I have defined a custom error but if I test if custom error gets raised, it fails.
我已经定义了一个自定义错误,但如果我测试是否引发了自定义错误,则会失败。
My models.py:
class CustomError(Exception):
"""
This exception is my custom error
"""
class Company(models.Model):
name = models.CharField(max_length=200)
def test_error(self):
raise CustomError('hello')
and in my tests.py:
在我的tests.py中:
import unittest
from myapp.models import Company,Customer,Employee,Location,Product,ProductCategory,AllreadyPayedError,CustomError
class CompanyTestCase(unittest.TestCase):
def setUp(self):
self.company = Company.objects.create(name="lizto")
def test2(self):
self.assertRaises(CustomError, self.company.test_error)
The test fails with this output:
此输出的测试失败:
======================================================================
ERROR: test2 (myapp.api.tests.CompanyTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Users/......./tests.py", line 27, in test2
self.assertRaises(CustomError, self.company.test_error)
File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/
python2.5/unittest.py", line 320, in failUnlessRaises
callableObj(*args, **kwargs)
File " /Users/....../models.py", line 17, in test_error
raise CustomError('hello')
CustomError: hello
----------------------------------------------------------------------
Ran 18 tests in 1.122s
Anybody an idea what I should do to test if CustomError
gets raised
任何人都知道我应该怎么做来测试是否引发了CustomError
3 个解决方案
#1
You could catch the error and assert that it occured.
你可以捕获错误并断言它发生了。
eg: (untested)
def test2(self)
error_occured = False
try:
self.company.test_error()
except CustomError:
error_occured = True
self.assertTrue(error_ocurred)
Seems far from ideal but would unblock you.
似乎远非理想,但会阻止你。
#2
Thanks Andy for your answer the problem was however that I was using the wrong/different kinds of imports: In my settings in my INSTALLED_APPS I had myproj.myapp
感谢Andy的回答,问题是我使用了错误/不同种类的导入:在我的INSTALLED_APPS设置中我有myproj.myapp
After I changed:
我换了之后:
from myapp.models import Company,CustomError
To:
from myproj.myapp.models import Company,CustomError
It worked as expected
它按预期工作
#3
Assert Raises seems to be more unintuitive to use than other unit tests. I think this post gives a pretty good picture of how to use it (without just providing a work around): Why isn't assertRaises catching my Attribute Error using python unittest?
Assert Raises似乎比其他单元测试更不直观。我认为这篇文章给出了如何使用它的非常好的图片(不仅提供了解决方法):为什么assertRaises没有使用python unittest捕获我的属性错误?
Cheers!
#1
You could catch the error and assert that it occured.
你可以捕获错误并断言它发生了。
eg: (untested)
def test2(self)
error_occured = False
try:
self.company.test_error()
except CustomError:
error_occured = True
self.assertTrue(error_ocurred)
Seems far from ideal but would unblock you.
似乎远非理想,但会阻止你。
#2
Thanks Andy for your answer the problem was however that I was using the wrong/different kinds of imports: In my settings in my INSTALLED_APPS I had myproj.myapp
感谢Andy的回答,问题是我使用了错误/不同种类的导入:在我的INSTALLED_APPS设置中我有myproj.myapp
After I changed:
我换了之后:
from myapp.models import Company,CustomError
To:
from myproj.myapp.models import Company,CustomError
It worked as expected
它按预期工作
#3
Assert Raises seems to be more unintuitive to use than other unit tests. I think this post gives a pretty good picture of how to use it (without just providing a work around): Why isn't assertRaises catching my Attribute Error using python unittest?
Assert Raises似乎比其他单元测试更不直观。我认为这篇文章给出了如何使用它的非常好的图片(不仅提供了解决方法):为什么assertRaises没有使用python unittest捕获我的属性错误?
Cheers!