Fix interference with depends when not being used in a wireup context; …

…Fixes #14

test/integration/test_fastapi_integration.py

@@ -1,6 +1,6 @@
 import unittest
 
-from fastapi import FastAPI
+from fastapi import FastAPI, Depends
 from fastapi.testclient import TestClient
 from typing_extensions import Annotated
 
@@ -18,14 +18,19 @@ def setUp(self):
     def test_injects_service(self):
         self.container.register(RandomService)
 
+        def get_lucky_number() -> int:
+            return 42
+
         @self.app.get("/")
         @self.container.autowire
-        async def target(random_service: Annotated[RandomService, Wire()]):
-            return {"number": random_service.get_random()}
+        async def target(
+            random_service: Annotated[RandomService, Wire()], lucky_number: Annotated[int, Depends(get_lucky_number)]
+        ):
+            return {"number": random_service.get_random(), "lucky_number": lucky_number}
 
         response = self.client.get("/")
         self.assertEqual(response.status_code, 200)
-        self.assertEqual(response.json(), {"number": 4})
+        self.assertEqual(response.json(), {"number": 4, "lucky_number": 42})
 
     def test_raises_on_unknown_service(self):
         @self.app.get("/")

wireup/annotation/__init__.py

@@ -44,7 +44,7 @@ def wire(
     try:
         # Allow fastapi users to do .get() without any params
         # It is meant to be used as a default value in where Depends() is expected
-        return importlib.import_module("fastapi").Depends(lambda: None)
+        return importlib.import_module("fastapi").Depends(EmptyContainerInjectionRequest)
     except ModuleNotFoundError:
         return EmptyContainerInjectionRequest()
 

wireup/ioc/util.py

@@ -17,7 +17,10 @@ def map_to_injectable_type(metadata: Any) -> InjectableType | None:
         if isinstance(metadata, InjectableType):
             return metadata
 
-        if str(metadata.__class__) == "<class 'fastapi.params.Depends'>":
+        if (
+            str(metadata.__class__) == "<class 'fastapi.params.Depends'>"
+            and metadata.dependency == EmptyContainerInjectionRequest
+        ):
             return EmptyContainerInjectionRequest()
 
         return None