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import inject
from inject import InjectorException
from test import BaseTestInject
class TestInjectConfiguration(BaseTestInject):
def test_configure__should_create_injector(self):
injector0 = inject.configure()
injector1 = inject.get_injector()
assert injector0
assert injector0 is injector1
def test_configure__should_add_bindings(self):
injector = inject.configure(lambda binder: binder.bind(int, 123))
instance = injector.get_instance(int)
assert instance == 123
def test_configure__already_configured(self):
inject.configure()
self.assertRaisesRegex(InjectorException, 'Injector is already configured', inject.configure)
def test_configure_once__should_create_injector(self):
injector = inject.configure_once()
assert inject.get_injector() is injector
def test_configure_once__should_return_existing_injector_when_present(self):
injector0 = inject.configure()
injector1 = inject.configure_once()
assert injector0 is injector1
def test_is_configured__should_return_true_when_injector_present(self):
assert inject.is_configured() is False
inject.configure()
assert inject.is_configured() is True
inject.clear()
assert inject.is_configured() is False
def test_clear_and_configure(self):
injector0 = inject.configure()
injector1 = inject.clear_and_configure() # No exception.
assert injector0
assert injector1
assert injector1 is not injector0
def test_get_injector_or_die(self):
self.assertRaisesRegex(InjectorException, 'No injector is configured', inject.get_injector_or_die)
def test_configure__runtime_binding_disabled(self):
injector = inject.configure(bind_in_runtime=False)
self.assertRaisesRegex(InjectorException, "No binding was found for key=<.* 'int'>", injector.get_instance, int)
def test_configure__install_allow_override(self):
def base_config(binder):
binder.bind(int, 123)
def config(binder):
binder.install(base_config)
binder.bind(int, 456)
injector = inject.configure(config, allow_override=True)
assert injector.get_instance(int) == 456
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