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

third_party/protobuf/csharp/src/Google.Protobuf.Test/WellKnownTypes/WrappersTest.cs

Index: third_party/protobuf/csharp/src/Google.Protobuf.Test/WellKnownTypes/WrappersTest.cs
diff --git a/third_party/protobuf/csharp/src/Google.Protobuf.Test/WellKnownTypes/WrappersTest.cs b/third_party/protobuf/csharp/src/Google.Protobuf.Test/WellKnownTypes/WrappersTest.cs
deleted file mode 100644
index fbc0ff07a540bcaa55e0fcac166cfba2d476c9a5..0000000000000000000000000000000000000000
--- a/third_party/protobuf/csharp/src/Google.Protobuf.Test/WellKnownTypes/WrappersTest.cs
+++ /dev/null
@@ -1,349 +0,0 @@
-#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;
-using Google.Protobuf.TestProtos;
-using NUnit.Framework;
-using System.Collections;
-using System.IO;
-
-namespace Google.Protobuf.WellKnownTypes
-{
-    public class WrappersTest
-    {
-        [Test]
-        public void NullIsDefault()
-        {
-            var message = new TestWellKnownTypes();
-            Assert.IsNull(message.StringField);
-            Assert.IsNull(message.BytesField);
-            Assert.IsNull(message.BoolField);
-            Assert.IsNull(message.FloatField);
-            Assert.IsNull(message.DoubleField);
-            Assert.IsNull(message.Int32Field);
-            Assert.IsNull(message.Int64Field);
-            Assert.IsNull(message.Uint32Field);
-            Assert.IsNull(message.Uint64Field);
-        }
-
-        [Test]
-        public void NonDefaultSingleValues()
-        {
-            var message = new TestWellKnownTypes
-            {
-                StringField = "x",
-                BytesField = ByteString.CopyFrom(1, 2, 3),
-                BoolField = true,
-                FloatField = 12.5f,
-                DoubleField = 12.25d,
-                Int32Field = 1,
-                Int64Field = 2,
-                Uint32Field = 3,
-                Uint64Field = 4
-            };
-
-            var bytes = message.ToByteArray();
-            var parsed = TestWellKnownTypes.Parser.ParseFrom(bytes);
-
-            Assert.AreEqual("x", parsed.StringField);
-            Assert.AreEqual(ByteString.CopyFrom(1, 2, 3), parsed.BytesField);
-            Assert.AreEqual(true, parsed.BoolField);
-            Assert.AreEqual(12.5f, parsed.FloatField);
-            Assert.AreEqual(12.25d, parsed.DoubleField);
-            Assert.AreEqual(1, parsed.Int32Field);
-            Assert.AreEqual(2L, parsed.Int64Field);
-            Assert.AreEqual(3U, parsed.Uint32Field);
-            Assert.AreEqual(4UL, parsed.Uint64Field);
-        }
-
-        [Test]
-        public void NonNullDefaultIsPreservedThroughSerialization()
-        {
-            var message = new TestWellKnownTypes
-            {
-                StringField = "",
-                BytesField = ByteString.Empty,
-                BoolField = false,
-                FloatField = 0f,
-                DoubleField = 0d,
-                Int32Field = 0,
-                Int64Field = 0,
-                Uint32Field = 0,
-                Uint64Field = 0
-            };
-
-            var bytes = message.ToByteArray();
-            var parsed = TestWellKnownTypes.Parser.ParseFrom(bytes);
-
-            Assert.AreEqual("", parsed.StringField);
-            Assert.AreEqual(ByteString.Empty, parsed.BytesField);
