reformatted all code to .NET standard formatting
diff --git a/src/ProtocolBuffers.Test/CodedInputStreamTest.cs b/src/ProtocolBuffers.Test/CodedInputStreamTest.cs
index 037e9a0..878febe 100644
--- a/src/ProtocolBuffers.Test/CodedInputStreamTest.cs
+++ b/src/ProtocolBuffers.Test/CodedInputStreamTest.cs
@@ -1,459 +1,526 @@
-#region Copyright notice and license
-// Protocol Buffers - Google's data interchange format
-// Copyright 2008 Google Inc. All rights reserved.
-// http://github.com/jskeet/dotnet-protobufs/
-// Original C++/Java/Python code:
-// 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.
-#endregion
-
-using System;
-using System.IO;
-using Google.ProtocolBuffers.TestProtos;
-using NUnit.Framework;
-using System.Diagnostics;
-
-namespace Google.ProtocolBuffers {
- [TestFixture]
- public class CodedInputStreamTest {
-
- /// <summary>
- /// Helper to construct a byte array from a bunch of bytes. The inputs are
- /// actually ints so that I can use hex notation and not get stupid errors
- /// about precision.
- /// </summary>
- private static byte[] Bytes(params int[] bytesAsInts) {
- byte[] bytes = new byte[bytesAsInts.Length];
- for (int i = 0; i < bytesAsInts.Length; i++) {
- bytes[i] = (byte)bytesAsInts[i];
- }
- return bytes;
- }
-
- /// <summary>
- /// Parses the given bytes using ReadRawVarint32() and ReadRawVarint64() and
- /// </summary>
- private static void AssertReadVarint(byte[] data, ulong value) {
- CodedInputStream input = CodedInputStream.CreateInstance(data);
- Assert.AreEqual((uint)value, input.ReadRawVarint32());
-
- input = CodedInputStream.CreateInstance(data);
- Assert.AreEqual(value, input.ReadRawVarint64());
- Assert.IsTrue(input.IsAtEnd);
-
- // Try different block sizes.
- for (int bufferSize = 1; bufferSize <= 16; bufferSize *= 2) {
- input = CodedInputStream.CreateInstance(new SmallBlockInputStream(data, bufferSize));
- Assert.AreEqual((uint)value, input.ReadRawVarint32());
-
- input = CodedInputStream.CreateInstance(new SmallBlockInputStream(data, bufferSize));
- Assert.AreEqual(value, input.ReadRawVarint64());
- Assert.IsTrue(input.IsAtEnd);
- }
-
- // Try reading directly from a MemoryStream. We want to verify that it
- // doesn't read past the end of the input, so write an extra byte - this
- // lets us test the position at the end.
- MemoryStream memoryStream = new MemoryStream();
- memoryStream.Write(data, 0, data.Length);
- memoryStream.WriteByte(0);
- memoryStream.Position = 0;
- Assert.AreEqual((uint)value, CodedInputStream.ReadRawVarint32(memoryStream));
- Assert.AreEqual(data.Length, memoryStream.Position);
- }
-
- /// <summary>
- /// Parses the given bytes using ReadRawVarint32() and ReadRawVarint64() and
- /// expects them to fail with an InvalidProtocolBufferException whose
- /// description matches the given one.
- /// </summary>
- private static void AssertReadVarintFailure(InvalidProtocolBufferException expected, byte[] data) {
- CodedInputStream input = CodedInputStream.CreateInstance(data);
- try {
- input.ReadRawVarint32();
- Assert.Fail("Should have thrown an exception.");
- } catch (InvalidProtocolBufferException e) {
- Assert.AreEqual(expected.Message, e.Message);
- }
-
- input = CodedInputStream.CreateInstance(data);
- try {
- input.ReadRawVarint64();
- Assert.Fail("Should have thrown an exception.");
- } catch (InvalidProtocolBufferException e) {
- Assert.AreEqual(expected.Message, e.Message);
- }
-
- // Make sure we get the same error when reading directly from a Stream.
