add make it possible to switch test rig between frameworks

BasicTest/BasicTest.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <Description>StackExchange.Redis.BasicTest .NET Core</Description>
-    <TargetFrameworks>netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks>netcoreapp2.0;netcoreapp2.1;net47</TargetFrameworks>
     <AssemblyName>BasicTest</AssemblyName>
     <OutputType>Exe</OutputType>
     <PackageId>BasicTest</PackageId>
@@ -12,7 +12,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <ProjectReference Include="..\StackExchange.Redis\StackExchange.Redis.csproj" />
+    <!--<ProjectReference Include="..\StackExchange.Redis\StackExchange.Redis.csproj" />-->
+    <PackageReference Include="StackExchange.Redis" Version="1.2.7-alpha-00002" />
   </ItemGroup>
 
 </Project>

BasicTest/Program.cs

 using System;
+using System.Diagnostics;
 using System.Threading.Tasks;
 using StackExchange.Redis;
 
@@ -28,18 +29,20 @@ public static async Task Main()
                     await set;
                     Console.WriteLine(await s);
 
+                    const int COUNT = 10000;
                     var rand = new Random(12345);
                     RedisKey counter = "counter";
+                    var watch = Stopwatch.StartNew();
                     db.KeyDelete(counter, CommandFlags.FireAndForget);
-                    for (int i = 0; i < 1000; i++)
+                    for (int i = 0; i < COUNT; i++)
                     {
                         int x = rand.Next(50);
-                        //Console.WriteLine($"{i}:{x}");
                         expected += x;
-                        db.StringIncrement(counter, x); //, CommandFlags.FireAndForget);
+                        db.StringIncrement(counter, x, CommandFlags.FireAndForget);
                     }
                     int actual = (int)await db.StringGetAsync(counter);
-                    Console.WriteLine($"{expected} vs {actual}");
+                    watch.Stop();
+                    Console.WriteLine($"{expected} vs {actual}, {watch.ElapsedMilliseconds}ms for {COUNT} incrby");
                 }
                 catch (Exception ex)
                 {