-            Assert.AreEqual(false, parsed.BoolField);
-            Assert.AreEqual(0f, parsed.FloatField);
-            Assert.AreEqual(0d, parsed.DoubleField);
-            Assert.AreEqual(0, parsed.Int32Field);
-            Assert.AreEqual(0L, parsed.Int64Field);
-            Assert.AreEqual(0U, parsed.Uint32Field);
-            Assert.AreEqual(0UL, parsed.Uint64Field);
-        }
-
-        [Test]
-        public void RepeatedWrappersProhibitNullItems()
-        {
-            var message = new RepeatedWellKnownTypes();
-            Assert.Throws<ArgumentNullException>(() => message.BoolField.Add((bool?) null));
-            Assert.Throws<ArgumentNullException>(() => message.Int32Field.Add((int?) null));
-            Assert.Throws<ArgumentNullException>(() => message.StringField.Add((string) null));
-            Assert.Throws<ArgumentNullException>(() => message.BytesField.Add((ByteString) null));
-        }
-
-        [Test]
-        public void RepeatedWrappersSerializeDeserialize()
-        {
-            var message = new RepeatedWellKnownTypes
-            {
-                BoolField = { true, false },
-                BytesField = { ByteString.CopyFrom(1, 2, 3), ByteString.CopyFrom(4, 5, 6), ByteString.Empty },
-                DoubleField = { 12.5, -1.5, 0d },
-                FloatField = { 123.25f, -20f, 0f },
-                Int32Field = { int.MaxValue, int.MinValue, 0 },
-                Int64Field = { long.MaxValue, long.MinValue, 0L },                
-                StringField = { "First", "Second", "" },
-                Uint32Field = { uint.MaxValue, uint.MinValue, 0U },
-                Uint64Field = { ulong.MaxValue, ulong.MinValue, 0UL },
-            };
-            var bytes = message.ToByteArray();
-            var parsed = RepeatedWellKnownTypes.Parser.ParseFrom(bytes);
-
-            Assert.AreEqual(message, parsed);
-            // Just to test a single value for sanity...
-            Assert.AreEqual("Second", message.StringField[1]);
-        }
-
-        [Test]
-        public void MapWrappersSerializeDeserialize()
-        {
-            var message = new MapWellKnownTypes
-            {
-                BoolField = { { 10, false }, { 20, true } },
-                BytesField = {
-                    { -1, ByteString.CopyFrom(1, 2, 3) },
-                    { 10, ByteString.CopyFrom(4, 5, 6) },
-                    { 1000, ByteString.Empty },
-                    { 10000, null }
-                },
-                DoubleField = { { 1, 12.5 }, { 10, -1.5 }, { 20, 0d } },
-                FloatField = { { 2, 123.25f }, { 3, -20f }, { 4, 0f } },
-                Int32Field = { { 5, int.MaxValue }, { 6, int.MinValue }, { 7, 0 } },
-                Int64Field = { { 8, long.MaxValue }, { 9, long.MinValue }, { 10, 0L } },
-                StringField = { { 11, "First" }, { 12, "Second" }, { 13, "" }, { 14, null } },
-                Uint32Field = { { 15, uint.MaxValue }, { 16, uint.MinValue }, { 17, 0U } },
-                Uint64Field = { { 18, ulong.MaxValue }, { 19, ulong.MinValue }, { 20, 0UL } },
-            };
-
-            var bytes = message.ToByteArray();
-            var parsed = MapWellKnownTypes.Parser.ParseFrom(bytes);
-
-            Assert.AreEqual(message, parsed);
-            // Just to test a single value for sanity...
