Fix AlterAdd Tests (#103)

add sleep to alter add test

Author: shacharPash

tests/NRedisStack.Tests/Search/SearchTests.cs

@@ -642,6 +642,10 @@ public void AlterAdd()
         Schema sc = new Schema().AddTextField("title", 1.0);
 
         Assert.True(ft.Create(index, FTCreateParams.CreateParams(), sc));
+
+        //sleep:
+        System.Threading.Thread.Sleep(2000);
+
         var fields = new HashEntry("title", "hello world");
         //fields.("title", "hello world");
         for (int i = 0; i < 100; i++)
@@ -702,6 +706,10 @@ public async Task AlterAddAsync()
         Schema sc = new Schema().AddTextField("title", 1.0);
 
         Assert.True(ft.Create(index, FTCreateParams.CreateParams(), sc));
+
+        //sleep:
+        System.Threading.Thread.Sleep(2000);
+
         var fields = new HashEntry("title", "hello world");
         //fields.("title", "hello world");
         for (int i = 0; i < 100; i++)