无法运行测试模型用例

Question

下面是一个报错信息

Error
Traceback (most recent call last):
  File "/home/sliver_horn/my_bolg/my_bolg/qa/tests/test_models.py", line 19, in setUp
    tags="测试标签1, 测试标签2"
  File "/home/sliver_horn/my_bolg/venv/lib/python3.7/site-packages/django/db/models/manager.py", line 82, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "/home/sliver_horn/my_bolg/venv/lib/python3.7/site-packages/django/db/models/query.py", line 413, in create
    obj.save(force_insert=True, using=self.db)
  File "/home/sliver_horn/my_bolg/my_bolg/qa/models.py", line 109, in save
    super(Question, self).save(*args, *kwargs)
  File "/home/sliver_horn/my_bolg/venv/lib/python3.7/site-packages/django/db/models/base.py", line 679, in save
    raise ValueError("Cannot force both insert and updating in model saving.")
ValueError: Cannot force both insert and updating in model saving.

Answer 1

Jack 2019-09-21 16:13:19

用例全跑不了应该是哪里写错了，tags="标签1, 标签2"是英文逗号隔开

你可以对照一下我的

#!/usr/bin/python3
# -*- coding:utf-8 -*-
# __author__ = '__Jack__'

import json
from django.test import RequestFactory
from test_plus.test import CBVTestCase
from django.contrib.messages.storage.fallback import FallbackStorage

from zanhu.qa.models import Question, Answer
from zanhu.qa import views


class BaseQATest(CBVTestCase):

   def setUp(self):
       self.user = self.make_user("user01")
       self.other_user = self.make_user("user02")
       self.question_one = Question.objects.create(
           user=self.user,
           title="问题1",
           content="问题1的内容",
           tags="测试1, 测试2"
       )
       self.question_two = Question.objects.create(
           user=self.user,
           title="问题2",
           content="问题2的内容",
           has_answer=True,
           tags="测试1, 测试2"
       )
       self.answer = Answer.objects.create(
           user=self.user,
           question=self.question_two,
           content="问题2被采纳的回答",
           is_answer=True
       )

       self.request = RequestFactory().get('/fake-url')
       self.request.user = self.user


class TestQuestionListView(BaseQATest):
   """测试问题列表"""

   def test_context_data(self):
       response = self.get(views.QuestionListView, request=self.request)

       self.assertEqual(response.status_code, 200)

       self.assertQuerysetEqual(response.context_data['questions'],
                                map(repr, [self.question_one, self.question_two]), ordered=False)

       self.assertTrue(all(a == b for a, b in zip(response.context_data['questions'], Question.objects.all())))

       self.assertContext('popular_tags', Question.objects.get_counted_tags())
       self.assertContext('active', 'all')


class TestAnsweredQuestionListView(BaseQATest):
   """测试已回答问题列表"""

   def test_context_data(self):
       response = self.get(views.AnsweredQuestionListView, request=self.request)  # 方式一
       # response = views.AnsweredQuestionListView.as_view()(self.request)  # 方式二

       self.assertEqual(response.status_code, 200)
       self.assertQuerysetEqual(response.context_data['questions'], [repr(self.question_two)])
       self.assertContext('active', 'answered')  # 对应方式一
       # self.assertEqual(response.context_data['active'], 'answered')  # 对应方式二


class TestUnansweredQuestionListView(BaseQATest):
   """测试未回答问题列表"""

   def test_context_data(self):
       response = self.get(views.UnansweredQuestionListView, request=self.request)  # 方式一
       self.assertEqual(response.status_code, 200)  # 或者 self.response_200(response)
       self.assertQuerysetEqual(response.context_data['questions'], [repr(self.question_one)])
       self.assertContext('active', 'unanswered')


class TestCreateQuestionView(BaseQATest):
   """测试创建问题"""

   def test_get(self):
       response = self.get(views.CreateQuestionView, request=self.request)
       self.response_200(response)

