Dependency provider fails to provide default falsy value

[approxit]

I found that providers.Dependency is not recognizing falsy default value as any provided value, which failbacks to raising errors due to missing dependency definition.

Simplest test case that works without errors:

default = {'foo': 'bar'}
provider = providers.Dependency(instance_of=dict, default=default)
self.assertEqual(provider(), default)

But on falsy default value it complaints about no dependency defined:

default = {}
provider = providers.Dependency(instance_of=dict, default=default)
self.assertEqual(provider(), default)  # Raises dependency_injector.errors.Error: Dependency is not defined

I'm expecting that any provided default value will be accepted and used when no explicit value is passed to providers.Dependency. I'm using dependency_injector version of 4.37.0.

[rmk135]

Hey @approxit ,

Thanks for reporting the issue. It looks like a bug, and I agree that the second example should not raise an exception. I'll get it fixed

[rmk135]

Fixed in dev version

[rmk135]

Fixed in version 4.38.0