compatibility/cts/setup.html

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<h2 id=physical_environment>Physical environment</h2>
<h3 id=wifi>Wi-Fi and IPv6</h3>
<p>CTS tests require a Wi-Fi network that supports IPv6, can treat the Device
Under Test (DUT) as an isolated client, and has an internet
connection. An isolated client refers to a
configuration where the DUT does not have visibility to the
broadcast/multinetwork messages on that subnetwork, either by a Wi-Fi AP
configuration or by running the DUT on an isolated sub-network without
other devices being connected.</p>

<p>If you don't have access to a native IPv6 network, an IPv6 carrier network,
or a VPN to pass some tests depending on IPv6, you may instead use a Wi-Fi
access point and an IPv6 tunnel. See Wikipedia <a
href="http://en.wikipedia.org/wiki/List_of_IPv6_tunnel_brokers">list of IPv6
tunnel brokers</a>.</p>

<h3 id=ble_beacons>Bluetooth LE beacons</h3>
<p>If the DUT supports the Bluetooth LE feature, then at least three
Bluetooth LE beacons should be placed within five meters of the DUT for Bluetooth
LE scan testing. Those beacons can be any kind, do not need to be
configured or emit anything specific, and can include iBeacon,
Eddystone, or even devices simulating BLE beacons.</p>

<h2 id=desktop_setup>Desktop machine setup</h2>
<p>CTS currently supports 64-bit Linux and Mac OS host machines.</p>

<h3 id=adb>ADB and AAPT</h3>
<p>Before running the CTS, make sure you have recent versions of both <a
href="http://developer.android.com/tools/help/adb.html">Android Debug
Bridge (adb)</a> and <a
href="http://developer.android.com/guide/topics/manifest/uses-feature-element.html#testing">Android
Asset Packaging Tool (AAPT)</a> installed and those tools' location added
to the system path of your machine.</p>

<p>To install ADB, download the <a
href="http://developer.android.com/sdk/index.html#Other">Android SDK Tools</a>
package for your operating system, open it, and follow the instructions in the
included README file. For troubleshooting information, see <a
href="http://developer.android.com/sdk/installing/index.html?pkg=tools">Installing
the Stand-alone SDK Tools</a>.</p>

<p>Ensure <code>adb</code> and <code>aapt</code> are in your system path. The
following command assumes you've opened the package archive in your home
directory:</p>
<hr>
<pre class="devsite-terminal devsite-click-to-copy">
export PATH=$PATH:$HOME/android-sdk-linux/build-tools/&lt;version&gt;
</pre>

<p class="note"><strong>Note:</strong> Please ensure your starting path and
directory name are correct.</p>

<h3 id=JDK>Java Development Kit (JDK)</h3>
<p>Install the proper version of the Java Development Kit (JDK). For Android 7.0&mdash;
</p>
<ul>
  <li>On Ubuntu, use <a href="http://openjdk.java.net/install/">OpenJDK 8</a>.
  <li>On Mac OS, use <a
  href="http://www.oracle.com/technetwork/java/javase/downloads/java-archive-javase8-2177648.html#jdk-8u45-oth-JPR">jdk
  8u45 or newer</a>.</li>
</ul>
<p>
For details, see the <a href="https://source.android.com/source/requirements.html#jdk">JDK
requirements</a>.
</p>

<h3 id=CTS_files>CTS files</h3>

<p><a href="downloads.html">Download</a> and open the CTS
packages matching your devices' Android version and all the Application Binary
Interfaces (ABIs) your devices support.</p>

<p>Download and open the latest version of the <a
href="downloads.html#cts-media-files">CTS Media
Files</a>.</p>

<h3 id=system_detect>Device detection</h3>
<p>Follow the step to <a
href="http://developer.android.com/tools/device.html#setting-up">set up your
system to detect your device</a>, such as creating a <code>udev</code> rules
file for Ubuntu Linux.</p>

<h2 id=device_setup>Android device setup</h2>

<h3 id=user_builds>User builds</h3>

<p>A compatible device is defined as a device with a user/release-key signed
build, so your device should be running a system image based on the known to be
compatible user build (Android 4.0 and later) from <a
href="/source/build-numbers.html">Codenames, Tags, and Build
Numbers</a>.<br>

<p class="caution"><strong>Caution:</strong> When used to confirm Android
compatibility of your final system image, CTS must be executed on devices with
a user build.</p>

