text: """Handle user-specified and default parameters."""
  
  # -----------------------------------------------------------------------------
  # Imports
  # -----------------------------------------------------------------------------
  from kwiklib import (python_to_pydict, pydict_to_python, 
      load_default_params, get_params)
  
  def test_python_to_params():
      python = """
      MYVAR1 = 'myvalue1'
      MYVAR2 = .123
      MYVAR3 = ['myvalue3', .456]
      """.replace('    ', '').strip()
      
      params = python_to_pydict(python)
      assert params['myvar1'] == 'myvalue1'
      assert params['myvar2'] == .123
      assert params['myvar3'] == ['myvalue3', .456]
      
  def test_get_params():
      assert get_params(sample_rate=1).get('filter_butter_order', None) == 3
      assert get_params(sample_rate=1, filter_butter_order=1)['filter_butter_order'] == 1
      
  def test_params_to_python():
      params = dict(
          MYVAR1 = 'myvalue1',
          MYVAR2 = .123,
          MYVAR3 = ['myvalue3', .456],
          SAMPLE_RATE = 1)
      
      python = pydict_to_python(params)
      assert python == """
      MYVAR1 = 'myvalue1'
      MYVAR2 = 0.123
      MYVAR3 = ['myvalue3', 0.456]
      SAMPLE_RATE = 1
      """.replace('    ', '').strip()
      
  def test_default_params():
      params_default = load_default_params(dict(sample_rate=1))
      assert params_default['filter_butter_order'] == 3
      
  
  