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diff --git a/src/csharp/Grpc.Core.Tests/ChannelOptionsTest.cs b/src/csharp/Grpc.Core.Tests/ChannelOptionsTest.cs
new file mode 100644
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+++ b/src/csharp/Grpc.Core.Tests/ChannelOptionsTest.cs
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+#region Copyright notice and license
+
+// Copyright 2015, Google Inc.
+// All rights reserved.
+//
+// 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.Generic;
+using Grpc.Core;
+using Grpc.Core.Internal;
+using Grpc.Core.Utils;
+using NUnit.Framework;
+
+namespace Grpc.Core.Internal.Tests
+{
+    public class ChannelOptionsTest
+    {
+        [Test]
+        public void IntOption()
+        {
+            var option = new ChannelOption("somename", 1);
+
+            Assert.AreEqual(ChannelOption.OptionType.Integer, option.Type);
+            Assert.AreEqual("somename", option.Name);
+            Assert.AreEqual(1, option.IntValue);
+            Assert.Throws(typeof(InvalidOperationException), () => { var s = option.StringValue; });
+        }
+
+        [Test]
+        public void StringOption()
+        {
+            var option = new ChannelOption("somename", "ABCDEF");
+
+            Assert.AreEqual(ChannelOption.OptionType.String, option.Type);
+            Assert.AreEqual("somename", option.Name);
+            Assert.AreEqual("ABCDEF", option.StringValue);
+            Assert.Throws(typeof(InvalidOperationException), () => { var s = option.IntValue; });
+        }
+
+        [Test]
+        public void ConstructorPreconditions()
+        {
+            Assert.Throws(typeof(NullReferenceException), () => { new ChannelOption(null, "abc"); });
+            Assert.Throws(typeof(NullReferenceException), () => { new ChannelOption(null, 1); });
+            Assert.Throws(typeof(NullReferenceException), () => { new ChannelOption("abc", null); });
+        }
+
+        [Test]
+        public void CreateChannelArgsNull()
+        {
+            var channelArgs = ChannelOptions.CreateChannelArgs(null);
+            Assert.IsTrue(channelArgs.IsInvalid);
+        }
+
+        [Test]
+        public void CreateChannelArgsEmpty()
+        {
+            var options = new List<ChannelOption>();
+            var channelArgs = ChannelOptions.CreateChannelArgs(options);
+            channelArgs.Dispose();
+        }
+
+        [Test]
+        public void CreateChannelArgs()
+        {
+            var options = new List<ChannelOption>
+            {
+                new ChannelOption("ABC", "XYZ"),
+                new ChannelOption("somename", "IJKLM"),
+                new ChannelOption("intoption", 12345),
+                new ChannelOption("GHIJK", 12345),
+            };
+
+            var channelArgs = ChannelOptions.CreateChannelArgs(options);
+            channelArgs.Dispose();
+        }
+    }
+}