       self.assertContains(response, '标题')
       self.assertContains(response, '编辑')
       self.assertContains(response, '预览')
       self.assertContains(response, '标签')
       self.assertIsInstance(response.context_data['view'], views.CreateQuestionView)

   def test_post(self):
       data = {'title': 'title', 'content': 'content', 'tags': 'tag1,tag2', 'status': 'O'}
       request = RequestFactory().post('/fake-url', data=data)
       request.user = self.user
       # RequestFactory测试含有django.contrib.messages的视图 https://code.djangoproject.com/ticket/17971
       setattr(request, 'session', 'session')
       messages = FallbackStorage(request)
       setattr(request, '_messages', messages)

       response = self.post(views.CreateQuestionView, request=request)
       assert response.status_code == 302
       assert response.url == '/qa/'


class TestQuestionDetailView(BaseQATest):
   """测试问题详情"""

   def get_context_data(self):
       response = self.get(views.QuestionDetailView, request=self.request,
                           pk=self.question_one.id)
       self.response_200(response)
       self.assertEqual(response.context_data['question'], self.question_one)


class TestCreateAnswerView(BaseQATest):
   """测试创建回答"""

   def test_get(self):
       response = self.get(views.CreateAnswerView, request=self.request,
                           question_id=self.question_one.id)
       self.response_200(response)
       self.assertContains(response, '编辑')
       self.assertContains(response, '预览')
       self.assertIsInstance(response.context_data['view'], views.CreateAnswerView)

   def get_post(self):
       request = RequestFactory().post('/fake-url', data={'content': 'content'})
       request.user = self.user
       # RequestFactory测试含有django.contrib.messages的视图 https://code.djangoproject.com/ticket/17971
       setattr(request, 'session', 'session')
       messages = FallbackStorage(request)
       setattr(request, '_messages', messages)

       response = self.post(views.CreateAnswerView, request=request)
       assert response.status_code == 302
       assert response.url == f'/qa/question-detail/{self.question_one.id}'


class TestQAVote(BaseQATest):

   def setUp(self):
       super(TestQAVote, self).setUp()
       self.request = RequestFactory().post('/fake-url', HTTP_X_REQUESTED_WITH='XMLHttpRequest')
       # QueryDict instance is immutable, request.POST是QueryDict对象，不可变
       self.request.POST = self.request.POST.copy()

       self.request.user = self.other_user

   def test_question_upvote(self):
       """赞同问题"""
       self.request.POST['question'] = self.question_one.id
       self.request.POST['value'] = 'U'

       response = views.question_vote(self.request)

       assert response.status_code == 200
       assert json.loads(response.content)['votes'] == 1

   def test_question_downvote(self):
       """反对问题"""
       self.request.POST['question'] = self.question_two.id
       self.request.POST['value'] = 'D'

       response = views.question_vote(self.request)

       assert response.status_code == 200
       assert json.loads(response.content)['votes'] == -1

   def test_answer_upvote(self):
       """赞同问答"""
       self.request.POST['answer'] = self.answer.uuid_id
       self.request.POST['value'] = 'U'

       response = views.answer_vote(self.request)

       assert response.status_code == 200
       assert json.loads(response.content)['votes'] == 1

   def test_answer_downvote(self):
       """反对回答"""
       self.request.POST['answer'] = self.answer.uuid_id
       self.request.POST['value'] = 'D'

       response = views.answer_vote(self.request)

       assert response.status_code == 200
       assert json.loads(response.content)['votes'] == -1

   def test_accept_answer(self):
       """接受回答"""

       self.request.user = self.user  # self.user是提问者
       self.request.POST['answer'] = self.answer.uuid_id

       response = views.accept_answer(self.request)

       assert response.status_code == 200
       assert json.loads(response.content)['status'] == 'true'

• 提问者 Sliver_Horn #1

  中英文都试过了

• 提问者 Sliver_Horn #2

  好像是数据库的问题