- try {
- CodedInputStream.ReadRawVarint32(new MemoryStream(data));
- Assert.Fail("Should have thrown an exception.");
- } catch (InvalidProtocolBufferException e) {
- Assert.AreEqual(expected.Message, e.Message);
- }
- }
-
- [Test]
- public void ReadVarint() {
- AssertReadVarint(Bytes(0x00), 0);
- AssertReadVarint(Bytes(0x01), 1);
- AssertReadVarint(Bytes(0x7f), 127);
- // 14882
- AssertReadVarint(Bytes(0xa2, 0x74), (0x22 << 0) | (0x74 << 7));
- // 2961488830
- AssertReadVarint(Bytes(0xbe, 0xf7, 0x92, 0x84, 0x0b),
- (0x3e << 0) | (0x77 << 7) | (0x12 << 14) | (0x04 << 21) |
- (0x0bL << 28));
-
- // 64-bit
- // 7256456126
- AssertReadVarint(Bytes(0xbe, 0xf7, 0x92, 0x84, 0x1b),
- (0x3e << 0) | (0x77 << 7) | (0x12 << 14) | (0x04 << 21) |
- (0x1bL << 28));
- // 41256202580718336
- AssertReadVarint(Bytes(0x80, 0xe6, 0xeb, 0x9c, 0xc3, 0xc9, 0xa4, 0x49),
- (0x00 << 0) | (0x66 << 7) | (0x6b << 14) | (0x1c << 21) |
- (0x43L << 28) | (0x49L << 35) | (0x24L << 42) | (0x49L << 49));
- // 11964378330978735131
- AssertReadVarint(Bytes(0x9b, 0xa8, 0xf9, 0xc2, 0xbb, 0xd6, 0x80, 0x85, 0xa6, 0x01),
- (0x1b << 0) | (0x28 << 7) | (0x79 << 14) | (0x42 << 21) |
- (0x3bUL << 28) | (0x56UL << 35) | (0x00UL << 42) |
- (0x05UL << 49) | (0x26UL << 56) | (0x01UL << 63));
-
- // Failures
- AssertReadVarintFailure(
- InvalidProtocolBufferException.MalformedVarint(),
- Bytes(0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
- 0x00));
- AssertReadVarintFailure(
- InvalidProtocolBufferException.TruncatedMessage(),
- Bytes(0x80));
- }
-
- /// <summary>
- /// Parses the given bytes using ReadRawLittleEndian32() and checks
- /// that the result matches the given value.
- /// </summary>
- private static void AssertReadLittleEndian32(byte[] data, uint value) {
- CodedInputStream input = CodedInputStream.CreateInstance(data);
- Assert.AreEqual(value, input.ReadRawLittleEndian32());
- Assert.IsTrue(input.IsAtEnd);
-
- // Try different block sizes.
- for (int blockSize = 1; blockSize <= 16; blockSize *= 2) {
- input = CodedInputStream.CreateInstance(
- new SmallBlockInputStream(data, blockSize));
- Assert.AreEqual(value, input.ReadRawLittleEndian32());
- Assert.IsTrue(input.IsAtEnd);
- }
- }
-
- /// <summary>
- /// Parses the given bytes using ReadRawLittleEndian64() and checks
- /// that the result matches the given value.
- /// </summary>
- private static void AssertReadLittleEndian64(byte[] data, ulong value) {
- CodedInputStream input = CodedInputStream.CreateInstance(data);
- Assert.AreEqual(value, input.ReadRawLittleEndian64());
- Assert.IsTrue(input.IsAtEnd);
-
- // Try different block sizes.
- for (int blockSize = 1; blockSize <= 16; blockSize *= 2) {
- input = CodedInputStream.CreateInstance(
- new SmallBlockInputStream(data, blockSize));
- Assert.AreEqual(value, input.ReadRawLittleEndian64());
- Assert.IsTrue(input.IsAtEnd);
- }
- }
-
- [Test]
- public void ReadLittleEndian() {
- AssertReadLittleEndian32(Bytes(0x78, 0x56, 0x34, 0x12), 0x12345678);
- AssertReadLittleEndian32(Bytes(0xf0, 0xde, 0xbc, 0x9a), 0x9abcdef0);
-
- AssertReadLittleEndian64(Bytes(0xf0, 0xde, 0xbc, 0x9a, 0x78, 0x56, 0x34, 0x12),
- 0x123456789abcdef0L);
- AssertReadLittleEndian64(
- Bytes(0x78, 0x56, 0x34, 0x12, 0xf0, 0xde, 0xbc, 0x9a), 0x9abcdef012345678UL);
- }
-
- [Test]
- public void DecodeZigZag32() {
- Assert.AreEqual(0, CodedInputStream.DecodeZigZag32(0));
- Assert.AreEqual(-1, CodedInputStream.DecodeZigZag32(1));
- Assert.AreEqual(1, CodedInputStream.DecodeZigZag32(2));
- Assert.AreEqual(-2, CodedInputStream.DecodeZigZag32(3));
- Assert.AreEqual(0x3FFFFFFF, CodedInputStream.DecodeZigZag32(0x7FFFFFFE));
- Assert.AreEqual(unchecked((int)0xC0000000), CodedInputStream.DecodeZigZag32(0x7FFFFFFF));
- Assert.AreEqual(0x7FFFFFFF, CodedInputStream.DecodeZigZag32(0xFFFFFFFE));
- Assert.AreEqual(unchecked((int)0x80000000), CodedInputStream.DecodeZigZag32(0xFFFFFFFF));
- }
-
- [Test]
- public void DecodeZigZag64() {
- Assert.AreEqual(0, CodedInputStream.DecodeZigZag64(0));
- Assert.AreEqual(-1, CodedInputStream.DecodeZigZag64(1));
- Assert.AreEqual(1, CodedInputStream.DecodeZigZag64(2));
- Assert.AreEqual(-2, CodedInputStream.DecodeZigZag64(3));
- Assert.AreEqual(0x000000003FFFFFFFL, CodedInputStream.DecodeZigZag64(0x000000007FFFFFFEL));
- Assert.AreEqual(unchecked((long)0xFFFFFFFFC0000000L), CodedInputStream.DecodeZigZag64(0x000000007FFFFFFFL));
- Assert.AreEqual(0x000000007FFFFFFFL, CodedInputStream.DecodeZigZag64(0x00000000FFFFFFFEL));
- Assert.AreEqual(unchecked((long)0xFFFFFFFF80000000L), CodedInputStream.DecodeZigZag64(0x00000000FFFFFFFFL));
- Assert.AreEqual(0x7FFFFFFFFFFFFFFFL, CodedInputStream.DecodeZigZag64(0xFFFFFFFFFFFFFFFEL));
- Assert.AreEqual(unchecked((long)0x8000000000000000L), CodedInputStream.DecodeZigZag64(0xFFFFFFFFFFFFFFFFL));
- }
-
- [Test]
- public void ReadWholeMessage() {
- TestAllTypes message = TestUtil.GetAllSet();
-
- byte[] rawBytes = message.ToByteArray();
- Assert.AreEqual(rawBytes.Length, message.SerializedSize);
- TestAllTypes message2 = TestAllTypes.ParseFrom(rawBytes);
- TestUtil.AssertAllFieldsSet(message2);
-
- // Try different block sizes.
