88 lines
2.5 KiB
Python
88 lines
2.5 KiB
Python
'''Tests for WindowsConsoleIO
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Unfortunately, most testing requires interactive use, since we have no
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API to read back from a real console, and this class is only for use
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with real consoles.
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Instead, we validate that basic functionality such as opening, closing
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and in particular fileno() work, but are forced to leave real testing
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to real people with real keyborads.
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'''
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import io
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import unittest
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import sys
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if sys.platform != 'win32':
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raise unittest.SkipTest("test only relevant on win32")
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ConIO = io._WindowsConsoleIO
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class WindowsConsoleIOTests(unittest.TestCase):
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def test_abc(self):
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self.assertTrue(issubclass(ConIO, io.RawIOBase))
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self.assertFalse(issubclass(ConIO, io.BufferedIOBase))
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self.assertFalse(issubclass(ConIO, io.TextIOBase))
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def test_open_fd(self):
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try:
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f = ConIO(0)
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except ValueError:
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# cannot open console because it's not a real console
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pass
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else:
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self.assertTrue(f.readable())
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self.assertFalse(f.writable())
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self.assertEqual(0, f.fileno())
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f.close() # multiple close should not crash
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f.close()
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try:
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f = ConIO(1, 'w')
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except ValueError:
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# cannot open console because it's not a real console
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pass
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else:
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self.assertFalse(f.readable())
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self.assertTrue(f.writable())
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self.assertEqual(1, f.fileno())
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f.close()
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f.close()
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try:
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f = ConIO(2, 'w')
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except ValueError:
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# cannot open console because it's not a real console
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pass
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else:
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self.assertFalse(f.readable())
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self.assertTrue(f.writable())
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self.assertEqual(2, f.fileno())
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f.close()
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f.close()
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def test_open_name(self):
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f = ConIO("CON")
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self.assertTrue(f.readable())
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self.assertFalse(f.writable())
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self.assertIsNotNone(f.fileno())
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f.close() # multiple close should not crash
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f.close()
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f = ConIO('CONIN$')
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self.assertTrue(f.readable())
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self.assertFalse(f.writable())
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self.assertIsNotNone(f.fileno())
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f.close()
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f.close()
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f = ConIO('CONOUT$', 'w')
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self.assertFalse(f.readable())
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self.assertTrue(f.writable())
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self.assertIsNotNone(f.fileno())
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f.close()
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f.close()
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if __name__ == "__main__":
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unittest.main()
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