/**
 * Copyright 2009 Google Inc.
 *
 * 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 org.waveprotocol.wave.client.editor;

import com.google.common.annotations.VisibleForTesting;

import org.waveprotocol.wave.client.editor.content.paragraph.LineRendering;
import org.waveprotocol.wave.client.editor.extract.Repairer;
import org.waveprotocol.wave.model.document.util.LineContainers;

/**
 * Utility that exposes various package-private internals of an Editor for testing purposes.
 * NOTE(patcoleman): These methods should *only* need be called from test/debugging code.
 *
 * @author patcoleman@google.com (Pat Coleman)
 */
@VisibleForTesting
public class EditorTestingUtil {
  /** Util class, private constructor. */
  private EditorTestingUtil() {}

  /** Flushes an editor synchronously. */
  public static void forceFlush(Editor editor) {
    if (editor instanceof EditorImpl) {
      ((EditorImpl) editor).flushSynchronous();
    }
  }

  /** Performs various health checks on the editor's current state. */
  public static void checkHealth(Editor editor) {
    if (editor instanceof EditorImpl) {
      ((EditorImpl) editor).debugCheckHealth();
    }
  }

  /** Sees whether the editor is in a consistent state. */
  public static boolean isConsistent(Editor editor) {
    if (editor instanceof EditorImpl) {
      return ((EditorImpl) editor).isConsistent();
    } else {
      return true;
    }
  }

  public static void setupTestEnvironment() {
    Repairer.debugRepairIsFatal = true;
    LineContainers.setTopLevelContainerTagname("body");
    LineRendering.registerContainer("body", Editor.ROOT_HANDLER_REGISTRY);
  }
}