| #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(); |
| } |
| } |
| } |
