def test_externalize_reacts_to_exceptions(self):
"""If unhandled, exceptions in externalize hang forever. Catch them."""
def fail():
raise Exception()
test = BasicPerfTest('','')
with self.assertRaises(Exception):
test._externalize(fail)
def test_externalize_runs_somewhere_else(self):
success = True
def toggle():
global success
success = False
test = BasicPerfTest('', '')
test._externalize(toggle)
self.assertTrue(success)
def test_profile_runs_both(self):
test = BasicPerfTest('for x in list(range(10)): pass')
results = test(samples=100)
self.assertTrue(results.runtime.runtime > 0)
self.assertTrue(results.memory.max > 0)
def test_memory_behaves_resonably(self):
"""Check that obviously more consuming code is measured as bigger."""
test1 = BasicPerfTest('for x in list(range(1)): pass')
test2 = BasicPerfTest('for x in list(range(10000)): pass')
mem1 = test1.memory()
mem2 = test2.memory()
self.assertTrue(mem1.max < mem2.max)
def test_time_behaves_reasonably(self):
"""Check that obviously longer code is measured as longer running."""
test1 = BasicPerfTest('for x in range(10): pass')
test2 = BasicPerfTest('for x in range(10000): pass')
time1 = test1.time(samples=100)
time2 = test2.time(samples=100)
self.assertTrue(time1.runtime < time2.runtime)