Python Django:测试抽象模型
我有一个简单的抽象类,我想为此编写一个单元测试。 我使用的是Django 1.10,大多数已经存在多年了,可能已经过时了。 我尝试了以下解决方案: 有没有什么简单的现代方法来测试一个与Django 1.10一起工作的抽象模型,比如Vinod Kurup的抽象模型 编辑: 我的抽象模型的代码:Python Django:测试抽象模型,python,django,unit-testing,django-models,abstract-class,Python,Django,Unit Testing,Django Models,Abstract Class,我有一个简单的抽象类,我想为此编写一个单元测试。 我使用的是Django 1.10,大多数已经存在多年了,可能已经过时了。 我尝试了以下解决方案: 有没有什么简单的现代方法来测试一个与Django 1.10一起工作的抽象模型,比如Vinod Kurup的抽象模型 编辑: 我的抽象模型的代码: class FlagsModel(models.Model): created = models.DateTimeField(auto_now_add=True) modified = m
class FlagsModel(models.Model):
created = models.DateTimeField(auto_now_add=True)
modified = models.DateTimeField(auto_now=True)
reported = models.BooleanField(default=False)
deleted = models.BooleanField(default=False)
class Meta:
abstract = True
这是我的测试文件:
from ..models import RecipeModel, FlagsModel
class FlagsTestModel(FlagsModel):
class Meta:
app_label = 'recipes'
class FlagsModelAbstractTest(TestCase):
def test_my_test_model(self):
self.assertTrue(FlagsTestModel.objects.create())
我得到的错误是:
Traceback (most recent call last):
File "/home/arch/.environments/djanveg_dev/lib/python3.5/site-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
psycopg2.ProgrammingError: relation "recipes_flagstestmodel" does not exist
LINE 1: ...eported", "recipes_flagstestmodel"."deleted" FROM "recipes_f...
^
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "manage.py", line 22, in <module>
execute_from_command_line(sys.argv)
File "/home/arch/.environments/djanveg_dev/lib/python3.5/site-packages/django/core/management/__init__.py", line 367, in execute_from_command_line
utility.execute()
File "/home/arch/.environments/djanveg_dev/lib/python3.5/site-packages/django/core/management/__init__.py", line 359, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/arch/.environments/djanveg_dev/lib/python3.5/site-packages/django/core/management/commands/test.py", line 29, in run_from_argv
super(Command, self).run_from_argv(argv)
File "/home/arch/.environments/djanveg_dev/lib/python3.5/site-packages/django/core/management/base.py", line 305, in run_from_argv
self.execute(*args, **cmd_options)
File "/home/arch/.environments/djanveg_dev/lib/python3.5/site-packages/django/core/management/base.py", line 356, in execute
output = self.handle(*args, **options)
File "/home/arch/.environments/djanveg_dev/lib/python3.5/site-packages/django/core/management/commands/test.py", line 72, in handle
failures = test_runner.run_tests(test_labels)
File "/home/arch/.environments/djanveg_dev/lib/python3.5/site-packages/django/test/runner.py", line 549, in run_tests
old_config = self.setup_databases()
File "/home/arch/.environments/djanveg_dev/lib/python3.5/site-packages/django/test/runner.py", line 499, in setup_databases
self.parallel, **kwargs
File "/home/arch/.environments/djanveg_dev/lib/python3.5/site-packages/django/test/runner.py", line 743, in setup_databases
serialize=connection.settings_dict.get("TEST", {}).get("SERIALIZE", True),
File "/home/arch/.environments/djanveg_dev/lib/python3.5/site-packages/django/db/backends/base/creation.py", line 78, in create_test_db
self.connection._test_serialized_contents = self.serialize_db_to_string()
File "/home/arch/.environments/djanveg_dev/lib/python3.5/site-packages/django/db/backends/base/creation.py", line 122, in serialize_db_to_string
serializers.serialize("json", get_objects(), indent=None, stream=out)
File "/home/arch/.environments/djanveg_dev/lib/python3.5/site-packages/django/core/serializers/__init__.py", line 129, in serialize
s.serialize(queryset, **options)
File "/home/arch/.environments/djanveg_dev/lib/python3.5/site-packages/django/core/serializers/base.py", line 79, in serialize
for count, obj in enumerate(queryset, start=1):
File "/home/arch/.environments/djanveg_dev/lib/python3.5/site-packages/django/db/backends/base/creation.py", line 118, in get_objects
for obj in queryset.iterator():
File "/home/arch/.environments/djanveg_dev/lib/python3.5/site-packages/django/db/models/query.py", line 54, in __iter__
results = compiler.execute_sql()
File "/home/arch/.environments/djanveg_dev/lib/python3.5/site-packages/django/db/models/sql/compiler.py", line 835, in execute_sql
cursor.execute(sql, params)
File "/home/arch/.environments/djanveg_dev/lib/python3.5/site-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
File "/home/arch/.environments/djanveg_dev/lib/python3.5/site-packages/django/db/utils.py", line 94, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/home/arch/.environments/djanveg_dev/lib/python3.5/site-packages/django/utils/six.py", line 685, in reraise
raise value.with_traceback(tb)
File "/home/arch/.environments/djanveg_dev/lib/python3.5/site-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
django.db.utils.ProgrammingError: relation "recipes_flagstestmodel" does not exist
LINE 1: ...eported", "recipes_flagstestmodel"."deleted" FROM "recipes_f...
