def test_profiler_retains_multiple_calls():
profiler = Profiler()
profiler.start()
long_function_a()
long_function_b()
long_function_a()
long_function_b()
profiler.stop()
print(profiler.output_text())
frame = profiler.first_interesting_frame()
assert frame.function == 'test_profiler_retains_multiple_calls'
assert len(frame.children) == 4
def test_two_functions():
profiler = Profiler()
profiler.start()
long_function_a()
long_function_b()
profiler.stop()
print(profiler.output_text())
frame = profiler.first_interesting_frame()
assert frame.function == 'test_two_functions'
assert len(frame.children) == 2
frame_b, frame_a = sorted(frame.children, key=lambda f: f.time(), reverse=True)
assert frame_a.function == 'long_function_a'
assert frame_b.function == 'long_function_b'
assert 0.2 < frame_a.time() < 0.3
assert 0.45 < frame_b.time() < 0.55
