def test_create_Sample_success_datapoint(self):
''' creating a Sample should succeed for a datapoint metric '''
m = metrics.Datapoint('uri')
t = TimeUUID()
value = 1
s = metrics.Sample(metric=m, t=t, value=value)
self.assertEqual(s.t, t)
self.assertEqual(s.metric, m)
self.assertEqual(s.value, decimal.Decimal(value))
def test_create_Sample_success_datasource(self):
''' creating a Sample should succeed for a datasource metric '''
m = metrics.Datasource('uri')
t = TimeUUID()
value = 'something'
s = metrics.Sample(metric=m, t=t, value=value)
self.assertEqual(s.t, t)
self.assertEqual(s.metric, m)
self.assertEqual(s.value, value)
def test_create_Sample_failure_invalid_value_for_datapoint(self):
''' creating a Sample object should fail if we pass an invalid value for a datasource sample '''
met = metrics.Datapoint('uri')
t = TimeUUID()
values = [
None, 'string', ('a', 'tuple'), ['a', 'list'], {'set'}, {
'a': 'dict'
},
uuid.uuid4()
]
for value in values:
with self.assertRaises(TypeError) as cm:
s = metrics.Sample(metric=met, t=t, value=value)
self.assertEqual(str(cm.exception), 'value not a number')
def test_create_Sample_failure_non_Metric_obj(self):
''' creating a Sample object should fail if we pass a non Metric object '''
mets = [
None, 1, 1.1, 'string', ('a', 'tuple'), ['a', 'list'], {'set'}, {
'a': 'dict'
},
uuid.uuid4()
]
t = TimeUUID()
value = 5
for m in mets:
with self.assertRaises(TypeError) as cm:
s = metrics.Sample(metric=m, t=t, value=value)
self.assertEqual(str(cm.exception), 'Invalid metric parameter')
def test_create_Sample_failure_invalid_t(self):
''' creating a Sample object should fail if we pass an invalid t '''
mets = [metrics.Datasource('uri'), metrics.Datapoint('uri')]
ts = [
None, 1, 1.1, 'string', ('a', 'tuple'), ['a', 'list'], {'set'}, {
'a': 'dict'
},
uuid.uuid4()
]
value = 5
for m in mets:
for t in ts:
with self.assertRaises(TypeError) as cm:
s = metrics.Sample(metric=m, t=t, value=value)
self.assertEqual(str(cm.exception),
'value is not a valid TimeUUID: ' + str(t))