text: from pathlib import Path
  from typing import Callable
  from _pytest.pytester import RunResult, Testdir
  import pytest
  import sys
  
  
  def test_cli_start_is_fast(testdir: Testdir):
      """
      Checks that a call to ``rasa --help`` does not import any slow imports.
  
      If this is failing this means, that a simple "rasa --help" commands imports
      `tensorflow` which makes our CLI extremely slow. In case this test is failing
      you've very likely added a global import of "tensorflow" which should be
      avoided. Consider making this import (or the import of its parent module)
      a local import.
  
      If you are clueless where that import happens, you can run
      ```
      python -X importtime -m rasa.__main__ --help  2> import.log
      tuna import.log
      ```
      to get the import chain.
      (make sure to run with python >= 3.7, and install tune (pip install tuna))
      """
  
      rasa_path = str(
          (Path(__file__).parent / ".." / ".." / "rasa" / "__main__.py").absolute()
      )
      args = [sys.executable, "-X", "importtime", rasa_path, "--help"]
      result = testdir.run(*args)
  
      assert result.ret == 0
  
      # tensorflow is slow -> can't get imported when running basic CLI commands
      result.stderr.no_fnmatch_line("*tensorflow.python.eager")
  
  
  def test_data_convert_help(run: Callable[..., RunResult]):
      output = run("--help")
  
      help_text = """usage: rasa [-h] [--version]
              {init,run,shell,train,interactive,telemetry,test,visualize,data,export,x}
              ..."""
  
      lines = help_text.split("\n")
      # expected help text lines should appear somewhere in the output
      printed_help = set(output.outlines)
      for line in lines:
          assert line in printed_help
  
  
  @pytest.mark.xfail(
      sys.platform == "win32", reason="--version doesn't print anything on Windows"
  )
  def test_version_print_lines(run: Callable[..., RunResult]):
      output = run("--version")
      output_text = "".join(output.outlines)
      assert "Rasa Version" in output_text
      assert "Python Version" in output_text
      assert "Operating System" in output_text
      assert "Python Path" in output_text
  