pycharm下运行unittest的问题

环境：

系统：window7 64

软件：pycharm

版本：2016.3.2

问题描述：

使用unittest类的时候出现问题，问题截图如下

Pycharm 2016.2执行单元测试遇到如下问题：

RuntimeWarning: Parent module ‘YOUR_MODULE_HERE’ not found while handling absolute import 
import unittest

解决方法，使用旧的utrunner.py文件替换当前版本，文件路径为…/PyCharm.app/Contents/helpers/pycharm/utrunner.py（macos平台）或者…\JetBrains\PyCharm 2016.2.2\helpers\pycharm\utrunner.py（windows平台）。utrunner.py的内容如下（替换文件前请先做好备份）：

utrunner.py如下：

 import sys
 import imp
 import os
 import fnmatch

 helpers_dir = os.getenv("PYCHARM_HELPERS_DIR", sys.path[0])
 if sys.path[0] != helpers_dir:
   sys.path.insert(0, helpers_dir)

 from tcunittest import TeamcityTestRunner
 from nose_helper import TestLoader, ContextSuite
 from pycharm_run_utils import import_system_module
 from pycharm_run_utils import adjust_sys_path
 from pycharm_run_utils import debug, getModuleName, PYTHON_VERSION_MAJOR

 adjust_sys_path()

 os = import_system_module("os")
 re = import_system_module("re")

 modules = {}

 def loadSource(fileName):
   baseName = os.path.basename(fileName)
   moduleName = os.path.splitext(baseName)[0]

   # for users wanted to run unittests under django
   #because of django took advantage of module name
   settings_file = os.getenv('DJANGO_SETTINGS_MODULE')
   if settings_file and moduleName == "models":
     baseName = os.path.realpath(fileName)
     moduleName = ".".join((baseName.split(os.sep)[-2], "models"))

   if moduleName in modules and len(sys.argv[1:-1]) == 1: # add unique number to prevent name collisions
     cnt = 2
     prefix = moduleName
     while getModuleName(prefix, cnt) in modules:
       cnt += 1
     moduleName = getModuleName(prefix, cnt)
   debug("/ Loading " + fileName + " as " + moduleName)
   if os.path.isdir(fileName):
     fileName = fileName + os.path.sep
   module = imp.load_source(moduleName, fileName)
   modules[moduleName] = module
   return module

 def walkModules(modulesAndPattern, dirname, names):
   modules = modulesAndPattern[0]
   pattern = modulesAndPattern[1]
   # fnmatch converts glob to regexp
   prog_list = [re.compile(fnmatch.translate(pat.strip())) for pat in pattern.split(',')]
   for name in names:
     for prog in prog_list:
       if name.endswith(".py") and prog.match(name):
         modules.append(loadSource(os.path.join(dirname, name)))

 # For default pattern see https://docs.python.org/2/library/unittest.html#test-discovery
 def loadModulesFromFolderRec(folder, pattern="test*.py"):
   modules = []
   # fnmatch converts glob to regexp
   prog_list = [re.compile(fnmatch.translate(pat.strip())) for pat in pattern.split(',')]
   for root, dirs, files in os.walk(folder):
     files = [f for f in files if not f[0] == '.']
     dirs[:] = [d for d in dirs if not d[0] == '.']
     for name in files:
       for prog in prog_list:
         if name.endswith(".py") and prog.match(name):
           modules.append(loadSource(os.path.join(root, name)))
   return modules

 testLoader = TestLoader()
 all = ContextSuite()
 pure_unittest = False

 def setLoader(module):
   global testLoader, all
   try:
     module.__getattribute__('unittest2')
     import unittest2

     testLoader = unittest2.TestLoader()
     all = unittest2.TestSuite()
   except:
     pass

 if __name__ == "__main__":
   arg = sys.argv[-1]
   if arg == "true":
     import unittest

     testLoader = unittest.TestLoader()
     all = unittest.TestSuite()
     pure_unittest = True

     if len(sys.argv) == 2:  # If folder not provided, we need pretend folder is current
      sys.argv.insert(1, ".")

   options = {}
   for arg in sys.argv[1:-1]:
     arg = arg.strip()
     if len(arg) == 0:
       continue

     if arg.startswith("--"):
       options[arg[2:]] = True
       continue

     a = arg.split("::")
     if len(a) == 1:
       # From module or folder
       a_splitted = a[0].split("_args_separator_")  # ";" can't be used with bash, so we use "_args_separator_"
       if len(a_splitted) != 1:
         # means we have pattern to match against
         if os.path.isdir(a_splitted[0]):
           debug("/ from folder " + a_splitted[0] + ". Use pattern: " + a_splitted[1])
           modules = loadModulesFromFolderRec(a_splitted[0], a_splitted[1])
       else:
         if  os.path.isdir(a[0]):
           debug("/ from folder " + a[0])
           modules = loadModulesFromFolderRec(a[0])
         else:
           debug("/ from module " + a[0])
           modules = [loadSource(a[0])]

       for module in modules:
         all.addTests(testLoader.loadTestsFromModule(module))

     elif len(a) == 2:
       # From testcase
       debug("/ from testcase " + a[1] + " in " + a[0])
       module = loadSource(a[0])
       setLoader(module)

       if pure_unittest:
         all.addTests(testLoader.loadTestsFromTestCase(getattr(module, a[1])))
       else:
         all.addTests(testLoader.loadTestsFromTestClass(getattr(module, a[1])),
                      getattr(module, a[1]))
     else:
       # From method in class or from function
       debug("/ from method " + a[2] + " in testcase " + a[1] + " in " + a[0])
       module = loadSource(a[0])
       setLoader(module)

       if a[1] == "":
         # test function, not method
         all.addTest(testLoader.makeTest(getattr(module, a[2])))
       else:
         testCaseClass = getattr(module, a[1])
         try:
           all.addTest(testCaseClass(a[2]))
         except:
           # class is not a testcase inheritor
           all.addTest(
             testLoader.makeTest(getattr(testCaseClass, a[2]), testCaseClass))

   debug("/ Loaded " + str(all.countTestCases()) + " tests")
   TeamcityTestRunner().run(all, **options)

相关文档：

1. Pycharm import RuntimeWarning after updating to 2016.2 - 简书
2. RuntimeWarning: Parent module ‘YOUR_MODULE_HERE’ not found while handling absolute import : PY-20171
3. RuntimeWarning: Parent module ‘settings’ not found while handling absolute import - 常城的专栏 - 博客频道 - CSDN.NET
4. http://blog.csdn.net/wirelessqa/article/details/53465854

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