def get(self, key, provider):
if self.context is None:
raise UnsatisfiedRequirement(None, key)
try:
return self.context[key]
except KeyError:
provider = InstanceProvider(provider.get(self.injector))
self.context[key] = provider
return provider
def get(self, key, provider):
if self.context is None:
raise UnsatisfiedRequirement(None, key)
try:
return self.context[key]
except KeyError:
provider = InstanceProvider(provider.get(self.injector))
self.context[key] = provider
return provider
def test_binder_provider_for_method_with_class_to_specific_subclass():
class A:
pass
class B(A):
pass
injector = Injector()
binder = injector.binder
provider = binder.provider_for(A, B)
assert type(provider) is ClassProvider
assert isinstance(provider.get(injector), B)
def test_binder_provider_for_method_with_class_to_specific_subclass():
class A:
pass
class B(A):
pass
injector = Injector()
binder = injector.binder
provider = binder.provider_for(A, B)
assert type(provider) is ClassProvider
assert isinstance(provider.get(injector), B)
def test_providerof():
counter = [0]
def provide_str():
counter[0] += 1
return 'content'
def configure(binder):
binder.bind(str, to=provide_str)
injector = Injector(configure)
assert counter[0] == 0
provider = injector.get(ProviderOf[str])
assert counter[0] == 0
assert provider.get() == 'content'
assert counter[0] == 1
assert provider.get() == injector.get(str)
assert counter[0] == 3
def test_providerof():
counter = [0]
def provide_str():
counter[0] += 1
return 'content'
def configure(binder):
binder.bind(str, to=provide_str)
injector = Injector(configure)
assert counter[0] == 0
provider = injector.get(ProviderOf[str])
assert counter[0] == 0
assert provider.get() == 'content'
assert counter[0] == 1
assert provider.get() == injector.get(str)
assert counter[0] == 3
def test_binder_provider_for_method_with_class():
injector = Injector()
binder = injector.binder
provider = binder.provider_for(int)
assert type(provider) is ClassProvider
assert provider.get(injector) == 0
def test_binder_provider_for_method_with_instance():
injector = Injector()
binder = injector.binder
provider = binder.provider_for(int, to=1)
assert type(provider) is InstanceProvider
assert provider.get(injector) == 1
def test_binder_provider_for_method_with_explicit_provider():
injector = Injector()
binder = injector.binder
provider = binder.provider_for(int, to=InstanceProvider(1))
assert (type(provider) is InstanceProvider)
assert (provider.get(injector) == 1)
def test_binder_provider_for_method_with_class():
injector = Injector()
binder = injector.binder
provider = binder.provider_for(int)
assert type(provider) is ClassProvider
assert provider.get(injector) == 0
def test_binder_provider_for_method_with_instance():
injector = Injector()
binder = injector.binder
provider = binder.provider_for(int, to=1)
assert type(provider) is InstanceProvider
assert provider.get(injector) == 1
