rate_limiter_test.exs

  # ...code omitted
  import ExUnit.CaptureLog

  # ...code omitted
  test "allow_login_attempt?/2 returns false with a warning log when over the login attempt limit" do
    assert RateLimiter.allow_login_attempt?(@test_email, @limit) == true
    assert RateLimiter.allow_login_attempt?(@test_email, @limit) == true

    log = capture_log(fn ->
      assert RateLimiter.allow_login_attempt?(@test_email, @limit) == false
    end)

    assert log =~ "Login attempt limit exceeded for email: #{@test_email}"
  end