test_multiple_annotations() — fastapi Function Reference

Architecture documentation for the test_multiple_annotations() function in test_ambiguous_params.py from the fastapi codebase.

Function python FastAPI Applications calls 2

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FastAPI→ Applications→ test_multiple_annotations() — fastapi Function Reference

Dependency Diagram

graph TD
  855800fe_8ed6_9992_2502_3aee9f134f35["test_multiple_annotations()"]
  9588c53b_26fc_238d_e474_2a9ae27eef2d["test_ambiguous_params.py"]
  855800fe_8ed6_9992_2502_3aee9f134f35 -->|defined in| 9588c53b_26fc_238d_e474_2a9ae27eef2d
  8864e1f8_8173_ce5c_602b_445aa33f20f8["Query()"]
  855800fe_8ed6_9992_2502_3aee9f134f35 -->|calls| 8864e1f8_8173_ce5c_602b_445aa33f20f8
  333c1f6d_844c_a4d9_38c6_08988c9eeebf["Depends()"]
  855800fe_8ed6_9992_2502_3aee9f134f35 -->|calls| 333c1f6d_844c_a4d9_38c6_08988c9eeebf
  style 855800fe_8ed6_9992_2502_3aee9f134f35 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

tests/test_ambiguous_params.py lines 33–74

def test_multiple_annotations():
    async def dep():
        pass  # pragma: nocover

    @app.get("/multi-query")
    async def get(foo: Annotated[int, Query(gt=2), Query(lt=10)]):
        return foo

    with pytest.raises(
        AssertionError,
        match=(
            "Cannot specify `Depends` in `Annotated` and default value"
            " together for 'foo'"
        ),
    ):

        @app.get("/")
        async def get2(foo: Annotated[int, Depends(dep)] = Depends(dep)):
            pass  # pragma: nocover

    with pytest.raises(
        AssertionError,
        match=(
            "Cannot specify a FastAPI annotation in `Annotated` and `Depends` as a"
            " default value together for 'foo'"
        ),
    ):

        @app.get("/")
        async def get3(foo: Annotated[int, Query(min_length=1)] = Depends(dep)):
            pass  # pragma: nocover

    client = TestClient(app)
    response = client.get("/multi-query", params={"foo": "5"})
    assert response.status_code == 200
    assert response.json() == 5

    response = client.get("/multi-query", params={"foo": "123"})
    assert response.status_code == 422

    response = client.get("/multi-query", params={"foo": "1"})
    assert response.status_code == 422