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

third_party/protobuf/csharp/src/Google.Protobuf.Test/Collections/RepeatedFieldTest.cs

Index: third_party/protobuf/csharp/src/Google.Protobuf.Test/Collections/RepeatedFieldTest.cs
diff --git a/third_party/protobuf/csharp/src/Google.Protobuf.Test/Collections/RepeatedFieldTest.cs b/third_party/protobuf/csharp/src/Google.Protobuf.Test/Collections/RepeatedFieldTest.cs
deleted file mode 100644
index 8c804fdd22863de1495bfd07ebb3649c240e846b..0000000000000000000000000000000000000000
--- a/third_party/protobuf/csharp/src/Google.Protobuf.Test/Collections/RepeatedFieldTest.cs
+++ /dev/null
@@ -1,603 +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 System.Collections;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Text;
-using Google.Protobuf.TestProtos;
-using NUnit.Framework;
-
-namespace Google.Protobuf.Collections
-{
-    public class RepeatedFieldTest
-    {
-        [Test]
-        public void NullValuesRejected()
-        {
-            var list = new RepeatedField<string>();
-            Assert.Throws<ArgumentNullException>(() => list.Add((string)null));
-            Assert.Throws<ArgumentNullException>(() => list.Add((IEnumerable<string>)null));
-            Assert.Throws<ArgumentNullException>(() => list.Add((RepeatedField<string>)null));
-            Assert.Throws<ArgumentNullException>(() => list.Contains(null));
-            Assert.Throws<ArgumentNullException>(() => list.IndexOf(null));
-        }
-
-        [Test]
-        public void Add_SingleItem()
-        {
-            var list = new RepeatedField<string>();
-            list.Add("foo");
-            Assert.AreEqual(1, list.Count);
-            Assert.AreEqual("foo", list[0]);
-        }
-
-        [Test]
-        public void Add_Sequence()
-        {
-            var list = new RepeatedField<string>();
-            list.Add(new[] { "foo", "bar" });
-            Assert.AreEqual(2, list.Count);
-            Assert.AreEqual("foo", list[0]);
-            Assert.AreEqual("bar", list[1]);
-        }
-
-        [Test]
-        public void Add_RepeatedField()
-        {
-            var list = new RepeatedField<string> { "original" };
-            list.Add(new RepeatedField<string> { "foo", "bar" });
-            Assert.AreEqual(3, list.Count);
-            Assert.AreEqual("original", list[0]);
-            Assert.AreEqual("foo", list[1]);
-            Assert.AreEqual("bar", list[2]);
-        }
-
-        [Test]
-        public void RemoveAt_Valid()
-        {
-            var list = new RepeatedField<string> { "first", "second", "third" };
-            list.RemoveAt(1);
-            CollectionAssert.AreEqual(new[] { "first", "third" }, list);
-            // Just check that these don't throw...
-            list.RemoveAt(list.Count - 1); // Now the count will be 1...
