69 lines
2.3 KiB
Python
69 lines
2.3 KiB
Python
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import unittest2
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class Test_StreamSlice(unittest2.TestCase):
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def _getTargetClass(self):
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from gcloud.streaming.stream_slice import StreamSlice
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return StreamSlice
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def _makeOne(self, *args, **kw):
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return self._getTargetClass()(*args, **kw)
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def test_ctor(self):
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from io import BytesIO
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CONTENT = b'CONTENT GOES HERE'
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MAXSIZE = 4
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stream = BytesIO(CONTENT)
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stream_slice = self._makeOne(stream, MAXSIZE)
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self.assertTrue(stream_slice._stream is stream)
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self.assertEqual(stream_slice._remaining_bytes, MAXSIZE)
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self.assertEqual(stream_slice._max_bytes, MAXSIZE)
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self.assertEqual(len(stream_slice), MAXSIZE)
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self.assertEqual(stream_slice.length, MAXSIZE)
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def test___nonzero___empty(self):
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from io import BytesIO
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CONTENT = b''
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MAXSIZE = 0
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stream = BytesIO(CONTENT)
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stream_slice = self._makeOne(stream, MAXSIZE)
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self.assertFalse(stream_slice)
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def test___nonzero___nonempty(self):
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from io import BytesIO
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CONTENT = b'CONTENT GOES HERE'
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MAXSIZE = 4
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stream = BytesIO(CONTENT)
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stream_slice = self._makeOne(stream, MAXSIZE)
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self.assertTrue(stream_slice)
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def test_read_exhausted(self):
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from io import BytesIO
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from six.moves import http_client
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CONTENT = b''
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MAXSIZE = 4
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stream = BytesIO(CONTENT)
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stream_slice = self._makeOne(stream, MAXSIZE)
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with self.assertRaises(http_client.IncompleteRead):
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stream_slice.read()
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def test_read_implicit_size(self):
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from io import BytesIO
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CONTENT = b'CONTENT GOES HERE'
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MAXSIZE = 4
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stream = BytesIO(CONTENT)
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stream_slice = self._makeOne(stream, MAXSIZE)
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self.assertEqual(stream_slice.read(), CONTENT[:MAXSIZE])
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self.assertEqual(stream_slice._remaining_bytes, 0)
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def test_read_explicit_size(self):
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from io import BytesIO
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CONTENT = b'CONTENT GOES HERE'
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MAXSIZE = 4
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SIZE = 3
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stream = BytesIO(CONTENT)
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stream_slice = self._makeOne(stream, MAXSIZE)
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self.assertEqual(stream_slice.read(SIZE), CONTENT[:SIZE])
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self.assertEqual(stream_slice._remaining_bytes, MAXSIZE - SIZE)
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