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Diffstat (limited to 'third_party/protobuf/3.4.0/csharp/src/Google.Protobuf.Test/CodedOutputStreamTest.cs')
| -rw-r--r-- | third_party/protobuf/3.4.0/csharp/src/Google.Protobuf.Test/CodedOutputStreamTest.cs | 426 |
1 files changed, 426 insertions, 0 deletions
diff --git a/third_party/protobuf/3.4.0/csharp/src/Google.Protobuf.Test/CodedOutputStreamTest.cs b/third_party/protobuf/3.4.0/csharp/src/Google.Protobuf.Test/CodedOutputStreamTest.cs new file mode 100644 index 0000000000..32926e930f --- /dev/null +++ b/third_party/protobuf/3.4.0/csharp/src/Google.Protobuf.Test/CodedOutputStreamTest.cs @@ -0,0 +1,426 @@ +#region Copyright notice and license +// Protocol Buffers - Google's data interchange format +// Copyright 2008 Google Inc. All rights reserved. +// https://developers.google.com/protocol-buffers/ +// +// 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. +#endregion + +using System; +using System.IO; +using Google.Protobuf.TestProtos; +using NUnit.Framework; + +namespace Google.Protobuf +{ + public class CodedOutputStreamTest + { + /// <summary> + /// Writes the given value using WriteRawVarint32() and WriteRawVarint64() and + /// checks that the result matches the given bytes + /// </summary> + private static void AssertWriteVarint(byte[] data, ulong value) + { + // Only do 32-bit write if the value fits in 32 bits. + if ((value >> 32) == 0) + { + MemoryStream rawOutput = new MemoryStream(); + CodedOutputStream output = new CodedOutputStream(rawOutput); + output.WriteRawVarint32((uint) value); + output.Flush(); + Assert.AreEqual(data, rawOutput.ToArray()); + // Also try computing size. + Assert.AreEqual(data.Length, CodedOutputStream.ComputeRawVarint32Size((uint) value)); + } + + { + MemoryStream rawOutput = new MemoryStream(); + CodedOutputStream output = new CodedOutputStream(rawOutput); + output.WriteRawVarint64(value); + output.Flush(); + Assert.AreEqual(data, rawOutput.ToArray()); + + // Also try computing size. + Assert.AreEqual(data.Length, CodedOutputStream.ComputeRawVarint64Size(value)); + } + + // Try different buffer sizes. + for (int bufferSize = 1; bufferSize <= 16; bufferSize *= 2) + { + // Only do 32-bit write if the value fits in 32 bits. + if ((value >> 32) == 0) + { + MemoryStream rawOutput = new MemoryStream(); + CodedOutputStream output = + new CodedOutputStream(rawOutput, bufferSize); + output.WriteRawVarint32((uint) value); + output.Flush(); + Assert.AreEqual(data, rawOutput.ToArray()); + } + + { + MemoryStream rawOutput = new MemoryStream(); + CodedOutputStream output = new CodedOutputStream(rawOutput, bufferSize); + output.WriteRawVarint64(value); + output.Flush(); + Assert.AreEqual(data, rawOutput.ToArray()); + } + } + } + + /// <summary> + /// Tests WriteRawVarint32() and WriteRawVarint64() + /// </summary> + [Test] + public void WriteVarint() + { + AssertWriteVarint(new byte[] {0x00}, 0); + AssertWriteVarint(new byte[] {0x01}, 1); + AssertWriteVarint(new byte[] {0x7f}, 127); + // 14882 + AssertWriteVarint(new byte[] {0xa2, 0x74}, (0x22 << 0) | (0x74 << 7)); + // 2961488830 + AssertWriteVarint(new byte[] {0xbe, 0xf7, 0x92, 0x84, 0x0b}, + (0x3e << 0) | (0x77 << 7) | (0x12 << 14) | (0x04 << 21) | + (0x0bL << 28)); + + // 64-bit + // 7256456126 + AssertWriteVarint(new byte[] {0xbe, 0xf7, 0x92, 0x84, 0x1b}, + (0x3e << 0) | (0x77 << 7) | (0x12 << 14) | (0x04 << 21) | + (0x1bL << 28)); + // 41256202580718336 + AssertWriteVarint( + new byte[] {0x80, 0xe6, 0xeb, 0x9c, 0xc3, 0xc9, 0xa4, 0x49}, + (0x00 << 0) | (0x66 << 7) | (0x6b << 14) | (0x1c << 21) | + (0x43UL << 28) | (0x49L << 35) | (0x24UL << 42) | (0x49UL << 