Android WebView

To run WPT on WebView on an Android device, some additional set-up is required.

Currently, Android WebView support is experimental.

• Please check Chrome for Android for the common instructions for Android support first.

• Install an up-to-date version of system webview shell:

  • Go to chromium-browser-snapshots
  • Find the subdirectory with the highest number and click it.
  • Download chrome-android.zip file and unzip it.
  • Install SystemWebViewShell.apk.
  • On emulator, system webview shell may already be installed by default. Then you may need to remove the existing apk:
    • Choose a userdebug build.
    • Run an emulator with writable system partition from command line

• If you have an issue with ChromeDriver version, try removing _venv/bin/chromedriver such that wpt runner can install a matching version automatically. Failing that, please check your environment path and make sure that no other ChromeDriver is used.

Example command line:

./wpt run --test-type=testharness android_webview <TESTS>

• Note that there is no support for channel or automatic installation. The test will be run against the current WebView version installed on the device.

• Reftests are not supported at the moment.