text: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  from runner.koan import *
  
  
  class AboutControlStatements(Koan):
  
      def test_if_then_else_statements(self):
          if True:
              result = 'true value'
          else:
              result = 'false value'
          self.assertEqual('true value', result)
  
      def test_if_then_statements(self):
          result = 'default value'
          if True:
              result = 'true value'
          self.assertEqual('true value', result)
  
      def test_while_statement(self):
          i = 1
          result = 1
          while i <= 10:
              result = result * i
              i += 1
          self.assertEqual(3628800, result)
  
      def test_break_statement(self):
          i = 1
          result = 1
          while True:
              if i > 10: break
              result = result * i
              i += 1
          self.assertEqual(3628800, result)
  
      def test_continue_statement(self):
          i = 0
          result = []
          while i < 10:
              i += 1
              if (i % 2) == 0: continue
              result.append(i)
          self.assertEqual([1,3,5,7,9], result)
  
      def test_for_statement(self):
          phrase = ["fish", "and", "chips"]
          result = []
          for item in phrase:
              result.append(item.upper())
          self.assertEqual(['FISH', 'AND', 'CHIPS'], result)
  
      def test_for_statement_with_tuples(self):
          round_table = [
              ("Lancelot", "Blue"),
              ("Galahad", "I don't know!"),
              ("Robin", "Blue! I mean Green!"),
              ("Arthur", "Is that an African Swallow or Amazonian Swallow?")
          ]
          result = []
          for knight, answer in round_table:
              result.append("Contestant: '" + knight + \
              "'   Answer: '" + answer + "'")
  
          text = "Contestant: 'Robin'   Answer: 'Blue! I mean Green!'"
  
          self.assertMatch(text, result[2])
  
          self.assertNoMatch(text, result[0])
          self.assertNoMatch(text, result[1])
          self.assertNoMatch(text, result[3])
  