Sync fastapi docs from b5ca1324 on 2025-12-07

tests/test_dependency_class.py

@@ -0,0 +1,154 @@
+from typing import AsyncGenerator, Generator
+
+import pytest
+from fastapi import Depends, FastAPI
+from fastapi.testclient import TestClient
+
+app = FastAPI()
+
+
+class CallableDependency:
+    def __call__(self, value: str) -> str:
+        return value
+
+
+class CallableGenDependency:
+    def __call__(self, value: str) -> Generator[str, None, None]:
+        yield value
+
+
+class AsyncCallableDependency:
+    async def __call__(self, value: str) -> str:
+        return value
+
+
+class AsyncCallableGenDependency:
+    async def __call__(self, value: str) -> AsyncGenerator[str, None]:
+        yield value
+
+
+class MethodsDependency:
+    def synchronous(self, value: str) -> str:
+        return value
+
+    async def asynchronous(self, value: str) -> str:
+        return value
+
+    def synchronous_gen(self, value: str) -> Generator[str, None, None]:
+        yield value
+
+    async def asynchronous_gen(self, value: str) -> AsyncGenerator[str, None]:
+        yield value
+
+
+callable_dependency = CallableDependency()
+callable_gen_dependency = CallableGenDependency()
+async_callable_dependency = AsyncCallableDependency()
+async_callable_gen_dependency = AsyncCallableGenDependency()
+methods_dependency = MethodsDependency()
+
+
+@app.get("/callable-dependency-class")
+async def get_callable_dependency_class(
+    value: str, instance: CallableDependency = Depends()
+):
+    return instance(value)
+
+
+@app.get("/callable-gen-dependency-class")
+async def get_callable_gen_dependency_class(
+    value: str, instance: CallableGenDependency = Depends()
+):
+    return next(instance(value))
+
+
+@app.get("/async-callable-dependency-class")
+async def get_async_callable_dependency_class(
+    value: str, instance: AsyncCallableDependency = Depends()
+):
+    return await instance(value)
+
+
+@app.get("/async-callable-gen-dependency-class")
+async def get_async_callable_gen_dependency_class(
+    value: str, instance: AsyncCallableGenDependency = Depends()
+):
+    return await instance(value).__anext__()
+
+
+@app.get("/callable-dependency")
+async def get_callable_dependency(value: str = Depends(callable_dependency)):
+    return value
+
+
+@app.get("/callable-gen-dependency")
+async def get_callable_gen_dependency(value: str = Depends(callable_gen_dependency)):
+    return value
+
+
+@app.get("/async-callable-dependency")
+async def get_async_callable_dependency(
+    value: str = Depends(async_callable_dependency),
+):
+    return value
+
+
+@app.get("/async-callable-gen-dependency")
+async def get_async_callable_gen_dependency(
+    value: str = Depends(async_callable_gen_dependency),
+):
+    return value
+
+
+@app.get("/synchronous-method-dependency")
+async def get_synchronous_method_dependency(
+    value: str = Depends(methods_dependency.synchronous),
+):
+    return value
+
+
+@app.get("/synchronous-method-gen-dependency")
+async def get_synchronous_method_gen_dependency(
+    value: str = Depends(methods_dependency.synchronous_gen),
+):
+    return value
+
+
+@app.get("/asynchronous-method-dependency")
+async def get_asynchronous_method_dependency(
+    value: str = Depends(methods_dependency.asynchronous),
+):
+    return value
+
+
+@app.get("/asynchronous-method-gen-dependency")
+async def get_asynchronous_method_gen_dependency(
+    value: str = Depends(methods_dependency.asynchronous_gen),
+):
+    return value
+
+
+client = TestClient(app)
+
+
+@pytest.mark.parametrize(
+    "route,value",
+    [
+        ("/callable-dependency", "callable-dependency"),
+        ("/callable-gen-dependency", "callable-gen-dependency"),
+        ("/async-callable-dependency", "async-callable-dependency"),
+        ("/async-callable-gen-dependency", "async-callable-gen-dependency"),
+        ("/synchronous-method-dependency", "synchronous-method-dependency"),
+        ("/synchronous-method-gen-dependency", "synchronous-method-gen-dependency"),
+        ("/asynchronous-method-dependency", "asynchronous-method-dependency"),
+        ("/asynchronous-method-gen-dependency", "asynchronous-method-gen-dependency"),
+        ("/callable-dependency-class", "callable-dependency-class"),
+        ("/callable-gen-dependency-class", "callable-gen-dependency-class"),
+        ("/async-callable-dependency-class", "async-callable-dependency-class"),
+        ("/async-callable-gen-dependency-class", "async-callable-gen-dependency-class"),
+    ],
+)
+def test_class_dependency(route, value):
+    response = client.get(route, params={"value": value})
+    assert response.status_code == 200, response.text
+    assert response.json() == value