- for (int blockSize = 1; blockSize < 256; blockSize *= 2) {
- message2 = TestAllTypes.ParseFrom(new SmallBlockInputStream(rawBytes, blockSize));
- TestUtil.AssertAllFieldsSet(message2);
- }
- }
-
- [Test]
- public void SkipWholeMessage() {
- TestAllTypes message = TestUtil.GetAllSet();
- byte[] rawBytes = message.ToByteArray();
-
- // Create two parallel inputs. Parse one as unknown fields while using
- // skipField() to skip each field on the other. Expect the same tags.
- CodedInputStream input1 = CodedInputStream.CreateInstance(rawBytes);
- CodedInputStream input2 = CodedInputStream.CreateInstance(rawBytes);
- UnknownFieldSet.Builder unknownFields = UnknownFieldSet.CreateBuilder();
-
- while (true) {
- uint tag = input1.ReadTag();
- Assert.AreEqual(tag, input2.ReadTag());
- if (tag == 0) {
- break;
- }
- unknownFields.MergeFieldFrom(tag, input1);
- input2.SkipField(tag);
- }
- }
-
- /// <summary>
- /// Test that a bug in SkipRawBytes has been fixed: if the skip
- /// skips exactly up to a limit, this should bnot break things
- /// </summary>
- [Test]
- public void SkipRawBytesBug() {
- byte[] rawBytes = new byte[] { 1, 2 };
- CodedInputStream input = CodedInputStream.CreateInstance(rawBytes);
-
- int limit = input.PushLimit(1);
- input.SkipRawBytes(1);
- input.PopLimit(limit);
- Assert.AreEqual(2, input.ReadRawByte());
- }
-
- public void ReadHugeBlob() {
- // Allocate and initialize a 1MB blob.
- byte[] blob = new byte[1 << 20];
- for (int i = 0; i < blob.Length; i++) {
- blob[i] = (byte)i;
- }
-
- // Make a message containing it.
- TestAllTypes.Builder builder = TestAllTypes.CreateBuilder();
- TestUtil.SetAllFields(builder);
- builder.SetOptionalBytes(ByteString.CopyFrom(blob));
- TestAllTypes message = builder.Build();
-
- // Serialize and parse it. Make sure to parse from an InputStream, not
- // directly from a ByteString, so that CodedInputStream uses buffered
- // reading.
- TestAllTypes message2 = TestAllTypes.ParseFrom(message.ToByteString().CreateCodedInput());
-
- Assert.AreEqual(message.OptionalBytes, message2.OptionalBytes);
-
- // Make sure all the other fields were parsed correctly.
- TestAllTypes message3 = TestAllTypes.CreateBuilder(message2)
- .SetOptionalBytes(TestUtil.GetAllSet().OptionalBytes)
- .Build();
- TestUtil.AssertAllFieldsSet(message3);
- }
-
- [Test]
- public void ReadMaliciouslyLargeBlob() {
- MemoryStream ms = new MemoryStream();
- CodedOutputStream output = CodedOutputStream.CreateInstance(ms);
-
- uint tag = WireFormat.MakeTag(1, WireFormat.WireType.LengthDelimited);
- output.WriteRawVarint32(tag);
- output.WriteRawVarint32(0x7FFFFFFF);
- output.WriteRawBytes(new byte[32]); // Pad with a few random bytes.
- output.Flush();
- ms.Position = 0;
-
- CodedInputStream input = CodedInputStream.CreateInstance(ms);
- Assert.AreEqual(tag, input.ReadTag());
-
- try {
- input.ReadBytes();
- Assert.Fail("Should have thrown an exception!");
- } catch (InvalidProtocolBufferException) {
- // success.
