如何在Rails的功能测试中测试cookies状态？

Question

如何测试使用cookie的给定控制器操作？

如何在功能测试中设置cookie以及如何获取它们？

Answer 1

这是on Rails的2.3.8工程（行注释掉使测试不及格）的代码：

test 'cookie testing should work' do 
    @request.cookies['foo'] = 'Foo' 
    # cookies['foo'] = 'Foo' 
    # this does not work to: CGI::Cookie.new('foo', 'bar') 
    get :index # does: cookies[:foo] = (cookies['foo'] || "") + " bar!" 
    # the cookie key in the controller can by a symbol, but not in the test 
    assert_response :success 
    assert_not_nil cookies['foo'], "Cookie with foo key should not be nil. Debug: Cookies=#{cookies.inspect}" 
    assert_equal "Foo bar!", cookies['foo'], "Debug: Cookies=#{cookies.inspect}" 
    # assert_not_nil @cookies['foo'], "Cookie with foo key should not be nil. Debug: Cookies=#{@cookies.inspect}" 
    # assert_not_nil @request.cookies['foo'], "Cookie with foo key should not be nil. Debug: Cookies=#{@request.cookies.inspect}" 
    # assert_equal "Foo bar!", @request.cookies['foo'], "Debug: Cookies=#{@request.cookies.inspect}" 
end 

我必须花一些相当长的时间寻找答案。