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      1 /*
      2  * Copyright (C) 2012 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.cts.tradefed.testtype;
     18 
     19 import com.android.cts.tradefed.targetprep.SettingsToggler;
     20 import com.android.cts.util.AbiUtils;
     21 import com.android.ddmlib.Log;
     22 import com.android.tradefed.device.DeviceNotAvailableException;
     23 import com.android.tradefed.device.ITestDevice;
     24 import com.android.tradefed.result.ITestInvocationListener;
     25 import com.android.tradefed.util.FileUtil;
     26 
     27 import junit.framework.TestCase;
     28 
     29 import java.io.File;
     30 
     31 /**
     32  * Running the accessibility tests requires modification of secure
     33  * settings. Secure settings cannot be changed from device CTS tests
     34  * since system signature permission is required. Such settings can
     35  * be modified by the shell user, so a host side test is used for
     36  * installing a package with some accessibility services, enabling
     37  * these services, running the tests, disabling the services, and removing
     38  * the accessibility services package.
     39  */
     40 public class AccessibilityTestRunner extends CtsInstrumentationApkTest {
     41 
     42     private static final String LOG_TAG = AccessibilityTestRunner.class.getSimpleName();
     43 
     44     private static final String SOME_ACCESSIBLITY_SERVICES_PACKAGE_NAME =
     45         "android.view.accessibility.services";
     46 
     47     private static final String SPEAKING_ACCESSIBLITY_SERVICE_NAME =
     48         "android.view.accessibility.services.SpeakingAccessibilityService";
     49 
     50     private static final String VIBRATING_ACCESSIBLITY_SERVICE_NAME =
     51         "android.view.accessibility.services.VibratingAccessibilityService";
     52 
     53     private static final String SOME_ACCESSIBLITY_SERVICES_APK =
     54         "CtsSomeAccessibilityServices.apk";
     55 
     56     @Override
     57     public void run(ITestInvocationListener listener) throws DeviceNotAvailableException {
     58         beforeTest();
     59         super.run(listener);
     60         afterTest();
     61     }
     62 
     63     private void beforeTest() throws DeviceNotAvailableException {
     64         installApkAndAssert(SOME_ACCESSIBLITY_SERVICES_APK);
     65         enableAccessibilityAndServices();
     66     }
     67 
     68     private void afterTest() throws DeviceNotAvailableException {
     69         disableAccessibilityAndServices(getDevice());
     70         uninstallAndAssert(SOME_ACCESSIBLITY_SERVICES_PACKAGE_NAME);
     71     }
     72 
     73     private void installApkAndAssert(String apkName) throws DeviceNotAvailableException {
     74         File file = FileUtil.getFileForPath(mCtsBuild.getTestCasesDir(), apkName);
     75         String[] options = {AbiUtils.createAbiFlag(mAbi.getName())};
     76         String errorMessage = getDevice().installPackage(file, true, options);
     77         TestCase.assertNull("Error installing: " + apkName, errorMessage);
     78     }
     79 
     80     private void uninstallAndAssert(String packageName) throws DeviceNotAvailableException {
     81         String errorMessage = getDevice().uninstallPackage(packageName);
     82         TestCase.assertNull("Error uninstalling: " + packageName, errorMessage);
     83     }
     84 
     85     private void enableAccessibilityAndServices() throws DeviceNotAvailableException {
     86         String enabledServicesValue =
     87               SOME_ACCESSIBLITY_SERVICES_PACKAGE_NAME + "/" + SPEAKING_ACCESSIBLITY_SERVICE_NAME
     88             + ":"
     89             + SOME_ACCESSIBLITY_SERVICES_PACKAGE_NAME + "/" + VIBRATING_ACCESSIBLITY_SERVICE_NAME;
     90         enableAccessibilityAndServices(getDevice(), enabledServicesValue);
     91     }
     92 
     93     static void enableAccessibilityAndServices(ITestDevice device, String value)
     94             throws DeviceNotAvailableException {
     95         SettingsToggler.setSecureString(device, "enabled_accessibility_services", value);
     96         SettingsToggler.setSecureString(device,
     97                 "touch_exploration_granted_accessibility_services", value);
     98         SettingsToggler.setSecureInt(device, "accessibility_enabled", 1);
     99     }
    100 
    101     static void disableAccessibilityAndServices(ITestDevice device)
    102             throws DeviceNotAvailableException {
    103         SettingsToggler.updateSecureString(device, "enabled_accessibility_services", "");
    104         SettingsToggler.updateSecureString(device,
    105                 "touch_exploration_granted_accessibility_services", "");
    106         SettingsToggler.updateSecureInt(device, "accessibility_enabled", 0);
    107     }
    108 }
    109