content: /*
   * Copyright (C) 2018 The Android Open Source Project
   *
   * 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 androidx.test.internal.platform.util;
  
  import java.io.Serializable;
  import java.util.Map;
  
  /**
   * An extension definition for outputting debugging information to the test execution environment.
   *
   * <p>Implementations should be provided via {@link ServiceLoader}
   *
   * @hide
   */
  public interface TestOutputHandler {
  
    /** Output the stack traces of all running threads back to the execution environment. */
    void dumpThreadStates(String outputName);
  
    /** Take a screenshot and store it in test outputs */
    boolean takeScreenshot(String outputName);
  
    /** Dump the window hierarchy and store it in test outputs */
    boolean captureWindowHierarchy(String outputName);
  
    /** Add output properties for the test. */
    boolean addOutputProperties(Map<String, Serializable> properties);
  }
  