为所有 nosetests 测试执行一次设置和拆卸功能

Setup and teardown functions executed once for all nosetests tests

如何为所有 nosetests 测试执行一次设置和拆卸功能?

def common_setup():
    #time consuming code
    pass

def common_teardown():
    #tidy up
    pass

def test_1():
    pass

def test_2():
    pass

#desired behavior
common_setup()
test_1()
test_2()
common_teardown()

请注意,similar question 的答案不适用于 python 2.7.9-1、python-unittest2 0.5.1-1 和 python-nose 1.3.6-1 用 pass 替换点并添加行 import unittest 后。 不幸的是,我的声誉太低,无法对此发表评论。

您可以拥有模块级设置功能。根据nose documentation:

Test modules offer module-level setup and teardown; define the method setup, setup_module, setUp or setUpModule for setup, teardown, teardown_module, or tearDownModule for teardown.

因此,更具体地说,对于您的情况:

def setup_module():
    print "common_setup"

def teardown_module():
    print "common_teardown"

def test_1():
    print "test_1"

def test_2():
    print "test_2"

运行 测试给你:

$ nosetests common_setup_test.py -s -v
common_setup
common_setup_test.test_1 ... test_1
ok
common_setup_test.test_2 ... test_2
ok
common_teardown

----------------------------------------------------------------------
Ran 2 tests in 0.000s

OK

选择哪个名称并不重要,因此 setupsetup_module 的工作原理相同,但 setup_module 更清晰。