def test_get(self):
"""Test getting statistics."""
statistics = Statistics()
snapshot_length = len(statistics.snapshot())
self.assertEqual(
snapshot_length, 0,
"Error: initial state has no time statistics. "
"Actual number = %d" % snapshot_length)
stats = statistics.get_op_statistic('EnumerateInstances')
snapshot_length = len(statistics.snapshot())
self.assertEqual(
snapshot_length, 0, "Error: getting a new stats with a disabled "
"statistics results in no time statistics. "
"Actual number = %d" % snapshot_length)
self.assertEqual(stats.container, statistics)
self.assertEqual(stats.name, "disabled")
self.assertEqual(stats.count, 0)
self.assertEqual(stats.avg_time, 0)
self.assertEqual(stats.min_time, float('inf'))
self.assertEqual(stats.max_time, 0)
self.assertEqual(stats.avg_request_len, 0)
self.assertEqual(stats.min_request_len, float('inf'))
self.assertEqual(stats.max_request_len, 0)
statistics.enable()
method_name = 'OpenEnumerateInstances'
stats = statistics.get_op_statistic(method_name)
snapshot_length = len(statistics.snapshot())
self.assertEqual(
snapshot_length, 1, "Error: getting a new stats with an enabled "
"statistics results in one time statistics. "
"Actual number = %d" % snapshot_length)
self.assertEqual(stats.container, statistics)
self.assertEqual(stats.name, method_name)
self.assertEqual(stats.count, 0)
self.assertEqual(stats.avg_time, 0)
self.assertEqual(stats.min_time, float('inf'))
self.assertEqual(stats.max_time, 0)
statistics.get_op_statistic(method_name)
snapshot_length = len(statistics.snapshot())
self.assertEqual(
snapshot_length, 1, "Error: getting an existing stats with an "
"enabled statistics results in the same number of "
"statistics. "
"Actual number = %d" % snapshot_length)
def test_measure_disabled(self):
"""Test measuring time with disabled statistics."""
statistics = Statistics()
duration = 0.2
stats = statistics.get_op_statistic('GetClass')
self.assertEqual(stats.name, 'disabled')
stats.start_timer()
time.sleep(duration)
stats.stop_timer(100, 200)
for _, stats in statistics.snapshot():
self.assertEqual(stats.count, 0)
self.assertEqual(stats.avg_time, 0)
self.assertEqual(stats.min_time, float('inf'))
self.assertEqual(stats.max_time, 0)
def test_Statistics_get_op_statistic(testcase, init_enable, method_name,
exp_snapshot_len, exp_op_stats_attrs):
# pylint: disable=unused-argument
"""
Test function for Statistics.get_op_statistic()
"""
statistics = Statistics(enable=init_enable)
# The code to be tested
op_stats = statistics.get_op_statistic(method_name)
snapshot_length = len(statistics.snapshot())
assert snapshot_length == exp_snapshot_len
for attr_name in exp_op_stats_attrs:
exp_attr_value = exp_op_stats_attrs[attr_name]
attr_value = getattr(op_stats, attr_name)
assert attr_value == exp_attr_value, \
"Unexpected op_stats attribute '{}'".format(attr_name)
def test_Statistics_measure_disabled():
"""
Test measuring time with disabled statistics.
"""
statistics = Statistics()
duration = 0.2
stats = statistics.get_op_statistic('GetClass')
assert stats.name == 'disabled'
stats.start_timer()
time.sleep(duration)
stats.stop_timer(100, 200)
for _, stats in statistics.snapshot():
assert stats.count == 0
assert stats.avg_time == 0
assert stats.min_time == float('inf')
assert stats.max_time == 0