content: /*
   * Copyright (C) 2017 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 com.android.launcher3.util.rule;
  
  import static com.android.launcher3.tapl.TestHelpers.getLauncherInMyProcess;
  
  import static androidx.test.InstrumentationRegistry.getInstrumentation;
  
  import android.content.ComponentName;
  import android.content.pm.ActivityInfo;
  
  import org.junit.rules.TestRule;
  import org.junit.runner.Description;
  import org.junit.runners.model.Statement;
  
  import androidx.annotation.Nullable;
  import androidx.test.InstrumentationRegistry;
  import androidx.test.uiautomator.UiDevice;
  
  /**
   * Test rule which executes a shell command at the start of the test.
   */
  public class ShellCommandRule implements TestRule {
  
      private final String mCmd;
      private final String mRevertCommand;
  
      public ShellCommandRule(String cmd, @Nullable String revertCommand) {
          mCmd = cmd;
          mRevertCommand = revertCommand;
      }
  
      @Override
      public Statement apply(Statement base, Description description) {
          return new Statement() {
              @Override
              public void evaluate() throws Throwable {
                  UiDevice.getInstance(getInstrumentation()).executeShellCommand(mCmd);
                  try {
                      base.evaluate();
                  } finally {
                      if (mRevertCommand != null) {
                          UiDevice.getInstance(getInstrumentation()).executeShellCommand(mRevertCommand);
                      }
                  }
              }
          };
      }
  
      /**
       * Grants the launcher permission to bind widgets.
       */
      public static ShellCommandRule grantWidgetBind() {
          return new ShellCommandRule("appwidget grantbind --package "
                  + InstrumentationRegistry.getTargetContext().getPackageName(), null);
      }
  
      /**
       * Sets the target launcher as default launcher.
       */
      public static ShellCommandRule setDefaultLauncher() {
          return new ShellCommandRule(getLauncherCommand(getLauncherInMyProcess()), null);
      }
  
      public static String getLauncherCommand(ActivityInfo launcher) {
          return "cmd package set-home-activity " +
                  new ComponentName(launcher.packageName, launcher.name).flattenToString();
      }
  
      /**
       * Disables heads up notification for the duration of the test
       */
      public static ShellCommandRule disableHeadsUpNotification() {
          return new ShellCommandRule("settings put global heads_up_notifications_enabled 0",
                  "settings put global heads_up_notifications_enabled 1");
      }
  }
  