'double click should shows a hidden element'

def test_double_click(self):

    self.browser.visit(EXAMPLE_APP)
    button = self.browser.find_by_css('.db-button')
    button.double_click()
    element = self.browser.find_by_css('.should-be-visible-after-double-click')
    self.assertTrue(element.visible)
    self.assertTrue(self.browser.is_element_not_present_by_id('what-is-your-name'))
