def test_providerof_is_safe_to_use_with_multiple_injectors():
def configure1(binder):
binder.bind(int, to=1)
def configure2(binder):
binder.bind(int, to=2)
injector1 = Injector(configure1)
injector2 = Injector(configure2)
provider_of = ProviderOf(int)
provider1 = injector1.get(provider_of)
provider2 = injector2.get(provider_of)
assert provider1.get() == 1
assert provider2.get() == 2
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_special_interfaces_work_with_auto_bind_disabled():
class InjectMe(object):
pass
def configure(binder):
binder.bind(InjectMe, to=InstanceProvider(InjectMe()))
injector = Injector(configure, auto_bind=False)
# This line used to fail with:
# Traceback (most recent call last):
# File "/projects/injector/injector_test.py", line 1171,
# in test_auto_bind_disabled_regressions
# injector.get(ProviderOf(InjectMe))
# File "/projects/injector/injector.py", line 687, in get
# binding = self.binder.get_binding(None, key)
# File "/projects/injector/injector.py", line 459, in get_binding
# raise UnsatisfiedRequirement(cls, key)
# UnsatisfiedRequirement: unsatisfied requirement on
# <injector.ProviderOf object at 0x10ff01550>
injector.get(ProviderOf(InjectMe))
# This used to fail with an error similar to the ProviderOf one
injector.get(AssistedBuilder(cls=InjectMe))
def configure(binder):
binder.bind(ProviderOf(int), to=InstanceProvider(None))