-            list.RemoveAt(0);
-            Assert.AreEqual(0, list.Count);
-        }
-
-        [Test]
-        public void RemoveAt_Invalid()
-        {
-            var list = new RepeatedField<string> { "first", "second", "third" };
-            Assert.Throws<ArgumentOutOfRangeException>(() => list.RemoveAt(-1));
-            Assert.Throws<ArgumentOutOfRangeException>(() => list.RemoveAt(3));
-        }
-
-        [Test]
-        public void Insert_Valid()
-        {
-            var list = new RepeatedField<string> { "first", "second" };
-            list.Insert(1, "middle");
-            CollectionAssert.AreEqual(new[] { "first", "middle", "second" }, list);
-            list.Insert(3, "end");
-            CollectionAssert.AreEqual(new[] { "first", "middle", "second", "end" }, list);
-            list.Insert(0, "start");
-            CollectionAssert.AreEqual(new[] { "start", "first", "middle", "second", "end" }, list);
-        }
-
-        [Test]
-        public void Insert_Invalid()
-        {
-            var list = new RepeatedField<string> { "first", "second" };
-            Assert.Throws<ArgumentOutOfRangeException>(() => list.Insert(-1, "foo"));
-            Assert.Throws<ArgumentOutOfRangeException>(() => list.Insert(3, "foo"));
-            Assert.Throws<ArgumentNullException>(() => list.Insert(0, null));
-        }
-
-        [Test]
-        public void Equals_RepeatedField()
-        {
-            var list = new RepeatedField<string> { "first", "second" };
-            Assert.IsFalse(list.Equals((RepeatedField<string>) null));
-            Assert.IsTrue(list.Equals(list));
-            Assert.IsFalse(list.Equals(new RepeatedField<string> { "first", "third" }));
-            Assert.IsFalse(list.Equals(new RepeatedField<string> { "first" }));
-            Assert.IsTrue(list.Equals(new RepeatedField<string> { "first", "second" }));
-        }
-
-        [Test]
-        public void Equals_Object()
-        {
-            var list = new RepeatedField<string> { "first", "second" };
-            Assert.IsFalse(list.Equals((object) null));
-            Assert.IsTrue(list.Equals((object) list));
-            Assert.IsFalse(list.Equals((object) new RepeatedField<string> { "first", "third" }));
-            Assert.IsFalse(list.Equals((object) new RepeatedField<string> { "first" }));
-            Assert.IsTrue(list.Equals((object) new RepeatedField<string> { "first", "second" }));
-            Assert.IsFalse(list.Equals(new object()));
-        }
-
-        [Test]
-        public void GetEnumerator_GenericInterface()
-        {
-            IEnumerable<string> list = new RepeatedField<string> { "first", "second" };
-            // Select gets rid of the optimizations in ToList...
-            CollectionAssert.AreEqual(new[] { "first", "second" }, list.Select(x => x).ToList());
-        }
-
-        [Test]
-        public void GetEnumerator_NonGenericInterface()
-        {
-            IEnumerable list = new RepeatedField<string> { "first", "second" };
-            CollectionAssert.AreEqual(new[] { "first", "second" }, list.Cast<object>().ToList());
-        }
-
-        [Test]
-        public void CopyTo()
-        {
-            var list = new RepeatedField<string> { "first", "second" };
-            string[] stringArray = new string[4];
-            list.CopyTo(stringArray, 1);
-            CollectionAssert.AreEqual(new[] { null, "first", "second", null }, stringArray);
-        }
-
-        [Test]
-        public void Indexer_Get()
-        {
-            var list = new RepeatedField<string> { "first", "second" };
-            Assert.AreEqual("first", list[0]);
-            Assert.AreEqual("second", list[1]);
-            Assert.Throws<ArgumentOutOfRangeException>(() => list[-1].GetHashCode());
-            Assert.Throws<ArgumentOutOfRangeException>(() => list[2].GetHashCode());
-        }
-
-        [Test]
-        public void Indexer_Set()
-        {
-            var list = new RepeatedField<string> { "first", "second" };
-            list[0] = "changed";
-            Assert.AreEqual("changed", list[0]);
-            Assert.Throws<ArgumentNullException>(() => list[0] = null);
-            Assert.Throws<ArgumentOutOfRangeException>(() => list[-1] = "bad");
-            Assert.Throws<ArgumentOutOfRangeException>(() => list[2] = "bad");
-        }
-
-        [Test]
-        public void Clone_ReturnsMutable()
-        {
-            var list = new RepeatedField<int> { 0 };
-            var clone = list.Clone();
-            clone[0] = 1;
-        }
-
-        [Test]
-        public void Enumerator()
-        {
-            var list = new RepeatedField<string> { "first", "second" };
-            using (var enumerator = list.GetEnumerator())
-            {
-                Assert.IsTrue(enumerator.MoveNext());
-                Assert.AreEqual("first", enumerator.Current);
-                Assert.IsTrue(enumerator.MoveNext());
-                Assert.AreEqual("second", enumerator.Current);
-                Assert.IsFalse(enumerator.MoveNext());
-                Assert.IsFalse(enumerator.MoveNext());
-            }
-        }
-
-        [Test]
-        public void AddEntriesFrom_PackedInt32()
-        {
-            uint packedTag = WireFormat.MakeTag(10, WireFormat.WireType.LengthDelimited);
-            var stream = new MemoryStream();
-            var output = new CodedOutputStream(stream);
-            var length = CodedOutputStream.ComputeInt32Size(10)
-                + CodedOutputStream.ComputeInt32Size(999)
-                + CodedOutputStream.ComputeInt32Size(-1000);
-            output.WriteTag(packedTag);
-            output.WriteRawVarint32((uint) length);
-            output.WriteInt32(10);
-            output.WriteInt32(999);
-            output.WriteInt32(-1000);
-            output.Flush();
-            stream.Position = 0;
-
-            // Deliberately "expecting" a non-packed tag, but we detect that the data is
-            // actually packed.
