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from abc import ABC
from typing import List
import pytest
from lagom import Construction, Container
class MySimpleDep:
stuff: str
def __init__(self, stuff):
self.stuff = stuff
class MyMoreComplicatedDep:
def __init__(self, dep: MySimpleDep):
self.stuff = dep.stuff
class AnotherAbc(ABC):
stuff: str = "empty"
class AnotherConcrete(AnotherAbc):
stuff = "full"
def test_deps_can_be_referenced_by_square_brackets(container: Container):
container[MySimpleDep] = Construction(lambda: MySimpleDep("hooray"))
resolved = container[MySimpleDep]
MySimpleDep
assert resolved.stuff == "hooray"
def test_construction_type_can_be_omitted(container: Container):
container[MySimpleDep] = lambda: MySimpleDep("hooray")
def test_singleton_type_can_be_omitted(container: Container):
container[MySimpleDep] = MySimpleDep("hooray")
one = container[MySimpleDep]
two = container[MySimpleDep]
assert one is not None
assert one is two
def test_alias_can_be_omitted(container: Container):
container[AnotherAbc] = AnotherConcrete
resolved = container[AnotherAbc]
AnotherAbc
assert type(resolved) == AnotherConcrete
assert resolved.stuff == "full"
meadsteve /
lagom
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