- }
- }
-
- private static TestRecursiveMessage MakeRecursiveMessage(int depth) {
- if (depth == 0) {
- return TestRecursiveMessage.CreateBuilder().SetI(5).Build();
- } else {
- return TestRecursiveMessage.CreateBuilder()
- .SetA(MakeRecursiveMessage(depth - 1)).Build();
- }
- }
-
- private static void AssertMessageDepth(TestRecursiveMessage message, int depth) {
- if (depth == 0) {
- Assert.IsFalse(message.HasA);
- Assert.AreEqual(5, message.I);
- } else {
- Assert.IsTrue(message.HasA);
- AssertMessageDepth(message.A, depth - 1);
- }
- }
-
- [Test]
- public void MaliciousRecursion() {
- ByteString data64 = MakeRecursiveMessage(64).ToByteString();
- ByteString data65 = MakeRecursiveMessage(65).ToByteString();
-
- AssertMessageDepth(TestRecursiveMessage.ParseFrom(data64), 64);
-
- try {
- TestRecursiveMessage.ParseFrom(data65);
- Assert.Fail("Should have thrown an exception!");
- } catch (InvalidProtocolBufferException) {
- // success.
- }
-
- CodedInputStream input = data64.CreateCodedInput();
- input.SetRecursionLimit(8);
- try {
- TestRecursiveMessage.ParseFrom(input);
- Assert.Fail("Should have thrown an exception!");
- } catch (InvalidProtocolBufferException) {
- // success.
- }
- }
-
- [Test]
- public void SizeLimit() {
- // Have to use a Stream rather than ByteString.CreateCodedInput as SizeLimit doesn't
- // apply to the latter case.
- MemoryStream ms = new MemoryStream(TestUtil.GetAllSet().ToByteString().ToByteArray());
- CodedInputStream input = CodedInputStream.CreateInstance(ms);
- input.SetSizeLimit(16);
-
- try {
- TestAllTypes.ParseFrom(input);
- Assert.Fail("Should have thrown an exception!");
- } catch (InvalidProtocolBufferException) {
- // success.
- }
- }
-
- [Test]
- public void ResetSizeCounter() {
- CodedInputStream input = CodedInputStream.CreateInstance(
- new SmallBlockInputStream(new byte[256], 8));
- input.SetSizeLimit(16);
- input.ReadRawBytes(16);
-
- try {
- input.ReadRawByte();
- Assert.Fail("Should have thrown an exception!");
- } catch (InvalidProtocolBufferException) {
- // Success.
- }
-
- input.ResetSizeCounter();
- input.ReadRawByte(); // No exception thrown.
-
- try {
- input.ReadRawBytes(16); // Hits limit again.
- Assert.Fail("Should have thrown an exception!");
- } catch (InvalidProtocolBufferException) {
- // Success.
- }
- }
-
- /// <summary>
- /// Tests that if we read an string that contains invalid UTF-8, no exception
- /// is thrown. Instead, the invalid bytes are replaced with the Unicode
- /// "replacement character" U+FFFD.
- /// </summary>
- [Test]
- public void ReadInvalidUtf8() {
- MemoryStream ms = new MemoryStream();
- CodedOutputStream output = CodedOutputStream.CreateInstance(ms);
-
- uint tag = WireFormat.MakeTag(1, WireFormat.WireType.LengthDelimited);
- output.WriteRawVarint32(tag);
- output.WriteRawVarint32(1);
- output.WriteRawBytes(new byte[] { 0x80 });
- output.Flush();
- ms.Position = 0;
-
- CodedInputStream input = CodedInputStream.CreateInstance(ms);
- Assert.AreEqual(tag, input.ReadTag());
- string text = input.ReadString();
- Assert.AreEqual('\ufffd', text[0]);
- }
-
- /// <summary>
- /// A stream which limits the number of bytes it reads at a time.
- /// We use this to make sure that CodedInputStream doesn't screw up when
- /// reading in small blocks.
- /// </summary>
- private sealed class SmallBlockInputStream : MemoryStream {
- private readonly int blockSize;
-
- public SmallBlockInputStream(byte[] data, int blockSize)
- : base(data) {
- this.blockSize = blockSize;
- }
-
- public override int Read(byte[] buffer, int offset, int count) {
- return base.Read(buffer, offset, Math.Min(count, blockSize));
- }
- }
- }
-}
+#region Copyright notice and license
+
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc. All rights reserved.
+// http://github.com/jskeet/dotnet-protobufs/
+// Original C++/Java/Python code:
+// 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.
+
+#endregion
+
+using System;
+using System.IO;
+using Google.ProtocolBuffers.TestProtos;
+using NUnit.Framework;
+using System.Diagnostics;
+
+namespace Google.ProtocolBuffers
+{
+ [TestFixture]
+ public class CodedInputStreamTest
+ {
+ /// <summary>
+ /// Helper to construct a byte array from a bunch of bytes. The inputs are
+ /// actually ints so that I can use hex notation and not get stupid errors
+ /// about precision.
