test.py 文件源码

def run_tests(self):
        import unittest

        # Purge modules under test from sys.modules. The test loader will
        # re-import them from the build location. Required when 2to3 is used
        # with namespace packages.
        if sys.version_info >= (3,) and getattr(self.distribution, 'use_2to3', False):
            module = self.test_args[-1].split('.')[0]
            if module in _namespace_packages:
                del_modules = []
                if module in sys.modules:
                    del_modules.append(module)
                module += '.'
                for name in sys.modules:
                    if name.startswith(module):
                        del_modules.append(name)
                list(map(sys.modules.__delitem__, del_modules))

        loader_ep = EntryPoint.parse("x="+self.test_loader)
        loader_class = loader_ep.load(require=False)
        cks = loader_class()
        unittest.main(
            None, None, [unittest.__file__]+self.test_args,
            testLoader = cks
        )