用于运行单元测试的Python包结构，setup.py

我不确定我是正确组织我的包结构还是在setup.py中使用正确的选项，因为当我尝试运行单元测试时我遇到错误 .

我有这样的结构：

/project
   /bin
   /src
       /pkgname          
           __init__.py
           module1.py
           module2.py
   /tests
       __init__.py
       test1.py
       test2.py

我的setup.py看起来像这样：

#!/usr/bin/env python                                                                                                                                        
from setuptools import setup, find_packages

setup(version='0.1',
      description='Trend following library',
      author='Nate Reed',
      author_email='nate@natereed.com',
      packages=find_packages(),
      install_requires=['numpy'],
      test_suite="tests",                          
)

当我运行'python setup.py test'时，我得到：

nate@nate-desktop:~/PycharmProjects/trendfollowing$ sudo python setup.py test
running test
running egg_info
writing requirements to UNKNOWN.egg-info/requires.txt
writing UNKNOWN.egg-info/PKG-INFO
writing top-level names to UNKNOWN.egg-info/top_level.txt
writing dependency_links to UNKNOWN.egg-info/dependency_links.txt
reading manifest file 'UNKNOWN.egg-info/SOURCES.txt'
writing manifest file 'UNKNOWN.egg-info/SOURCES.txt'
running build_ext
Traceback (most recent call last):
  File "setup.py", line 11, in <module>
    test_suite="tests",
  File "/usr/lib/python2.6/distutils/core.py", line 152, in setup
    dist.run_commands()
  File "/usr/lib/python2.6/distutils/dist.py", line 975, in run_commands
    self.run_command(cmd)
  File "/usr/lib/python2.6/distutils/dist.py", line 995, in run_command
    cmd_obj.run()
  File "/usr/lib/python2.6/dist-packages/setuptools/command/test.py", line 137, in run
    self.with_project_on_sys_path(self.run_tests)
  File "/usr/lib/python2.6/dist-packages/setuptools/command/test.py", line 117, in with_project_on_sys_path
    func()
  File "/usr/lib/python2.6/dist-packages/setuptools/command/test.py", line 146, in run_tests
    testLoader = loader_class()
  File "/usr/lib/python2.6/unittest.py", line 816, in __init__
    self.parseArgs(argv)
  File "/usr/lib/python2.6/unittest.py", line 843, in parseArgs
    self.createTests()
  File "/usr/lib/python2.6/unittest.py", line 849, in createTests
    self.module)
  File "/usr/lib/python2.6/unittest.py", line 613, in loadTestsFromNames
    suites = [self.loadTestsFromName(name, module) for name in names]
  File "/usr/lib/python2.6/unittest.py", line 587, in loadTestsFromName
    return self.loadTestsFromModule(obj)
  File "/usr/lib/python2.6/dist-packages/setuptools/command/test.py", line 34, in loadTestsFromModule
    tests.append(self.loadTestsFromName(submodule))
  File "/usr/lib/python2.6/unittest.py", line 584, in loadTestsFromName
    parent, obj = obj, getattr(obj, part)
AttributeError: 'module' object has no attribute 'test1'

测试名称是否需要匹配模块名称？我的包结构中是否还需要遵循其他约定？