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

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

Index: third_party/protobuf/csharp/src/Google.Protobuf.Test/WellKnownTypes/TimestampTest.cs
diff --git a/third_party/protobuf/csharp/src/Google.Protobuf.Test/WellKnownTypes/TimestampTest.cs b/third_party/protobuf/csharp/src/Google.Protobuf.Test/WellKnownTypes/TimestampTest.cs
deleted file mode 100644
index 597539eb0c63fcf556391eb53fbe0806c58a67a6..0000000000000000000000000000000000000000
--- a/third_party/protobuf/csharp/src/Google.Protobuf.Test/WellKnownTypes/TimestampTest.cs
+++ /dev/null
@@ -1,84 +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 NUnit.Framework;
-using System;
-
-namespace Google.Protobuf.WellKnownTypes
-{
-    public class TimestampTest
-    {
-        [Test]
-        public void FromAndToDateTime()
-        {
-            DateTime utcMin = DateTime.SpecifyKind(DateTime.MinValue, DateTimeKind.Utc);
-            DateTime utcMax = DateTime.SpecifyKind(DateTime.MaxValue, DateTimeKind.Utc);
-            AssertRoundtrip(new Timestamp { Seconds = -62135596800 }, utcMin);
-            AssertRoundtrip(new Timestamp { Seconds = 253402300799, Nanos = 999999900 }, utcMax);
-            AssertRoundtrip(new Timestamp(), new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc));
-            AssertRoundtrip(new Timestamp { Nanos = 1000000}, new DateTime(1970, 1, 1, 0, 0, 0, 1, DateTimeKind.Utc));
-            AssertRoundtrip(new Timestamp { Seconds = -1, Nanos = 999000000 }, new DateTime(1969, 12, 31, 23, 59, 59, 999, DateTimeKind.Utc));
-            AssertRoundtrip(new Timestamp { Seconds = 3600 }, new DateTime(1970, 1, 1, 1, 0, 0, DateTimeKind.Utc));
-            AssertRoundtrip(new Timestamp { Seconds = -3600 }, new DateTime(1969, 12, 31, 23, 0, 0, DateTimeKind.Utc));
-        }
-
-        [Test]
-        public void ToDateTimeTruncation()
-        {
-            var t1 = new Timestamp { Seconds = 1, Nanos = 1000000 + Duration.NanosecondsPerTick - 1 };
-            Assert.AreEqual(new DateTime(1970, 1, 1, 0, 0, 1, DateTimeKind.Utc).AddMilliseconds(1), t1.ToDateTime());
-
-            var t2 = new Timestamp { Seconds = -1, Nanos = 1000000 + Duration.NanosecondsPerTick - 1 };
-            Assert.AreEqual(new DateTime(1969, 12, 31, 23, 59, 59).AddMilliseconds(1), t2.ToDateTime());
-        }
-
-        private static void AssertRoundtrip(Timestamp timestamp, DateTime dateTime)
-        {
-            Assert.AreEqual(timestamp, Timestamp.FromDateTime(dateTime));
-            Assert.AreEqual(dateTime, timestamp.ToDateTime());
-            Assert.AreEqual(DateTimeKind.Utc, timestamp.ToDateTime().Kind);
-        }
-
-        [Test]
-        public void Arithmetic()
-        {
-            Timestamp t1 = new Timestamp { Seconds = 10000, Nanos = 5000 };
-            Timestamp t2 = new Timestamp { Seconds = 8000, Nanos = 10000 };
-            Duration difference = new Duration { Seconds = 1999, Nanos = Duration.NanosecondsPerSecond - 5000 };
-            Assert.AreEqual(difference, t1 - t2);
-            Assert.AreEqual(-difference, t2 - t1);
-            
-            Assert.AreEqual(t1, t2 + difference);
-            Assert.AreEqual(t2, t1 - difference);
-        }
-    }
-}