How to assert number of elements using Capybara with proper error message?

I know that in Capybara, you can do something like this: page.should have_css("ol li", :count => 2) However, assuming that page has for instance only one matching element, the error is not very descriptive: 1) initial page load shows greetings Failure/Error: page.should have_css("ol li", :count => 2) expected css "ol li" to return something Instead of this rather obscure error message, is there a

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これは使える／“expect(page).to have_selector('input', count: 12)”