def __init__(self,
logger=RealLogger(
os.path.join('..', '..', 'tmp',
'string_calculator.log'))):
self.logger = logger
self.logger.log('Hello')
self.instr = ''
self.answer = ''
self.button_convert_state = 'disabled'
self.strcalc = StrCalculator()
class StrCalculatorViewModel:
def __init__(self,
logger=RealLogger(
os.path.join('..', '..', 'tmp',
'string_calculator.log'))):
self.logger = logger
self.logger.log('Hello')
self.instr = ''
self.answer = ''
self.button_convert_state = 'disabled'
self.strcalc = StrCalculator()
def get_button_convert_state(self):
return self.button_convert_state
def set_btn_enabled(self):
self.logger.log('Button status: normal')
self.button_convert_state = 'normal'
def set_btn_disabled(self):
self.logger.log('Button status: disabled')
self.button_convert_state = 'disabled'
def validate_text(self):
parser = StrCalculatorParser()
try:
parser.parse(self.instr)
except:
self.logger.log('Invalid input')
self.set_btn_disabled()
else:
self.logger.log('Correct input')
self.set_btn_enabled()
def set_instr(self, instr):
self.logger.log('Set inst: {}'.format(instr))
self.instr = instr
self.validate_text()
def get_instr(self):
return self.instr
def set_answer(self, answer_str):
self.answer = self.strcalc.add(self.instr)
self.logger.log('Answer: {}'.format(self.answer))
def get_answer(self):
return self.answer
def click_button(self):
self.logger.log('Button clicked')
self.set_answer(self.instr)
class StrCalculatorViewModel:
def __init__(self):
self.instr = ''
self.answer = ''
self.strcalc = StrCalculator()
self.set_btn_disabled()
def get_button_convert_state(self):
return self.button_convert_state
def set_btn_enabled(self):
self.button_convert_state = 'normal'
def set_btn_disabled(self):
self.button_convert_state = 'disabled'
def validate_text(self):
parser = StrCalculatorParser()
try:
parser.parse(self.instr)
except:
self.set_btn_disabled()
else:
self.set_btn_enabled()
def set_instr(self, instr):
self.instr = instr
self.validate_text()
def get_instr(self):
return self.instr
def set_answer(self, answer_str):
self.answer = self.strcalc.add(self.instr)
def get_answer(self):
return self.answer
def click_button(self):
self.set_answer(self.instr)
def test_can_create_calculator(self):
strcalc = StrCalculator()
self.assertTrue(isinstance(strcalc, StrCalculator))
def test_check_negative_numbers_exception(self):
strcalc = StrCalculator()
msg = 'negatives not allowed: -1, -2'
with self.assertRaisesRegex(ValueError, msg):
strcalc.add("-1,-2")
def test_can_use_custom_delimiter_hard(self):
strcalc = StrCalculator()
result = strcalc.add(";\n1;2;3;4;5;6;7")
self.assertEqual(result, 28)
def test_can_use_custom_delimiter(self):
strcalc = StrCalculator()
result = strcalc.add(";\n1;2")
self.assertEqual(result, 3)
def test_can_use_newline_delimiter_mix(self):
strcalc = StrCalculator()
result = strcalc.add("1\n2,3,4\n5,6\n7")
self.assertEqual(result, 28)
def test_can_use_newline_delimiter(self):
strcalc = StrCalculator()
result = strcalc.add("1\n2,3")
self.assertEqual(result, 6)
def test_can_add_unknown_amount_strings(self):
strcalc = StrCalculator()
result = strcalc.add("2,3,1,0,5,6,0,1,2")
self.assertEqual(result, 20)
def test_add_strings_1_2(self):
strcalc = StrCalculator()
result = strcalc.add("1,2")
self.assertEqual(result, 3)
def test_add_string_1(self):
strcalc = StrCalculator()
result = strcalc.add("1")
self.assertEqual(result, 1)
def test_add_empty_string_is_0(self):
strcalc = StrCalculator()
result = strcalc.add("")
self.assertEqual(result, 0)
def __init__(self):
self.instr = ''
self.answer = ''
self.strcalc = StrCalculator()
self.set_btn_disabled()