text: # -*- coding: utf-8
  """Tests for prompt generation."""
  
  import unittest
  
  from IPython.core.prompts import  LazyEvaluate
  from IPython.testing.globalipapp import get_ipython
  
  ip = get_ipython()
  
  
  class PromptTests(unittest.TestCase):
      def test_lazy_eval_unicode(self):
          u = u'ünicødé'
          lz = LazyEvaluate(lambda : u)
          self.assertEqual(str(lz), u)
          self.assertEqual(format(lz), u)
      
      def test_lazy_eval_nonascii_bytes(self):
          u = u'ünicødé'
          b = u.encode('utf8')
          lz = LazyEvaluate(lambda : b)
          # unicode(lz) would fail
          self.assertEqual(str(lz), str(b))
          self.assertEqual(format(lz), str(b))
      
      def test_lazy_eval_float(self):
          f = 0.503
          lz = LazyEvaluate(lambda : f)
          
          self.assertEqual(str(lz), str(f))
          self.assertEqual(format(lz), str(f))
          self.assertEqual(format(lz, '.1'), '0.5')
  
  