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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System;
using System.Text;
using System.Net.Http;
using System.Reflection;
using Xunit;
using Xunit.Abstractions;
namespace System.Net.Http.Tests
{
public class HttpClientHandlerTestsAndroid
{
static Type GetInnerHandlerType (HttpClient httpClient)
{
BindingFlags bflasgs = BindingFlags.Instance | BindingFlags.NonPublic;
FieldInfo handlerField = typeof (HttpMessageInvoker).GetField("_handler", bflasgs);
Assert.NotNull (handlerField);
object handler = handlerField.GetValue (httpClient);
FieldInfo innerHandlerField = handler.GetType ().GetField ("_delegatingHandler", bflasgs);
Assert.NotNull (handlerField);
object innerHandler = innerHandlerField.GetValue (handler);
return innerHandler.GetType ();
}
[Fact]
public void TestEnvVarSwitchForInnerHttpHandler ()
{
const string xaHandlerKey = "XA_HTTP_CLIENT_HANDLER_TYPE";
var prevHandler = Environment.GetEnvironmentVariable (xaHandlerKey);
// ""
Environment.SetEnvironmentVariable (xaHandlerKey, "");
var httpClient1 = new HttpClient ();
Assert.Equal ("SocketsHttpHandler", GetInnerHandlerType (httpClient1).Name);
var handler2 = new HttpClientHandler ();
var httpClient2 = new HttpClient (handler2);
Assert.Equal ("SocketsHttpHandler", GetInnerHandlerType (httpClient2).Name);
// "System.Net.Http.MonoWebRequestHandler"
Environment.SetEnvironmentVariable (xaHandlerKey, "System.Net.Http.MonoWebRequestHandler");
var httpClient3 = new HttpClient ();
Assert.Equal ("MonoWebRequestHandler", GetInnerHandlerType (httpClient3).Name);
var handler4 = new HttpClientHandler ();
var httpClient4 = new HttpClient (handler4);
Assert.Equal ("MonoWebRequestHandler", GetInnerHandlerType (httpClient4).Name);
// "System.Net.Http.MonoWebRequestHandler, System.Net.Http"
Environment.SetEnvironmentVariable (xaHandlerKey, "System.Net.Http.MonoWebRequestHandler, System.Net.Http");
var httpClient5 = new HttpClient ();
Assert.Equal ("MonoWebRequestHandler", GetInnerHandlerType (httpClient5).Name);
var handler6 = new HttpClientHandler ();
var httpClient6 = new HttpClient (handler6);
Assert.Equal ("MonoWebRequestHandler", GetInnerHandlerType (httpClient6).Name);
// "System.Net.Http.HttpClientHandler"
Environment.SetEnvironmentVariable (xaHandlerKey, "System.Net.Http.HttpClientHandler");
var httpClient7 = new HttpClient ();
Assert.Equal ("SocketsHttpHandler", GetInnerHandlerType (httpClient7).Name);
var handler8 = new HttpClientHandler ();
var httpClient8 = new HttpClient (handler8);
Assert.Equal ("SocketsHttpHandler", GetInnerHandlerType (httpClient8).Name);
Environment.SetEnvironmentVariable (xaHandlerKey, prevHandler);
}
}
}
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