Issue 5556 - remove LogSystem setters

libadblockplus-android-tests/src/org/adblockplus/libadblockplus/tests/BaseJsTest.java

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present 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
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 package org.adblockplus.libadblockplus.tests;
 
 import org.adblockplus.libadblockplus.AppInfo;
 import org.adblockplus.libadblockplus.JsEngine;
 import org.adblockplus.libadblockplus.LazyLogSystem;
+import org.adblockplus.libadblockplus.LogSystem;
 import org.adblockplus.libadblockplus.ThrowingWebRequest;
 
 import android.content.Context;
 import android.test.InstrumentationTestCase;
 
 public abstract class BaseJsTest extends InstrumentationTestCase
 {
   protected JsEngine jsEngine;
 
   @Override
   protected void setUp() throws Exception
   {
     super.setUp();
 
-    jsEngine = new JsEngine(AppInfo.builder().build());
-    jsEngine.setDefaultLogSystem();
+    jsEngine = new JsEngine(AppInfo.builder().build(), createLogSystem());
     jsEngine.setDefaultFileSystem(getContext().getFilesDir().getAbsolutePath());
     jsEngine.setWebRequest(new ThrowingWebRequest());
   }
 
+  // If the method returns null then a default implementation of the Log System
+  // provided by libadblockplus is used.
+  protected LogSystem createLogSystem()
+  {
+    return null;
+  }
+
   protected Context getContext()
   {
     return getInstrumentation().getTargetContext();
   }
 }