-            Assert.AreEqual("Second", message.StringField[12]);
-        }
-
-        [Test]
-        public void Reflection_SingleValues()
-        {
-            var message = new TestWellKnownTypes
-            {
-                StringField = "x",
-                BytesField = ByteString.CopyFrom(1, 2, 3),
-                BoolField = true,
-                FloatField = 12.5f,
-                DoubleField = 12.25d,
-                Int32Field = 1,
-                Int64Field = 2,
-                Uint32Field = 3,
-                Uint64Field = 4
-            };
-            var fields = TestWellKnownTypes.Descriptor.Fields;
-
-            Assert.AreEqual("x", fields[TestWellKnownTypes.StringFieldFieldNumber].Accessor.GetValue(message));
-            Assert.AreEqual(ByteString.CopyFrom(1, 2, 3), fields[TestWellKnownTypes.BytesFieldFieldNumber].Accessor.GetValue(message));
-            Assert.AreEqual(true, fields[TestWellKnownTypes.BoolFieldFieldNumber].Accessor.GetValue(message));
-            Assert.AreEqual(12.5f, fields[TestWellKnownTypes.FloatFieldFieldNumber].Accessor.GetValue(message));
-            Assert.AreEqual(12.25d, fields[TestWellKnownTypes.DoubleFieldFieldNumber].Accessor.GetValue(message));
-            Assert.AreEqual(1, fields[TestWellKnownTypes.Int32FieldFieldNumber].Accessor.GetValue(message));
-            Assert.AreEqual(2L, fields[TestWellKnownTypes.Int64FieldFieldNumber].Accessor.GetValue(message));
-            Assert.AreEqual(3U, fields[TestWellKnownTypes.Uint32FieldFieldNumber].Accessor.GetValue(message));
-            Assert.AreEqual(4UL, fields[TestWellKnownTypes.Uint64FieldFieldNumber].Accessor.GetValue(message));
-
-            // And a couple of null fields...
-            message.StringField = null;
-            message.FloatField = null;
-            Assert.IsNull(fields[TestWellKnownTypes.StringFieldFieldNumber].Accessor.GetValue(message));
-            Assert.IsNull(fields[TestWellKnownTypes.FloatFieldFieldNumber].Accessor.GetValue(message));
-        }
-
-        [Test]
-        public void Reflection_RepeatedFields()
-        {
-            // Just a single example... note that we can't have a null value here
-            var message = new RepeatedWellKnownTypes { Int32Field = { 1, 2 } };
-            var fields = RepeatedWellKnownTypes.Descriptor.Fields;
-            var list = (IList) fields[RepeatedWellKnownTypes.Int32FieldFieldNumber].Accessor.GetValue(message);
-            CollectionAssert.AreEqual(new[] { 1, 2 }, list);
-        }
-
-        [Test]
-        public void Reflection_MapFields()
-        {
-            // Just a single example... note that we can't have a null value here
-            var message = new MapWellKnownTypes { Int32Field = { { 1, 2 }, { 3, null } } };
-            var fields = MapWellKnownTypes.Descriptor.Fields;
-            var dictionary = (IDictionary) fields[MapWellKnownTypes.Int32FieldFieldNumber].Accessor.GetValue(message);
-            Assert.AreEqual(2, dictionary[1]);
-            Assert.IsNull(dictionary[3]);
-            Assert.IsTrue(dictionary.Contains(3));
-        }
-
-        [Test]
-        public void Oneof()
-        {
-            var message = new OneofWellKnownTypes { EmptyField = new Empty() };
-            // Start off with a non-wrapper
-            Assert.AreEqual(OneofWellKnownTypes.OneofFieldOneofCase.EmptyField, message.OneofFieldCase);
-            AssertOneofRoundTrip(message);
-
-            message.StringField = "foo";
-            Assert.AreEqual(OneofWellKnownTypes.OneofFieldOneofCase.StringField, message.OneofFieldCase);
-            AssertOneofRoundTrip(message);
-
-            message.StringField = "foo";
-            Assert.AreEqual(OneofWellKnownTypes.OneofFieldOneofCase.StringField, message.OneofFieldCase);
-            AssertOneofRoundTrip(message);
-
-            message.DoubleField = 0.0f;
-            Assert.AreEqual(OneofWellKnownTypes.OneofFieldOneofCase.DoubleField, message.OneofFieldCase);
-            AssertOneofRoundTrip(message);
-
-            message.DoubleField = 1.0f;
-            Assert.AreEqual(OneofWellKnownTypes.OneofFieldOneofCase.DoubleField, message.OneofFieldCase);
-            AssertOneofRoundTrip(message);
-
-            message.ClearOneofField();
-            Assert.AreEqual(OneofWellKnownTypes.OneofFieldOneofCase.None, message.OneofFieldCase);
-            AssertOneofRoundTrip(message);
-        }
-
-        private void AssertOneofRoundTrip(OneofWellKnownTypes message)
-        {
-            // Normal roundtrip, but explicitly checking the case...
