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GeezerVison is showing github.com — pythonnet/tests/test_event.py at master · pythonnet/pythonnet Expand file tree/ Copy pathtest_event.pyMore file actions 618 lines (413 loc) · 14.2 KB / Copy pathtest_event.pyFile metadata and controls618 lines (413 loc) · 14.2 KB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 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461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 # -*- coding: utf-8 -*- """Test CLR event support.""" import pytest from Python.Test import EventTest, EventArgsTest from .utils import (CallableHandler, ClassMethodHandler, GenericHandler, MultipleHandler, StaticMethodHandler, VarCallableHandler, VariableArgsHandler) def test_public_instance_event(): """Test public instance events.""" ob = EventTest() handler = GenericHandler() assert handler.value is None ob.PublicEvent += handler.handler ob.OnPublicEvent(EventArgsTest(10)) assert handler.value == 10 ob.PublicEvent -= handler.handler def test_public_static_event(): """Test public static events.""" handler = GenericHandler() assert handler.value is None EventTest.PublicStaticEvent += handler.handler EventTest.OnPublicStaticEvent(EventArgsTest(10)) assert handler.value == 10 def test_protected_instance_event(): """Test protected instance events.""" ob = EventTest() handler = GenericHandler() assert handler.value is None ob.ProtectedEvent += handler.handler ob.OnProtectedEvent(EventArgsTest(10)) assert handler.value == 10 ob.ProtectedEvent -= handler.handler def test_protected_static_event(): """Test protected static events.""" handler = GenericHandler() assert handler.value is None EventTest.ProtectedStaticEvent += handler.handler EventTest.OnProtectedStaticEvent(EventArgsTest(10)) assert handler.value == 10 EventTest.ProtectedStaticEvent -= handler.handler def test_internal_events(): """Test internal events.""" with pytest.raises(AttributeError): _ = EventTest().InternalEvent with pytest.raises(AttributeError): _ = EventTest().InternalStaticEvent with pytest.raises(AttributeError): _ = EventTest.InternalStaticEvent def test_private_events(): """Test private events.""" with pytest.raises(AttributeError): _ = EventTest().PrivateEvent with pytest.raises(AttributeError): _ = EventTest().PrivateStaticEvent with pytest.raises(AttributeError): _ = EventTest.PrivateStaticEvent def test_multicast_event(): """Test multicast events.""" ob = EventTest() handler1 = GenericHandler() handler2 = GenericHandler() handler3 = GenericHandler() ob.PublicEvent += handler1.handler ob.PublicEvent += handler2.handler ob.PublicEvent += handler3.handler ob.OnPublicEvent(EventArgsTest(10)) assert handler1.value == 10 assert handler2.value == 10 assert handler3.value == 10 ob.OnPublicEvent(EventArgsTest(20)) assert handler1.value == 20 assert handler2.value == 20 assert handler3.value == 20 ob.PublicEvent -= handler1.handler ob.PublicEvent -= handler2.handler ob.PublicEvent -= handler3.handler def test_instance_method_handler(): """Test instance method handlers.""" ob = EventTest() handler = GenericHandler() ob.PublicEvent += handler.handler assert handler.value is None ob.OnPublicEvent(EventArgsTest(10)) assert handler.value == 10 ob.PublicEvent -= handler.handler assert handler.value == 10 ob.OnPublicEvent(EventArgsTest(20)) assert handler.value == 10 def test_var_args_instance_method_handler(): """Test vararg instance method handlers.""" ob = EventTest() handler = VariableArgsHandler() ob.PublicEvent += handler.handler assert handler.value is None ob.OnPublicEvent(EventArgsTest(10)) assert handler.value == 10 ob.PublicEvent -= handler.handler assert handler.value == 10 ob.OnPublicEvent(EventArgsTest(20)) assert handler.value == 10 def test_callableob_handler(): """Test callable ob handlers.""" ob = EventTest() handler = CallableHandler() ob.PublicEvent += handler assert handler.value is None ob.OnPublicEvent(EventArgsTest(10)) assert handler.value == 10 ob.PublicEvent -= handler assert handler.value == 10 ob.OnPublicEvent(EventArgsTest(20)) assert handler.value == 10 def test_var_args_callable_handler(): """Test varargs callable handlers.""" ob = EventTest() handler = VarCallableHandler() ob.PublicEvent += handler assert handler.value is None ob.OnPublicEvent(EventArgsTest(10)) assert handler.value == 10 ob.PublicEvent -= handler