def test_no_emittion(self):
mediator = Mediator()
processor = Processor('.+')
class EventA(Event):
pass
class EventB(Event):
pass
def foo(context, event):
return NoEmittion(EventB, 'test')
def boo(context, event):
pass
handler_a = Handler(EventA, foo, [EventB])
handler_b = Handler(EventB, boo)
mediator.register_event_handler(
handler_a,
handler_b
)
context = Context(mediator, EventA(), processor)
context.process()
process_flow = context.process_flow
self.assertIsNone(process_flow.find_event(EventB))
self.assertEqual(process_flow.why_no_emittion(EventB), 'test')
def test_emit_unexcepted_events(self):
mediator = Mediator()
processor = Processor('.+')
class EventA(Event):
pass
class EventB(Event):
pass
def foo(context, event):
return Emittion(EventB())
def boo(context, event):
pass
handler_1 = Handler(EventA, foo)
handler_2 = Handler(EventB, boo)
mediator.register_event_handler(
handler_1,
handler_2
)
context = Context(mediator, EventA(), processor)
with self.assertRaises(TypeError):
context.process()
def test_find_event_in_handler(self):
mediator = Mediator()
processor = Processor('.+')
class EventA(Event):
id = Field(int)
class EventB(Event):
pass
def foo(context, event):
return Emittion(EventB())
def boo(context, event):
event_a = context.find_event(EventA)
self.assertIsNotNone(event_a)
self.assertEqual(event_a.id, 99)
handler_1 = Handler(EventA, foo, [EventB])
handler_2 = Handler(EventB, boo)
mediator.register_event_handler(
handler_1,
handler_2
)
context = Context(mediator, EventA(id=99), processor)
context.process()
self.assertEqual(processor.exception_count, 0)
def test_emit_excepted_events(self):
mediator = Mediator()
processor = Processor('.+')
class EventA(Event):
pass
class EventB(Event):
pass
def foo(context, event):
return Emittion(EventB())
def boo(context, event):
pass
handler_1 = Handler(EventA, foo, [EventB])
handler_2 = Handler(EventB, boo)
mediator.register_event_handler(
handler_1,
handler_2
)
context = Context(mediator, EventA(), processor)
context.process()
process_flow = context.process_flow
handler_node = process_flow.root.child_nodes[0]
handler_runtime = handler_node.active_item
self.assertTrue(handler_runtime.succeeded)
def test_active_process_flow(self):
mediator = Mediator()
processor = Processor('.+')
class EventA(Event):
event_a_field = Field(int, 100);
class EventB(Event):
event_b_field = Field(str, 'hello');
class EventC(Event):
event_c_field = Field(float, 1.1);
class EventD(Event):
event_d_field = Field(dict, {'x': 3, 'y': 4});
class EventE(Event):
event_e_field = Field(list, [3, 8, 7]);
def fooA_BC(context, event):
import time
time.sleep(0.5)
return (Emittion(EventB()), NoEmittion(EventC, 'Test No Emmittion EventC'))
def fooA(context, event):
pass
def fooB_D(context, event):
return Emittion(EventD())
def fooC(context, event):
pass
def fooD(context, event):
1 / 0
handler_1 = Handler(EventA, fooA_BC, [EventB, EventC])
handler_2 = Handler(EventA, fooA)
handler_3 = Handler(EventB, fooB_D, [EventD])
handler_4 = Handler(EventC, fooC)
handler_5 = Handler(EventD, fooD)
mediator.register_event_handler(
handler_1,
handler_2,
handler_3,
handler_4,
handler_5
)
context = Context(mediator, EventA(), processor)
context.process()
process_flow = context.process_flow
diagram = Diagram(process_flow=process_flow)
self.assertIsNotNone(diagram.json)
def test_processor_statistics(self):
mediator = Mediator()
processor = Processor('.+')
class EventA(Event):
sleep_seconds = Field(float, 0.05)
raise_exception = Field(bool, False)
class EventB(Event):
pass
def fooA_B(context, event):
import time
time.sleep(event.sleep_seconds)
if event.raise_exception:
raise Exception()
return NoEmittion(EventB, 'test')
def fooB(context, event):
pass
