The Tor Browser: testing/mozbase/mozdevice/sut

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 # SUT Agent tests

     3 * In order to run these tests you need to have a phone running SUT Agent

     4 connected.

     6 * Make sure you can reach the device's TCP 20700 and 20701 ports. Doing

     7 *adb forward tcp:20700 tcp:20700 && adb forward tcp:20701 tcp:20701* will

     8 forward your localhost 20700 and 20701 ports to the ones on the device.

    10 * You might need some common tools like cp. Use the `setup-tools.sh` script

    11 to install them. It requires `$ADB` to point to the `adb` binary on the system.

    13 * Make sure the SUTAgent on the device is running.

    15 * Run: python runtests.py

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