def __init__(self, number_str):
try:
number = int(number_str)
if number < 0:
raise ValueError('Input error: wrong format')
self.__number_str = number_str
self.lcd_numbers = [LcdSymbol(symbol) for symbol in number_str]
except ValueError:
raise ValueError('Input error: wrong format')
def test_can_create(self):
lcd_symbol_instance = LcdSymbol('0')
self.assertTrue(isinstance(lcd_symbol_instance, LcdSymbol))
def test_not_equal(self):
lcd_symbol_instance = LcdSymbol('3')
other_instance = LcdSymbol('4')
self.assertFalse(lcd_symbol_instance.equals(other_instance))
def test_equal(self):
lcd_symbol_instance = LcdSymbol('2')
other_instance = LcdSymbol('2')
self.assertTrue(lcd_symbol_instance.equals(other_instance))
def test_equal_wrong_type_error(self):
lcd_symbol_instance = LcdSymbol('0')
other_instance = 't'
with self.assertRaises(TypeError):
lcd_symbol_instance.equals(other_instance)
def test_cant_create_with_invalid_character_neg(self):
with self.assertRaises(ValueError):
LcdSymbol('-1')
def test_cant_create_from_empty_str(self):
with self.assertRaises(ValueError):
LcdSymbol('')