defmodule BirdyChatWeb.Api.MessagesTest do
  use BirdyChatWeb.ConnCase

  setup %{conn: conn} do
    url = ~p"/api/messages"

    conn =
      conn
      |> put_req_header("content-type", "application/json")

    %{conn: conn, url: url}
  end

  describe "POST /api/messages" do
    test "returns errors for invalid message", %{conn: conn, url: url} do
      payload = Jason.encode!(%{})
      conn = post(conn, url, payload)
      assert result = json_response(conn, :unprocessable_entity)

      expected_result = %{
        "errors" => %{
          "from" => ["can't be blank"],
          "message" => ["can't be blank"],
          "to" => ["can't be blank"]
        }
      }

      assert result == expected_result
    end

    test "returns message and ok when successful", %{conn: conn, url: url} do
      message = %{"from" => "2-user", "to" => "1-user", "message" => "123"}
      payload = Jason.encode!(message)
      conn = post(conn, url, payload)
      assert result = json_response(conn, :created)

      assert result == message
    end
  end
end