Redis Functional tests fix

Author: vaishalitvv

src/VirtualClient/VirtualClient.Actions.FunctionalTests/Redis/RedisServerProfileTests.cs

@@ -8,6 +8,7 @@ namespace VirtualClient.Actions
     using System.Linq;
     using System.Net;
     using System.Runtime.InteropServices;
+    using System.Text;
     using System.Threading;
     using System.Threading.Tasks;
     using Moq;
@@ -90,6 +91,10 @@ public async Task RedisMemtierWorkloadProfileExecutesTheWorkloadAsExpectedOfServ
             this.mockFixture.ProcessManager.OnCreateProcess = (command, arguments, workingDir) =>
             {
                 IProcessProxy process = this.mockFixture.CreateProcess(command, arguments, workingDir);
+                if (!string.IsNullOrWhiteSpace(arguments) && arguments.Contains("redis-cli INFO SERVER"))
+                {
+                    process.StandardOutput = new ConcurrentBuffer(new StringBuilder("redis_version:7.0.15"));
+                }
 
                 return process;
             };

src/VirtualClient/VirtualClient.Common/IProcessProxy.cs

@@ -82,7 +82,7 @@ public interface IProcessProxy : IDisposable
         /// <summary>
         /// Standard error stream for the process.
         /// </summary>
-        ConcurrentBuffer StandardOutput { get; }
+        ConcurrentBuffer StandardOutput { get; set; }
 
         /// <summary>
         /// Standard input for the process.

src/VirtualClient/VirtualClient.Common/ProcessProxy.cs

@@ -151,7 +151,7 @@ public ProcessDetails ProcessDetails
         public ConcurrentBuffer StandardError { get; }
 
         /// <inheritdoc />
-        public ConcurrentBuffer StandardOutput { get; }
+        public ConcurrentBuffer StandardOutput { get; set; }
 
         /// <inheritdoc />
         public StreamWriter StandardInput => this.UnderlyingProcess.StandardInput;