Add tests for merging constructor args and auto-injected dependencies.

Author: runemalm

tests/unit_test/container/resolve/test_resolve_with_args.py

@@ -114,3 +114,39 @@ def __init__(self, color: str, make):
 
  # act + assert (no exception)
  dependency_container.resolve(dependency)
+
+ def test_resolve_merges_registered_constructor_args_with_auto_injected_dependencies(
+ self,
+ ):
+ # arrange
+ class Engine:
+ pass
+
+ class Vehicle:
+ pass
+
+ class Car(Vehicle):
+ def __init__(self, color: str, engine: Engine):
+ self.color = color
+ self.engine = engine
+
+ class CarFactory:
+ @classmethod
+ def create(cls, color: str, engine: Engine) -> Car:
+ return Car(color=color, engine=engine)
+
+ dependency_container = DependencyContainer.get_instance()
+ dependency_container.register_transient(Engine)
+ dependency_container.register_transient(
+ Vehicle,
+ Car,
+ constructor_args={"color": "red"},
+ )
+
+ # act
+ resolved_dependency = dependency_container.resolve(Vehicle)
+
+ # assert
+ self.assertIsInstance(resolved_dependency, Car)
+ self.assertEqual("red", resolved_dependency.color)
+ self.assertIsInstance(resolved_dependency.engine, Engine)

tests/unit_test/container/resolve/test_resolve_with_injection.py

@@ -0,0 +1,27 @@
+from dependency_injection.container import DependencyContainer
+from unit_test.unit_test_case import UnitTestCase
+
+
+class TestResolveWithInjection(UnitTestCase):
+ def test_resolve_injects_dependencies_in_constructor(
+ self,
+ ):
+ # arrange
+ class Engine:
+ pass
+
+ class Car:
+ def __init__(self, engine: Engine):
+ self.engine = engine
+
+ dependency_container = DependencyContainer.get_instance()
+ dependency_container.register_transient(Engine)
+ dependency_container.register_transient(Car)
+
+ # act
+ resolved_dependency = dependency_container.resolve(Car)
+
+ # assert
+ self.assertIsInstance(resolved_dependency, Car)
+ self.assertIsNotNone(resolved_dependency.engine)
+ self.assertIsInstance(resolved_dependency.engine, Engine)