49)); + // 11964378330978735131 + AssertWriteVarint( + new byte[] {0x9b, 0xa8, 0xf9, 0xc2, 0xbb, 0xd6, 0x80, 0x85, 0xa6, 0x01}, + unchecked((ulong) + ((0x1b << 0) | (0x28 << 7) | (0x79 << 14) | (0x42 << 21) | + (0x3bL << 28) | (0x56L << 35) | (0x00L << 42) | + (0x05L << 49) | (0x26L << 56) | (0x01L << 63)))); + } + + /// <summary> + /// Parses the given bytes using WriteRawLittleEndian32() and checks + /// that the result matches the given value. + /// </summary> + private static void AssertWriteLittleEndian32(byte[] data, uint value) + { + MemoryStream rawOutput = new MemoryStream(); + CodedOutputStream output = new CodedOutputStream(rawOutput); + output.WriteRawLittleEndian32(value); + output.Flush(); + Assert.AreEqual(data, rawOutput.ToArray()); + + // Try different buffer sizes. + for (int bufferSize = 1; bufferSize <= 16; bufferSize *= 2) + { + rawOutput = new MemoryStream(); + output = new CodedOutputStream(rawOutput, bufferSize); + output.WriteRawLittleEndian32(value); + output.Flush(); + Assert.AreEqual(data, rawOutput.ToArray()); + } + } + + /// <summary> + /// Parses the given bytes using WriteRawLittleEndian64() and checks + /// that the result matches the given value. + /// </summary> + private static void AssertWriteLittleEndian64(byte[] data, ulong value) + { + MemoryStream rawOutput = new MemoryStream(); + CodedOutputStream output = new CodedOutputStream(rawOutput); + output.WriteRawLittleEndian64(value); + output.Flush(); + Assert.AreEqual(data, rawOutput.ToArray()); + + // Try different block sizes. + for (int blockSize = 1; blockSize <= 16; blockSize *= 2) + { + rawOutput = new MemoryStream(); + output = new CodedOutputStream(rawOutput, blockSize); + output.WriteRawLittleEndian64(value); + output.Flush(); + Assert.AreEqual(data, rawOutput.ToArray()); + } + } + + /// <summary> + /// Tests writeRawLittleEndian32() and writeRawLittleEndian64(). + /// </summary> + [Test] + public void WriteLittleEndian() + { + AssertWriteLittleEndian32(new byte[] {0x78, 0x56, 0x34, 0x12}, 0x12345678); + AssertWriteLittleEndian32(new byte[] {0xf0, 0xde, 0xbc, 0x9a}, 0x9abcdef0); + + AssertWriteLittleEndian64( + new byte[] {0xf0, 0xde, 0xbc, 0x9a, 0x78, 0x56, 0x34, 0x12}, + 0x123456789abcdef0L); + AssertWriteLittleEndian64( + new byte[] {0x78, 0x56, 0x34, 0x12, 0xf0, 0xde, 0xbc, 0x9a}, + 0x9abcdef012345678UL); + } + + [Test] + public void WriteWholeMessage_VaryingBlockSizes() + { + TestAllTypes message = SampleMessages.CreateFullTestAllTypes(); + + byte[] rawBytes = message.ToByteArray(); + + // Try different block sizes. + for (int blockSize = 1; blockSize < 256; blockSize *= 2) + { + MemoryStream rawOutput = new MemoryStream(); + CodedOutputStream output = new CodedOutputStream(rawOutput, blockSize); + message.WriteTo(output); + output.Flush(); + Assert.AreEqual(rawBytes, rawOutput.ToArray()); + } + } + + [Test] + public void EncodeZigZag32() + { + Assert.AreEqual(0u, CodedOutputStream.EncodeZigZag32(0)); + Assert.AreEqual(1u, CodedOutputStream.EncodeZigZag32(-1)); + Assert.AreEqual(2u, CodedOutputStream.EncodeZigZag32(1)); + Assert.AreEqual(3u, CodedOutputStream.EncodeZigZag32(-2)); + Assert.AreEqual(0x7FFFFFFEu, CodedOutputStream.EncodeZigZag32(0x3FFFFFFF)); + Assert.AreEqual(0x7FFFFFFFu, CodedOutputStream.EncodeZigZag32(unchecked((int) 0xC0000000))); + Assert.AreEqual(0xFFFFFFFEu, CodedOutputStream.EncodeZigZag32(0x7FFFFFFF)); + Assert.AreEqual(0xFFFFFFFFu, CodedOutputStream.EncodeZigZag32(unchecked((int) 0x80000000))); + } + + [Test] + public void