-            var bytes = message.ToByteArray();
-            var parsed = OneofWellKnownTypes.Parser.ParseFrom(bytes);
-            Assert.AreEqual(message, parsed);
-            Assert.AreEqual(message.OneofFieldCase, parsed.OneofFieldCase);
-        }
-
-        [Test]
-        [TestCase("x", "y", "y")]
-        [TestCase("x", "", "x")]
-        [TestCase("x", null, "x")]
-        [TestCase("", "y", "y")]
-        [TestCase("", "", "")]
-        [TestCase("", null, "")]
-        [TestCase(null, "y", "y")]
-        [TestCase(null, "", "")]
-        [TestCase(null, null, null)]
-        public void Merging(string original, string merged, string expected)
-        {
-            var originalMessage = new TestWellKnownTypes { StringField = original };
-            var mergingMessage = new TestWellKnownTypes { StringField = merged };
-            originalMessage.MergeFrom(mergingMessage);
-            Assert.AreEqual(expected, originalMessage.StringField);
-
-            // Try it using MergeFrom(CodedInputStream) too...
-            originalMessage = new TestWellKnownTypes { StringField = original };
-            originalMessage.MergeFrom(mergingMessage.ToByteArray());
-            Assert.AreEqual(expected, originalMessage.StringField);
-        }
-
-        // Merging is odd with wrapper types, due to the way that default values aren't emitted in
-        // the binary stream. In fact we cheat a little bit - a message with an explicitly present default
-        // value will have that default value ignored.
-        [Test]
-        public void MergingCornerCase()
-        {
-            var message = new TestWellKnownTypes { Int32Field = 5 };
-
-            // Create a byte array which has the data of an Int32Value explicitly containing a value of 0.
-            // This wouldn't normally happen.
-            byte[] bytes;
-            var wrapperTag = WireFormat.MakeTag(TestWellKnownTypes.Int32FieldFieldNumber, WireFormat.WireType.LengthDelimited);
-            var valueTag = WireFormat.MakeTag(Int32Value.ValueFieldNumber, WireFormat.WireType.Varint);
-            using (var stream = new MemoryStream())
-            {
-                var coded = new CodedOutputStream(stream);
-                coded.WriteTag(wrapperTag);
-                coded.WriteLength(2); // valueTag + a value 0, each one byte
-                coded.WriteTag(valueTag);
-                coded.WriteInt32(0);
-                coded.Flush();
-                bytes = stream.ToArray();
-            }
-
-            message.MergeFrom(bytes);
-            // A normal implementation would have 0 now, as the explicit default would have been overwritten the 5.
-            Assert.AreEqual(5, message.Int32Field);
-        }
-
-        [Test]
-        public void UnknownFieldInWrapper()
-        {
-            var stream = new MemoryStream();
-            var output = new CodedOutputStream(stream);
-            var wrapperTag = WireFormat.MakeTag(TestWellKnownTypes.Int32FieldFieldNumber, WireFormat.WireType.LengthDelimited);
-            var unknownTag = WireFormat.MakeTag(15, WireFormat.WireType.Varint);
-            var valueTag = WireFormat.MakeTag(Int32Value.ValueFieldNumber, WireFormat.WireType.Varint);
-
-            output.WriteTag(wrapperTag);
-            output.WriteLength(4); // unknownTag + value 5 + valueType + value 6, each 1 byte
-            output.WriteTag(unknownTag);
-            output.WriteInt32((int) valueTag); // Sneakily "pretend" it's a tag when it's really a value
-            output.WriteTag(valueTag);
-            output.WriteInt32(6);
-
-            output.Flush();
-            stream.Position = 0;
-            
-            var message = TestWellKnownTypes.Parser.ParseFrom(stream);
-            Assert.AreEqual(6, message.Int32Field);
-        }
-    }
-}