old_contents: import os
  import subprocess
  import sys
  from pathlib import Path
  
  import typer
  from typer.testing import CliRunner
  
  from first_steps import tutorial001 as mod
  
  runner = CliRunner()
  app = typer.Typer()
  app.command()(mod.main)
  
  
  def test_show_completion():
      result = subprocess.run(
          [
              "bash",
              "-c",
              f"{sys.executable}  -m coverage run {mod.__file__} --show-completion",
          ],
          stdout=subprocess.PIPE,
          stderr=subprocess.PIPE,
          encoding="utf-8",
          env={**os.environ, "SHELL": "/bin/bash"},
      )
      assert "_TUTORIAL001.PY_COMPLETE=complete-bash" in result.stdout
  
  
  def test_install_completion():
      bash_completion_path: Path = Path.home() / ".bash_completion"
      text = ""
      if bash_completion_path.is_file():
          text = bash_completion_path.read_text()
      result = subprocess.run(
          [
              "bash",
              "-c",
              f"{sys.executable} -m coverage run {mod.__file__} --install-completion",
          ],
          stdout=subprocess.PIPE,
          stderr=subprocess.PIPE,
          encoding="utf-8",
          env={**os.environ, "SHELL": "/bin/bash"},
      )
      new_text = bash_completion_path.read_text()
      assert "_TUTORIAL001.PY_COMPLETE=complete-bash" in new_text
      bash_completion_path.write_text(text)
  
new_contents: import os
  import subprocess
  import sys
  from pathlib import Path
  
  import typer
  from typer.testing import CliRunner
  
  from first_steps import tutorial001 as mod
  
  runner = CliRunner()
  app = typer.Typer()
  app.command()(mod.main)
  
  
  def test_show_completion():
      result = subprocess.run(
          [
              "bash",
              "-c",
              f"{sys.executable}  -m coverage run {mod.__file__} --show-completion",
          ],
          stdout=subprocess.PIPE,
          stderr=subprocess.PIPE,
          encoding="utf-8",
          env={**os.environ, "SHELL": "/bin/bash"},
      )
      assert "_TUTORIAL001.PY_COMPLETE=complete-bash" in result.stdout
  
  
  def test_install_completion():
      bash_completion_path: Path = Path.home() / ".bash_completion"
      text = ""
      if bash_completion_path.is_file():
          text = bash_completion_path.read_text()
      result = subprocess.run(
          [
              "bash",
              "-c",
              f"{sys.executable} -m coverage run {mod.__file__} --install-completion",
          ],
          stdout=subprocess.PIPE,
          stderr=subprocess.PIPE,
          encoding="utf-8",
          env={**os.environ, "SHELL": "/bin/bash"},
      )
      new_text = bash_completion_path.read_text()
      bash_completion_path.write_text(text)
      assert "_TUTORIAL001.PY_COMPLETE=complete-bash" in new_text
      assert "completion installed in" in result.stdout
      assert "Completion will take effect once you restart the terminal." in result.stdout
  
subject: Update completion tests, checking for printed message