1215499 - TEST-UNEXPECTED-ERROR | test_about_private_browsing.py TestAboutPrivateBrowsing.testCheckAboutPrivateBrowsing | NoSuchElementException: NoSuchElementException: Unable to locate element: learnMore

Status: RESOLVED WORKSFORME

(Testing :: Firefox UI Tests, defect)

Description

[Henrik Skupin [:whimboo][⌚️UTC+2]]

Traceback (most recent call last):
  File "c:\jenkins\workspace\release-mozilla-release_functional\venv\lib\site-packages\marionette\marionette_test.py", line 296, in run
    testMethod()
  File "c:\jenkins\workspace\release-mozilla-release_functional\venv\lib\site-packages\firefox_ui_harness\decorators.py", line 15, in wrapper
    return target(self, *args, **kwargs)
  File "c:\jenkins\workspace\release-mozilla-release_functional\venv\Lib\site-packages\firefox_ui_tests\functional\private_browsing\test_about_private_browsing.py", line 52, in testCheckAboutPrivateBrowsing
    tab = pb_window.tabbar.open_tab(trigger=tab_opener)
  File "c:\jenkins\workspace\release-mozilla-release_functional\venv\lib\site-packages\firefox_puppeteer\ui\tabbar.py", line 130, in open_tab
    trigger(self.selected_tab)
  File "c:\jenkins\workspace\release-mozilla-release_functional\venv\Lib\site-packages\firefox_ui_tests\functional\private_browsing\test_about_private_browsing.py", line 49, in tab_opener
    link = tab.marionette.find_element(By.ID, 'learnMore')
  File "c:\jenkins\workspace\release-mozilla-release_functional\venv\lib\site-packages\marionette_driver\marionette.py", line 1713, in find_element
    return self._send_message("findElement", body, key="value")
  File "c:\jenkins\workspace\release-mozilla-release_functional\venv\lib\site-packages\marionette_driver\decorators.py", line 36, in _
    return func(*args, **kwargs)
  File "c:\jenkins\workspace\release-mozilla-release_functional\venv\lib\site-packages\marionette_driver\marionette.py", line 716, in _send_message
    self._handle_error(resp)
  File "c:\jenkins\workspace\release-mozilla-release_functional\venv\lib\site-packages\marionette_driver\marionette.py", line 770, in _handle_error
    raise errors.lookup(error)(message, stacktrace=stacktrace)

NoSuchElementException: NoSuchElementException: Unable to locate element: learnMore

Comment 1

[[SV Manager] Florin Mezei, QA (:FlorinMezei)]

Also encountered while running the ESR 38.4.0 tests: http://mm-ci-production.qa.scl3.mozilla.com:8080/job/release-mozilla-esr38_functional/lastSuccessfulBuild/artifact/report.html.

Comment 2

[Henrik Skupin [:whimboo][⌚️UTC+2]]

Attachment: screenshot.png

That's the screenshot of a ru build when this failure happens. I would have to compare it with an en-US build to see what's the difference is.

Comment 3

[Henrik Skupin [:whimboo][⌚️UTC+2]]

The screenshot does not make any sense. It's for the about:privatebrowsing page being open in a non-privatebrowsing window. But in the test we open a private browsing window and even verify that it has been opened before the failure is happening. I feel that the screenshot is from the wrong chrome window.

David or Andreas, maybe you can answer that immediately without that I have to dig into Marionette code. Does Marionette take the screenshot from the currently selected chrome window or does it take it always from the original window?

Comment 4

[Andreas Tolfsen ❲:ato❳]

(In reply to Henrik Skupin (:whimboo) from comment #3)
> David or Andreas, maybe you can answer that immediately without that I have
> to dig into Marionette code. Does Marionette take the screenshot from the
> currently selected chrome window or does it take it always from the original
> window?

It takes a screenshot of the current window: https://dxr.mozilla.org/mozilla-central/source/testing/marionette/driver.js?from=marionette%2Fdriver.js#2550

Comment 5

[Intermittent Failures Robot]

11 automation job failures were associated with this bug in the last 7 days.

Repository breakdown:
* mozilla-esr38: 6
* mozilla-aurora: 5

Platform breakdown:
* windowsxp: 2
* windows7-64: 2
* linux64: 2
* linux32: 2
* windows8-64: 1
* windows8-32: 1
* windows7-32: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1215499&startday=2015-10-26&endday=2015-11-01&tree=all

Comment 6

[Henrik Skupin [:whimboo][⌚️UTC+2]]

It looks like that only the ru locale is affected by this bug for the last couple of days. I will have a look and check if this might be localization dependent.

Comment 7

[Intermittent Failures Robot]

22 automation job failures were associated with this bug in the last 7 days.

Repository breakdown:
* mozilla-aurora: 22

Platform breakdown:
* windows8-64: 9
* windows7-64: 9
* windows8-32: 4

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1215499&startday=2015-11-02&endday=2015-11-08&tree=all

Comment 8

[Henrik Skupin [:whimboo][⌚️UTC+2]]

No failure in the last 2 months. I'm going to close this bug as WFM.

Comment 9

[Henrik Skupin [:whimboo][⌚️UTC+2]]

ESR38 is still affected.

Comment 10

[Henrik Skupin [:whimboo][⌚️UTC+2]]

Firefox 38.xESR reached its end of life. No other official release will follow. I do not see a reason to fix this bug.