量角器在 div 中按标签查找元素

I've got a div in an HTML Page of which the name is always known and inside this div there is an href, the details of which are not known. It could be the direct child of the parent or it could be a further grandchild. Looks something like this:

<div class="divName">
    ...
        <a href="some url">some text</a>
    ...
</div>

我知道这个 div 中只有一个链接，所以我想找到一个链接并单击它.

    element(by.classname('divName')).find('a').click();

element(by.css('.divName a')).click();

$('.divName a').click();