defmodule LogsrvTest do
  use ExUnit.Case
  doctest Logsrv

  test "greets the world" do
    assert Logsrv.hello() == :world
  end
end

defmodule LogsrvTest.Router do
  # Bringing ExUnit's case module to scope and configure it to run
  # tests in this module concurrently with tests in other modules
  # https://hexdocs.pm/ex_unit/ExUnit.Case.html
  use ExUnit.Case, async: true

  # This makes the conn object avaiable in the scope of the tests,
  # which can be used to make the HTTP request
  # https://hexdocs.pm/plug/Plug.Test.html
  use Plug.Test

  # We call the Plug init/1 function with the options then store
  # returned options in a Module attribute opts.
  # Note: @ is module attribute unary operator
  # https://hexdocs.pm/elixir/main/Kernel.html#@/1
  # https://hexdocs.pm/plug/Plug.html#c:init/1
  @opts Logsrv.Router.init([])


  # Create a test with the name "return ok"
  test "return ok" do
  	# Build a connection which is GET request on / url
    conn = conn(:get, "/")

    # Then call Plug.call/2 with the connection and options
    # https://hexdocs.pm/plug/Plug.html#c:call/2
    conn = Logsrv.Router.call(conn, @opts)

    # Finally we are using the assert/2 function to check for the
    # correctness of the response
    # https://hexdocs.pm/ex_unit/ExUnit.Assertions.html#assert/2
    assert conn.state == :sent
    assert conn.status == 200
    assert conn.resp_body == "OK"
  end
end