Add connection open/close benchmark

Author: fdcastel

src/FirebirdSql.Data.FirebirdClient.Benchmarks/ConnectionBenchmark.cs

@@ -0,0 +1,45 @@
+/*
+ *    The contents of this file are subject to the Initial
+ *    Developer's Public License Version 1.0 (the "License");
+ *    you may not use this file except in compliance with the
+ *    License. You may obtain a copy of the License at
+ *    https://github.com/FirebirdSQL/NETProvider/raw/master/license.txt.
+ *
+ *    Software distributed under the License is distributed on
+ *    an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either
+ *    express or implied. See the License for the specific
+ *    language governing rights and limitations under the License.
+ *
+ *    All Rights Reserved.
+ */
+
+//$Authors = Jiri Cincura (jiri@cincura.net)
+
+using System.Threading.Tasks;
+using BenchmarkDotNet.Attributes;
+
+namespace FirebirdSql.Data.FirebirdClient.Benchmarks;
+
+[Config(typeof(BenchmarkConfig))]
+public class ConnectionBenchmark : BenchmarkBase
+{
+	[GlobalSetup]
+	public void GlobalSetup()
+	{
+		CreateDatabase();
+	}
+
+	[Benchmark]
+	public void OpenClose()
+	{
+		using var conn = new FbConnection(ConnectionString);
+		conn.Open();
+	}
+
+	[Benchmark]
+	public async Task OpenCloseAsync()
+	{
+		await using var conn = new FbConnection(ConnectionString);
+		await conn.OpenAsync();
+	}
+}