def test_merge_list_of_property_loaders_merges_properties_from_multiple_loaders_as_expected(
self):
k1 = util.base36_str()
v1 = util.base36_str()
k2 = util.base36_str()
v2_a = util.base36_str()
v2_b = util.base36_str()
k3 = util.base36_str()
v3 = util.base36_str()
k4 = util.base36_str()
v4 = util.base36_str()
loaders = [
DictPropertyLoader("first", {
k1: v1,
k2: v2_a
}),
DictPropertyLoader("second", {
k2: v2_b,
k3: v3
}),
DictPropertyLoader("third", {k4: v4}),
]
ret = props.merge_list_of_property_loaders(loaders)
expected_ret = {
k1: v1,
k2: v2_a,
k3: v3,
k4: v4,
}
self.assertEqual(expected_ret, ret)
def test_DictPropertyLoader_get_all_returns_same_dict_as_supplied_in_ctor(
self):
d = {"k1": "v1", "k2": "v2"}
loader = DictPropertyLoader(util.base36_str(), d)
ret = loader.get_all()
self.assertEqual(d, ret)
def test_DictPropertyLoader_get_returns_property_from_dict(self):
k = util.base36_str()
v = util.base36_str()
loader = DictPropertyLoader(util.base36_str(), {k: v})
ret = loader.get(k)
self.assertEqual(v, ret)
def test_get_property_from_list_of_loaders_overwrites_properties(self):
k = util.base36_str()
v1 = util.base36_str()
v2 = util.base36_str()
loaders = [
DictPropertyLoader("first", {k: v1}),
DictPropertyLoader("second", {k: v2}),
]
ret = props.get_property_from_list_of_loaders(loaders, k)
self.assertEqual(ret, v1)
def test_get_property_from_list_of_loaders_returns_prop_from_multiple_loaders(
self):
k1 = util.base36_str()
v1 = util.base36_str()
k2 = util.base36_str()
v2 = util.base36_str()
loaders = [
DictPropertyLoader(util.base36_str(), {k1: v1}),
DictPropertyLoader(util.base36_str(), {k2: v2}),
]
ret = props.get_property_from_list_of_loaders(loaders, k2)
self.assertEqual(v2, ret)
def test_get_returns_property_from_loaders(self):
k = util.base36_str()
v = util.base36_str()
loaders = [DictPropertyLoader("some-loader", {k: v})]
props._set_loaders(loaders)
self.assertEqual(v, props.get(k))
def test_get_property_from_list_of_loaders_returns_prop_from_single_loader(
self):
k = util.base36_str()
v = util.base36_str()
loaders = [DictPropertyLoader(util.base36_str(), {k: v})]
ret = props.get_property_from_list_of_loaders(loaders, k)
self.assertEqual(v, ret)
def test__set_loaders_then_uses_loader_with_get_all_call(self):
k1 = util.base36_str()
v1 = util.base36_str()
k2 = util.base36_str()
v2 = util.base36_str()
loaders = [
DictPropertyLoader("some-loader", {k1: v1}),
DictPropertyLoader("some-other-loader", {k2: v2}),
]
props._set_loaders(loaders)
expected_value = {
k1: v1,
k2: v2,
}
actual_value = props.get_all()
self.assertEqual(expected_value, actual_value)
def test__set_loaders_then_uses_loader_with_get_call(self):
k = util.base36_str()
v = util.base36_str()
loaders = [DictPropertyLoader("some-loader", {k: v})]
props._set_loaders(loaders)
ret = props.get(k)
self.assertEqual(ret, v)
def test_get_all_dict_contains_expected_results(self):
k1 = util.base36_str()
v1 = util.base36_str()
v2 = util.base36_str()
k3 = util.base36_str()
v3 = util.base36_str()
loaders = [
DictPropertyLoader("first", {k1: v1}),
DictPropertyLoader("second", {k1: v2}),
DictPropertyLoader("third", {k3: v3}),
]
props._set_loaders(loaders)
expected_result = {
k1: v1,
k3: v3,
}
actual_result = props.get_all()
self.assertEqual(expected_result, actual_result)
def test__set_loaders_raises_ValueError_if_passed_list_containing_non_prop_loader(
self):
with self.assertRaises(ValueError):
props._set_loaders(
[DictPropertyLoader("some-loader", {}), "not-a-loader"])
def test_DictPropertyLoader_init_works_with_standard_args(self):
DictPropertyLoader(util.base36_str(), {})
def test__set_loaders_allows_setting_list_of_loaders(self):
loaders = [DictPropertyLoader("some-loader", {})]
props._set_loaders(loaders)
def test_DictPropertyLoader_get_name_returns_supplied_name(self):
name = util.base36_str()
loader = DictPropertyLoader(name, {})
self.assertEqual(name, loader.get_name())
def test_get_raises_KeyError_for_non_existent_property(self):
props._set_loaders([DictPropertyLoader("some-loader", {})])
with self.assertRaises(KeyError):
props.get(util.base36_str())
def test_DictPropertyLoader_get_raises_KeyError_if_property_does_not_exist(
self):
loader = DictPropertyLoader(util.base36_str(), {})
with self.assertRaises(KeyError):
loader.get(util.base36_str())
def test_DictPropertyLoader_try_get_returns_None_if_property_does_not_exist(
self):
loader = DictPropertyLoader(util.base36_str(), {})
self.assertIsNone(loader.try_get(util.base36_str()))