Django 2测试:无法获取创建的对象进行测试 [英] Django 2 Test: Created object cannot be gotten for tests

问题描述

我已经读过有关从测试开始构建程序的知识，所以我想尝试一下.我已经完成了初始的 project 和 app 和 model ，但是当我尝试运行测试时，出现了不存在""错误.我已经运行了迁移，在可以运行测试之前，还有更多要做的事情吗?这是我的代码:

I've read about building programs starting with tests, so I thought I'd give it a shot. I've made my initial project and app and a model, but when I try to run a test, I get a "Does not exist" error. I've run the migrations, is there more I have to do before I can run a test? Here's my code:

models.py

models.py

from django.db import models

class Name(models.Model):
    first_name = models.CharField(
        "First Name",
        max_length=100,
        )
    middle_name = models.CharField(
        "Middle Name or Initial",
        max_length=100,
        default='',
        )
    last_name = models.CharField(
        "Last Name",
        max_length=200,
        )


    def __str__(self):
        return f'{self.last_name}, {self.first_name}'

tests.py

from django.test import TestCase

from contacts.models import Name


class TestNameModel(TestCase):
    @classmethod
    def setupTestData(cls):
        Name.objects.create(first_name='Banny', last_name='Banvil')

    def test_name_exists(self):
        name = Name.objects.get(id=1)
        print (name)

还有我得到的错误:

Creating test database for alias 'default'...
System check identified no issues (0 silenced).
E
======================================================================
ERROR: test_name_exists (contacts.tests.TestNameModel)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/Users/CrazyCarl/Software/contact/contacts/tests.py", line 12, in test_name_exists
    name = Name.objects.get(id=1)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/models/manager.py", line 82, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/models/query.py", line 403, in get
    self.model._meta.object_name
contacts.models.DoesNotExist: Name matching query does not exist.

----------------------------------------------------------------------
Ran 1 test in 0.002s

FAILED (errors=1)
Destroying test database for alias 'default'...

我尝试在终端中制作一个对象，以查看其是否正常工作:

I tried making an object in the terminal to see if it was working:

>>>from contacts.models import Name
>>>Name.objects.create(last_name='John', first_name='Smith')
<Name: John, Smith>
>>>Name.objects.all()
<QuerySet [<Name: John, Smith>]>
>>>n = Name.objects.get(id=1)
>>>print (n)
John, Smith

我想念什么?

推荐答案

它是 setUpTestData 而不是 setupTestData

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