Tests: replace AssertNearlyEqual - xUnit has this

StackExchange.Redis.Tests/Booksleeve/BookSleeveTestBase.cs

@@ -2,7 +2,6 @@
 using System;
 using System.Diagnostics;
 using System.Threading.Tasks;
-using Xunit;
 using Xunit.Abstractions;
 
 namespace StackExchange.Redis.Tests.Booksleeve
@@ -10,6 +9,7 @@ namespace StackExchange.Redis.Tests.Booksleeve
     public class BookSleeveTestBase
     {
         public ITestOutputHelper Output { get; }
+
         public BookSleeveTestBase(ITestOutputHelper output)
         {
             Output = output;
@@ -70,12 +70,5 @@ internal static ConnectionMultiplexer GetSecuredConnection()
             conn.InternalError += (s, args) => Trace.WriteLine(args.Exception.Message, args.Origin);
             return conn;
         }
-
-        internal static RedisFeatures GetFeatures(ConnectionMultiplexer muxer) => GetServer(muxer).Features;
-
-        internal static void AssertNearlyEqual(double x, double y)
-        {
-            if (Math.Abs(x - y) > 0.00001) Assert.Equal(x, y);
-        }
     }
 }

StackExchange.Redis.Tests/Booksleeve/Strings.cs

@@ -158,13 +158,13 @@ public void IncrDecrFloat()
 
                 var s = conn.StringGetAsync("incr");
 
-                AssertNearlyEqual(3.1, conn.Wait(v1));
-                AssertNearlyEqual(8.1, conn.Wait(v2));
-                AssertNearlyEqual(6.1, conn.Wait(v3));
-                AssertNearlyEqual(5.1, conn.Wait(v4));
-                AssertNearlyEqual(0.1, conn.Wait(v5));
-                AssertNearlyEqual(2.1, conn.Wait(v6));
-                AssertNearlyEqual(2.1, (double)conn.Wait(s));
+                Assert.Equal(3.1, conn.Wait(v1), 5);
+                Assert.Equal(8.1, conn.Wait(v2), 5);
+                Assert.Equal(6.1, conn.Wait(v3), 5);
+                Assert.Equal(5.1, conn.Wait(v4), 5);
+                Assert.Equal(0.1, conn.Wait(v5), 5);
+                Assert.Equal(2.1, conn.Wait(v6), 5);
+                Assert.Equal(2.1, (double)conn.Wait(s), 5);
             }
         }