[Bug 1417966] Re: adt-run does not work with autopilot on emulator

[Martin Pitt]

Indeed I don't get the weird error message from comment 2 with chmod 666
/dev/uinput. Can you confirm that this works for you on a fresh
emulator?

  adt-run --setup-commands 'mount -o remount,ro /; chmod 666
/dev/uinput' -B ubuntu-sanity-tests// --- ssh -s adb

This unpacks the test deps and starts running the tests here, and just
fails due to the sudo password problem.

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https://bugs.launchpad.net/bugs/1417966

Title:
  adt-run does not work with autopilot on emulator

Status in autopkgtest package in Ubuntu:
  Incomplete

Bug description:
  
  When trying to run autopilot tests (lp:ubuntu-sanity-tests) on the ubuntu emulator, the test fails with the following error. If the autopilot tests are installed and run directly on the emulator, they will work ok. This problem only happens when trying to use adt-run:

  Traceback (most recent call last):
    File "/tmp/adt-run.tQuWXi/build.KbZ/real-tree/ubuntu_sanity_tests/tests/test_edges_demo.py", line 41, in setUp
      super().setUp()
    File "/tmp/adt-run.tQuWXi/build.KbZ/real-tree/ubuntu_sanity_tests/tests/base.py", line 42, in setUp
      super().setUp()
    File "/tmp/adt-run.tQuWXi/deps/usr/lib/python3/dist-packages/unity8/shell/tests/__init__.py", line 164, in setUp
      _uinput._touch_device = _uinput.create_touch_device()
    File "/tmp/adt-run.tQuWXi/deps/usr/lib/python3/dist-packages/autopilot/utilities.py", line 265, in wrapped
      return fn(*args, **kwargs)
    File "/tmp/adt-run.tQuWXi/deps/usr/lib/python3/dist-packages/autopilot/input/_uinput.py", line 235, in create_touch_device
      version=0x2, devnode=_get_devnode_path())
    File "/tmp/adt-run.tQuWXi/deps/usr/lib/python3/dist-packages/evdev/uinput.py", line 66, in __init__
      self._verify()
    File "/tmp/adt-run.tQuWXi/deps/usr/lib/python3/dist-packages/evdev/uinput.py", line 186, in _verify
      raise UInputError(msg.format(self.devnode))
  evdev.uinput.UInputError: "/dev/uinput" cannot be opened for writing

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