assert handler.value == 10 ob.OnPublicEvent(EventArgsTest(20)) assert handler.value == 10 def test_static_method_handler(): """Test static method handlers.""" ob = EventTest() handler = StaticMethodHandler() StaticMethodHandler.value = None ob.PublicEvent += handler.handler assert handler.value is None ob.OnPublicEvent(EventArgsTest(10)) assert handler.value == 10 ob.PublicEvent -= handler.handler assert handler.value == 10 ob.OnPublicEvent(EventArgsTest(20)) assert handler.value == 10 def test_class_method_handler(): """Test class method handlers.""" ob = EventTest() handler = ClassMethodHandler() ClassMethodHandler.value = None ob.PublicEvent += handler.handler assert handler.value is None ob.OnPublicEvent(EventArgsTest(10)) assert handler.value == 10 ob.PublicEvent -= handler.handler assert handler.value == 10 ob.OnPublicEvent(EventArgsTest(20)) assert handler.value == 10 def test_managed_instance_method_handler(): """Test managed instance method handlers.""" ob = EventTest() ob.PublicEvent += ob.GenericHandler assert ob.value == 0 ob.OnPublicEvent(EventArgsTest(10)) assert ob.value == 10 ob.PublicEvent -= ob.GenericHandler assert ob.value == 10 ob.OnPublicEvent(EventArgsTest(20)) assert ob.value == 10 def test_managed_static_method_handler(): """Test managed static method handlers.""" ob = EventTest() EventTest.s_value = 0 ob.PublicEvent += ob.StaticHandler assert EventTest.s_value == 0 ob.OnPublicEvent(EventArgsTest(10)) assert EventTest.s_value == 10 ob.PublicEvent -= ob.StaticHandler assert EventTest.s_value == 10 ob.OnPublicEvent(EventArgsTest(20)) assert EventTest.s_value == 10 def test_unbound_method_handler(): """Test failure mode for unbound method handlers.""" ob = EventTest() ob.PublicEvent += GenericHandler.handler with pytest.raises(TypeError): ob.OnPublicEvent(EventArgsTest(10)) ob.PublicEvent -= GenericHandler.handler def test_function_handler(): """Test function handlers.""" ob = EventTest() dict_ = {'value': None} def handler(sender, args, dict_=dict_): dict_['value'] = args.value ob.PublicEvent += handler assert dict_['value'] is None ob.OnPublicEvent(EventArgsTest(10)) assert dict_['value'] == 10 ob.PublicEvent -= handler assert dict_['value'] == 10 ob.OnPublicEvent(EventArgsTest(20)) assert dict_['value'] == 10 def test_out_function_handler(): """Test function handlers with Out arguments.""" ob = EventTest() value = 10 def handler(ignored): return value ob.OutIntEvent += handler result = ob.OnOutIntEvent(55) assert result == value ob.OutStringEvent += handler value = 'This is the event data' result = ob.OnOutStringEvent('Hello') assert result == value def test_ref_function_handler(): """Test function handlers with Ref arguments.""" ob = EventTest() value = 10 def handler(data): return value + data ob.RefIntEvent += ob.RefIntHandler ob.RefIntEvent += handler result = ob.OnRefIntEvent(5) assert result == value + 5 + 1 ob.RefStringEvent += ob.RefStringHandler ob.RefStringEvent += handler value = 'This is the event data' result = ob.OnRefStringEvent('!') assert result == value + '!!' def test_add_non_callable_handler(): """Test handling of attempts to add non-callable handlers.""" with pytest.raises(TypeError): ob = EventTest() ob.PublicEvent += 10 with pytest.raises(TypeError): ob = EventTest() ob.PublicEvent += "spam" with pytest.raises(TypeError): class Spam(object): pass ob = EventTest() ob.PublicEvent += Spam() def test_remove_multiple_handlers(): """Test removing multiple instances of the same handler.""" ob = EventTest() handler = MultipleHandler() h1 = handler.handler ob.PublicEvent += h1 h2 = handler.handler ob.PublicEvent += h2 ob.OnPublicEvent(EventArgsTest(10)) assert handler.value == 20 ob.PublicEvent -= h1 ob.OnPublicEvent(EventArgsTest(10)) assert handler.value == 30 ob.PublicEvent -= h2 ob.OnPublicEvent(EventArgsTest(10)) assert handler.value == 30 # try again, removing in a different order. ob = EventTest() handler = MultipleHandler() h1 = handler.handler ob.PublicEvent += h1 h2 = handler.handler ob.PublicEvent += h2 ob.OnPublicEvent(EventArgsTest(10)) assert handler.value == 20 ob.PublicEvent -= h2 ob.OnPublicEvent(EventArgsTest(10)) assert handler.value == 30 ob.PublicEvent -= h1 ob.OnPublicEvent(EventArgsTest(10)) assert handler.value == 30 def test_remove_multiple_static_handlers(): """Test removing multiple instances of a static handler.""" ob = EventTest() handler = MultipleHandler() h1 = handler.handler ob.PublicStaticEvent += h1 h2 = handler.handler ob.PublicStaticEvent += h2 ob.OnPublicStaticEvent(EventArgsTest(10)) assert handler.value == 20 ob.PublicStaticEvent -= h1 ob.OnPublicStaticEvent(EventArgsTest(10)) assert handler.value == 30 ob.PublicStaticEvent -= h2 ob.OnPublicStaticEvent(EventArgsTest(10)) assert handler.value == 30 # try again, removing in a different order. ob = EventTest() handler = MultipleHandler() h1 = handler.handler ob.PublicStaticEvent += h1 h2 = handler.handler ob.PublicStaticEvent += h2 ob.OnPublicStaticEvent(EventArgsTest(10)) assert handler.value == 20 ob.PublicStaticEvent -= h2 ob.OnPublicStaticEvent(EventArgsTest(10)) assert handler.value == 30 ob.PublicStaticEvent -= h1 ob.OnPublicStaticEvent(EventArgsTest(10)) assert handler.value == 30 def test_random_multiple_handlers(): """Test random subscribe / unsubscribe of the same handlers.""" import random ob = EventTest() handler = MultipleHandler() handler2 = MultipleHandler() ob.PublicEvent += handler2.handler ob.PublicEvent += handler2.handler handlers = [] for _ in range(30): method = handler.handler ob.PublicEvent += method handlers.append(method) ob.OnPublicEvent(EventArgsTest(10)) assert handler.value == 300 assert handler2.value == 20 handler.value = 0 handler2.value = 0 for i in range(30): item = random.choice(handlers) handlers.remove(item) ob.PublicEvent -= item handler.value = 0 ob.OnPublicEvent(EventArgsTest(10)) assert handler.value == (len(handlers) * 10) assert handler2.value == ((i + 1) * 20) handler2.value = 0 ob.OnPublicEvent(EventArgsTest(10)) assert handler2.value == 20 ob.PublicEvent -= handler2.handler handler2.value = 0 ob.OnPublicEvent(EventArgsTest(10)) assert handler2.value == 10 ob.PublicEvent -= handler2.handler handler2.value = 0 ob.OnPublicEvent(EventArgsTest(10)) assert handler2.value == 0 def test_remove_internal_call_handler(): """Test remove on an event sink implemented w/internalcall.""" ob = EventTest() def h(sender, args): pass ob.PublicEvent += h ob.PublicEvent -= h def test_remove_unknown_handler(): """Test removing an event handler that was never added.""" with pytest.raises(ValueError): ob = EventTest() handler = GenericHandler() ob.PublicEvent -= handler.handler def test_handler_callback_failure(): """Test failure mode for inappropriate handlers.""" class BadHandler(object): def handler(self, one): return 'too many' ob = EventTest() handler = BadHandler() with pytest.raises(TypeError): ob.PublicEvent += handler.handler ob.OnPublicEvent(EventArgsTest(10)) ob.PublicEvent -= handler.handler class BadHandler(object): def handler(self, one, two, three, four, five): return 'not enough' ob = EventTest() handler = BadHandler() with pytest.raises(TypeError): ob.PublicEvent += handler.handler ob.OnPublicEvent(EventArgsTest(10)) ob.PublicEvent -= handler.handler def test_incorrect_invokation(): """Test incorrect invocation of events.""" ob = EventTest() handler = GenericHandler() ob.PublicEvent += handler.handler with pytest.raises(TypeError): ob.OnPublicEvent() with pytest.raises(TypeError): ob.OnPublicEvent(32) ob.PublicEvent -= handler.handler def test_explicit_cls_event_registration(): """Test explicit CLS event registration.""" from Python.Test import EventHandlerTest ob = EventTest() handler = GenericHandler() delegate = EventHandlerTest(handler.handler) ob.add_PublicEvent(delegate) assert handler.value is None ob.OnPublicEvent(EventArgsTest(10)) assert handler.value == 10 ob.remove_PublicEvent(delegate) assert handler.value == 10 ob.OnPublicEvent(EventArgsTest(20)) assert handler.value == 10 def test_implicit_cls_event_registration(): """Test implicit CLS event registration.""" with pytest.raises(TypeError): ob = EventTest() handler = GenericHandler() ob.add_PublicEvent(handler.handler) def test_event_descriptor_abuse(): """Test event descriptor abuse.""" with pytest.raises(TypeError): del EventTest.PublicEvent with pytest.raises(TypeError): del EventTest.__dict__['PublicEvent'] desc = EventTest.__dict__['PublicEvent'] with pytest.raises(TypeError): desc.__get__(0, 0) with pytest.raises(TypeError): desc.__set__(0, 0) with pytest.raises(TypeError): ob = EventTest() ob.PublicEvent = 0 with pytest.raises(TypeError): EventTest.PublicStaticEvent = 0 |
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