+ /// </summary>
+ private static byte[] Bytes(params int[] bytesAsInts)
+ {
+ byte[] bytes = new byte[bytesAsInts.Length];
+ for (int i = 0; i < bytesAsInts.Length; i++)
+ {
+ bytes[i] = (byte) bytesAsInts[i];
+ }
+ return bytes;
+ }
+
+ /// <summary>
+ /// Parses the given bytes using ReadRawVarint32() and ReadRawVarint64() and
+ /// </summary>
+ private static void AssertReadVarint(byte[] data, ulong value)
+ {
+ CodedInputStream input = CodedInputStream.CreateInstance(data);
+ Assert.AreEqual((uint) value, input.ReadRawVarint32());
+
+ input = CodedInputStream.CreateInstance(data);
+ Assert.AreEqual(value, input.ReadRawVarint64());
+ Assert.IsTrue(input.IsAtEnd);
+
+ // Try different block sizes.
+ for (int bufferSize = 1; bufferSize <= 16; bufferSize *= 2)
+ {
+ input = CodedInputStream.CreateInstance(new SmallBlockInputStream(data, bufferSize));
+ Assert.AreEqual((uint) value, input.ReadRawVarint32());
+
+ input = CodedInputStream.CreateInstance(new SmallBlockInputStream(data, bufferSize));
+ Assert.AreEqual(value, input.ReadRawVarint64());
+ Assert.IsTrue(input.IsAtEnd);
+ }
+
+ // Try reading directly from a MemoryStream. We want to verify that it
+ // doesn't read past the end of the input, so write an extra byte - this
+ // lets us test the position at the end.
+ MemoryStream memoryStream = new MemoryStream();
+ memoryStream.Write(data, 0, data.Length);
+ memoryStream.WriteByte(0);
+ memoryStream.Position = 0;
+ Assert.AreEqual((uint) value, CodedInputStream.ReadRawVarint32(memoryStream));
+ Assert.AreEqual(data.Length, memoryStream.Position);
+ }
+
+ /// <summary>
+ /// Parses the given bytes using ReadRawVarint32() and ReadRawVarint64() and
+ /// expects them to fail with an InvalidProtocolBufferException whose
+ /// description matches the given one.
+ /// </summary>
+ private static void AssertReadVarintFailure(InvalidProtocolBufferException expected, byte[] data)
+ {
+ CodedInputStream input = CodedInputStream.CreateInstance(data);
+ try
+ {
+ input.ReadRawVarint32();
+ Assert.Fail("Should have thrown an exception.");
+ }
+ catch (InvalidProtocolBufferException e)
+ {
+ Assert.AreEqual(expected.Message, e.Message);
+ }
+
+ input = CodedInputStream.CreateInstance(data);
+ try
+ {
+ input.ReadRawVarint64();
+ Assert.Fail("Should have thrown an exception.");
+ }
+ catch (InvalidProtocolBufferException e)
+ {
+ Assert.AreEqual(expected.Message, e.Message);
+ }
+
+ // Make sure we get the same error when reading directly from a Stream.
+ try
+ {
+ CodedInputStream.ReadRawVarint32(new MemoryStream(data));
+ Assert.Fail("Should have thrown an exception.");
+ }
+ catch (InvalidProtocolBufferException e)
+ {
+ Assert.AreEqual(expected.Message, e.Message);
+ }
+ }
+
+ [Test]
+ public void ReadVarint()
+ {
+ AssertReadVarint(Bytes(0x00), 0);
+ AssertReadVarint(Bytes(0x01), 1);
+ AssertReadVarint(Bytes(0x7f), 127);
+ // 14882
+ AssertReadVarint(Bytes(0xa2, 0x74), (0x22 << 0) | (0x74 << 7));
+ // 2961488830
+ AssertReadVarint(Bytes(0xbe, 0xf7, 0x92, 0x84, 0x0b),
+ (0x3e << 0) | (0x77 << 7) | (0x12 << 14) | (0x04 << 21) |
+ (0x0bL << 28));
+
+ // 64-bit
+ // 7256456126
+ AssertReadVarint(Bytes(0xbe, 0xf7, 0x92, 0x84, 0x1b),
+ (0x3e << 0) | (0x77 << 7) | (0x12 << 14) | (0x04 << 21) |
+ (0x1bL << 28));
+ // 41256202580718336
+ AssertReadVarint(Bytes(0x80, 0xe6, 0xeb, 0x9c, 0xc3, 0xc9, 0xa4, 0x49),
+ (0x00 << 0) | (0x66 << 7) | (0x6b << 14) | (0x1c << 21) |
+ (0x43L << 28) | (0x49L << 35) | (0x24L << 42) | (0x49L << 49));
+ // 11964378330978735131
+ AssertReadVarint(Bytes(0x9b, 0xa8, 0xf9, 0xc2, 0xbb, 0xd6, 0x80, 0x85, 0xa6, 0x01),
+ (0x1b << 0) | (0x28 << 7) | (0x79 << 14) | (0x42 << 21) |
+ (0x3bUL << 28) | (0x56UL << 35) | (0x00UL << 42) |
+ (0x05UL << 49) | (0x26UL << 56) | (0x01UL << 63));
+
+ // Failures
+ AssertReadVarintFailure(
+ InvalidProtocolBufferException.MalformedVarint(),
+ Bytes(0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x00));
+ AssertReadVarintFailure(
+ InvalidProtocolBufferException.TruncatedMessage(),
+ Bytes(0x80));
+ }
+
+ /// <summary>
+ /// Parses the given bytes using ReadRawLittleEndian32() and checks
+ /// that the result matches the given value.
