1
我在models.py
以下模型:的Django模型字段驗證沒有引發異常,因爲它應該
@python_2_unicode_compatible
class Session(ModelCommon): # ModelCommon is an abstract Model which extends from models.Model with the fields name(CharField) and enabled(BooleanField).
"""
Model Session with foreign key to Model Event.
"""
event = models.ForeignKey(verbose_name=_('Event'), to=Event, default=None, null=False, blank=False)
start_datetime = models.DateTimeField(verbose_name=_('Session Starts'), default=None, null=False, blank=False)
end_datetime = models.DateTimeField(verbose_name=_('Session Ends'), default=None, null=False, blank=False)
available = models.BooleanField(verbose_name=_('Available'), default=True, null=False, blank=False)
price = models.DecimalField(verbose_name=_('Price'), max_digits=10, decimal_places=2,
validators=[MinValueValidator(0.00)],
default=None, null=False, blank=False)
當我測試模型,它不應該被保存在數據庫中,如果price
爲負,則不會像應該那樣引發異常。
test_models.py
:
class SessionTestCase(TestCase):
"""
Case of tests for Model Session.
"""
def setUpTestData(cls):
"""
This method is used to declare dummy data that could be used by all tests.
"""
cls.test_event = Event(name='Test Event Name for Session', enabled=True)
cls.test_event.save()
def setUp(self):
"""
This method is used to run code before each test.
"""
self.session = Session(event=self.test_event, name='Session No1', enabled=True,
start_datetime=timezone.now() + timedelta(days=1),
end_datetime=timezone.now() + timedelta(days=3), price=0)
def test_session_price_cannot_be_negative(self):
"""
:return: Passed if Session object with negative price raises Exception.
"""
self.session.price = -20.0
self.assertRaises(Exception, lambda: self.session.save())
最後,當我跑我test_models.py
,我得到以下信息:
Failure
Traceback (most recent call last):
self.assertRaises(Exception, lambda: self.session.save())
AssertionError: Exception not raised
這工作,謝謝。我覆蓋了我的模型中的save()方法,所以它包含'full_clean()'。我希望可以做到這一點。 – joaofguerreiro
如果在save方法中調用'full_clean()',驗證有時會運行兩次。請參閱[這個問題](http://stackoverflow.com/questions/12945339/is-this-the-way-to-validate-django-model-fields/12945692#12945692)瞭解更多信息。 – Alasdair