handler_a = Handler(EventA, fooA_B, [EventB])
handler_b = Handler(EventB, fooB)
mediator.register_event_handler(
handler_a,
handler_b
)
self.assertEqual(processor.process_count, 0)
self.assertEqual(processor.exception_count, 0)
self.assertEqual(processor.event_process_count(EventA), 0)
self.assertEqual(processor.event_process_count(EventB), 0)
self.assertEqual(processor.event_exception_count(EventA), 0)
self.assertEqual(processor.event_exception_count(EventB), 0)
self.assertEqual(processor.event_min_time_cost(EventA), -1)
self.assertEqual(processor.event_min_time_cost(EventB), -1)
self.assertEqual(processor.event_max_time_cost(EventA), -1)
self.assertEqual(processor.event_max_time_cost(EventB), -1)
for sleep_seconds, raise_exception in (
(0.01, False),
(0.05, False),
(0.02, True)):
context = Context(
mediator,
EventA(sleep_seconds=sleep_seconds,
raise_exception=raise_exception),
processor)
context.process()
self.assertEqual(processor.process_count, 3)
self.assertEqual(processor.exception_count, 1)
self.assertEqual(processor.event_process_count(EventA), 3)
self.assertEqual(processor.event_process_count(EventB), 0)
self.assertEqual(processor.event_exception_count(EventA), 1)
self.assertEqual(processor.event_exception_count(EventB), 0)
self.assertLess(processor.event_min_time_cost(EventA), 15)
self.assertEqual(processor.event_min_time_cost(EventB), -1)
self.assertGreaterEqual(processor.event_max_time_cost(EventA), 50)
self.assertEqual(processor.event_max_time_cost(EventB), -1)
def test_process_flow_active(self):
mediator = Mediator()
processor = Processor('.+')
class EventA(Event):
pass
class EventB(Event):
pass
class EventC(Event):
pass
class EventD(Event):
pass
def fooBC(context, event):
return (Emittion(EventB()), Emittion(EventC()))
def fooD(context, event):
return Emittion(EventD())
def foo(context, event):
pass
def fooEx(context, event):
1 / 0
handler_1 = Handler(EventA, fooBC, [EventB, EventC])
handler_2 = Handler(EventA, foo)
handler_3 = Handler(EventB, fooD, [EventD])
handler_4 = Handler(EventC, foo)
handler_5 = Handler(EventD, fooEx)
mediator.register_event_handler(
handler_1,
handler_2,
handler_3,
handler_4,
handler_5
)
context = Context(mediator, EventA(), processor)
context.process()
process_flow = context.process_flow
event_node_1 = process_flow.root
handler_node_1 = event_node_1.child_nodes[0]
handler_node_2 = event_node_1.child_nodes[1]
event_node_2 = handler_node_1.child_nodes[0]
event_node_3 = handler_node_1.child_nodes[1]
handler_node_3 = event_node_2.child_nodes[0]
handler_node_4 = event_node_3.child_nodes[0]
event_node_4 = handler_node_3.child_nodes[0]
handler_node_5 = event_node_4.child_nodes[0]
self.assertIsInstance(event_node_1.active_item, EventA)
self.assertIsInstance(event_node_2.active_item, EventB)
self.assertIsInstance(event_node_3.active_item, EventC)
self.assertIsInstance(event_node_4.active_item, EventD)
self.assertTrue(handler_node_1.active_item.succeeded)
self.assertTrue(handler_node_2.active_item.succeeded)
self.assertTrue(handler_node_3.active_item.succeeded)
self.assertTrue(handler_node_4.active_item.succeeded)
self.assertFalse(handler_node_5.active_item.succeeded)
self.assertIsNotNone(process_flow.find_event(EventA))
self.assertIsNotNone(process_flow.find_event(EventB))
self.assertIsNotNone(process_flow.find_event(EventC))
self.assertIsNotNone(process_flow.find_event(EventD))
self.assertTrue(event_node_1.active)
self.assertTrue(event_node_2.active)
self.assertTrue(event_node_3.active)
self.assertTrue(event_node_4.active)
self.assertTrue(handler_node_1.active)
self.assertTrue(handler_node_2.active)
self.assertTrue(handler_node_3.active)
self.assertTrue(handler_node_4.active)
self.assertTrue(handler_node_5.active)