test_io.py 文件源码

def test_misc(self):
        shell = MockShell()
        f = PseudoOutputFile(shell, 'stdout', 'utf-8')
        self.assertIsInstance(f, io.TextIOBase)
        self.assertEqual(f.encoding, 'utf-8')
        self.assertIsNone(f.errors)
        self.assertIsNone(f.newlines)
        self.assertEqual(f.name, '<stdout>')
        self.assertFalse(f.closed)
        self.assertTrue(f.isatty())
        self.assertFalse(f.readable())
        self.assertTrue(f.writable())
        self.assertFalse(f.seekable())