什么会导致这个unicode对象在nosetests lib中不可调用错误？

Question

我有一些测试流程的API的测试案例（使用requests.Session()，同时为我们的后端多次调用。）

这个测试用例通过我的Mac和其他国家人民的Mac电脑。但是当它在Jenkins中执行时，我得到一个错误。还有其他类似的测试案例，在Jenkins中没有问题就通过了。不幸的是，我不能分享测试代码本身。

詹金斯在Ubuntu 14.04

运行，但这里的测试代码的第一行，如果有帮助。

# filename: test_payment_visa.py 

import unittest 
from tests.utils import WWHTTPClient 
import math 
from nose.plugins.attrib import attr 


class TestPaymentWorkflow(unittest.TestCase): 
    def setUp(self): 
     self.ww_api = WWHTTPClient() 

    def test_payment_visa(self): 
     """Test for Payment Workflow via VISA""" 

有没有人有一个想法，这可能是什么？

Traceback (most recent call last): 
    File "/var/lib/jenkins/.virtualenvs/api-tests/bin/nosetests", line 11, in <module> 
    sys.exit(run_exit()) 
    File "/var/lib/jenkins/.virtualenvs/api-tests/local/lib/python2.7/site-packages/nose/core.py", line 121, in __init__ 
    **extra_args) 
    File "/usr/lib/python2.7/unittest/main.py", line 95, in __init__ 
    self.runTests() 
    File "/var/lib/jenkins/.virtualenvs/api-tests/local/lib/python2.7/site-packages/nose/core.py", line 207, in runTests 
    result = self.testRunner.run(self.test) 
    File "/var/lib/jenkins/.virtualenvs/api-tests/local/lib/python2.7/site-packages/nose/core.py", line 62, in run 
    test(result) 
    File "/var/lib/jenkins/.virtualenvs/api-tests/local/lib/python2.7/site-packages/nose/suite.py", line 177, in __call__ 
    return self.run(*arg, **kw) 
    File "/var/lib/jenkins/.virtualenvs/api-tests/local/lib/python2.7/site-packages/nose/suite.py", line 224, in run 
    test(orig) 
    File "/usr/lib/python2.7/unittest/suite.py", line 70, in __call__ 
    return self.run(*args, **kwds) 
    File "/var/lib/jenkins/.virtualenvs/api-tests/local/lib/python2.7/site-packages/nose/suite.py", line 75, in run 
    test(result) 
    File "/var/lib/jenkins/.virtualenvs/api-tests/local/lib/python2.7/site-packages/nose/suite.py", line 177, in __call__ 
    return self.run(*arg, **kw) 
    File "/var/lib/jenkins/.virtualenvs/api-tests/local/lib/python2.7/site-packages/nose/suite.py", line 224, in run 
    test(orig) 
    File "/var/lib/jenkins/.virtualenvs/api-tests/local/lib/python2.7/site-packages/nose/suite.py", line 177, in __call__ 
    return self.run(*arg, **kw) 
    File "/var/lib/jenkins/.virtualenvs/api-tests/local/lib/python2.7/site-packages/nose/suite.py", line 224, in run 
    test(orig) 
    File "/var/lib/jenkins/.virtualenvs/api-tests/local/lib/python2.7/site-packages/nose/suite.py", line 177, in __call__ 
    return self.run(*arg, **kw) 
    File "/var/lib/jenkins/.virtualenvs/api-tests/local/lib/python2.7/site-packages/nose/suite.py", line 224, in run 
    test(orig) 
    File "/var/lib/jenkins/.virtualenvs/api-tests/local/lib/python2.7/site-packages/nose/case.py", line 45, in __call__ 
    return self.run(*arg, **kwarg) 
    File "/var/lib/jenkins/.virtualenvs/api-tests/local/lib/python2.7/site-packages/nose/case.py", line 138, in run 
    result.addError(self, err) 
    File "/var/lib/jenkins/.virtualenvs/api-tests/local/lib/python2.7/site-packages/nose/proxy.py", line 131, in addError 
    plugins.addError(self.test, err) 
    File "/var/lib/jenkins/.virtualenvs/api-tests/local/lib/python2.7/site-packages/nose/plugins/manager.py", line 99, in __call__ 
    return self.call(*arg, **kw) 
    File "/var/lib/jenkins/.virtualenvs/api-tests/local/lib/python2.7/site-packages/nose/plugins/manager.py", line 167, in simple 
    result = meth(*arg, **kw) 
    File "/var/lib/jenkins/.virtualenvs/api-tests/local/lib/python2.7/site-packages/nose/plugins/xunit.py", line 288, in addError 
    id = test.id() 
    File "/var/lib/jenkins/.virtualenvs/api-tests/local/lib/python2.7/site-packages/nose/case.py", line 85, in id 
    return self.test.id() 
TypeError: 'unicode' object is not callable 

Answer 1

所以我的代码有问题。

我使用了一个声明self.id = r.json()["orders"][0]["id"]

# filename: test_payment_visa.py 

import unittest 
from tests.utils import WWHTTPClient 
import math 
from nose.plugins.attrib import attr 


class TestPaymentWorkflow(unittest.TestCase): 
    def setUp(self): 
     self.ww_api = WWHTTPClient() 

    def test_payment_visa(self): 
     """Test for Payment Workflow via VISA"""  
     ... 
     ... 
     self.id = r.json()["orders"][0]["id"] 
     ... 
     ... 

问题是，unittest.TestCase CLAS有一个名为id方法。

def id(self): 
    """Get a short(er) description of the test 
    """ 
    return self.test.id() 

所以我认为试运行期间我设置self.id为Unicode字符串，然后nosetests试图调用其id方法，并且正在TypeError: 'unicode' object is not callable例外。