鼻子测试和类方法

Nosetests and classmethods

当我 运行 nosetests:

时出现奇怪的错误
======================================================================
ERROR: Extract test data from tarball.
----------------------------------------------------------------------
TypeError: extract_test_data() missing 1 required positional argument: 'calling_file'

有问题的代码分为两个文件:

tests/core.py

class CoreTestCase(unittest.TestCase):
    @classmethod
    def extract_test_data(cls, calling_file, base='data', name_only=False):
        """Extract test data from tarball.
           ...
        """
        ...

测试/.../test_this.py

class TestThis(core.CoreTestCase):
    """Run some tests."""

    @classmethod
    def setUpClass(cls):
        cls.TESTDAT_DIR = cls.extract_test_data(__file__)

导入等工作正常,unittest没有任何问题。但出于某种原因,nose 正在破坏调用。

我已经尝试了以下所有方法:

cls.TESTDAT_DIR = cls.extract_test_data(calling_file=__file__)
cls.TESTDAT_DIR = cls.extract_test_data(cls,__file__)
cls.TESTDAT_DIR = cls.extract_test_data(cls, calling_file=__file__)

但我仍然遇到奇怪的分类错误:

TypeError: extract_test_data() got multiple values for argument 'calling_file'
AttributeError: type object 'TestThis' has no attribute 'TESTDAT_DIR'

nose 正试图 运行 extract_test_data 就像它是一个单元测试。重命名以排除标记 test 或将其添加到 extract_test_data:

from nose.tools import nottest

class CoreTestCase(unittest.TestCase):

@nottest
@classmethod
def extract_test_data(cls, calling_file, base='data', name_only=False):
    """Extract test data from tarball.
       ...
    """
    ...

编辑:link 到文档,其中解释说,默认情况下,testMatch 正则表达式将 运行 has test or Test at a word boundary or following a - or _[=18= 的任何函数]