python-dependency-injector/tests/unit/providers/traversal/test_provider_py3.py
2021-10-18 10:30:46 -04:00

61 lines
1.5 KiB
Python

"""Provider traversal tests."""
from dependency_injector import providers
def test_traversal_overriding():
provider1 = providers.Provider()
provider2 = providers.Provider()
provider3 = providers.Provider()
provider = providers.Provider()
provider.override(provider1)
provider.override(provider2)
provider.override(provider3)
all_providers = list(provider.traverse())
assert len(all_providers) == 3
assert provider1 in all_providers
assert provider2 in all_providers
assert provider3 in all_providers
def test_traversal_overriding_nested():
provider1 = providers.Provider()
provider2 = providers.Provider()
provider2.override(provider1)
provider3 = providers.Provider()
provider3.override(provider2)
provider = providers.Provider()
provider.override(provider3)
all_providers = list(provider.traverse())
assert len(all_providers) == 3
assert provider1 in all_providers
assert provider2 in all_providers
assert provider3 in all_providers
def test_traverse_types_filtering():
provider1 = providers.Resource(dict)
provider2 = providers.Resource(dict)
provider3 = providers.Provider()
provider = providers.Provider()
provider.override(provider1)
provider.override(provider2)
provider.override(provider3)
all_providers = list(provider.traverse(types=[providers.Resource]))
assert len(all_providers) == 2
assert provider1 in all_providers
assert provider2 in all_providers