Issue 4916 - Request compression in CURL WebRequest.

test/WebRequest.cpp

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2016 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 71 matching lines @@
   jsEngine->Evaluate("_webRequest.GET('https://easylist-downloads.adblockplus.org/easylist.txt', {}, function(result) {foo = result;} )");
   do
   {
     AdblockPlus::Sleep(200);
   } while (jsEngine->Evaluate("this.foo")->IsUndefined());
   ASSERT_EQ("text/plain", jsEngine->Evaluate("foo.responseHeaders['content-type'].substr(0, 10)")->AsString());
   ASSERT_EQ(AdblockPlus::WebRequest::NS_OK, jsEngine->Evaluate("foo.status")->AsInt());
   ASSERT_EQ(200, jsEngine->Evaluate("foo.responseStatus")->AsInt());
   ASSERT_EQ("[Adblock Plus ", jsEngine->Evaluate("foo.responseText.substr(0, 14)")->AsString());
   ASSERT_EQ("text/plain", jsEngine->Evaluate("foo.responseHeaders['content-type'].substr(0, 10)")->AsString());
+#if defined(HAVE_CURL)
+  ASSERT_EQ("gzip", jsEngine->Evaluate("foo.responseHeaders['content-encoding'].substr(0, 4)")->AsString());
+#endif
   ASSERT_TRUE(jsEngine->Evaluate("foo.responseHeaders['location']")->IsUndefined());
 }
 
 TEST_F(DefaultWebRequestTest, XMLHttpRequest)
 {
   AdblockPlus::FilterEngine filterEngine(jsEngine);
 
   jsEngine->Evaluate("\
     var result;\
     var request = new XMLHttpRequest();\
@@ skipping 45 matching lines @@
   {
     AdblockPlus::Sleep(200);
   } while (jsEngine->Evaluate("result")->IsUndefined());
   ASSERT_EQ(AdblockPlus::WebRequest::NS_ERROR_FAILURE, jsEngine->Evaluate("request.channel.status")->AsInt());
   ASSERT_EQ(0, jsEngine->Evaluate("request.status")->AsInt());
   ASSERT_EQ("error", jsEngine->Evaluate("result")->AsString());
   ASSERT_TRUE(jsEngine->Evaluate("request.getResponseHeader('Content-Type')")->IsNull());
 }
 
 #endif