def test_one_digit_number(self):
string_to_convert = "9"
converter = StringToIntConverter(string_to_convert)
converted_int = converter.convert()
self.assertEquals(converted_int, 9)
def test_None_converted_to_0(self):
string_to_convert = None
converter = StringToIntConverter(string_to_convert)
converted_int = converter.convert()
self.assertEquals(converted_int, 0)
def test_empty_string_converted_to_0(self):
string_to_convert = ""
converter = StringToIntConverter(string_to_convert)
converted_int = converter.convert()
self.assertEquals(converted_int, 0)
def test_number_that_ends_with_0(self):
string_to_convert = "110"
converter = StringToIntConverter(string_to_convert)
converted_int = converter.convert()
self.assertEquals(converted_int, 110)
def test_number_with_0_in_middle(self):
string_to_convert = "101"
converter = StringToIntConverter(string_to_convert)
converted_int = converter.convert()
self.assertEquals(converted_int, 101)
def test_10_digit_number(self):
string_to_convert = "1234567891"
converter = StringToIntConverter(string_to_convert)
converted_int = converter.convert()
self.assertEquals(converted_int, 1234567891)