Increase default cache connection count

Author: justcoding121

src/Titanium.Web.Proxy/ProxyServer.cs

@@ -208,9 +208,9 @@ public ProxyServer(string? rootCertificateName, string? rootCertificateIssuerNam
         /// <summary>
         ///     Maximum number of concurrent connections per remote host in cache.
         ///     Only valid when connection pooling is enabled.
-        ///     Default value is 2.
+        ///     Default value is 4.
         /// </summary>
-        public int MaxCachedConnections { get; set; } = 2;
+        public int MaxCachedConnections { get; set; } = 4;
 
         /// <summary>
         ///     Number of seconds to linger when Tcp connection is in TIME_WAIT state.

tests/Titanium.Web.Proxy.IntegrationTests/NestedProxyTests.cs

@@ -195,14 +195,14 @@ public async Task Nested_Proxy_Farm_With_Connection_Cache_Should_Not_Hang()
             var proxies2 = new List<ProxyServer>();
 
             //create a level 2 upstream proxy farm that forwards to server
-            for (int i = 0; i < 10; i++)
+            for (int i = 0; i < 2; i++)
             {
                 var proxy2 = testSuite.GetProxy();
                 proxy2.ProxyBasicAuthenticateFunc += (_, _, _) =>
                 {
                     return Task.FromResult(true);
                 };
-
+                proxy2.MaxCachedConnections = 100;
                 proxies2.Add(proxy2);
             }
 
@@ -212,9 +212,8 @@ public async Task Nested_Proxy_Farm_With_Connection_Cache_Should_Not_Hang()
             for (int i = 0; i < 10; i++)
             {
                 var proxy1 = testSuite.GetProxy();
-                //proxy1.EnableConnectionPool = false;
                 var proxy2 = proxies2[rnd.Next() % proxies2.Count];
-
+                proxy1.MaxCachedConnections = 100;
                 var explicitEndpoint = proxy1.ProxyEndPoints.OfType<ExplicitProxyEndPoint>().First();
                 explicitEndpoint.BeforeTunnelConnectRequest += (_, e) =>
                 {