-            uint nonPackedTag = WireFormat.MakeTag(10, WireFormat.WireType.LengthDelimited);
-            var field = new RepeatedField<int>();
-            var input = new CodedInputStream(stream);
-            input.AssertNextTag(packedTag);
-            field.AddEntriesFrom(input, FieldCodec.ForInt32(nonPackedTag));
-            CollectionAssert.AreEqual(new[] { 10, 999, -1000 }, field);
-            Assert.IsTrue(input.IsAtEnd);
-        }
-
-        [Test]
-        public void AddEntriesFrom_NonPackedInt32()
-        {
-            uint nonPackedTag = WireFormat.MakeTag(10, WireFormat.WireType.Varint);
-            var stream = new MemoryStream();
-            var output = new CodedOutputStream(stream);
-            output.WriteTag(nonPackedTag);
-            output.WriteInt32(10);
-            output.WriteTag(nonPackedTag);
-            output.WriteInt32(999);
-            output.WriteTag(nonPackedTag);
-            output.WriteInt32(-1000); // Just for variety...
-            output.Flush();
-            stream.Position = 0;
-
-            // Deliberately "expecting" a packed tag, but we detect that the data is
-            // actually not packed.
-            uint packedTag = WireFormat.MakeTag(10, WireFormat.WireType.LengthDelimited);
-            var field = new RepeatedField<int>();
-            var input = new CodedInputStream(stream);
-            input.AssertNextTag(nonPackedTag);
-            field.AddEntriesFrom(input, FieldCodec.ForInt32(packedTag));
-            CollectionAssert.AreEqual(new[] { 10, 999, -1000 }, field);
-            Assert.IsTrue(input.IsAtEnd);
-        }
-
-        [Test]
-        public void AddEntriesFrom_String()
-        {
-            uint tag = WireFormat.MakeTag(10, WireFormat.WireType.LengthDelimited);
-            var stream = new MemoryStream();
-            var output = new CodedOutputStream(stream);
-            output.WriteTag(tag);
-            output.WriteString("Foo");
-            output.WriteTag(tag);
-            output.WriteString("");
-            output.WriteTag(tag);
-            output.WriteString("Bar");
-            output.Flush();
-            stream.Position = 0;
-
-            var field = new RepeatedField<string>();
-            var input = new CodedInputStream(stream);
-            input.AssertNextTag(tag);
-            field.AddEntriesFrom(input, FieldCodec.ForString(tag));
-            CollectionAssert.AreEqual(new[] { "Foo", "", "Bar" }, field);
-            Assert.IsTrue(input.IsAtEnd);
-        }
-
-        [Test]
-        public void AddEntriesFrom_Message()
-        {
-            var message1 = new ForeignMessage { C = 2000 };
-            var message2 = new ForeignMessage { C = -250 };
-
-            uint tag = WireFormat.MakeTag(10, WireFormat.WireType.LengthDelimited);
-            var stream = new MemoryStream();
-            var output = new CodedOutputStream(stream);
-            output.WriteTag(tag);
-            output.WriteMessage(message1);
-            output.WriteTag(tag);
-            output.WriteMessage(message2);
-            output.Flush();
-            stream.Position = 0;
-
-            var field = new RepeatedField<ForeignMessage>();
-            var input = new CodedInputStream(stream);
-            input.AssertNextTag(tag);
-            field.AddEntriesFrom(input, FieldCodec.ForMessage(tag, ForeignMessage.Parser));
-            CollectionAssert.AreEqual(new[] { message1, message2}, field);
-            Assert.IsTrue(input.IsAtEnd);
-        }
-
-        [Test]
-        public void WriteTo_PackedInt32()
-        {
-            uint tag = WireFormat.MakeTag(10, WireFormat.WireType.LengthDelimited);
-            var field = new RepeatedField<int> { 10, 1000, 1000000 };
