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Diffstat (limited to 'csharp/src/Google.Protobuf.Test/FieldCodecTest.cs')
| -rw-r--r-- | csharp/src/Google.Protobuf.Test/FieldCodecTest.cs | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/csharp/src/Google.Protobuf.Test/FieldCodecTest.cs b/csharp/src/Google.Protobuf.Test/FieldCodecTest.cs new file mode 100644 index 00000000..0e2bad59 --- /dev/null +++ b/csharp/src/Google.Protobuf.Test/FieldCodecTest.cs @@ -0,0 +1,196 @@ +#region Copyright notice and license +// Protocol Buffers - Google's data interchange format +// Copyright 2015 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.Collections.Generic; +using System.IO; +using System.Reflection; +using Google.Protobuf.TestProtos; +using NUnit.Framework; + +namespace Google.Protobuf +{ + public class FieldCodecTest + { +#pragma warning disable 0414 // Used by tests via reflection - do not remove! + private static readonly List<ICodecTestData> Codecs = new List<ICodecTestData> + { + new FieldCodecTestData<bool>(FieldCodec.ForBool(100), true, "Bool"), + new FieldCodecTestData<string>(FieldCodec.ForString(100), "sample", "String"), + new FieldCodecTestData<ByteString>(FieldCodec.ForBytes(100), ByteString.CopyFrom(1, 2, 3), "Bytes"), + new FieldCodecTestData<int>(FieldCodec.ForInt32(100), -1000, "Int32"), + new FieldCodecTestData<int>(FieldCodec.ForSInt32(100), -1000, "SInt32"), + new FieldCodecTestData<int>(FieldCodec.ForSFixed32(100), -1000, "SFixed32"), + new FieldCodecTestData<uint>(FieldCodec.ForUInt32(100), 1234, "UInt32"), + new FieldCodecTestData<uint>(FieldCodec.ForFixed32(100), 1234, "Fixed32"), + new FieldCodecTestData<long>(FieldCodec.ForInt64(100), -1000, "Int64"), + new FieldCodecTestData<long>(FieldCodec.ForSInt64(100), -1000, "SInt64"), + new FieldCodecTestData<long>(FieldCodec.ForSFixed64(100), -1000, "SFixed64"), + new FieldCodecTestData<ulong>(FieldCodec.ForUInt64(100), 1234, "UInt64"), + new FieldCodecTestData<ulong>(FieldCodec.ForFixed64(100), 1234, "Fixed64"), + new FieldCodecTestData<float>(FieldCodec.ForFloat(100), 1234.5f, "Float"), + new FieldCodecTestData<double>(FieldCodec.ForDouble(100), 1234567890.5d, "Double"), + new FieldCodecTestData<ForeignEnum>( + FieldCodec.ForEnum(100, t => (int) t, t => (ForeignEnum) t), ForeignEnum.ForeignBaz, "Enum"), + new FieldCodecTestData<ForeignMessage>( + FieldCodec.ForMessage(100, ForeignMessage.Parser), new ForeignMessage { C = 10 }, "Message"), + }; +#pragma warning restore 0414 + + [Test, TestCaseSource("Codecs")] + public void RoundTripWithTag(ICodecTestData codec) + { + codec.TestRoundTripWithTag(); + } + + [Test, TestCaseSource("Codecs")] + public void RoundTripRaw(ICodecTestData codec) + { + codec.TestRoundTripRaw(); + } + + [Test, TestCaseSource("Codecs")] + public void CalculateSize(ICodecTestData codec) + { + codec.TestCalculateSizeWithTag(); + } + + [Test, TestCaseSource("Codecs")] + public void DefaultValue(ICodecTestData codec) + { + codec.TestDefaultValue(); + } + + [Test, TestCaseSource("Codecs")] + public void FixedSize(ICodecTestData codec) + { + codec.TestFixedSize(); + } + + // This is ugly, but it means we can have a non-generic interface. + // It feels like NUnit should support this better, but I don't know + // of any better ways right now. + public interface ICodecTestData + { + void TestRoundTripRaw(); + void TestRoundTripWithTag(); + void TestCalculateSizeWithTag(); + void TestDefaultValue(); + void TestFixedSize(); + } + + public class FieldCodecTestData<T> : ICodecTestData + { + private readonly FieldCodec<T> codec; + private readonly T sampleValue; + private readonly string name; + + public FieldCodecTestData(FieldCodec<T> codec, T sampleValue, string name) + { + this.codec = codec; + this.sampleValue = sampleValue; + this.name = name; + } + + public void TestRoundTripRaw() + { + var stream = new MemoryStream(); + var codedOutput = new CodedOutputStream(stream); + codec.ValueWriter(codedOutput, sampleValue); + codedOutput.Flush(); + stream.Position = 0; + var codedInput = new CodedInputStream(stream); + Assert.AreEqual(sampleValue, codec.ValueReader(codedInput)); + Assert.IsTrue(codedInput.IsAtEnd); + } + + public void TestRoundTripWithTag() + { + var stream = new MemoryStream(); + var codedOutput = new CodedOutputStream(stream); + codec.WriteTagAndValue(codedOutput, sampleValue); + codedOutput.Flush(); + stream.Position = 0; + var codedInput = new CodedInputStream(stream); + codedInput.AssertNextTag(codec.Tag); + Assert.AreEqual(sampleValue, codec.Read(codedInput)); + Assert.IsTrue(codedInput.IsAtEnd); + } + + public void TestCalculateSizeWithTag() + { + var stream = new MemoryStream(); + var codedOutput = new CodedOutputStream(stream); + codec.WriteTagAndValue(codedOutput, sampleValue); + codedOutput.Flush(); + Assert.AreEqual(stream.Position, codec.CalculateSizeWithTag(sampleValue)); + } + + public void TestDefaultValue() + { + // WriteTagAndValue ignores default values + var stream = new MemoryStream(); + var codedOutput = new CodedOutputStream(stream); + codec.WriteTagAndValue(codedOutput, codec.DefaultValue); + codedOutput.Flush(); + Assert.AreEqual(0, stream.Position); + Assert.AreEqual(0, codec.CalculateSizeWithTag(codec.DefaultValue)); + if (typeof(T).GetTypeInfo().IsValueType) + { + Assert.AreEqual(default(T), codec.DefaultValue); + } + + // The plain ValueWriter/ValueReader delegates don't. + if (codec.DefaultValue != null) // This part isn't appropriate for message types. + { + codedOutput = new CodedOutputStream(stream); + codec.ValueWriter(codedOutput, codec.DefaultValue); + codedOutput.Flush(); + Assert.AreNotEqual(0, stream.Position); + Assert.AreEqual(stream.Position, codec.ValueSizeCalculator(codec.DefaultValue)); + stream.Position = 0; + var codedInput = new CodedInputStream(stream); + Assert.AreEqual(codec.DefaultValue, codec.ValueReader(codedInput)); + } + } + + public void TestFixedSize() + { + Assert.AreEqual(name.Contains("Fixed"), codec.FixedSize != 0); + } + + public override string ToString() + { + return name; + } + } + } +} |