text: import pytest
  import contractions
  
  
  def test_fix():
      assert contractions.fix("you're happy now") == "you are happy now"
  
  
  def test_add():
      contractions.add('mychange', 'my change')
      assert contractions.fix('mychange') == 'my change'
  
  
  def test_ill():
      txt = 'He is to step down at the end of the week due to ill health'
      assert contractions.fix(txt) == txt
      assert contractions.fix("I'll") == "I will"
  