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# Protocol Buffers - Google's data interchange format
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# Copyright 2008 Google Inc.
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# Copyright 2008 Google Inc. All rights reserved.
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# http://code.google.com/p/protobuf/
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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# http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following disclaimer
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# in the documentation and/or other materials provided with the
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# * Neither the name of Google Inc. nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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"""Test for google.protobuf.internal.input_stream."""
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def testEndOfStream(self):
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stream = input_stream.InputStream('abcd')
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self.assertFalse(stream.EndOfStream())
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self.assertEqual('abcd', stream.ReadString(10))
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self.assertEqual('abcd', stream.ReadBytes(10))
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self.assertTrue(stream.EndOfStream())
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def testPosition(self):
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stream = input_stream.InputStream('abcd')
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self.assertEqual(0, stream.Position())
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self.assertEqual(0, stream.Position()) # No side-effects.
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self.assertEqual(1, stream.Position())
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self.assertEqual(2, stream.Position())
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self.assertEqual(4, stream.Position()) # Can't go past end of stream.
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def testGetSubBuffer(self):
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stream.SkipBytes(1)
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self.assertRaises(message.DecodeError, stream.SkipBytes, -1)
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def testReadString(self):
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def testReadBytes(self):
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# Also test going past the total stream length.
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for i in range(len(s) + 10):
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stream = input_stream.InputStream(s)
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self.assertEqual(s[:i], stream.ReadString(i))
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self.assertEqual(s[:i], stream.ReadBytes(i))
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self.assertEqual(min(i, len(s)), stream.Position())
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stream = input_stream.InputStream(s)
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self.assertRaises(message.DecodeError, stream.ReadString, -1)
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self.assertRaises(message.DecodeError, stream.ReadBytes, -1)
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def EnsureFailureOnEmptyStream(self, input_stream_method):
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"""Helper for integer-parsing tests below.