<h3 id=first-api-level>First API level build property</h3>

<p>Certain CTS requirements depend on the build a device was originally shipped
with. For example, devices that originally ship with earlier builds may be excluded from
system requirements that apply to devices that ship with later builds.</p>

<p>To make this information available to CTS, device manufacturers may define
the build-time property: <code>ro.product.first_api_level</code>. The value of this
property is the first API level the device was commercially launched with.</p>

<p>OEMs can add <code>PRODUCT_PROPERTY_OVERRIDES</code> into their device.mk file to set
this property, as shown in the following example: </p>

<pre class="devsite-click-to-copy">
#ro.product.first_api_level indicates the first api level, device has been commercially launched on.
PRODUCT_PROPERTY_OVERRIDES +=\
ro.product.first_api_level=21
</pre>

<aside class="note">
<b>Note:</b> The property ro.product.first_api_level should be unset (0) for the first build of a
product, and set to the correct API level value for all subsequent builds. This
way the property can correctly identify a new product, and we have lost no
information about the first API level of the product (0 value implies
ro.product.first_api_level = Build.VERSION.SDK_INT).
</aside>

<h3 id=cts-shim-apps>CTS Shim apps</h3>

<p> Android 7.0 includes the following pre-built apps (built from <a
href="https://android.googlesource.com/platform/frameworks/base/+/master/packages/CtsShim/build/">this
source</a>) which do not contain any code except for the manifest: </p>

<ul>
  <li><code><a href="https://android.googlesource.com/platform/frameworks/base/+/android-7.0.0_r1/packages/CtsShim/CtsShim.apk">
  frameworks/base/packages/CtsShim/CtsShim.apk</a></code><br>
  This apk file is copied to <code>/system/app/CtsShimPrebuilt.apk</code>
  on the system image.
  <li><code><a href="https://android.googlesource.com/platform/frameworks/base/+/android-7.0.0_r1/packages/CtsShim/CtsShimPriv.apk">
  frameworks/base/packages/CtsShim/CtsShimPriv.apk</a></code><br>
  This apk file is copied to <code>/system/priv-app/CtsShimPrivPrebuilt.apk</code>
  on the system image.</li>
</ul>

<p> CTS uses these apps to test privileges and permissions. To pass the tests, you must
preload the apps into the appropriate directories on the system image without
re-signing them.</p>

<h3 id=storage_requirements>Storage requirements</h3>
<p>The CTS media stress tests require video clips to be on external storage
(<code>/sdcard</code>). Most of the clips are from <a
href="https://peach.blender.org/">Big Buck Bunny</a> which is copyrighted by
the Blender Foundation under the<a
href="http://creativecommons.org/licenses/by/3.0/">Creative Commons Attribution 3.0 license.</a></p>
<p>The required space depends on the maximum video playback resolution supported
  by the device (See section 5 in the compatibility definition document for the
  platform version of the required resolutions.) Note that the video playback
  capabilities of the device under test will be checked via the <code>android.media.CamcorderProfile</code> APIs for earlier versions of Android and the <code>android.media.MediaCodecInfo.CodecCapabilities</code> APIs from Android 5.0.</p>
<p>Here are the storage requirements by maximum video playback resolution:</p>
<ul>
  <li>480x360: 98MB
  <li>720x480: 193MB
  <li>1280x720: 606MB
  <li>1920x1080: 1863MB
</ul>

<h3 id=screen_storage>Screen and storage</h3>
<ol>
<li>Any device that does not have an embedded screen needs to be connected to a screen.</li>
<li>If the device has a memory card slot, plug in an empty SD card. <em>Use an
SD card that supports Ultra High Speed (UHS) Bus with SDHC or SDXC capacity or
one with at least speed class 10 or higher to ensure it can pass the CTS.</em>
<p class="warning"><strong>Warning:</strong> CTS may modify/erase data on the SD card plugged into the device.</p>
</li>
<li>If the device has SIM card slots, plug in an activated SIM card to each slot. If the device supports SMS, each SIM card should have its own number field populated.</li>
</li>
</ol>

<h3 id=developer_uicc>Developer UICC</h3>

<p>In order to run CTS carrier API tests, the device needs to has a SIM card
with carrier privilege rules on it. See <a
href="/devices/tech/config/uicc.html#prepare_uicc">Preparing
the UICC</a>.</p>

