After a click on some element I expect a placeholder to disappear and another element to appear after an AJAX call is finished.
find(someLocator).click
expect(page).not_to have_css(disappearingPlaceholderLocator)
expect(page).to have_css(appearingElementLocator)
The first expectation fails though and the AJAX call is not executed.
I think this is somehow related to this SO question but I just can't figure out how.