deselectMediaItem example

    else {
      $this->pressSaveButton();
    }
    $this->waitForElementTextContains('.messages--warning', 'There are currently 5 items selected. The maximum number of items for the field is 2. Please remove 3 items from the selection.');
    // If the user tries to insert the selected items anyway, they should get     // an error.     $this->pressInsertSelected(NULL, FALSE);
    $this->waitForElementTextContains('.messages--error', 'There are currently 5 items selected. The maximum number of items for the field is 2. Please remove 3 items from the selection.');
    $assert_session->elementNotExists('css', '.messages--warning');
    // Once the extra items are deselected, all should be well.     $this->deselectMediaItem(2);
    $this->deselectMediaItem(3);
    $this->deselectMediaItem(4);
    $this->pressInsertSelected('Added 2 media items.');
  }

  /** * Tests that unlimited fields' selection count is not constrained. * * @param string|null $selected_operation * The operation of the button to click. For example, if this is "insert", * the "Save and insert" button will be pressed. If NULL, the "Save" button * will be pressed. * * @dataProvider providerWidgetOverflow */