def test_tracing_sampler_does_not_sample_too_often():
pytest.importorskip('yappi')
# pytest-cov cannot detect a callback function registered by
# :func:`sys.setprofile`.
class fake_profiler(object):
samples = []
@classmethod
def sample(cls, frame):
cls.samples.append(frame)
@classmethod
def count_and_clear_samples(cls):
count = len(cls.samples)
del cls.samples[:]
return count
sampler = TracingSampler(0.1)
sampler._profile(fake_profiler, None, None, None)
assert fake_profiler.count_and_clear_samples() == 1
sampler._profile(fake_profiler, None, None, None)
assert fake_profiler.count_and_clear_samples() == 0
spin(0.5)
sampler._profile(fake_profiler, None, None, None)
assert fake_profiler.count_and_clear_samples() == 1
def test_tracing_sampler_does_not_sample_too_often():
# pytest-cov cannot detect a callback function registered by
# :func:`sys.setprofile`.
class fake_profiler(object):
samples = []
@classmethod
def sample(cls, frame):
cls.samples.append(frame)
@classmethod
def count_and_clear_samples(cls):
count = len(cls.samples)
del cls.samples[:]
return count
sampler = TracingSampler(0.1)
sampler._profile(fake_profiler, None, None, None)
assert fake_profiler.count_and_clear_samples() == 1
sampler._profile(fake_profiler, None, None, None)
assert fake_profiler.count_and_clear_samples() == 0
spin(0.5)
sampler._profile(fake_profiler, None, None, None)
assert fake_profiler.count_and_clear_samples() == 1
def test_tracing_sampler():
_test_sampling_profiler(TracingSampler(0.0001))
def test_tracing_sampler():
pytest.importorskip('yappi')
_test_sampling_profiler(TracingSampler(0.0001))