.Stop | |
507 | ||
a01b452b SM |
508 | def _graph_is_configured(self): |
509 | pass | |
510 | ||
5f25509b SM |
511 | graph = bt2.Graph() |
512 | ||
513 | with self.assertRaises(bt2.Error): | |
514 | graph.add_component(MySink, 'comp') | |
515 | ||
516 | def test_raise_in_port_added_listener(self): | |
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 | ||
a01b452b SM |
524 | def _graph_is_configured(self): |
525 | pass | |
526 | ||
5f25509b SM |
527 | def port_added_listener(component, port): |
528 | raise ValueError('oh noes!') | |
529 | ||
530 | graph = bt2.Graph() | |
531 | graph.add_port_added_listener(port_added_listener) | |
532 | ||
533 | with self.assertRaises(bt2.Error): | |
534 | graph.add_component(MySink, 'comp') | |
535 | ||
536 | def test_raise_in_ports_connected_listener(self): | |
537 | class MyIter(bt2._UserMessageIterator): | |
538 | def __next__(self): | |
539 | raise bt2.Stop | |
540 | ||
cfbd7cf3 | 541 | class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter): |
5f25509b SM |
542 | def __init__(self, params): |
543 | self._add_output_port('out') | |
544 | ||
545 | class MySink(bt2._UserSinkComponent): | |
546 | def __init__(self, params): | |
547 | self._add_input_port('in') | |
548 | ||
549 | def _consume(self): | |
550 | raise bt2.Stop | |
811644b8 | 551 | |
a01b452b SM |
552 | def _graph_is_configured(self): |
553 | pass | |
554 | ||
cfbd7cf3 FD |
555 | def ports_connected_listener( |
556 | upstream_component, upstream_port, downstream_component, downstream_port | |
557 | ): | |
5f25509b | 558 | raise ValueError('oh noes!') |
811644b8 | 559 | |
5f25509b SM |
560 | graph = bt2.Graph() |
561 | graph.add_ports_connected_listener(ports_connected_listener) | |
562 | up = graph.add_component(MySource, 'down') | |
563 | down = graph.add_component(MySink, 'up') | |
811644b8 | 564 | |
5f25509b SM |
565 | with self.assertRaises(bt2.Error): |
566 | graph.connect_ports(up.output_ports['out'], down.input_ports['in']) |