使用路径模拟os.path.dirname

我正在为读取Excel文件的Python程序编写测试。使用路径模拟os.path.dirname

为了有一个工作测试标准，我有所谓的“工作表”。

我的项目结构是

Root/ 
--->tests 
------->golden_sheets/ 
----------->Desired results 
------->src 
----------->Python Files 
------->Working sheets/ 
---->main/ 
---->sheets/

我运行该测试是

@patch('os.path.dirname') 
    def test_ResolutionSLA_Full(self): 
     datetime.date = MockDate 
     print(datetime.date.today()) 
     os.path.dirname.return_value = "../working_sheets" 
     resolutionSLA = ResolutionSLA() 
     resolutionSLA.run_report()

但是，我得到的错误

Traceback (most recent call last): 
    File "/usr/lib/python3.5/unittest/case.py", line 59, in testPartExecutor 
    yield 
    File "/usr/lib/python3.5/unittest/case.py", line 601, in run 
    testMethod() 
    File "/usr/local/lib/python3.5/dist-packages/mock/mock.py", line 1305, in patched 
    return func(*args, **keywargs) 
TypeError: test_ResolutionSLA_Full() takes 1 positional argument but 2 were given

“目录名” 的使用方式是

self.dir_path = os.path.dirname(os.path.abspath(__file__)) + "/"

这通常会返回

/home/jphamlett/Documents/Work/ServiceNowReportAutomation/

不过，我想这回在测试过程中

../working_sheets/

我甚至试图用同样的方法，日期时间

import os 


class MockOSPath(os.path): 

    @classmethod 
    def abspath(cls, file): 
     return "../working_sheets/MockOSPath.py"

但是这给我的错误

Traceback (most recent call last): 
    File "/home/jphamlett/.jetbrain/pycharm/helpers/pycharm/_jb_unittest_runner.py", line 35, in <module> 
    main(argv=args, module=None, testRunner=unittestpy.TeamcityTestRunner, buffer=not JB_DISABLE_BUFFERING) 
    File "/usr/lib/python3.5/unittest/main.py", line 93, in __init__ 
    self.parseArgs(argv) 
    File "/usr/lib/python3.5/unittest/main.py", line 140, in parseArgs 
    self.createTests() 
    File "/usr/lib/python3.5/unittest/main.py", line 147, in createTests 
    self.module) 
    File "/usr/lib/python3.5/unittest/loader.py", line 219, in loadTestsFromNames 
    suites = [self.loadTestsFromName(name, module) for name in names] 
    File "/usr/lib/python3.5/unittest/loader.py", line 219, in <listcomp> 
    suites = [self.loadTestsFromName(name, module) for name in names] 
    File "/usr/lib/python3.5/unittest/loader.py", line 153, in loadTestsFromName 
    module = __import__(module_name) 
    File "/home/jphamlett/Documents/Work/ServiceNowReportAutomation/tests/src/ResolutionSLA_Tests.py", line 8, in <module> 
    from MockOSPath import MockOSPath 
    File "/home/jphamlett/Documents/Work/ServiceNowReportAutomation/tests/src/MockOSPath.py", line 4, in <module> 
    class MockOSPath(os.path): 
TypeError: module.__init__() takes at most 2 arguments (3 given)

我在做什么错？嘲笑的日期时间工作得很好。

来源

2017-07-13 John Hamlett IV

作为测试的错误输出表明您传递两个参数测试：

self：测试类
@patch（“os.path.dirname”）：修补对象

要修复它只是增加一个参数的方法签名和实际测试使用它：

@patch('os.path.dirname') 
    def test_ResolutionSLA_Full(self, mock_dir): 
     datetime.date = MockDate 
     print(datetime.date.today()) 
     mock_dir.return_value = "../working_sheets" 
     resolutionSLA = ResolutionSLA() 
     resolutionSLA.run_report()

来源

2017-07-15 09:14:41

使用路径模拟os.path.dirname

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