+ /// </summary>
+ private static void AssertReadLittleEndian32(byte[] data, uint value)
+ {
+ CodedInputStream input = CodedInputStream.CreateInstance(data);
+ Assert.AreEqual(value, input.ReadRawLittleEndian32());
+ Assert.IsTrue(input.IsAtEnd);
+
+ // Try different block sizes.
+ for (int blockSize = 1; blockSize <= 16; blockSize *= 2)
+ {
+ input = CodedInputStream.CreateInstance(
+ new SmallBlockInputStream(data, blockSize));
+ Assert.AreEqual(value, input.ReadRawLittleEndian32());
+ Assert.IsTrue(input.IsAtEnd);
+ }
+ }
+
+ /// <summary>
+ /// Parses the given bytes using ReadRawLittleEndian64() and checks
+ /// that the result matches the given value.
+ /// </summary>
+ private static void AssertReadLittleEndian64(byte[] data, ulong value)
+ {
+ CodedInputStream input = CodedInputStream.CreateInstance(data);
+ Assert.AreEqual(value, input.ReadRawLittleEndian64());
+ Assert.IsTrue(input.IsAtEnd);
+
+ // Try different block sizes.
+ for (int blockSize = 1; blockSize <= 16; blockSize *= 2)
+ {
+ input = CodedInputStream.CreateInstance(
+ new SmallBlockInputStream(data, blockSize));
+ Assert.AreEqual(value, input.ReadRawLittleEndian64());
+ Assert.IsTrue(input.IsAtEnd);
+ }
+ }
+
+ [Test]
+ public void ReadLittleEndian()
+ {
+ AssertReadLittleEndian32(Bytes(0x78, 0x56, 0x34, 0x12), 0x12345678);
+ AssertReadLittleEndian32(Bytes(0xf0, 0xde, 0xbc, 0x9a), 0x9abcdef0);
+
+ AssertReadLittleEndian64(Bytes(0xf0, 0xde, 0xbc, 0x9a, 0x78, 0x56, 0x34, 0x12),
+ 0x123456789abcdef0L);
+ AssertReadLittleEndian64(
+ Bytes(0x78, 0x56, 0x34, 0x12, 0xf0, 0xde, 0xbc, 0x9a), 0x9abcdef012345678UL);
+ }
+
+ [Test]
+ public void DecodeZigZag32()
+ {
+ Assert.AreEqual(0, CodedInputStream.DecodeZigZag32(0));
+ Assert.AreEqual(-1, CodedInputStream.DecodeZigZag32(1));
+ Assert.AreEqual(1, CodedInputStream.DecodeZigZag32(2));
+ Assert.AreEqual(-2, CodedInputStream.DecodeZigZag32(3));
+ Assert.AreEqual(0x3FFFFFFF, CodedInputStream.DecodeZigZag32(0x7FFFFFFE));
+ Assert.AreEqual(unchecked((int) 0xC0000000), CodedInputStream.DecodeZigZag32(0x7FFFFFFF));
+ Assert.AreEqual(0x7FFFFFFF, CodedInputStream.DecodeZigZag32(0xFFFFFFFE));
+ Assert.AreEqual(unchecked((int) 0x80000000), CodedInputStream.DecodeZigZag32(0xFFFFFFFF));
+ }
+
+ [Test]
+ public void DecodeZigZag64()
+ {
+ Assert.AreEqual(0, CodedInputStream.DecodeZigZag64(0));
+ Assert.AreEqual(-1, CodedInputStream.DecodeZigZag64(1));
+ Assert.AreEqual(1, CodedInputStream.DecodeZigZag64(2));
+ Assert.AreEqual(-2, CodedInputStream.DecodeZigZag64(3));
+ Assert.AreEqual(0x000000003FFFFFFFL, CodedInputStream.DecodeZigZag64(0x000000007FFFFFFEL));
+ Assert.AreEqual(unchecked((long) 0xFFFFFFFFC0000000L), CodedInputStream.DecodeZigZag64(0x000000007FFFFFFFL));
+ Assert.AreEqual(0x000000007FFFFFFFL, CodedInputStream.DecodeZigZag64(0x00000000FFFFFFFEL));
+ Assert.AreEqual(unchecked((long) 0xFFFFFFFF80000000L), CodedInputStream.DecodeZigZag64(0x00000000FFFFFFFFL));
+ Assert.AreEqual(0x7FFFFFFFFFFFFFFFL, CodedInputStream.DecodeZigZag64(0xFFFFFFFFFFFFFFFEL));
+ Assert.AreEqual(unchecked((long) 0x8000000000000000L), CodedInputStream.DecodeZigZag64(0xFFFFFFFFFFFFFFFFL));
+ }
+
+ [Test]
+ public void ReadWholeMessage()
+ {
+ TestAllTypes message = TestUtil.GetAllSet();
+
+ byte[] rawBytes = message.ToByteArray();
+ Assert.AreEqual(rawBytes.Length, message.SerializedSize);
+ TestAllTypes message2 = TestAllTypes.ParseFrom(rawBytes);
+ TestUtil.AssertAllFieldsSet(message2);
+
+ // Try different block sizes.
