def test_invalid_data_case1(self):
"""
In this scenario an invalid amount string is provided. clean_amount()
method can't evaluate the expression and is_valid() method returns False
"""
form = ExchangeForm({
'amount': '3+500*',
'sell_ccy': 1,
'buy_ccy': 2,
})
self.assertFalse(form.is_valid())
def test_valid_data_case1(self):
"""
In this scenario, a valid form is created and is_valid() method
should return true
"""
form = ExchangeForm({
'amount': '3+500/2',
'sell_ccy': 1,
'buy_ccy': 2,
})
self.assertTrue(form.is_valid())
def test_invalid_data_case2(self):
"""
This is another fail scenario, where sell_ccy and buy_ccy are the same currency.
In this case, clean() method checks that they are the same and will return an error.
:return:
"""
form = ExchangeForm({
'amount': '3+500/2',
'sell_ccy': 1,
'buy_ccy': 1,
})
self.assertFalse(form.is_valid())
