Filter responses from Response.all_4xx and Response.all_5xx lists

[bernardolins]

Sometimes you want to ensure that your client can handle all kinds of 4xx or 5xx responses, but you will handle some of these responses in a special way.

For example, suppose you are requesting an external service for a user by email. You want to return a specific message when the user is not found (when the server replies 404) but for any other 4xx status code, you just want return a default error message. This filter will help to test such cases:

  test_with_server "return {:error, :user_not_found} when the external service replies 404" do
    route("/users", Response.not_found)
    assert {:error, :not_found} == User.find_by_email("john@example.com")
  end

  test_with_server "return {:error, :invalid_response} when the external service replies any other 4xx" do
    responses = Response.all_4xx(except: [404])

    route("/users", responses)
    for _ <- responses do
      assert {:error, :invalid_response} == User.find_by_email("john@example.com")
    end
  end

[fcapovilla]

I'll try to work on this issue.

[bernardolins]

#45 closes this issue.