53 lines
1.6 KiB
Python
53 lines
1.6 KiB
Python
import unittest
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import threading
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import greenlet
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class SomeError(Exception):
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pass
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class TracingTests(unittest.TestCase):
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if greenlet.GREENLET_USE_TRACING:
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def test_greenlet_tracing(self):
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main = greenlet.getcurrent()
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actions = []
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def trace(*args):
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actions.append(args)
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def dummy():
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pass
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def dummyexc():
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raise SomeError()
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oldtrace = greenlet.settrace(trace)
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try:
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g1 = greenlet.greenlet(dummy)
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g1.switch()
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g2 = greenlet.greenlet(dummyexc)
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self.assertRaises(SomeError, g2.switch)
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finally:
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greenlet.settrace(oldtrace)
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self.assertEqual(actions, [
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('switch', (main, g1)),
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('switch', (g1, main)),
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('switch', (main, g2)),
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('throw', (g2, main)),
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])
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def test_exception_disables_tracing(self):
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main = greenlet.getcurrent()
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actions = []
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def trace(*args):
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actions.append(args)
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raise SomeError()
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def dummy():
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main.switch()
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g = greenlet.greenlet(dummy)
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g.switch()
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oldtrace = greenlet.settrace(trace)
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try:
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self.assertRaises(SomeError, g.switch)
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self.assertEqual(greenlet.gettrace(), None)
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finally:
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greenlet.settrace(oldtrace)
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self.assertEqual(actions, [
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('switch', (main, g)),
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])
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