Mocking the Post Method on an Async HTTPX Post Request

A quick snippet for mocking HTTP requests with an the async httpx context manager.

async with httpx.AsyncClient() as client:
    signup_response = await client.post(
        f"https://{AUTH0_DOMAIN}/api/v2/users",
        data=signup_request_body,
        headers=signup_request_headers,
        timeout=30,
    )

Quick and simple post for getting at the method that you want to patch

@patch("httpx.AsyncClient"). # The client to patch
async def test_auth0_post_request_example(
    mock_httpx_client,
):
    mock_httpx_client.return_value.__aenter__.return_value.post.return_value = Response(
        201,
        json={
            "user_id": "fake_user_id",
            "username": "fake_user_name",
            "email": "fake_email",
        },
    )

1. mock_httpx_client (The patched uninitialised class of httpx.AsyncClient)
2. return_value (The class that is returned when initialised) this is the ()
3. aenter is the async with portion of the code.
4. return_value is the as client: portion
5. post (the post function)
6. return_value is the invoked return value from post so the () part of the function call.

Hopefully that makes sense!