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Diffstat (limited to 'python/google/protobuf/internal/decoder_test.py')
| -rwxr-xr-x | python/google/protobuf/internal/decoder_test.py | 256 |
1 files changed, 0 insertions, 256 deletions
diff --git a/python/google/protobuf/internal/decoder_test.py b/python/google/protobuf/internal/decoder_test.py deleted file mode 100755 index 98e46472..00000000 --- a/python/google/protobuf/internal/decoder_test.py +++ /dev/null @@ -1,256 +0,0 @@ -#! /usr/bin/python -# -# Protocol Buffers - Google's data interchange format -# Copyright 2008 Google Inc. All rights reserved. -# http://code.google.com/p/protobuf/ -# -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions are -# met: -# -# * Redistributions of source code must retain the above copyright -# notice, this list of conditions and the following disclaimer. -# * Redistributions in binary form must reproduce the above -# copyright notice, this list of conditions and the following disclaimer -# in the documentation and/or other materials provided with the -# distribution. -# * Neither the name of Google Inc. nor the names of its -# contributors may be used to endorse or promote products derived from -# this software without specific prior written permission. -# -# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -"""Test for google.protobuf.internal.decoder.""" - -__author__ = 'robinson@google.com (Will Robinson)' - -import struct -import unittest -from google.protobuf.internal import decoder -from google.protobuf.internal import encoder -from google.protobuf.internal import input_stream -from google.protobuf.internal import wire_format -from google.protobuf import message -import logging -import mox - - -class DecoderTest(unittest.TestCase): - - def setUp(self): - self.mox = mox.Mox() - self.mock_stream = self.mox.CreateMock(input_stream.InputStream) - self.mock_message = self.mox.CreateMock(message.Message) - - def testReadFieldNumberAndWireType(self): - # Test field numbers that will require various varint sizes. - for expected_field_number in (1, 15, 16, 2047, 2048): - for expected_wire_type in range(6): # Highest-numbered wiretype is 5. - e = encoder.Encoder() - e.AppendTag(expected_field_number, expected_wire_type) - s = e.ToString() - d = decoder.Decoder(s) - field_number, wire_type = d.ReadFieldNumberAndWireType() - self.assertEqual(expected_field_number, field_number) - self.assertEqual(expected_wire_type, wire_type) - - def ReadScalarTestHelper(self, test_name, decoder_method, expected_result, - expected_stream_method_name, - stream_method_return, *args): - """Helper for testReadScalars below. - - Calls one of the Decoder.Read*() methods and ensures that the results are - as expected. - - Args: - test_name: Name of this test, used for logging only. - decoder_method: Unbound decoder.Decoder method to call. - expected_result: Value we expect returned from decoder_method(). - expected_stream_method_name: (string) Name of the InputStream - method we expect Decoder to call to actually read the value - on the wire. - stream_method_return: Value our mocked-out stream method should - return to the decoder. - args: Additional arguments that we expect to be passed to the - stream method. - """ - logging.info('Testing %s scalar input.\n' - 'Calling %r(), and expecting that to call the ' - 'stream method %s(%r), which will return %r. Finally, ' - 'expecting the Decoder method to return %r'% ( - test_name, decoder_method, - expected_stream_method_name, args, stream_method_return, - expected_result)) - - d = decoder.Decoder('') - d._stream = self.mock_stream - if decoder_method in (decoder.Decoder.ReadString, - decoder.Decoder.ReadBytes): - self.mock_stream.ReadVarUInt32().AndReturn(len(stream_method_return)) - # We have to use names instead of methods to work around some - # mox weirdness. (ResetAll() is overzealous). - expected_stream_method = getattr(self.mock_stream, - expected_stream_method_name) - expected_stream_method(*args).AndReturn(stream_method_return) - - self.mox.ReplayAll() - result = decoder_method(d) - self.assertEqual(expected_result, result) - self.assert_(isinstance(result, type(expected_result))) - self.mox.VerifyAll() - self.mox.ResetAll() - - VAL = 1.125 # Perfectly representable as a float (no rounding error). - LITTLE_FLOAT_VAL = '\x00\x00\x90?' - LITTLE_DOUBLE_VAL = '\x00\x00\x00\x00\x00\x00\xf2?' - - def testReadScalars(self): - test_string = 'I can feel myself getting sutpider.' - scalar_tests = [ - ['int32', decoder.Decoder.ReadInt32, 0, 'ReadVarint32', 0], - ['int64', decoder.Decoder.ReadInt64, 0, 'ReadVarint64', 0], - ['uint32', decoder.Decoder.ReadUInt32, 0, 'ReadVarUInt32', 0], - ['uint64', decoder.Decoder.ReadUInt64, 0, 'ReadVarUInt64', 0], - ['fixed32', decoder.Decoder.ReadFixed32, 0xffffffff, - 'ReadLittleEndian32', 