test_linux.py 文件源码

def test_warnings_mocked(self):
        with mock.patch('psutil._pslinux.open', create=True) as m:
            with warnings.catch_warnings(record=True) as ws:
                warnings.simplefilter("always")
                ret = psutil.swap_memory()
                assert m.called
                self.assertEqual(len(ws), 1)
                w = ws[0]
                self.assertTrue(w.filename.endswith('psutil/_pslinux.py'))
                self.assertIn(
                    "'sin' and 'sout' swap memory stats couldn't "
                    "be determined", str(w.message))
                self.assertEqual(ret.sin, 0)
                self.assertEqual(ret.sout, 0)