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      1 page.title=Android 6.0 Testing Guide
      2 page.image=images/cards/card-n-guide_2x.png
      3 meta.tags="preview", "testing"
      4 page.tags="preview", "developer preview"
      5 
      6 @jd:body
      7 
      8 <div id="qv-wrapper">
      9   <div id="qv">
     10     <h2>In this document</h2>
     11       <ol>
     12         <li><a href="#runtime-permissions">Testing Permissions</a></li>
     13         <li><a href="#doze-standby">Testing Doze and App Standby</a></li>
     14         <li><a href="#ids">Auto Backup and Device Identifiers</a></li>
     15       </ol>
     16   </div>
     17 </div>
     18 
     19 <p>
     20   Android 6.0 gives you an opportunity to ensure your apps work with the next
     21   version of the platform. This preview includes a number of APIs and behavior changes that can
     22   impact your app, as described in the <a href="{@docRoot}preview/api-overview.html">API
     23   Overview</a> and <a href="{@docRoot}preview/behavior-changes.html">Behavior Changes</a>. In testing
     24   your app with the preview, there are some specific system changes that you should focus on to
     25   ensure that users have a good experience.
     26 </p>
     27 
     28 <p>
     29   This guide describes the what and how to test preview features with your app. You should
     30   prioritize testing of these specific preview features, due to their high potential impact on your
     31   app's behavior:
     32 </p>
     33 
     34 <ul>
     35   <li><a href="#runtime-permissions">Permissions</a>
     36   </li>
     37   <li><a href="#doze-standby">Doze and App Standby</a>
     38   </li>
     39   <li><a href="#ids">Auto Backup and Device Identifiers</a></li>
     40 </ul>
     41 
     42 <h2 id="runtime-permissions">Testing Permissions</h2>
     43 
     44 <p>
     45   The new <a href="{@docRoot}preview/features/runtime-permissions.html">Permissions</a> model
     46   changes the way that permissions are allocated to your app by the user. Instead of granting all
     47   permissions during the install procedure, your app must ask the user for individual permissions
     48   at runtime. For users this behavior provides more granular control over each apps activities, as
     49   well as better context for understanding why the app is requesting a specific permission. Users
     50   can grant or revoke the permissions granted to an app individually at any time. This feature of
     51   the preview is most likely to have an impact on your app's behavior and may prevent some of your
     52   app features from working, or they may work in a degraded state.
     53 </p>
     54 
     55 <p class="caution">
     56   This change affects all apps running on the new platform, even those not targeting the new
     57   platform version. The platform provides a limited compatibility behavior for legacy apps, but you
     58   should begin planning your apps migration to the new permissions model now, with a goal of
     59   publishing an updated version of your app at the official platform launch.
     60 </p>
     61 
     62 
     63 <h3 id="permission-test-tips">Test tips</h3>
     64 
     65 <p>
     66   Use the following test tips to help you plan and execute testing of your app with the new
     67   permissions behavior.
     68 </p>
     69 
     70 <ul>
     71   <li>Identify your apps current permissions and the related code paths.</li>
     72   <li>Test user flows across permission-protected services and data.</li>
     73   <li>Test with various combinations of granted/revoked permission.</li>
     74   <li>Use the {@code adb} tool to manage permssions from the command line:
     75     <ul>
     76       <li>List permissions and status by group:
     77         <pre>adb shell pm list permissions -d -g</pre>
     78       </li>
     79       <li>Grant or revoke one or more permissions using the following syntax:<br>
     80         <pre>adb shell pm [grant|revoke] &lt;permission.name&gt; ...</pre>
     81       </li>
     82     </ul>
     83   </li>
     84   <li>Analyze your app for services that use permissions.</li>
     85 </ul>
     86 
     87 <h3 id="permission-test-strategy">Test strategy</h3>
     88 
     89 <p>
     90   The permissions change affects the structure and design of your app, as well as
     91   the user experience and flows you provide to users. You should assess your apps current
     92   permissions use and start planning for the new flows you want to offer. The official release of
     93   the platform provides compatibility behavior, but you should plan on updating your app and not
     94   rely on these behaviors.
