defmodule MicrowavepropWeb.Api.FallbackControllerTest do
  use ExUnit.Case, async: true

  import Plug.Test

  alias Microwaveprop.Accounts.User
  alias MicrowavepropWeb.Api.FallbackController

  # Force the module to be (re-)loaded so cover-tracked module-load lines
  # are counted even when only routed tests would otherwise reach this code.
  setup_all do
    Code.ensure_loaded(FallbackController)
    :ok
  end

  defp build_conn do
    :get
    |> conn("/")
    |> Plug.Conn.put_private(:phoenix_endpoint, MicrowavepropWeb.Endpoint)
  end

  test "renders changeset errors as 422" do
    cs = User.registration_changeset(%User{}, %{}, validate_unique: false)

    conn = FallbackController.call(build_conn(), {:error, cs})

    assert conn.status == 422
  end

  test "renders :not_found as 404" do
    conn = FallbackController.call(build_conn(), {:error, :not_found})
    assert conn.status == 404
  end

  test "renders :forbidden as 403" do
    conn = FallbackController.call(build_conn(), {:error, :forbidden})
    assert conn.status == 403
  end

  test "renders :unauthorized as 401" do
    conn = FallbackController.call(build_conn(), {:error, :unauthorized})
    assert conn.status == 401
  end

  test "renders :bad_request with detail as 400" do
    conn = FallbackController.call(build_conn(), {:error, :bad_request, "missing thing"})
    assert conn.status == 400
    assert %{"detail" => "missing thing"} = Jason.decode!(conn.resp_body)
  end

  test "renders :duplicate as 409" do
    conn = FallbackController.call(build_conn(), {:error, :duplicate, %{}})
    assert conn.status == 409
  end
end