code: def test_port_env_fail_str(empty_environ):
      app = Dash()
      with pytest.raises(Exception) as excinfo:
          app.run(port="garbage")
      assert (
          excinfo.exconly()
          == "ValueError: Expecting an integer from 1 to 65535, found port='garbage'"
      )
  
imports: import os
  import logging
  import pytest
  from flask import Flask
  from dash import Dash, exceptions
  from dash._configs import pathname_configs, DASH_ENV_VARS, get_combined_config, load_dash_env_vars
  from dash._utils import AttributeDict
  from dash._get_paths import app_get_asset_url, app_get_relative_path, app_strip_relative_path, get_asset_url, get_relative_path, strip_relative_path
label_desc: Use image node_id 19 for calling a global function with example usage: test_port_env_fail_str(empty_environ) without return types