回溯(最近一次呼叫最后一次):
文件“/home/arch/.environments/djanveg_dev/lib/python3.5/site packages/django/db/backends/utils.py”,第64行,在execute中
返回self.cursor.execute(sql,params)
psycopg2.ProgrammingError:关系“recipes\u flagstestmodel”不存在
第1行:…从“配方”中“删除”了“配方”。。。
^
上述异常是以下异常的直接原因:
回溯(最近一次呼叫最后一次):
文件“manage.py”,第22行,在
从命令行(sys.argv)执行命令
文件“/home/arch/.environments/djanveg_dev/lib/python3.5/site packages/django/core/management/_init__.py”,第367行,从命令行执行
utility.execute()
文件“/home/arch/.environments/djanveg_dev/lib/python3.5/site packages/django/core/management/_init__.py”,执行中第359行
self.fetch_命令(子命令)。从_argv(self.argv)运行_
文件“/home/arch/.environments/djanveg_-dev/lib/python3.5/site-packages/django/core/management/commands/test.py”,第29行,从_-argv运行
超级(命令,自我)。从_argv(argv)运行_
文件“/home/arch/.environments/djanveg_-dev/lib/python3.5/site-packages/django/core/management/base.py”,第305行,运行时来自
self.execute(*args,**cmd_选项)
文件“/home/arch/.environments/djanveg_dev/lib/python3.5/site packages/django/core/management/base.py”,第356行,在execute中
输出=self.handle(*args,**选项)
文件“/home/arch/.environments/djanveg_dev/lib/python3.5/site packages/django/core/management/commands/test.py”,第72行,在handle中
失败=测试运行程序。运行测试(测试标签)
文件“/home/arch/.environments/djanveg_dev/lib/python3.5/site packages/django/test/runner.py”,第549行,运行测试中
old\u config=self.setup\u databases()
setup\u数据库中的文件“/home/arch/.environments/djanveg\u dev/lib/python3.5/site packages/django/test/runner.py”,第499行
self.parallel,**kwargs
setup\u数据库中的文件“/home/arch/.environments/djanveg\u dev/lib/python3.5/site packages/django/test/runner.py”,第743行
serialize=connection.settings_dict.get(“TEST”,{}).get(“serialize”,True),
文件“/home/arch/.environments/djanveg\u dev/lib/python3.5/site packages/django/db/backends/base/creation.py”,第78行,在create\u test\u db中
self.connection.\u test\u serialized\u contents=self.serialize\u db\u to\u string()
文件“/home/arch/.environments/djanveg\u dev/lib/python3.5/site packages/django/db/backends/base/creation.py”,第122行,以字符串形式序列化
serializer.serialize(“json”,get_objects(),indent=None,stream=out)
文件“/home/arch/.environments/djanveg\u dev/lib/python3.5/site packages/django/core/serializers/\uuuuu init\uuuuuuuu.py”,第129行,按顺序排列
s、 序列化(查询集,**选项)
文件“/home/arch/.environments/djanveg_dev/lib/python3.5/site packages/django/core/serializers/base.py”,第79行,以序列化形式
对于计数,枚举中的obj(queryset,start=1):
文件“/home/arch/.environments/djanveg_dev/lib/python3.5/site packages/django/db/backends/base/creation.py”,第118行,在get_objects中
对于queryset.iterator()中的obj:
文件“/home/arch/.environments/djanveg_dev/lib/python3.5/site packages/django/db/models/query.py”,第54行,在__
结果=编译器。执行_sql()
文件“/home/arch/.environments/djanveg_dev/lib/python3.5/site packages/django/db/models/sql/compiler.py”,第835行,在execute_sql中
cursor.execute(sql,params)
文件“/home/arch/.environments/djanveg_dev/lib/python3.5/site packages/django/db/backends/utils.py”,第64行,在execute中
返回self.cursor.execute(sql,params)
文件“/home/arch/.environments/djanveg\u dev/lib/python3.5/site packages/django/db/utils.py”,第94行,在退出时__
6.重新播放(dj_exc_类型、dj_exc_值、回溯)
文件“/home/arch/.environments/djanveg_dev/lib/python3.5/site packages/django/utils/six.py”,第685行,在reraise中
通过_回溯(tb)提升值
文件“/home/arch/.environments/djanveg_dev/lib/python3.5/site packages/django/db/backends/utils.py”,第64行,在execute中
返回self.cursor.execute(sql,params)
django.db.utils.ProgrammingError:关系“recipes\u flagstestmodel”不存在
第1行:…从“配方”中“删除”了“配方”。。。
问题在于您尚未将该模型迁移到数据库中,这是因为您在测试文件中创建了模型,Django只检查models.py
文件中的模型,因此将下一个代码移动到models.py
文件:
class FlagsTestModel(FlagsModel):
class Meta:
app_label = 'recipes'
然后运行
python manage.py makemigrations
和python manage.py mgirate
在数据库中创建表,一切都将按预期工作。您运行了迁移吗?@Abdulafaja-yep它说没有要应用的迁移。
您运行了python manage.py makemigrations吗?@soupboy-yep这一个说:没有检测到更改
Ok,请确保您的应用程序位于settings.pyI中的项目已安装应用程序列表中,但是我不想在我的开发数据库中有我的抽象模型,我只想测试它,并且希望Django只为我的测试做它db@Con也许您可以先在数据库中创建表,然后向模型中添加一个元,这样它就知道在哪里查找:D
class FlagsTestModel(FlagsModel):
class Meta:
app_label = 'recipes'