     95 </p>
     96 
     97 <p>
     98   Identify the permissions that your app actually needs and uses, and then find the various code
     99   paths that use the permission-protected services. You can do this through a combination of
    100   testing on the new platform and code analysis. In testing, you should focus on opting in to
    101   runtime permissions by changing the apps {@code targetSdkVersion} to the preview version. For
    102   more information, see <a href="{@docRoot}preview/setup-sdk.html#">Set up
    103 the Android N SDK</a>.
    104 </p>
    105 
    106 <p>
    107   Test with various combinations of permissions revoked and added, to highlight the user flows that
    108   depend on permissions. Where a dependency is not obvious or logical you should consider
    109   refactoring or compartmentalizing that flow to eliminate the dependency or make it clear why the
    110   permission is needed.
    111 </p>
    112 
    113 <p>
    114   For more information on the behavior of runtime permissions, testing, and best practices, see the
    115   <a href="{@docRoot}preview/features/runtime-permissions.html">Permissions</a> developer
    116   preview page.
    117 </p>
    118 
    119 
    120 <h2 id="doze-standby">Testing Doze and App Standby</h2>
    121 
    122 <p>
    123   The power saving features of Doze and App Standby limit the amount of background processing that
    124   your app can perform when a device is in an idle state or while your app is not in focus. The
    125   restrictions the system may impose on apps include limited or no network access,
    126   suspended background tasks, suspended Notifications, ignored wake requests, and alarms. To ensure
    127   that your app behaves properly with these power saving optimizations, you should test your app by
    128   simulating these low power states.
    129 </p>
    130 
    131 <h4 id="doze">Testing your app with Doze</h4>
    132 
    133 <p>To test Doze with your app:</p>
    134 
    135 <ol>
    136 <li>Configure a hardware device or virtual device with an Android N system image.</li>
    137 <li>Connect the device to your development machine and install your app.</li>
    138 <li>Run your app and leave it active.</li>
    139 <li>Simulate the device going into Doze mode by running the following commands:
    140 
    141 <pre>
    142 $ adb shell dumpsys battery unplug
    143 $ adb shell dumpsys deviceidle step
    144 $ adb shell dumpsys deviceidle -h
    145 </pre>
    146 
    147   </li>
    148   <li>Observe the behavior of your app when the device is re-activated. Make sure it
    149     recovers gracefully when the device exits Doze.</li>
    150 </ol>
    151 
    152 
    153 <h4 id="standby">Testing apps with App Standby</h4>
    154 
    155 <p>To test the App Standby mode with your app:</p>
    156 
    157 <ol>
    158   <li>Configure a hardware device or virtual device with an Android N system image.</li>
    159   <li>Connect the device to your development machine and install your app.</li>
    160   <li>Run your app and leave it active.</li>
    161   <li>Simulate the app going into standby mode by running the following commands:
    162 
    163 <pre>
    164 $ adb shell am broadcast -a android.os.action.DISCHARGING
    165 $ adb shell am set-idle &lt;packageName&gt; true
    166 </pre>
    167 
    168   </li>
    169   <li>Simulate waking your app using the following command:
    170     <pre>$ adb shell am set-idle &lt;packageName&gt; false</pre>
    171   </li>
    172   <li>Observe the behavior of your app when it is woken. Make sure it recovers gracefully
    173     from standby mode. In particular, you should check if your app's Notifications and background
    174     jobs continue to function as expected.</li>
    175 </ol>
    176 
    177 <h2 id="ids">Auto Backup for Apps and Device-Specific Identifiers</h2>
    178 
    179 <p>If your app is persisting any device-specific identifiers, such as Google
    180 Cloud Messaging registration ID, in internal storage,
    181 make sure to follow best practices to exclude the storage
    182 location from auto-backup, as described in <a href="{@docRoot}preview/backup/index.html">Auto
    183 Backup for Apps</a>. </p>
    184