content: /**
   * Copyright 2014 55 Minutes (http://www.55minutes.com)
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *    http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package fiftyfive.wicket.resource;
  
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  
  import fiftyfive.wicket.test.WicketTestUtils;
  
  import org.apache.wicket.markup.html.WebPage;
  import org.apache.wicket.protocol.http.WebApplication;
  import org.apache.wicket.request.resource.caching.NoOpResourceCachingStrategy;
  import org.apache.wicket.util.io.IOUtils;
  import org.apache.wicket.util.tester.DummyHomePage;
  import org.apache.wicket.util.tester.WicketTester;
  
  import static org.junit.Assert.assertArrayEquals;
  
  
  public abstract class MergedResourceBuilderTest
  {
      /**
       * Render the MergedCssBuilderTestPage.
       */
      protected WicketTester doRender(Class<? extends WebPage> page) throws Exception
      {
          WicketTester tester = new WicketTester(new MergedApp());
          tester.startPage(page);
          tester.assertRenderedPage(page);
          WicketTestUtils.assertValidMarkup(tester);
          return tester;
      }
      
      /**
       * Download the resource at the given URI and make sure its contents
       * are identical to a merged list of files from the test fixture.
       */
      protected void assertDownloaded(WicketTester tester, String uri, String... files)
          throws IOException
      {
          ByteArrayOutputStream expected = new ByteArrayOutputStream();
          for(String filename : files)
          {
              InputStream is = getClass().getResourceAsStream(filename);
              try
              {
                  IOUtils.copy(is, expected);
              }
              finally
              {
                  IOUtils.closeQuietly(is);
              }
          }
          WicketTestUtils.assertDownloadEquals(tester, uri, expected.toByteArray());
      }
      
      protected abstract void onAppInit(WebApplication app);
  
      /**
       * Test app that mounts merged resources.
       */
      public class MergedApp extends WebApplication
      {
          @Override
          public Class<? extends WebPage> getHomePage()
          {
              return DummyHomePage.class;
          }
  
          @Override
          protected void init()
          {
              super.init();
              getResourceSettings().setCachingStrategy(NoOpResourceCachingStrategy.INSTANCE);
              onAppInit(this);
          }
      }
  }
  