mirror of
https://github.com/ets-labs/python-dependency-injector.git
synced 2024-11-30 13:33:59 +03:00
41 lines
1.1 KiB
Python
41 lines
1.1 KiB
Python
|
"""Provider's traversal tests."""
|
||
|
|
|
||
|
|
from dependency_injector import providers
|
||
|
|
|
||
|
|
|
||
|
|
def test_traverse_cycled_graph():
|
||
|
|
provider1 = providers.Provider()
|
||
|
|
|
||
|
|
provider2 = providers.Provider()
|
||
|
|
provider2.override(provider1)
|
||
|
|
|
||
|
|
provider3 = providers.Provider()
|
||
|
|
provider3.override(provider2)
|
||
|
|
|
||
|
|
provider1.override(provider3) # Cycle: provider3 -> provider2 -> provider1 -> provider3
|
||
|
|
|
||
|
|
all_providers = list(providers.traverse(provider1))
|
||
|
|
|
||
|
|
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(providers.traverse(provider, types=[providers.Resource]))
|
||
|
|
|
||
|
|
assert len(all_providers) == 2
|
||
|
|
assert provider1 in all_providers
|
||
|
|
assert provider2 in all_providers
|