def test_hashing_is_consistent(self):
percentage = Percentage(value=0.67001)
bucketer = ConsistentHashPercentageBucketer(percentage=percentage)
for _ in range(10):
self.assertTrue(
bucketer.check(foo="bar", herp=99, derp=False) # score = 0.67
)
def test_sets_correct_data(self):
percentage = Percentage(value=0.5)
data = {
"type": PercentageBucketer.get_type(),
"percentage": percentage.to_dict(),
}
bucketer = PercentageBucketer.from_dict(data)
self.assertEqual(data, bucketer.to_dict())
def test_returns_correct_data(self):
percentage = Percentage(value=0.5)
bucketer = PercentageBucketer(percentage=percentage)
expected = {
"type": PercentageBucketer.get_type(),
"percentage": percentage.to_dict(),
}
self.assertEqual(expected, bucketer.to_dict())
def test_passes_arguments_through_to_created_bucketer(self):
percentage = 0.21
bucketer = BucketerFactory.create(
{
"type": PercentageBucketer.get_type(),
"percentage": Percentage(value=percentage).to_dict(),
}
)
self.assertEqual(percentage, bucketer.percentage)
def test_sets_correct_data(self):
percentage = Percentage(value=0.5)
key_whitelist = ["foo"]
data = {
"type": ConsistentHashPercentageBucketer.get_type(),
"key_whitelist": key_whitelist,
"percentage": percentage.to_dict(),
}
bucketer = ConsistentHashPercentageBucketer.from_dict(data)
self.assertEqual(data, bucketer.to_dict())
def test_bucketer_gets_included_in_meta(self):
percentage_value = 0.1
bucketer = PercentageBucketer(percentage=Percentage(percentage_value))
self.store.create(self.name)
self.flag.set_bucketer(bucketer)
meta = self.flag.get_meta()
self.assertEqual(bucketer.to_dict(), meta["bucketer"])
def test_returns_correct_data(self):
percentage = Percentage(value=0.5)
key_whitelist = ["foo"]
bucketer = ConsistentHashPercentageBucketer(
key_whitelist=key_whitelist, percentage=percentage)
expected = {
"type": ConsistentHashPercentageBucketer.get_type(),
"key_whitelist": key_whitelist,
"percentage": percentage.to_dict(),
}
self.assertEqual(expected, bucketer.to_dict())
def test_bucketer_gets_included_in_meta(self):
feature_name = self.txt()
percentage_value = 0.1
bucketer = PercentageBucketer(percentage=Percentage(percentage_value))
self.client.create(feature_name)
self.client.set_bucketer(feature_name, bucketer)
meta = self.client.get_meta(feature_name)
self.assertEqual(bucketer.to_dict(), meta["bucketer"])
def test_emits_post_set_bucketer_event(self):
feature_name = self.txt()
events = FlipperEventEmitter()
listener = MagicMock()
events.on(EventType.POST_SET_BUCKETER, f=listener)
percentage_value = 0.1
bucketer = PercentageBucketer(percentage=Percentage(percentage_value))
self.client.events = events
self.store.create(feature_name)
self.client.set_bucketer(feature_name, bucketer)
listener.assert_called_once_with(feature_name, bucketer)
def test_sets_bucketer(self):
percentage_value = 0.1
bucketer = PercentageBucketer(percentage=Percentage(percentage_value))
meta = FeatureFlagStoreMeta(self.now)
meta.update(bucketer=bucketer)
self.assertEqual(percentage_value, meta.bucketer.percentage)
def test_always_returns_false_when_percentage_is_zero_when_including_conditions(
self): # noqa: E501
percentage = Percentage(value=0.0)
bucketer = ConsistentHashPercentageBucketer(percentage=percentage)
self.assertFalse(bucketer.check(foo="bar")) # score = 0.79
def test_returns_true_when_conditions_hash_to_value_equal_to_percentage(
self): # noqa: E501
percentage = Percentage(value=0.79)
