def test_merge_with_cache_with_different_step_sum_no_raw_step(self):
# Data values from the Reader:
start = 1465844460 # (Mon Jun 13 19:01:00 UTC 2016)
window_size = 7200 # (2 hour)
step = 60 # (1 minute)
# Fill in half the data. Nones for the rest.
values = list(range(0, window_size // 2, step))
for i in range(0, window_size // 2, step):
values.append(None)
# Generate data that would normally come from Carbon.
# Step will be different since that is what we are testing
cache_results = []
for i in range(start + window_size // 2, start + window_size, 1):
cache_results.append((i, 1))
# merge the db results with the cached results
values = merge_with_cache(cached_datapoints=cache_results,
start=start,
step=step,
values=values,
func='sum')
# Generate the expected values
expected_values = list(range(0, window_size // 2, step))
for i in range(0, window_size // 2, step):
expected_values.append(60)
self.assertEqual(expected_values, values)
def test_merge_with_cache_when_previous_window_in_cache(self):
start = 1465844460 # (Mon Jun 13 19:01:00 UTC 2016)
window_size = 3600 # (1 hour)
step = 60 # (1 minute)
# simulate db data, no datapoints for the given
# time window
values = self._create_none_window(step)
# simulate cached data with datapoints only
# from the previous window
cache_results = []
prev_window_start = start - window_size
prev_window_end = prev_window_start + window_size
for i in range(prev_window_start, prev_window_end, step):
cache_results.append((i, 1))
# merge the db results with the cached results
values = merge_with_cache(cached_datapoints=cache_results,
start=start,
step=step,
values=values)
# the merged results should be a None window because:
# - db results for the window are None
# - cache does not contain relevant points
self.assertEqual(self._create_none_window(step), values)
def test_merge_with_cache_with_different_step_bad(self):
# Data values from the Reader:
start = 1465844460 # (Mon Jun 13 19:01:00 UTC 2016)
window_size = 7200 # (2 hour)
step = 60 # (1 minute)
# Fill in half the data. Nones for the rest.
values = list(range(0, window_size // 2, step))
for i in range(0, window_size // 2, step):
values.append(None)
# Generate data that would normally come from Carbon.
# Step will be different since that is what we are testing
cache_results = []
for i in range(start + window_size // 2, start + window_size, 1):
cache_results.append((i, 1))
# merge the db results with the cached results
with self.assertRaisesRegexp(
Exception, "Invalid consolidation function: 'bad_function'"):
values = merge_with_cache(cached_datapoints=cache_results,
start=start,
step=step,
values=values,
func='bad_function')
def test_merge_with_cache_with_different_step_sum_no_raw_step(self):
# Data values from the Reader:
start = 1465844460 # (Mon Jun 13 19:01:00 UTC 2016)
window_size = 7200 # (2 hour)
step = 60 # (1 minute)
# Fill in half the data. Nones for the rest.
values = list(range(0, window_size//2, step))
for i in range(0, window_size//2, step):
values.append(None)
# Generate data that would normally come from Carbon.
# Step will be different since that is what we are testing
cache_results = []
for i in range(start+window_size//2, start+window_size, 1):
cache_results.append((i, 1))
# merge the db results with the cached results
values = merge_with_cache(
cached_datapoints=cache_results,
start=start,
step=step,
values=values,
func='sum'
)
# Generate the expected values
expected_values = list(range(0, window_size//2, step))
for i in range(0, window_size//2, step):
expected_values.append(60)
self.assertEqual(expected_values, values)
def test_merge_with_cache_when_previous_window_in_cache(self):
start = 1465844460 # (Mon Jun 13 19:01:00 UTC 2016)
window_size = 3600 # (1 hour)
step = 60 # (1 minute)
# simulate db data, no datapoints for the given
# time window
values = self._create_none_window(step)
# simulate cached data with datapoints only
# from the previous window
cache_results = []
prev_window_start = start - window_size
prev_window_end = prev_window_start + window_size
for i in range(prev_window_start, prev_window_end, step):
cache_results.append((i, 1))
# merge the db results with the cached results
values = merge_with_cache(
cached_datapoints=cache_results,
start=start,
step=step,
values=values
)
# the merged results should be a None window because:
# - db results for the window are None
# - cache does not contain relevant points
self.assertEqual(self._create_none_window(step), values)
def test_merge_with_cache_with_different_step_bad(self):
# Data values from the Reader:
start = 1465844460 # (Mon Jun 13 19:01:00 UTC 2016)
window_size = 7200 # (2 hour)
step = 60 # (1 minute)
# Fill in half the data. Nones for the rest.
values = list(range(0, window_size//2, step))
for i in range(0, window_size//2, step):
values.append(None)
# Generate data that would normally come from Carbon.
# Step will be different since that is what we are testing
cache_results = []
for i in range(start+window_size//2, start+window_size, 1):
cache_results.append((i, 1))
# merge the db results with the cached results
with self.assertRaisesRegexp(Exception, "Invalid consolidation function: 'bad_function'"):
values = merge_with_cache(
cached_datapoints=cache_results,
start=start,
step=step,
values=values,
func='bad_function'
)
