new_contents: from .helpers import codetest
  
  
  class TestRepeat(object):
      """
      tests for the lua if then else and various comparisons
      """
  
      def test_simple_repeat(self):
          ret = codetest("""
                  x = 0
                  repeat
                      x = x + 1
                  until x == 10
                  return x
                  """)
          assert ret.returnvalue == 10
  
      def test_simple_repeat_false(self):
          ret = codetest("""
                  x = 99
                  repeat
                      x = x + 1
                  until x > 0
                  return x
                  """)
          assert ret.returnvalue == 100
  
      def test_nested_repeat(self):
          ret = codetest("""
                  i = 0
                  x = 0
                  repeat
                      i = i + 1
                      x = x + 1
                      j = 5
                      repeat
                          j = j - 1
                          x = x + 1
                      until j == 0
                  until i == 10
                  return x
                  """)
          assert ret.returnvalue == 60
  
subject: Add tests for Lua repeat until loop