def test_ask_and_validate(self):
"""
DialogHelper.ask_and_validate() behaves properly
"""
dialog = DialogHelper()
helper_set = HelperSet([FormatterHelper()])
dialog.set_helper_set(helper_set)
question = 'What color was the white horse of Henry IV?'
error = 'This is not a color!'
def validator(color):
if color not in ['white', 'black']:
raise Exception(error)
return color
dialog.set_input_stream(self.get_input_stream('\nblack\n'))
self.assertEqual('white', dialog.ask_and_validate(self.get_output_stream(), question, validator, 2, 'white'))
self.assertEqual('black', dialog.ask_and_validate(self.get_output_stream(), question, validator, 2, 'white'))
dialog.set_input_stream(self.get_input_stream('green\nyellow\norange\n'))
self.assertRaises(Exception,
dialog.ask_and_validate,
self.get_output_stream(), question, validator, 2, 'white')
def test_select(self):
"""
DialogHelper.select() behaves properly
"""
dialog = DialogHelper()
helper_set = HelperSet([FormatterHelper()])
dialog.set_helper_set(helper_set)
heroes = ['Superman', 'Batman', 'Spiderman']
dialog.set_input_stream(self.get_input_stream('\n1\nSebastien\n1\nSebastien\nSebastien\n'))
self.assertEqual('2',
dialog.select(self.get_output_stream(),
'What is your favorite superhero?', heroes, '2'))
self.assertEqual('1',
dialog.select(self.get_output_stream(),
'What is your favorite superhero?', heroes))
output = self.get_output_stream()
self.assertEqual('1',
dialog.select(output,
'What is your favorite superhero?', heroes, None,
False, 'Input "%s" is not a superhero!'))
output.get_stream().seek(0)
self.assertTrue(re.match('.*Input "Sebastien" is not a superhero!.*',
output.get_stream().read()) is not None)
output = self.get_output_stream()
self.assertRaises(Exception, dialog.select, output, 'What is your favorite superhero?', heroes, None, 1)