Small code improvements in tests

Author: cincuranet

NETProvider/src/FirebirdSql.Data.UnitTests/FbConnectionTests.cs

@@ -23,6 +23,7 @@
 using System.Data;
 using System.IO;
 using System.Reflection;
+using System.Threading;
 using FirebirdSql.Data.FirebirdClient;
 using NUnit.Framework;
 
@@ -200,7 +201,7 @@ public void ConnectionPoolingTimeOutTest()
 				myConnection2.Close();
 			}
 
-			System.Threading.Thread.Sleep(csb.ConnectionLifeTime * 2 * 1000);
+			Thread.Sleep(TimeSpan.FromSeconds(csb.ConnectionLifeTime + 1));
 
 			Assert.AreEqual(active, GetActiveConnections());
 
@@ -275,7 +276,7 @@ public void ConnectionPoolingMinPoolSizeTest()
 				connections.ForEach(x => x.Dispose());
 			}
 
-			System.Threading.Thread.Sleep(csb.ConnectionLifeTime * 2 * 1000);
+			Thread.Sleep(TimeSpan.FromSeconds(csb.ConnectionLifeTime + 1));
 
 			Assert.AreEqual(active + csb.MinPoolSize, GetActiveConnections());
 		}

NETProvider/src/FirebirdSql.Data.UnitTests/TrackerIssuesTests.cs

@@ -272,11 +272,11 @@ public void DNET595()
 		{
 			FbConnection.ClearAllPools();
 			const int NumberOfThreads = 15;
-			const int ConnectionLifeTime = 5;
 
 			FbConnectionStringBuilder csb = BuildConnectionStringBuilder(this.FbServerType);
 			csb.Pooling = true;
-			csb.ConnectionLifeTime = ConnectionLifeTime;
+			csb.ConnectionLifeTime = 5;
+			csb.MinPoolSize = 0;
 			string cs = csb.ToString();
 
 			var active = GetActiveConnections();
@@ -309,7 +309,7 @@ public void DNET595()
 				GetSomething(cs);
 			}
 
-			Thread.Sleep(TimeSpan.FromSeconds(ConnectionLifeTime + 1));
+			Thread.Sleep(TimeSpan.FromSeconds(csb.ConnectionLifeTime + 1));
 			Assert.AreEqual(GetActiveConnections(), active);
 		}