0xffffffff], - ['fixed64', decoder.Decoder.ReadFixed64, 0xffffffffffffffff, - 'ReadLittleEndian64', 0xffffffffffffffff], - ['sfixed32', decoder.Decoder.ReadSFixed32, long(-1), - 'ReadLittleEndian32', long(0xffffffff)], - ['sfixed64', decoder.Decoder.ReadSFixed64, long(-1), - 'ReadLittleEndian64', 0xffffffffffffffff], - ['float', decoder.Decoder.ReadFloat, self.VAL, - 'ReadBytes', self.LITTLE_FLOAT_VAL, 4], - ['double', decoder.Decoder.ReadDouble, self.VAL, - 'ReadBytes', self.LITTLE_DOUBLE_VAL, 8], - ['bool', decoder.Decoder.ReadBool, True, 'ReadVarUInt32', 1], - ['enum', decoder.Decoder.ReadEnum, 23, 'ReadVarUInt32', 23], - ['string', decoder.Decoder.ReadString, - unicode(test_string, 'utf-8'), 'ReadBytes', test_string, - len(test_string)], - ['utf8-string', decoder.Decoder.ReadString, - unicode(test_string, 'utf-8'), 'ReadBytes', test_string, - len(test_string)], - ['bytes', decoder.Decoder.ReadBytes, - test_string, 'ReadBytes', test_string, len(test_string)], - # We test zigzag decoding routines more extensively below. - ['sint32', decoder.Decoder.ReadSInt32, -1, 'ReadVarUInt32', 1], - ['sint64', decoder.Decoder.ReadSInt64, -1, 'ReadVarUInt64', 1], - ] - # Ensure that we're testing different Decoder methods and using - # different test names in all test cases above. - self.assertEqual(len(scalar_tests), len(set(t[0] for t in scalar_tests))) - self.assert_(len(scalar_tests) >= len(set(t[1] for t in scalar_tests))) - for args in scalar_tests: - self.ReadScalarTestHelper(*args) - - def testReadMessageInto(self): - length = 23 - def Test(simulate_error): - d = decoder.Decoder('') - d._stream = self.mock_stream - self.mock_stream.ReadVarUInt32().AndReturn(length) - sub_buffer = object() - self.mock_stream.GetSubBuffer(length).AndReturn(sub_buffer) - - if simulate_error: - self.mock_message.MergeFromString(sub_buffer).AndReturn(length - 1) - self.mox.ReplayAll() - self.assertRaises( - message.DecodeError, d.ReadMessageInto, self.mock_message) - else: - self.mock_message.MergeFromString(sub_buffer).AndReturn(length) - self.mock_stream.SkipBytes(length) - self.mox.ReplayAll() - d.ReadMessageInto(self.mock_message) - - self.mox.VerifyAll() - self.mox.ResetAll() - - Test(simulate_error=False) - Test(simulate_error=True) - - def testReadGroupInto_Success(self): - # Test both the empty and nonempty cases. - for num_bytes in (5, 0): - field_number = expected_field_number = 10 - d = decoder.Decoder('') - d._stream = self.mock_stream - sub_buffer = object() - self.mock_stream.GetSubBuffer().AndReturn(sub_buffer) - self.mock_message.MergeFromString(sub_buffer).AndReturn(num_bytes) - self.mock_stream.SkipBytes(num_bytes) - self.mock_stream.ReadVarUInt32().AndReturn(wire_format.PackTag( - field_number, wire_format.WIRETYPE_END_GROUP)) - self.mox.ReplayAll() - d.ReadGroupInto(expected_field_number, self.mock_message) - self.mox.VerifyAll() - self.mox.ResetAll() - - def ReadGroupInto_FailureTestHelper(self, bytes_read): - d = decoder.Decoder('') - d._stream = self.mock_stream - sub_buffer = object() - self.mock_stream.GetSubBuffer().AndReturn(sub_buffer) - self.mock_message.MergeFromString(sub_buffer).AndReturn(bytes_read) - return d - - def testReadGroupInto_NegativeBytesReported(self): - expected_field_number = 10 - d = self.ReadGroupInto_FailureTestHelper(bytes_read=-1) - self.mox.ReplayAll() - self.assertRaises(message.DecodeError, - d.ReadGroupInto, expected_field_number, - self.mock_message) - self.mox.VerifyAll() - - def testReadGroupInto_NoEndGroupTag(self): - field_number = expected_field_number = 10 - num_bytes = 5 - d = self.ReadGroupInto_FailureTestHelper(bytes_read=num_bytes) - self.mock_stream.SkipBytes(num_bytes) - # Right field number, wrong wire type. - self.mock_stream.ReadVarUInt32().AndReturn(wire_format.PackTag( - field_number, wire_format.WIRETYPE_LENGTH_DELIMITED)) - self.mox.ReplayAll() - self.assertRaises(message.DecodeError, - d.ReadGroupInto, expected_field_number, - self.mock_message) - self.mox.VerifyAll() - - def testReadGroupInto_WrongFieldNumberInEndGroupTag(self): - expected_field_number = 10 - field_number = expected_field_number + 1 - num_bytes = 5 - d = self.ReadGroupInto_FailureTestHelper(bytes_read=num_bytes) - self.mock_stream.SkipBytes(num_bytes) - # Wrong field number, right wire type. - self.mock_stream.ReadVarUInt32().AndReturn(wire_format.PackTag( - field_number, wire_format.WIRETYPE_END_GROUP)) - self.mox.ReplayAll() - self.assertRaises(message.DecodeError, - d.ReadGroupInto, expected_field_number, - self.mock_message) - self.mox.VerifyAll() - - def testSkipBytes(self): - d = decoder.Decoder('') - num_bytes = 1024 - self.mock_stream.SkipBytes(num_bytes) - d._stream = self.mock_stream - self.mox.ReplayAll() - d.SkipBytes(num_bytes) - self.mox.VerifyAll() - -if __name__ == '__main__': - unittest.main() |