ElixirでのPlugのテスト

defmodule MyPlugTest do
  use ExUnit.Case, async: true
  use Plug.Test

  @opts MyRouter.init([])

  test "returns index" do
    # Create a test connection
    conn = conn(:get, "/")

    # Invoke the plug
    conn = MyRouter.call(conn, @opts)

    # Assert the response and status
    assert conn.state == :sent
    assert conn.status == 200
    assert conn.resp_body == "index page"
  end

  test "returns hello world" do
    # Create a test connection
    conn = conn(:get, "/hello")

    # Invoke the plug
    conn = MyRouter.call(conn, @opts)

    # Assert the response and status
    assert conn.state == :sent
    assert conn.status == 200
    assert conn.resp_body == "world"
  end

  test "the truth" do
    assert 1 + 1 == 2
  end
end

$ mix test

Finished in 0.06 seconds (0.06s on load, 0.00s on tests)
3 tests, 0 failures