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[Robert Lyon <robertl@xxxxxxxxxxxxxxx>]

** Changed in: mahara
    Milestone: 16.10.0 => 16.10.1

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https://bugs.launchpad.net/bugs/1582535

Title:
  Behat "Element is not clickable" error when a page is too long to fit
  in the window

Status in Mahara:
  In Progress

Bug description:
  I noticed this while working no the Behat tests for threaded comments.
  Once I had enough comments that some of them were below the bottom of
  the page, I would get this error whenever I ran the automated tests:

      When I delete the "Comment 1-1." row                                           # BehatGeneral::i_delete_the_row()
        Element is not clickable at point (905, 12.300003051757812). Other element would receive the click: <div class="site-message alert alert-info" role="alert"></div>
        Command duration or timeout: 78 milliseconds
        Build info: version: '2.52.0', revision: '4c2593c', time: '2016-02-11 19:06:42'
        System info: host: 'vegas', ip: '127.0.1.1', os.name: 'Linux', os.arch: 'amd64', os.version: '3.13.0-86-generic', java.version: '1.7.0_21'
        Session ID: 6c32356d-5179-4612-99ee-e15f3ec90c83
        Driver info: org.openqa.selenium.firefox.FirefoxDriver
        Capabilities [{platform=LINUX, acceptSslCerts=true, javascriptEnabled=true, cssSelectorsEnabled=true, databaseEnabled=true, browserName=firefox, handlesAlerts=true, nativeEvents=false, webStorageEnabled=true, rotatable=false, locationContextEnabled=true, applicationCacheEnabled=true, takesScreenshot=true, version=46.0}] (WebDriver\Exception\UnknownError)

  Confusingly, if I put a pause in the test and manually inspected the
  page, I could see that the element was visible, and if I let the test
  resume after pausing, it always worked! But then when running by
  itself, without me manually inspecting it, it would crash again.

  Eventually I realized this is because the Behat Mink Selenium
  webdriver we're currently using, is trying to click on the element
  like a mouse would, rather than firing a "click" event like jQuery
  would do. And, because I had made several comments, the button I
  wanted to click on was not actually visible in the window. When I
  manually inspected it, I scrolled the button into the window, which is
  why it worked.

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