Added tests for Reverse.

src/Renci.SshNet.Tests/Classes/Common/ExtensionsTest_Reverse.cs

@@ -0,0 +1,83 @@
+using System;
+using System.Diagnostics;
+using System.Diagnostics.CodeAnalysis;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace Renci.SshNet.Tests.Classes.Common
+{
+    [TestClass]
+    [SuppressMessage("ReSharper", "InvokeAsExtensionMethod")]
+    public class ExtensionsTest_Reverse
+    {
+        [TestMethod]
+        public void Empty()
+        {
+            var value = new byte[0];
+
+            var actual = Extensions.Reverse(value);
+
+            Assert.IsNotNull(actual);
+            Assert.AreEqual(0, actual.Length);
+        }
+
+        [TestInitialize]
+        public void Null()
+        {
+            const byte[] value = null;
+
+            try
+            {
+                Extensions.Reverse(value);
+                Assert.Fail();
+            }
+            catch (ArgumentNullException ex)
+            {
+                Assert.IsNull(ex.InnerException);
+                Assert.AreEqual("array", ex.ParamName);
+            }
+        }
+
+        [TestMethod]
+        public void Small()
+        {
+            var value = new[] {0, 1, 4, 3, 7, 9};
+
+            var actual = Extensions.Reverse(value);
+
+            Assert.IsNotNull(actual);
+            Assert.AreEqual(6, actual.Length);
+            Assert.AreEqual(9, actual[0]);
+            Assert.AreEqual(7, actual[1]);
+            Assert.AreEqual(3, actual[2]);
+            Assert.AreEqual(4, actual[3]);
+            Assert.AreEqual(1, actual[4]);
+            Assert.AreEqual(0, actual[5]);
+
+            Assert.AreEqual(9, value[0]);
+            Assert.AreEqual(7, value[1]);
+            Assert.AreEqual(3, value[2]);
+            Assert.AreEqual(4, value[3]);
+            Assert.AreEqual(1, value[4]);
+            Assert.AreEqual(0, value[5]);
+        }
+
+        [TestMethod]
+        [Ignore]
+        public void Perf_Large()
+        {
+            var value = new byte[2048];
+            new Random().NextBytes(value);
+
+            var stopwatch = Stopwatch.StartNew();
+
+            for (var i = 0; i < 1000000; i++)
+            {
+                Extensions.Reverse(value);
+            }
+
+            stopwatch.Stop();
+            Console.WriteLine(stopwatch.ElapsedMilliseconds);
+        }
+    }
+}
+

src/Renci.SshNet.Tests/Renci.SshNet.Tests.csproj

@@ -145,6 +145,7 @@
     <Compile Include="Classes\Common\CountdownEventTest.cs" />
     <Compile Include="Classes\Common\ExtensionsTest_Concat.cs" />
     <Compile Include="Classes\Common\ExtensionsTest_IsEqualTo_ByteArray.cs" />
+    <Compile Include="Classes\Common\ExtensionsTest_Reverse.cs" />
     <Compile Include="Classes\Common\ExtensionsTest_Take_Count.cs" />
     <Compile Include="Classes\Common\ExtensionsTest_Take_OffsetAndCount.cs" />
     <Compile Include="Classes\Common\ExtensionsTest_TrimLeadingZeros.cs" />