Allow Schema queue to be detected from the database schema instead of hardcoding the username (#27142)

Author: saurabh500

src/System.Data.SqlClient/tests/ManualTests/SQL/SqlNotificationTest/SqlNotificationTest.cs

@@ -13,9 +13,9 @@ public class SqlNotificationTest : IDisposable
         private const int CALLBACK_TIMEOUT = 5000; // milliseconds
 
         // Database schema
-        private readonly string _tableName = "dbo.[SQLDEP_" + Guid.NewGuid().ToString() + "]";
-        private readonly string _queueName = "SQLDEP_" + Guid.NewGuid().ToString();
-        private readonly string _serviceName = "SQLDEP_" + Guid.NewGuid().ToString();
+        private readonly string _tableName   = $"dbo.[SQLDEP_{Guid.NewGuid().ToString()}]";
+        private readonly string _queueName   = $"SQLDEP_{Guid.NewGuid().ToString()}";
+        private readonly string _serviceName = $"SQLDEP_{Guid.NewGuid().ToString()}";
         private readonly string _schemaQueue;
 
         // Connection information used by all tests
@@ -27,15 +27,7 @@ public SqlNotificationTest()
             _startConnectionString = DataTestUtility.TcpConnStr;
             _execConnectionString = DataTestUtility.TcpConnStr;
 
-            var startBuilder = new SqlConnectionStringBuilder(_startConnectionString);
-            if (startBuilder.IntegratedSecurity)
-            {
-                _schemaQueue = string.Format("[{0}]", _queueName);
-            }
-            else
-            {
-                _schemaQueue = string.Format("[{0}].[{1}]", startBuilder.UserID, _queueName);
-            }
+            _schemaQueue = $"[{_queueName}]";
 
             Setup();
         }