我如何測試RSpec匹配器has_content在頁面上找到的匹配數量？

Question

我基本上試圖獲得「has_content？」的功能或者「should have_content」匹配器，該選項：count提供了has_css？匹配器。 。

Answer 1

你可以嘗試像多數民衆贊成所有（ 'A'）長度

下面是幾個例子：

describe 'my awesome page' do 
    before :each do 
    visit root_path 
    end 

    # css just for querying DOM 
    it 'number of titles should be huge' do 
    page.all(:css,'h2.awesome_header').length.should have_at_least(3).items 
    end 
    it 'has exactly 4 div elements' do 
    page.all(:css,'div.awesome_class').length.should == 4 
    end 

    # For querying content you can try :xpath instead :css. 
    it 'has paragraps with text' do 
    page.all(:xpath, '//div[contains(., "t")]').length.should == 9 
    end 
end 

更新：

我找到更優雅的方式來做這個。 檢查文檔在這裏：http://rubydoc.info/github/jnicklas/capybara/master/Capybara/Node/Finders:all 這裏工作示例

page.all(:css, 'p', :text => /.*wellcome.*/).length.should == 2