time based stopwatch

Snowflake.Data.Tests/IntegrationTests/ConnectionMultiplePoolsIT.cs

@@ -1,8 +1,6 @@
 using System;
 using System.Data;
-using System.Diagnostics;
 using System.Linq;
-using System.Threading;
 using System.Threading.Tasks;
 using NUnit.Framework;
 using Snowflake.Data.Client;
@@ -113,7 +111,7 @@ public void TestWaitForTheIdleConnectionWhenExceedingMaxConnectionsLimit()
             pool.SetWaitingTimeout(1000);
             var conn1 = OpenedConnection(connectionString);
             var conn2 = OpenedConnection(connectionString);
-            var watch = new Stopwatch();
+            var watch = new StopWatch();
 
             // act
             watch.Start();
@@ -145,7 +143,7 @@ public void TestWaitForTheIdleConnectionWhenExceedingMaxConnectionsLimitAsync()
             pool.SetWaitingTimeout(1000);
             var conn1 = OpenedConnection(connectionString);
             var conn2 = OpenedConnection(connectionString);
-            var watch = new Stopwatch();
+            var watch = new StopWatch();
 
             // act
             watch.Start();
@@ -180,7 +178,7 @@ public void TestWaitInAQueueForAnIdleSession()
                 .NewThread("B", 50, 2000, true)
                 .NewThread("C", 100, 0, true)
                 .NewThread("D", 150, 0, true);
-            var watch = new Stopwatch();
+            var watch = new StopWatch();
 
             // act
             watch.Start();

Snowflake.Data.Tests/Util/StopWatch.cs

@@ -0,0 +1,25 @@
+using System;
+
+namespace Snowflake.Data.Tests.Util
+{
+    internal class StopWatch
+    {
+        private long _startMillis;
+        private long _stopMillis;
+
+        public long ElapsedMilliseconds
+        {
+            get => _stopMillis - _startMillis;
+        }
+
+        public void Start()
+        {
+            _startMillis = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
+        }
+
+        public void Stop()
+        {
+            _stopMillis = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
+        }
+    }
+}