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這是unittest and metaclass: automatic test_* method generation後續問題:鼻子,和unittest.TestCase生成元類:自動生成TEST_ *方法沒有發現
對於這種(固定的)佈局unittest.TestCase生成:
#!/usr/bin/env python
import unittest
class TestMaker(type):
def __new__(cls, name, bases, attrs):
callables = dict([
(meth_name, meth) for (meth_name, meth) in attrs.items() if
meth_name.startswith('_test')
])
for meth_name, meth in callables.items():
assert callable(meth)
_, _, testname = meth_name.partition('_test')
# inject methods: test{testname}_v4,6(self)
for suffix, arg in (('_false', False), ('_true', True)):
testable_name = 'test{0}{1}'.format(testname, suffix)
testable = lambda self, func=meth, arg=arg: func(self, arg)
attrs[testable_name] = testable
return type.__new__(cls, name, bases, attrs)
class TestCase(unittest.TestCase):
__metaclass__ = TestMaker
def test_normal(self):
print 'Hello from ' + self.id()
def _test_this(self, arg):
print '[{0}] this: {1}'.format(self.id(), str(arg))
def _test_that(self, arg):
print '[{0}] that: {1}'.format(self.id(), str(arg))
if __name__ == '__main__':
unittest.main()
這使用stdlib
的框架。預期和實際輸出:,
C:\Users\santa4nt\Desktop>C:\Python27\python.exe test_meta.py
Hello from __main__.TestCase.test_normal
.[__main__.TestCase.test_that_false] that: False
.[__main__.TestCase.test_that_true] that: True
.[__main__.TestCase.test_this_false] this: False
.[__main__.TestCase.test_this_true] this: True
.
----------------------------------------------------------------------
Ran 5 tests in 0.015s
OK
但是因爲我實際使用nose,這一招似乎不同意。我得到的輸出是:
C:\Users\santa4nt\Desktop>C:\Python27\python.exe C:\Python27\Scripts\nosetests test_meta.py
.
----------------------------------------------------------------------
Ran 1 test in 0.000s
OK
總之,由元類產生的test_*
方法不nose註冊。任何人都可以闡明這一點嗎?
感謝,
看一看http://ivory.idyll.org/articles/nose-intro.html#a-somewhat-更完整的引導到測試發現,和執行。使用'-vv'運行可能會提供您所需的信息。 – ncoghlan 2011-03-03 04:38:32
也看看http://stackoverflow.com/questions/347574/how-do-i-get-nose-to-discover-dynamically-generated-testcases – ncoghlan 2011-03-03 04:40:19
那麼,你知道什麼,有人試圖做類似的事情。我已經看過鼻子的測試生成器,但不幸的是,它不支持從'unittest.TestCase'派生的測試類,我需要在其子類樹中定義的fixtures。 – Santa 2011-03-03 05:15:22