def test_callback_form_with_no_name_and_phone(self):
     form = CallbackForm({})
     self.assertFalse(form.is_valid())
     self.assertEqual(
         form.errors, {
             'name': ['Это поле обязательно.'],
             'phone': ['Это поле обязательно.'],
         })
 def test_callback_form_with_name_and_phone(self):
     form = CallbackForm({
         'name': "Leela",
         'phone': "+380123456789",
     })
     self.assertTrue(form.is_valid())
 def test_cart_form_with_normal_quantity(self):
     form = CallbackForm({
         'quantity': "1",
     })
     self.assertFalse(form.is_valid())
 def test_cart_form_with_excess_of_quantity(self):
     form = CallbackForm({
         'quantity': "21",
     })
     self.assertFalse(form.is_valid())