+ for (int blockSize = 1; blockSize < 256; blockSize *= 2)
+ {
+ message2 = TestAllTypes.ParseFrom(new SmallBlockInputStream(rawBytes, blockSize));
+ TestUtil.AssertAllFieldsSet(message2);
+ }
+ }
+
+ [Test]
+ public void SkipWholeMessage()
+ {
+ TestAllTypes message = TestUtil.GetAllSet();
+ byte[] rawBytes = message.ToByteArray();
+
+ // Create two parallel inputs. Parse one as unknown fields while using
+ // skipField() to skip each field on the other. Expect the same tags.
+ CodedInputStream input1 = CodedInputStream.CreateInstance(rawBytes);
+ CodedInputStream input2 = CodedInputStream.CreateInstance(rawBytes);
+ UnknownFieldSet.Builder unknownFields = UnknownFieldSet.CreateBuilder();
+
+ while (true)
+ {
+ uint tag = input1.ReadTag();
+ Assert.AreEqual(tag, input2.ReadTag());
+ if (tag == 0)
+ {
+ break;
+ }
+ unknownFields.MergeFieldFrom(tag, input1);
+ input2.SkipField(tag);
+ }
+ }
+
+ /// <summary>
+ /// Test that a bug in SkipRawBytes has been fixed: if the skip
+ /// skips exactly up to a limit, this should bnot break things
+ /// </summary>
+ [Test]
+ public void SkipRawBytesBug()
+ {
+ byte[] rawBytes = new byte[] {1, 2};
+ CodedInputStream input = CodedInputStream.CreateInstance(rawBytes);
+
+ int limit = input.PushLimit(1);
+ input.SkipRawBytes(1);
+ input.PopLimit(limit);
+ Assert.AreEqual(2, input.ReadRawByte());
+ }
+
+ public void ReadHugeBlob()
+ {
+ // Allocate and initialize a 1MB blob.
+ byte[] blob = new byte[1 << 20];
+ for (int i = 0; i < blob.Length; i++)
+ {
+ blob[i] = (byte) i;
+ }
+
+ // Make a message containing it.
+ TestAllTypes.Builder builder = TestAllTypes.CreateBuilder();
+ TestUtil.SetAllFields(builder);
+ builder.SetOptionalBytes(ByteString.CopyFrom(blob));
+ TestAllTypes message = builder.Build();
+
+ // Serialize and parse it. Make sure to parse from an InputStream, not
+ // directly from a ByteString, so that CodedInputStream uses buffered
+ // reading.
+ TestAllTypes message2 = TestAllTypes.ParseFrom(message.ToByteString().CreateCodedInput());
+
+ Assert.AreEqual(message.OptionalBytes, message2.OptionalBytes);
+
+ // Make sure all the other fields were parsed correctly.
+ TestAllTypes message3 = TestAllTypes.CreateBuilder(message2)
+ .SetOptionalBytes(TestUtil.GetAllSet().OptionalBytes)
+ .Build();
+ TestUtil.AssertAllFieldsSet(message3);
+ }
+
+ [Test]
+ public void ReadMaliciouslyLargeBlob()
+ {
+ MemoryStream ms = new MemoryStream();
+ CodedOutputStream output = CodedOutputStream.CreateInstance(ms);
+
+ uint tag = WireFormat.MakeTag(1, WireFormat.WireType.LengthDelimited);
+ output.WriteRawVarint32(tag);
+ output.WriteRawVarint32(0x7FFFFFFF);
+ output.WriteRawBytes(new byte[32]); // Pad with a few random bytes.
+ output.Flush();
+ ms.Position = 0;
+
+ CodedInputStream input = CodedInputStream.CreateInstance(ms);
+ Assert.AreEqual(tag, input.ReadTag());
+
+ try
+ {
+ input.ReadBytes();
+ Assert.Fail("Should have thrown an exception!");
+ }
+ catch (InvalidProtocolBufferException)
+ {
+ // success.
