def test_basic(self):
md = {}
with self.assertRaises(ModelError):
measure = Measure.from_metadata(md)
measure = Measure.from_metadata("amount")
self.assertIsInstance(measure, Measure)
self.assertEqual("amount", measure.name)
md = {"name": "amount"}
measure = Measure.from_metadata(md)
self.assertEqual("amount", measure.name)
def test_create_default_aggregates(self):
measure = Measure.from_metadata("amount")
aggs = measure.default_aggregates()
self.assertEqual(1, len(aggs))
agg = aggs[0]
self.assertEqual("amount_sum", agg.name)
self.assertEqual("amount", agg.measure)
self.assertEqual("sum", agg.function)
self.assertIsNone(agg.formula)
md = {"name": "amount", "aggregates": ["sum", "min"]}
measure = Measure.from_metadata(md)
aggs = measure.default_aggregates()
self.assertEqual(2, len(aggs))
self.assertEqual("amount_sum", aggs[0].name)
self.assertEqual("amount", aggs[0].measure)
self.assertEqual("sum", aggs[0].function)
self.assertIsNone(aggs[0].formula)
self.assertEqual("amount_min", aggs[1].name)
self.assertEqual("amount", aggs[1].measure)
self.assertEqual("min", aggs[1].function)
self.assertIsNone(aggs[1].formula)
def test_copy(self):
md = {"name": "amount"}
measure = Measure.from_metadata(md)
measure2 = copy.deepcopy(measure)
self.assertEqual(measure, measure2)