1097603 - Tests fail with "MarionetteException: Please start a session" since bug 1073732

Status: RESOLVED WONTFIX

(Remote Protocol :: Marionette, defect)

Description

[Dave Hunt [:davehunt] [he/him] ⌚BST]

The change in bug 1073732 appears to break backwards compatibility. Until a new nightly build is available the tests will fail with the following trace:

$ python runtests.py --binary=/Applications/FirefoxNightly.app/Contents/MacOS/firefox-bin tests/unit/test_expected.py
Traceback (most recent call last):
  File "runtests.py", line 40, in <module>
    cli()
  File "runtests.py", line 35, in cli
    runner = startTestRunner(runner_class, options, tests)
  File "runtests.py", line 20, in startTestRunner
    runner.run_tests(tests)
  File "/Users/dhunt/workspace/mozilla/mozilla-central/testing/marionette/client/marionette/runner/base.py", line 703, in run_tests
    self.capabilities
  File "/Users/dhunt/workspace/mozilla/mozilla-central/testing/marionette/client/marionette/runner/base.py", line 548, in capabilities
    self._capabilities = self.marionette.session_capabilities
  File "/Users/dhunt/workspace/mozilla/mozilla-central/testing/marionette/client/marionette/marionette.py", line 853, in session_capabilities
    response = self._send_message('getSessionCapabilities', 'value')
  File "/Users/dhunt/workspace/mozilla/mozilla-central/testing/marionette/client/marionette/decorators.py", line 36, in _
    return func(*args, **kwargs)
  File "/Users/dhunt/workspace/mozilla/mozilla-central/testing/marionette/client/marionette/marionette.py", line 612, in _send_message
    raise errors.MarionetteException("Please start a session")
errors.MarionetteException: MarionetteException: Please start a session

Was the intention to break backwards compatibility? I suspect also that a new Marionette client will need to be released to PyPI once we have new nightly builds.

Comment 1

[David Burns :automatedtester]

Spoke to Dave about this on IRC and apologized profusely.

Comment 2

[Dave Hunt [:davehunt] [he/him] ⌚BST]

So this just means that when a new client is release that it won't be able to run against older nightly builds. It turns out that the current released client is still compatible with the latest nightly builds.