-            var stream = new MemoryStream();
-            var output = new CodedOutputStream(stream);
-            field.WriteTo(output, FieldCodec.ForInt32(tag));
-            output.Flush();
-            stream.Position = 0;
-
-            var input = new CodedInputStream(stream);
-            input.AssertNextTag(tag);
-            var length = input.ReadLength();
-            Assert.AreEqual(10, input.ReadInt32());
-            Assert.AreEqual(1000, input.ReadInt32());
-            Assert.AreEqual(1000000, input.ReadInt32());
-            Assert.IsTrue(input.IsAtEnd);
-            Assert.AreEqual(1 + CodedOutputStream.ComputeLengthSize(length) + length, stream.Length);
-        }
-
-        [Test]
-        public void WriteTo_NonPackedInt32()
-        {
-            uint tag = WireFormat.MakeTag(10, WireFormat.WireType.Varint);
-            var field = new RepeatedField<int> { 10, 1000, 1000000};
-            var stream = new MemoryStream();
-            var output = new CodedOutputStream(stream);
-            field.WriteTo(output, FieldCodec.ForInt32(tag));
-            output.Flush();
-            stream.Position = 0;
-
-            var input = new CodedInputStream(stream);
-            input.AssertNextTag(tag);
-            Assert.AreEqual(10, input.ReadInt32());
-            input.AssertNextTag(tag);
-            Assert.AreEqual(1000, input.ReadInt32());
-            input.AssertNextTag(tag);
-            Assert.AreEqual(1000000, input.ReadInt32());
-            Assert.IsTrue(input.IsAtEnd);
-        }
-
-        [Test]
-        public void WriteTo_String()
-        {
-            uint tag = WireFormat.MakeTag(10, WireFormat.WireType.LengthDelimited);
-            var field = new RepeatedField<string> { "Foo", "", "Bar" };
-            var stream = new MemoryStream();
-            var output = new CodedOutputStream(stream);
-            field.WriteTo(output, FieldCodec.ForString(tag));
-            output.Flush();
-            stream.Position = 0;
-
-            var input = new CodedInputStream(stream);
-            input.AssertNextTag(tag);
-            Assert.AreEqual("Foo", input.ReadString());
-            input.AssertNextTag(tag);
-            Assert.AreEqual("", input.ReadString());
-            input.AssertNextTag(tag);
-            Assert.AreEqual("Bar", input.ReadString());
-            Assert.IsTrue(input.IsAtEnd);
-        }
-
-        [Test]
-        public void WriteTo_Message()
-        {
-            var message1 = new ForeignMessage { C = 20 };
-            var message2 = new ForeignMessage { C = 25 };
-            uint tag = WireFormat.MakeTag(10, WireFormat.WireType.LengthDelimited);
-            var field = new RepeatedField<ForeignMessage> { message1, message2 };
-            var stream = new MemoryStream();
-            var output = new CodedOutputStream(stream);
-            field.WriteTo(output, FieldCodec.ForMessage(tag, ForeignMessage.Parser));
-            output.Flush();
-            stream.Position = 0;
-
-            var input = new CodedInputStream(stream);
-            input.AssertNextTag(tag);
-            Assert.AreEqual(message1, input.ReadMessage(ForeignMessage.Parser));
-            input.AssertNextTag(tag);
-            Assert.AreEqual(message2, input.ReadMessage(ForeignMessage.Parser));
-            Assert.IsTrue(input.IsAtEnd);
-        }
-
-        [Test]
-        public void CalculateSize_VariableSizeNonPacked()
-        {
-            var list = new RepeatedField<int> { 1, 500, 1 };
-            var tag = WireFormat.MakeTag(1, WireFormat.WireType.Varint);
-            // 2 bytes for the first entry, 3 bytes for the second, 2 bytes for the third
-            Assert.AreEqual(7, list.CalculateSize(FieldCodec.ForInt32(tag)));
