Tests: more cleanup

StackExchange.Redis.Tests/Expiry.cs

@@ -8,14 +8,7 @@ public class Expiry : TestBase
     {
         public Expiry(ITestOutputHelper output) : base (output) { }
 
-        private static string[] GetMap(bool disablePTimes)
-        {
-            if (disablePTimes)
-            {
-                return new[] { "pexpire", "pexpireat", "pttl" };
-            }
-            return null;
-        }
+        private static string[] GetMap(bool disablePTimes) => disablePTimes ? (new[] { "pexpire", "pexpireat", "pttl" }) : null;
 
         [Theory]
         [InlineData(true)]

StackExchange.Redis.Tests/FloatingPoint.cs

@@ -122,7 +122,7 @@ public void HashIncrDecrFloatingPoint()
                 }
                 var val = (double)db.HashGet(key, field);
 
-                Assert.True(Within(sum, val, 0.0001));
+                Assert.True(Within(sum, val, 0.0001), $"{sum} not within 0.0001 of {val}");
             }
         }
 

StackExchange.Redis.Tests/Sentinel.cs

 using System;
 using System.Net;
 using System.Threading;
+using StackExchange.Redis.Tests.Helpers;
 using Xunit;
 using Xunit.Abstractions;
 
@@ -12,11 +13,13 @@ public class Sentinel
 
         private ConnectionMultiplexer Conn { get; }
         private IServer Server { get; }
+        protected TextWriterOutputHelper Writer { get; }
 
         public ITestOutputHelper Output { get; }
         public Sentinel(ITestOutputHelper output)
         {
             Output = output;
+            Writer = new TextWriterOutputHelper(output);
 
             Skip.IfNoConfig(nameof(TestConfig.Config.SentinelServer), TestConfig.Current.SentinelServer);
             Skip.IfNoConfig(nameof(TestConfig.Config.SentinelSeviceName), TestConfig.Current.SentinelSeviceName);
@@ -30,7 +33,7 @@ public Sentinel(ITestOutputHelper output)
                 ServiceName = TestConfig.Current.SentinelSeviceName,
                 SyncTimeout = 5000
             };
-            Conn = ConnectionMultiplexer.Connect(options, Console.Out);
+            Conn = ConnectionMultiplexer.Connect(options, Writer);
             Thread.Sleep(3000);
             Assert.True(Conn.IsConnected);
             Server = Conn.GetServer(TestConfig.Current.SentinelServer, TestConfig.Current.SentinelPort);