Revert https://codereview.chromium.org/1291903002 (protobuf roll).

third_party/protobuf/csharp/src/Google.Protobuf.Test/FieldCodecTest.cs

-#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 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.FOREIGN_BAZ, "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).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;
-            }
-        }
-    }
-}