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from lagom import Container, injectable
class Foo:
def __init__(self, name="Foo") -> None:
self._name = name
def greet(self) -> str:
return f"Hello {self._name}"
container = Container()
class Bar:
def __init__(self, not_injected: str, foo: Foo = injectable) -> None:
self.not_injected = not_injected
self.foo = foo
return self.foo.greet() + self.not_injected
class MethodBasedBar:
def greet(self, message: str, foo: Foo = injectable) -> str:
return foo.greet() + message
def test_partial_application_can_be_applied_to_class():
bar = container.partial(Bar)(not_injected="!")
assert bar.greet() == "Hello Foo!"
def test_passed_in_arguments_are_used_over_container_generated_ones_when_positional():
partial_bar = container.partial(Bar)
assert partial_bar("!", Foo(name="Local")).greet() == "Hello Local!"
def test_passed_in_arguments_are_used_over_container_generated_ones_when_named():
assert (
partial_bar(not_injected="!", foo=Foo(name="Local")).greet() == "Hello Local!"
)
def test_partial_application_can_be_applied_to_instance_method():
bar = MethodBasedBar()
partial = container.partial(bar.greet)
assert partial(", hello?") == "Hello Foo, hello?"
meadsteve /
lagom