+ }
+ }
+
+ private static TestRecursiveMessage MakeRecursiveMessage(int depth)
+ {
+ if (depth == 0)
+ {
+ return TestRecursiveMessage.CreateBuilder().SetI(5).Build();
+ }
+ else
+ {
+ return TestRecursiveMessage.CreateBuilder()
+ .SetA(MakeRecursiveMessage(depth - 1)).Build();
+ }
+ }
+
+ private static void AssertMessageDepth(TestRecursiveMessage message, int depth)
+ {
+ if (depth == 0)
+ {
+ Assert.IsFalse(message.HasA);
+ Assert.AreEqual(5, message.I);
+ }
+ else
+ {
+ Assert.IsTrue(message.HasA);
+ AssertMessageDepth(message.A, depth - 1);
+ }
+ }
+
+ [Test]
+ public void MaliciousRecursion()
+ {
+ ByteString data64 = MakeRecursiveMessage(64).ToByteString();
+ ByteString data65 = MakeRecursiveMessage(65).ToByteString();
+
+ AssertMessageDepth(TestRecursiveMessage.ParseFrom(data64), 64);
+
+ try
+ {
+ TestRecursiveMessage.ParseFrom(data65);
+ Assert.Fail("Should have thrown an exception!");
+ }
+ catch (InvalidProtocolBufferException)
+ {
+ // success.
+ }
+
+ CodedInputStream input = data64.CreateCodedInput();
+ input.SetRecursionLimit(8);
+ try
+ {
+ TestRecursiveMessage.ParseFrom(input);
+ Assert.Fail("Should have thrown an exception!");
+ }
+ catch (InvalidProtocolBufferException)
+ {
+ // success.
+ }
+ }
+
+ [Test]
+ public void SizeLimit()
+ {
+ // Have to use a Stream rather than ByteString.CreateCodedInput as SizeLimit doesn't
+ // apply to the latter case.
+ MemoryStream ms = new MemoryStream(TestUtil.GetAllSet().ToByteString().ToByteArray());
+ CodedInputStream input = CodedInputStream.CreateInstance(ms);
+ input.SetSizeLimit(16);
+
+ try
+ {
+ TestAllTypes.ParseFrom(input);
+ Assert.Fail("Should have thrown an exception!");
+ }
+ catch (InvalidProtocolBufferException)
+ {
+ // success.
+ }
+ }
+
+ [Test]
+ public void ResetSizeCounter()
+ {
+ CodedInputStream input = CodedInputStream.CreateInstance(
+ new SmallBlockInputStream(new byte[256], 8));
+ input.SetSizeLimit(16);
+ input.ReadRawBytes(16);
+
+ try
+ {
+ input.ReadRawByte();
+ Assert.Fail("Should have thrown an exception!");
+ }
+ catch (InvalidProtocolBufferException)
+ {
+ // Success.
+ }
+
+ input.ResetSizeCounter();
+ input.ReadRawByte(); // No exception thrown.
+
+ try
+ {
+ input.ReadRawBytes(16); // Hits limit again.
+ Assert.Fail("Should have thrown an exception!");
+ }
+ catch (InvalidProtocolBufferException)
+ {
+ // Success.
+ }
+ }
+
+ /// <summary>
+ /// Tests that if we read an string that contains invalid UTF-8, no exception
+ /// is thrown. Instead, the invalid bytes are replaced with the Unicode
+ /// "replacement character" U+FFFD.
+ /// </summary>
+ [Test]
+ public void ReadInvalidUtf8()
+ {
+ MemoryStream ms = new MemoryStream();
+ CodedOutputStream output = CodedOutputStream.CreateInstance(ms);
+
+ uint tag = WireFormat.MakeTag(1, WireFormat.WireType.LengthDelimited);
+ output.WriteRawVarint32(tag);
+ output.WriteRawVarint32(1);
+ output.WriteRawBytes(new byte[] {0x80});
+ output.Flush();
+ ms.Position = 0;
+
+ CodedInputStream input = CodedInputStream.CreateInstance(ms);
+ Assert.AreEqual(tag, input.ReadTag());
+ string text = input.ReadString();
+ Assert.AreEqual('\ufffd', text[0]);
+ }
+
+ /// <summary>
+ /// A stream which limits the number of bytes it reads at a time.
+ /// We use this to make sure that CodedInputStream doesn't screw up when
+ /// reading in small blocks.
+ /// </summary>
+ private sealed class SmallBlockInputStream : MemoryStream
+ {
+ private readonly int blockSize;
+
+ public SmallBlockInputStream(byte[] data, int blockSize)
+ : base(data)
+ {
+ this.blockSize = blockSize;
+ }
+
+ public override int Read(byte[] buffer, int offset, int count)
+ {
+ return base.Read(buffer, offset, Math.Min(count, blockSize));
+ }
+ }
+ }
+}
\ No newline at end of file