-        }
-
-        [Test]
-        public void CalculateSize_FixedSizeNonPacked()
-        {
-            var list = new RepeatedField<int> { 1, 500, 1 };
-            var tag = WireFormat.MakeTag(1, WireFormat.WireType.Fixed32);
-            // 5 bytes for the each entry
-            Assert.AreEqual(15, list.CalculateSize(FieldCodec.ForSFixed32(tag)));
-        }
-
-        [Test]
-        public void CalculateSize_VariableSizePacked()
-        {
-            var list = new RepeatedField<int> { 1, 500, 1};
-            var tag = WireFormat.MakeTag(1, WireFormat.WireType.LengthDelimited);
-            // 1 byte for the tag, 1 byte for the length,
-            // 1 byte for the first entry, 2 bytes for the second, 1 byte for the third
-            Assert.AreEqual(6, list.CalculateSize(FieldCodec.ForInt32(tag)));
-        }
-
-        [Test]
-        public void CalculateSize_FixedSizePacked()
-        {
-            var list = new RepeatedField<int> { 1, 500, 1 };
-            var tag = WireFormat.MakeTag(1, WireFormat.WireType.LengthDelimited);
-            // 1 byte for the tag, 1 byte for the length, 4 bytes per entry
-            Assert.AreEqual(14, list.CalculateSize(FieldCodec.ForSFixed32(tag)));
-        }
-
-        [Test]
-        public void TestNegativeEnumArray()
-        {
-            int arraySize = 1 + 1 + (11 * 5);
-            int msgSize = arraySize;
-            byte[] bytes = new byte[msgSize];
-            CodedOutputStream output = new CodedOutputStream(bytes);
-            uint tag = WireFormat.MakeTag(8, WireFormat.WireType.Varint);
-            for (int i = 0; i >= -5; i--)
-            {
-                output.WriteTag(tag);
-                output.WriteEnum(i);
-            }
-
-            Assert.AreEqual(0, output.SpaceLeft);
-
-            CodedInputStream input = new CodedInputStream(bytes);
-            tag = input.ReadTag();
-
-            RepeatedField<SampleEnum> values = new RepeatedField<SampleEnum>();
-            values.AddEntriesFrom(input, FieldCodec.ForEnum(tag, x => (int)x, x => (SampleEnum)x));
-
-            Assert.AreEqual(6, values.Count);
-            Assert.AreEqual(SampleEnum.None, values[0]);
-            Assert.AreEqual(((SampleEnum)(-1)), values[1]);
-            Assert.AreEqual(SampleEnum.NegativeValue, values[2]);
-            Assert.AreEqual(((SampleEnum)(-3)), values[3]);
-            Assert.AreEqual(((SampleEnum)(-4)), values[4]);
-            Assert.AreEqual(((SampleEnum)(-5)), values[5]);
-        }
-
-
-        [Test]
-        public void TestNegativeEnumPackedArray()
-        {
-            int arraySize = 1 + (10 * 5);
-            int msgSize = 1 + 1 + arraySize;
-            byte[] bytes = new byte[msgSize];
-            CodedOutputStream output = new CodedOutputStream(bytes);
-            // Length-delimited to show we want the packed representation
-            uint tag = WireFormat.MakeTag(8, WireFormat.WireType.LengthDelimited);
-            output.WriteTag(tag);
-            int size = 0;
-            for (int i = 0; i >= -5; i--)
-            {
-                size += CodedOutputStream.ComputeEnumSize(i);
-            }
-            output.WriteRawVarint32((uint)size);
-            for (int i = 0; i >= -5; i--)
-            {
-                output.WriteEnum(i);
-            }
-            Assert.AreEqual(0, output.SpaceLeft);
-
-            CodedInputStream input = new CodedInputStream(bytes);
-            tag = input.ReadTag();
-
-            RepeatedField<SampleEnum> values = new RepeatedField<SampleEnum>();
-            values.AddEntriesFrom(input, FieldCodec.ForEnum(tag, x => (int)x, x => (SampleEnum)x));
-
-            Assert.AreEqual(6, values.Count);
