text: from goath2 import __version__, package_version
  
  current_version = "0.1.0"
  
  
  def test_package_version() -> None:
      """Test package version calculation."""
      assert package_version() == current_version
  
  
  def test_package_version_not_found() -> None:
      """Test package version calculation when package is not installed."""
      assert package_version(package="incorrect") == "Package not found."
  
  
  def test_version() -> None:
      """Test package version number."""
      assert __version__ == current_version
  