[axum] How to use oneshot() with multipart forms?

help
1

I use oneshot() for testing all the time. Now I want to test an endpoint that accepts multipart form data. I cannot find an idiomatic way to create a test Request with a multipart form body. The best I have come up with is below. It works, but is clunky.

reqwest has a Form type, which is great for creating real requests on the client side, but Form does not impl the http_body::Body trait, so it can't be used to create the body of an axum::http::Request (unless I'm missing something). Form also (understandably) doesn't provide easy access to its contents, so I can't impl http_body::Body on it myself.

    let request = axum::http::Request::builder()
        .method("POST")
        .uri("/my_endpoint")
        .header(
            axum::http::header::CONTENT_TYPE,
            "multipart/form-data; boundary=boundary",
        )
        .body(
            r#"--boundary
            Content-Disposition:form-data;name="file1";filename="file1.jpg"
            Content-Type:image/jpeg

            <TEST IMAGE FILE CONTENTS>
            --boundary
            Content-Disposition:form-data;name="file2";filename="file2.jpg"
            Content-Type:image/jpeg

            <MORE TEST IMAGE FILE CONTENTS>
            --boundary--
        "#
            .replace('\n', "\r\n")
            .replace(' ', ""),
        )
        .unwrap();
    let res = my_routes().oneshot(request).await.unwrap();
2

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