1472798 - Intermittent test_about_private_browsing.py TestAboutPrivateBrowsing.testCheckAboutPrivateBrowsing | NoSuchElementException: Unable to locate element: learnMore

Status: RESOLVED DUPLICATE of bug 1373561

(Testing :: Firefox UI Tests, defect)

Description

[Andreea Pavel [:apavel]]

+++ This bug was initially created as a clone of Bug #1373561 +++


Central as Beta simulation

Treeherder link: https://treeherder.mozilla.org/#/jobs?repo=try&revision=1a21c236cc8403bb7de33d14ba83848b201e1870&filter-resultStatus=testfailed&filter-resultStatus=busted&filter-resultStatus=exception&filter-resultStatus=retry&filter-resultStatus=usercancel&filter-resultStatus=runnable&selectedJob=185964006

Failure log: https://treeherder.mozilla.org/logviewer.html#?job_id=185964006&repo=try&lineNumber=39095

14:07:37     INFO -  1530540457045	Marionette	TRACE	42 -> [0,289,"Marionette:SetContext",{"value":"chrome"}]
14:07:37     INFO -  1530540457046	Marionette	TRACE	42 <- [1,289,null,{"value":null}]
14:07:37     INFO -  1530540457046	Marionette	TRACE	42 -> [0,290,"WebDriver:TakeScreenshot",{"highlights":null,"full":true,"hash":false,"id":null,"scroll":true}]
14:07:37     INFO -  1530540457046	Marionette	TRACE	42 <- [1,290,{"error":"no such window","message":"Browsing context has been discarded","stacktrace":"WebDriverError@chrome://marion ... et@chrome://marionette/content/server.js:245:8\n_onJSONObjectReady/<@chrome://marionette/content/transport.js:500:9\n"},null]
14:07:37     INFO -  1530540457047	Marionette	TRACE	42 -> [0,291,"Marionette:SetContext",{"value":"chrome"}]
14:07:37  WARNING - Failed to gather test failure debug: Browsing context has been discarded
14:07:37  WARNING - stacktrace:
14:07:37  WARNING - 	WebDriverError@chrome://marionette/content/error.js:178:5
14:07:37  WARNING - 	NoSuchWindowError@chrome://marionette/content/error.js:410:5
14:07:37  WARNING - 	assert.that/<@chrome://marionette/content/assert.js:405:13
14:07:37  WARNING - 	assert.open@chrome://marionette/content/assert.js:161:10
14:07:37  WARNING - 	GeckoDriver.prototype.takeScreenshot@chrome://marionette/content/driver.js:2895:13
14:07:37  WARNING - 	despatch@chrome://marionette/content/server.js:297:20
14:07:37  WARNING - 	execute@chrome://marionette/content/server.js:271:11
14:07:37  WARNING - 	onPacket/<@chrome://marionette/content/server.js:246:15
14:07:37  WARNING - 	onPacket@chrome://marionette/content/server.js:245:8
14:07:37  WARNING - 	_onJSONObjectReady/<@chrome://marionette/content/transport.js:500:9
14:07:37  WARNING - 
14:07:37     INFO -  1530540457047	Marionette	TRACE	42 <- [1,291,null,{"value":null}]
14:07:37     INFO - TEST-UNEXPECTED-ERROR | testing\firefox-ui\tests\functional\private_browsing\test_about_private_browsing.py TestAboutPrivateBrowsing.testCheckAboutPrivateBrowsing | NoSuchElementException: Unable to locate element: learnMore
14:07:37     INFO - stacktrace:
14:07:37     INFO - 	WebDriverError@chrome://marionette/content/error.js:178:5
14:07:37     INFO - 	NoSuchElementError@chrome://marionette/content/error.js:388:5
14:07:37     INFO - 	element.find/</<@chrome://marionette/content/element.js:341:16
14:07:37     INFO - Traceback (most recent call last):
14:07:37     INFO -   File "Z:\task_1530539952\build\venv\lib\site-packages\marionette_harness\marionette_test\testcases.py", line 159, in run
14:07:37     INFO -     testMethod()
14:07:37     INFO -   File "Z:\task_1530539952\build\tests\firefox-ui\tests\testing\firefox-ui\tests\functional\private_browsing\test_about_private_browsing.py", line 58, in testCheckAboutPrivateBrowsing
14:07:37     INFO -     tab = pb_window.tabbar.open_tab(trigger=tab_opener)
14:07:37     INFO -   File "Z:\task_1530539952\build\venv\lib\site-packages\firefox_puppeteer\ui\browser\tabbar.py", line 131, in open_tab
14:07:37     INFO -     trigger(self.selected_tab)
14:07:37     INFO -   File "Z:\task_1530539952\build\tests\firefox-ui\tests\testing\firefox-ui\tests\functional\private_browsing\test_about_private_browsing.py", line 55, in tab_opener
14:07:37     INFO -     link = tab.marionette.find_element(By.ID, 'learnMore')
14:07:37     INFO -   File "Z:\task_1530539952\build\venv\lib\site-packages\marionette_driver\marionette.py", line 1791, in find_element
14:07:37     INFO -     body, key="value")
14:07:37     INFO -   File "Z:\task_1530539952\build\venv\lib\site-packages\marionette_driver\decorators.py", line 26, in _
14:07:37     INFO -     return func(*args, **kwargs)
14:07:37     INFO -   File "Z:\task_1530539952\build\venv\lib\site-packages\marionette_driver\marionette.py", line 761, in _send_message
14:07:37     INFO -     self._handle_error(err)
14:07:37     INFO -   File "Z:\task_1530539952\build\venv\lib\site-packages\marionette_driver\marionette.py", line 781, in _handle_error
14:07:37     INFO -     raise errors.lookup(error)(message, stacktrace=stacktrace)
14:07:37     INFO - TEST-INFO took 842ms

Comment 1

[Henrik Skupin [:whimboo][⌚️UTC+2]]

Andrea, since which beta simulation does this failure appear? The very first one for Firefox 62?

Comment 2

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

Has only failed once.

Comment 3

[Henrik Skupin [:whimboo][⌚️UTC+2]]

Then it is just bug 1373561.

Comment 4

[Intermittent Failures Robot]

1 failures in 622 pushes (0.002 failures/push) were associated with this bug in the last 7 days.    

Repository breakdown:
* try: 1

Platform breakdown:
* windows7-32-devedition: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1472798&startday=2018-07-02&endday=2018-07-08&tree=trunk