<h2 id=config_device>Android device configuration</h2>
<ol>
  <li>Factory data reset the device: <strong>Settings > Backup &amp; reset > Factory data reset</strong>
    <p class="warning"><strong>Warning:</strong> This will erase all user data from the device.</em></p>
  <li>Set your device's language to English (<strong>United States</strong>) from: <strong>Settings > Language
    & input > Language</strong>
  <li>Turn on the location setting if there is a GPS or Wi-Fi / Cellular network
    feature on the device: <strong>Settings &gt; Location &gt; On</strong>
  <li>Connect to a Wi-Fi network that supports IPv6, can treat the Device
Under Test (DUT) as an <em>isolated client</em> (see the <a
href="#physical_environment">Physical Environment</a> section above), and has an
internet connection: <strong>Settings > Wi-Fi</strong>
  <li>Make sure no lock pattern or password is set on the device: <strong>Settings &gt; Security &gt; Screen
    lock &gt; None</strong>
  <li>Enable <strong>USB debugging</strong> on your device: <strong>Settings &gt; Developer options &gt; USB debugging</strong>.
       <p class="note"><strong>Note:</strong> On Android 4.2 and later, <strong>Developer
        options</strong> is hidden by default. To make them available, go
        to <strong>Settings &gt; About phone</strong> and tap <strong>Build number</strong>
        seven times. Return to the previous screen to find <strong>Developer
        options</strong>. See <a
        href="http://developer.android.com/studio/run/device.html#developer-device-options">Enabling
        On-device Developer Options</a> for additional details.</p>
       <li>Make sure the time is set to 12-hour format: <strong>Settings > Date & time > Use 24-hour format > Off</strong>
  <li>Select: <strong>Settings &gt; Developer options &gt; Stay Awake &gt; On</strong>
  <li>Select: <strong>Settings > Developer options > Allow mock locations &gt; On</strong>
    <p class="note"><strong>Note:</strong> This mock locations setting is applicable only in Android 5.x and 4.4.x.</p>
  <li>Select: <strong>Settings > Developer options > Verify apps over USB > Off</strong>
    <p class="note"><strong>Note:</strong> This verify apps step became required in Android 4.2.</p>
  <li>Launch the browser and dismiss any startup/setup screen.
  <li>Connect the desktop machine that will be used to test the device with a USB cable
    <p class="note"><strong>Note:</strong> When you connect a device running Android 4.2.2 or later
    to your computer, the system shows a dialog asking whether to accept an RSA key that allows
    debugging through this computer. Select <em>Allow USB debugging</em>.</p>
  <li> Install and configure helper apps on the device.
<p class="note"><strong>Note:</strong> For CTS versions 2.1 R2 through 4.2 R4</em>, set up your device (or emulator)
to run the accessibility tests with:<br>
<code>adb install -r android-cts/repository/testcases/CtsDelegatingAccessibilityService.apk</code><br>
On the device, enable: <strong>Settings > Accessibility > Accessibility >
Delegating Accessibility Service</strong></p>
<p class="note"><strong>Note:</strong> For CTS versions prior to 7.0, on devices that declare
<code>android.software.device_admin</code>, set up your device to run
the device administration test using:<br>
<code>adb install -r android-cts/repository/testcases/CtsDeviceAdmin.apk</code><br>
<p>
In Settings > Security > Select device administrators, enable the two
<code>android.deviceadmin.cts.CtsDeviceAdminReceiver*</code> device
administrators. Ensure the
<code>android.deviceadmin.cts.CtsDeviceAdminDeactivatedReceiver</code> and any
other preloaded device administrators remain disabled.
</p>
<li>Copy the CTS media files to the device as follows:
<p class="note"><strong>Note:</strong> For CTS 2.3 R12 and later, if the
device supports video codecs, the CTS media files must be copied to the
device.</p>
<ul>
  <li>Navigate (cd) to the path the media files are downloaded and unzipped to.
  <li>Change the file permissions: <code>chmod u+x copy_media.sh</code>
  <li>Run <code>copy_media.sh</code>:
    <ul>
      <li>To copy clips up to a resolution of 720x480, run: <code>./copy_media.sh 720x480</code>
      <li>If you are not sure about the maximum resolution, try <code>./copy_media.sh all</code> so that all files are copied.
      <li>If there are multiple devices under adb, add the -s (serial) option to the end.
        For example, to copy up to 720x480 to the device with serial 1234567, run: <code>./copy_media.sh 720x480 -s 1234567</code>
    </ul>
</ul>
</ol>

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