def test_char_field(self):
# data type
c = CharField()
self.assertRaises(ValidationError, c.validate, 100)
self.assertEqual(c.validate("你好"), "你好")
self.assertEqual(c.validate("1234"), "1234")
# required
c = CharField(required=True)
self.assertRaises(ValidationError, c.validate, None)
c = CharField(required=False)
self.assertEqual(c.validate("1234567890"), "1234567890")
# min length
c = CharField(min_length=4)
self.assertRaises(ValidationError, c.validate, "123")
self.assertEqual(c.validate("1234"), "1234")
self.assertEqual(c.validate("1234"), "1234")
# max length
c = CharField(max_length=4)
self.assertRaises(ValidationError, c.validate, "11111")
self.assertEqual(c.validate("1234"), "1234")
self.assertEqual(c.validate("123"), "123")
self.assertEqual(c.validate(""), "")
# both max min
c = CharField(max_length=3, min_length=3)
self.assertRaises(ValidationError, c.validate, "11")
self.assertRaises(ValidationError, c.validate, "1111")
self.assertEqual(c.validate("123"), "123")
def test_charfield_not_valid(required, nullable, value, ex_mes):
field = CharField(required, nullable)
with pytest.raises(ValidationError) as e:
field.validate(value)
assert str(e.value) == ex_mes
def test_charfield_valid(required, nullable, value):
field = CharField(required, nullable)
assert not field.validate(value)