-            Assert.AreEqual(SampleEnum.None, values[0]);
-            Assert.AreEqual(((SampleEnum)(-1)), values[1]);
-            Assert.AreEqual(SampleEnum.NegativeValue, values[2]);
-            Assert.AreEqual(((SampleEnum)(-3)), values[3]);
-            Assert.AreEqual(((SampleEnum)(-4)), values[4]);
-            Assert.AreEqual(((SampleEnum)(-5)), values[5]);
-        }
-
-        // Fairly perfunctory tests for the non-generic IList implementation
-        [Test]
-        public void IList_Indexer()
-        {
-            var field = new RepeatedField<string> { "first", "second" };
-            IList list = field;
-            Assert.AreEqual("first", list[0]);
-            list[1] = "changed";
-            Assert.AreEqual("changed", field[1]);
-        }
-
-        [Test]
-        public void IList_Contains()
-        {
-            IList list = new RepeatedField<string> { "first", "second" };
-            Assert.IsTrue(list.Contains("second"));
-            Assert.IsFalse(list.Contains("third"));
-            Assert.IsFalse(list.Contains(new object()));
-        }
-
-        [Test]
-        public void IList_Add()
-        {
-            IList list = new RepeatedField<string> { "first", "second" };
-            list.Add("third");
-            CollectionAssert.AreEqual(new[] { "first", "second", "third" }, list);
-        }
-
-        [Test]
-        public void IList_Remove()
-        {
-            IList list = new RepeatedField<string> { "first", "second" };
-            list.Remove("third"); // No-op, no exception
-            list.Remove(new object()); // No-op, no exception
-            list.Remove("first");
-            CollectionAssert.AreEqual(new[] { "second" }, list);
-        }
-
-        [Test]
-        public void IList_IsFixedSize()
-        {
-            var field = new RepeatedField<string> { "first", "second" };
-            IList list = field;
-            Assert.IsFalse(list.IsFixedSize);
-        }
-
-        [Test]
-        public void IList_IndexOf()
-        {
-            IList list = new RepeatedField<string> { "first", "second" };
-            Assert.AreEqual(1, list.IndexOf("second"));
-            Assert.AreEqual(-1, list.IndexOf("third"));
-            Assert.AreEqual(-1, list.IndexOf(new object()));
-        }
-
-        [Test]
-        public void IList_SyncRoot()
-        {
-            IList list = new RepeatedField<string> { "first", "second" };
-            Assert.AreSame(list, list.SyncRoot);
-        }
-
-        [Test]
-        public void IList_CopyTo()
-        {
-            IList list = new RepeatedField<string> { "first", "second" };
-            string[] stringArray = new string[4];
-            list.CopyTo(stringArray, 1);
-            CollectionAssert.AreEqual(new[] { null, "first",  "second", null }, stringArray);
-
-            object[] objectArray = new object[4];
-            list.CopyTo(objectArray, 1);
-            CollectionAssert.AreEqual(new[] { null, "first", "second", null }, objectArray);
-
-            Assert.Throws<ArrayTypeMismatchException>(() => list.CopyTo(new StringBuilder[4], 1));
-            Assert.Throws<ArrayTypeMismatchException>(() => list.CopyTo(new int[4], 1));
-        }
-
-        [Test]
-        public void IList_IsSynchronized()
-        {
-            IList list = new RepeatedField<string> { "first", "second" };
-            Assert.IsFalse(list.IsSynchronized);
-        }
-
-        [Test]
-        public void IList_Insert()
-        {
-            IList list = new RepeatedField<string> { "first", "second" };
-            list.Insert(1, "middle");
-            CollectionAssert.AreEqual(new[] { "first", "middle", "second" }, list);
-        }
-    }
-}