bucketer = ConsistentHashPercentageBucketer(percentage=percentage)
self.assertTrue(bucketer.check(foo="bar")) # score = 0.79
def test_matches_value_provided_in_constructor(self):
value = 0.8
percentage = Percentage(value=value)
self.assertEqual(value, percentage.value)
def test_always_returns_false_when_percentage_is_zero(self):
percentage = Percentage(value=0.0)
bucketer = PercentageBucketer(percentage=percentage)
randomizer = MagicMock(return_value=0.0)
self.assertFalse(bucketer.check(randomizer=randomizer))
def test_returns_true_when_randomized_is_equal_to_percentage(self):
percentage = Percentage(value=0.5)
bucketer = PercentageBucketer(percentage=percentage)
randomizer = MagicMock(return_value=0.5)
self.assertTrue(bucketer.check(randomizer=randomizer))
def test_returns_true_when_randomized_is_equal_to_percentage(self):
percentage = Percentage(value=0.32)
bucketer = ConsistentHashPercentageBucketer(percentage=percentage)
self.assertTrue(bucketer.check()) # score = 0.32
def test_is_correct_value(self):
percentage = Percentage()
self.assertEqual("Percentage", percentage.get_type())
def test_returns_correct_values(self):
value = 0.8
percentage = Percentage(value=value)
expected = {"value": value, "type": Percentage.get_type()}
self.assertEqual(expected, percentage.to_dict())
def test_defaults_to_1_dot_0(self):
percentage = Percentage()
self.assertEqual(1.0, percentage.value)
def test_returns_percentage_value_as_float(self):
percentage_raw_value = 0.5
percentage = Percentage(value=percentage_raw_value)
bucketer = PercentageBucketer(percentage=percentage)
self.assertEqual(percentage_raw_value, bucketer.percentage)
def test_includes_currect_bucketer(self):
bucketer = PercentageBucketer(percentage=Percentage(0.3))
meta = FeatureFlagStoreMeta(self.now, bucketer=bucketer)
self.assertEqual(bucketer.to_dict(), meta.to_dict()["bucketer"])
def test_returns_false_when_randomized_is_greater_than_percentage(self):
percentage = Percentage(value=0.5)
bucketer = PercentageBucketer(percentage=percentage)
randomizer = MagicMock(return_value=0.6)
self.assertFalse(bucketer.check(randomizer=randomizer))
def test_when_comparison_is_less_then_value_it_returns_true(self):
percentage = Percentage(0.5)
self.assertTrue(0.4 <= percentage)
def test_returns_false_when_randomized_is_greater_than_percentage(self):
percentage = Percentage(value=0.2)
bucketer = ConsistentHashPercentageBucketer(percentage=percentage)
self.assertFalse(bucketer.check()) # score = 0.32
def test_can_create_with_bucketer(self):
bucketer = PercentageBucketer(percentage=Percentage(0.3))
json = {"created_date": self.now, "bucketer": bucketer.to_dict()}
meta = FeatureFlagStoreMeta.from_dict(json)
self.assertEqual(bucketer.to_dict(), meta.bucketer.to_dict())
def test_when_comparison_is_equal_to_value_it_returns_true(self):
percentage = Percentage(0.5)
self.assertTrue(0.5 <= percentage)
def test_always_returns_false_when_percentage_is_zero(self):
percentage = Percentage(value=0.0)
bucketer = ConsistentHashPercentageBucketer(percentage=percentage)
self.assertFalse(bucketer.check()) # score = 0.32
def test_when_comparison_is_greater_than_value_it_returns_false(self):
percentage = Percentage(0.5)
self.assertFalse(0.6 <= percentage)
def test_returns_false_when_conditions_hash_to_value_greater_than_percentage(
self): # noqa: E501
percentage = Percentage(value=0.5)
bucketer = ConsistentHashPercentageBucketer(percentage=percentage)
self.assertFalse(bucketer.check(foo="bar")) # score = 0.79