单元测试通过Django中模型的正则表达式验证器传递 [英] Unit Tests pass against regex validator of models in Django

问题描述

我为model.py中的几个字段定义了我的模型以及正则表达式验证器.在tests.py中，我编写了测试以验证那些验证器，但它们通过了它们.尽管当我尝试通过视图输入错误的值并且我的form.py中没有任何干净"功能时，验证程序会提高警惕

I have my models defined along with regex validators for a few fields in models.py. In tests.py, I have written tests to verify those validators but they pass against them. Although the validators are raising alert when I am trying to enter wrong values through views and I don't have any "clean" function in my forms.py for that form

型号:

class Organization(models.Model):
    name = models.CharField(
                    max_length=128,
                    unique=True,
                    validators=[
                            RegexValidator(
                                    r'^[(A-Z)|(a-z)|(\s)]+$',
                            )   
                    ]   
            )   
    def __unicode__(self):
            return self.name

测试:

class TestOrganization(TestCase):
    def setUp(self):
            Organization.objects.create(
                    name='XYZ123',
                    location='ABC'
            )   

    def test_insertion(self):
            self.assertEqual(1,len(Organization.objects.filter(name='XYZ123')))

此测试实际上针对验证者规则创建了一个组织对象，并且test_insertion实际上通过了，事实并非如此，应该在setUp本身中引发异常.

This test actually creates an organization object against validators rule and test_insertion actually passes, which should not be the case and exception should be raised in setUp itself.

推荐答案

保存对象无效.您需要使用 Model.full_clean 方法.

Saving object does not validate. You need to do it manually using Model.full_clean method.

from django.core.exceptions import ValidationError

class TestOrganization(TestCase):
    def test_validation(self):
        org = Organization(name='XYZ123')
        with self.assertRaises(ValidationError):
            # `full_clean` will raise a ValidationError
            #   if any fields fail validation
            if org.full_clean():
                org.save()

        self.assertEqual(Organization.objects.filter(name='XYZ123').count(), 0)

请参见验证对象-模型实例参考|Django文档|Django

顺便说一句，您的模型没有 location 字段.我对模型实例创建部分做了相应的修改.

BTW, you model does not have location field. I slightly modified model instance creation part accordingly.

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