是否有一个现有的插件可以像:
一样使用@nose.plugins.expectedfailure
def not_done_yet():
a = Thingamajig().fancynewthing()
assert a == "example"
如果测试失败,它将显示为跳过的测试:
$ nosetests
...S..
..但是如果意外通过,它会出现类似于失败的情况,可能是:
=================================
UNEXPECTED PASS: not_done_yet
---------------------------------
-- >> begin captured stdout << --
Things and etc
...
有点like SkipTest,但没有实现为阻止测试运行的异常。
我唯一能找到的就是this ticket支持unittest2
expectedFailure装饰器(虽然我不想使用unittest2,即使鼻子支持它)
答案 0 :(得分:11)
我不知道鼻子插件,但你可以轻松编写自己的装饰器来做到这一点。这是一个简单的实现:
import functools
import nose
def expected_failure(test):
@functools.wraps(test)
def inner(*args, **kwargs):
try:
test(*args, **kwargs)
except Exception:
raise nose.SkipTest
else:
raise AssertionError('Failure expected')
return inner
如果我运行这些测试:
@expected_failure
def test_not_implemented():
assert False
@expected_failure
def test_unexpected_success():
assert True
我从鼻子得到以下输出:
tests.test.test_not_implemented ... SKIP
tests.test.test_unexpected_success ... FAIL
======================================================================
FAIL: tests.test.test_unexpected_success
----------------------------------------------------------------------
Traceback (most recent call last):
File "C:\Python32\lib\site-packages\nose-1.1.2-py3.2.egg\nose\case.py", line 198, in runTest
self.test(*self.arg)
File "G:\Projects\Programming\dt-tools\new-sanbi\tests\test.py", line 16, in inner
raise AssertionError('Failure expected')
AssertionError: Failure expected
----------------------------------------------------------------------
Ran 2 tests in 0.016s
FAILED (failures=1)
答案 1 :(得分:4)
如果我误解了,请原谅我,但不是核心python的unittest
库提供expectedFailure
装饰器所提供的行为,即...与[{1}}扩展兼容?
有关使用示例,请参阅docs和post about its implementation。
答案 2 :(得分:1)
您可以通过以下两种方式之一来实现:
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
let secondController = segue.destinationViewController as UISecondViewController
// you can initialize some properties on second view controller instance before performing segue
}
from nose.tools import raises
@raises(TypeError)
def test_raises_type_error():
raise TypeError("This test passes")
nose.tools.assert_raises
如果未引发异常,测试将失败。
我知道,3年前问过:)