EncodeZigZag64() + { + Assert.AreEqual(0u, CodedOutputStream.EncodeZigZag64(0)); + Assert.AreEqual(1u, CodedOutputStream.EncodeZigZag64(-1)); + Assert.AreEqual(2u, CodedOutputStream.EncodeZigZag64(1)); + Assert.AreEqual(3u, CodedOutputStream.EncodeZigZag64(-2)); + Assert.AreEqual(0x000000007FFFFFFEuL, + CodedOutputStream.EncodeZigZag64(unchecked((long) 0x000000003FFFFFFFUL))); + Assert.AreEqual(0x000000007FFFFFFFuL, + CodedOutputStream.EncodeZigZag64(unchecked((long) 0xFFFFFFFFC0000000UL))); + Assert.AreEqual(0x00000000FFFFFFFEuL, + CodedOutputStream.EncodeZigZag64(unchecked((long) 0x000000007FFFFFFFUL))); + Assert.AreEqual(0x00000000FFFFFFFFuL, + CodedOutputStream.EncodeZigZag64(unchecked((long) 0xFFFFFFFF80000000UL))); + Assert.AreEqual(0xFFFFFFFFFFFFFFFEL, + CodedOutputStream.EncodeZigZag64(unchecked((long) 0x7FFFFFFFFFFFFFFFUL))); + Assert.AreEqual(0xFFFFFFFFFFFFFFFFL, + CodedOutputStream.EncodeZigZag64(unchecked((long) 0x8000000000000000UL))); + } + + [Test] + public void RoundTripZigZag32() + { + // Some easier-to-verify round-trip tests. The inputs (other than 0, 1, -1) + // were chosen semi-randomly via keyboard bashing. + Assert.AreEqual(0, CodedInputStream.DecodeZigZag32(CodedOutputStream.EncodeZigZag32(0))); + Assert.AreEqual(1, CodedInputStream.DecodeZigZag32(CodedOutputStream.EncodeZigZag32(1))); + Assert.AreEqual(-1, CodedInputStream.DecodeZigZag32(CodedOutputStream.EncodeZigZag32(-1))); + Assert.AreEqual(14927, CodedInputStream.DecodeZigZag32(CodedOutputStream.EncodeZigZag32(14927))); + Assert.AreEqual(-3612, CodedInputStream.DecodeZigZag32(CodedOutputStream.EncodeZigZag32(-3612))); + } + + [Test] + public void RoundTripZigZag64() + { + Assert.AreEqual(0, CodedInputStream.DecodeZigZag64(CodedOutputStream.EncodeZigZag64(0))); + Assert.AreEqual(1, CodedInputStream.DecodeZigZag64(CodedOutputStream.EncodeZigZag64(1))); + Assert.AreEqual(-1, CodedInputStream.DecodeZigZag64(CodedOutputStream.EncodeZigZag64(-1))); + Assert.AreEqual(14927, CodedInputStream.DecodeZigZag64(CodedOutputStream.EncodeZigZag64(14927))); + Assert.AreEqual(-3612, CodedInputStream.DecodeZigZag64(CodedOutputStream.EncodeZigZag64(-3612))); + + Assert.AreEqual(856912304801416L, + CodedInputStream.DecodeZigZag64(CodedOutputStream.EncodeZigZag64(856912304801416L))); + Assert.AreEqual(-75123905439571256L, + CodedInputStream.DecodeZigZag64(CodedOutputStream.EncodeZigZag64(-75123905439571256L))); + } + + [Test] + public void TestNegativeEnumNoTag() + { + Assert.AreEqual(10, CodedOutputStream.ComputeInt32Size(-2)); + Assert.AreEqual(10, CodedOutputStream.ComputeEnumSize((int) SampleEnum.NegativeValue)); + + byte[] bytes = new byte[10]; + CodedOutputStream output = new CodedOutputStream(bytes); + output.WriteEnum((int) SampleEnum.NegativeValue); + + Assert.AreEqual(0, output.SpaceLeft); + Assert.AreEqual("FE-FF-FF-FF-FF-FF-FF-FF-FF-01", BitConverter.ToString(bytes)); + } + + [Test] + public void TestCodedInputOutputPosition() + { + byte[] content = new byte[110]; + for (int i = 0; i < content.Length; i++) + content[i] = (byte)i; + + byte[] child = new byte[120]; + { + MemoryStream ms = new MemoryStream(child); + CodedOutputStream cout = new CodedOutputStream(ms, 20); + // Field 11: numeric value: 500 + cout.WriteTag(11, WireFormat.WireType.Varint); + Assert.AreEqual(1, cout.Position); + cout.WriteInt32(500); + Assert.AreEqual(3, cout.Position); + //Field 12: length delimited 120 bytes + cout.WriteTag(12, WireFormat.WireType.LengthDelimited); + Assert.AreEqual(4, cout.Position); + cout.WriteBytes(ByteString.CopyFrom(content)); + Assert.AreEqual(115, cout.Position); + // Field 13: fixed numeric value: 501 + cout.WriteTag(13, WireFormat.WireType.Fixed32); + Assert.AreEqual(116, cout.Position); + cout.WriteSFixed32(501); + Assert.AreEqual(120, cout.Position); + cout.Flush(); + } + + byte[] bytes = new byte[130]; + { + CodedOutputStream cout = new CodedOutputStream(bytes); + // Field 1: numeric value: 500 + cout.WriteTag(1, WireFormat.WireType.Varint); + Assert.AreEqual(1, cout.Position); + cout.WriteInt32(500); + Assert.AreEqual(3, cout.Position); + //Field 2: length delimited 120 bytes + cout.WriteTag(2, WireFormat.WireType.LengthDelimited); + Assert.AreEqual(4, cout.Position); + cout.WriteBytes(ByteString.CopyFrom(child)); + Assert.AreEqual(125, cout.Position); + // Field 3: fixed numeric value: 500 + cout.WriteTag(3, WireFormat.WireType.Fixed32); + Assert.AreEqual(126, cout.Position); + cout.WriteSFixed32(501); + Assert.AreEqual(130, cout.Position); + cout.Flush(); + } + // Now test Input stream: + { + CodedInputStream cin = new CodedInputStream(new MemoryStream(bytes), new byte[50], 0, 0, false); + Assert.AreEqual(0, cin.Position); + // Field 1: + uint tag = cin.ReadTag(); + Assert.AreEqual(1, tag >> 3); + Assert.AreEqual(1, cin.Position); + Assert.AreEqual(500, cin.ReadInt32()); + Assert.AreEqual(3, cin.Position); + //Field 2: + tag = cin.ReadTag(); + Assert.AreEqual(2, tag >> 3); + Assert.AreEqual(4, cin.Position); + int childlen = cin.ReadLength(); + Assert.AreEqual(120, childlen); + Assert.AreEqual(5, cin.Position); + int oldlimit = cin.PushLimit((int)childlen); + Assert.AreEqual(5, cin.Position); + // Now we are reading child message + { + // Field 11: numeric value: 500 + tag = cin.ReadTag(); + Assert.AreEqual(11, tag >> 3); + Assert.AreEqual(6, cin.Position); + Assert.AreEqual(500, cin.ReadInt32()); + Assert.AreEqual(8, cin.Position); + //Field 12: length delimited 120 bytes + tag = cin.ReadTag(); + Assert.AreEqual(12, tag >> 3); + Assert.AreEqual(9, cin.Position); + ByteString bstr = cin.ReadBytes(); + Assert.AreEqual(110, bstr.Length); + Assert.AreEqual((byte) 109, bstr[109]); + Assert.AreEqual(120, cin.Position); + // Field 13: fixed numeric value: 501 + tag = cin.ReadTag(); + Assert.AreEqual(13, tag >> 3); + // ROK - Previously broken here, this returned 126 failing to account for bufferSizeAfterLimit + Assert.AreEqual(121, cin.Position); + Assert.AreEqual(501, cin.ReadSFixed32()); + Assert.AreEqual(125, cin.Position); + Assert.IsTrue(cin.IsAtEnd); + } + cin.PopLimit(oldlimit); + Assert.AreEqual(125, cin.Position); + // Field 3: fixed numeric value: 501 + tag = cin.ReadTag(); + Assert.AreEqual(3, tag >> 3); + Assert.AreEqual(126, cin.Position); + Assert.AreEqual(501, cin.ReadSFixed32()); + Assert.AreEqual(130, cin.Position); + Assert.IsTrue(cin.IsAtEnd); + } + } + + [Test] + public void Dispose_DisposesUnderlyingStream() + { + var memoryStream = new MemoryStream(); + Assert.IsTrue(memoryStream.CanWrite); + using (var cos = new CodedOutputStream(memoryStream)) + { + cos.WriteRawByte(0); + Assert.AreEqual(0, memoryStream.Position); // Not flushed yet + } + Assert.AreEqual(1, memoryStream.ToArray().Length); // Flushed data from CodedOutputStream to MemoryStream + Assert.IsFalse(memoryStream.CanWrite); // Disposed + } + + [Test] + public void Dispose_WithLeaveOpen() + { + var memoryStream = new MemoryStream(); + Assert.IsTrue(memoryStream.CanWrite); + using (var cos = new CodedOutputStream(memoryStream, true)) + { + cos.WriteRawByte(0); + Assert.AreEqual(0, memoryStream.Position); // Not flushed yet + } + Assert.AreEqual(1, memoryStream.Position); // Flushed data from CodedOutputStream to MemoryStream + Assert.IsTrue(memoryStream.CanWrite); // We left the stream open + } + + [Test] + public void Dispose_FromByteArray() + { + var stream = new CodedOutputStream(new byte[10]); + stream.Dispose(); + } + } +}
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