ruby – 如何测试块是否已经产生？

block = lambda { 
    #some stuff 
}
block.should_receive(:call)

get_data_with_timeout(1, &block)

def get_data_with_timeout(timeout)
    begin
        timeout(timeout) {
            data = get_data
            yield data #do stuff
        }
    rescue Timeout::Error
        #timeout!
    end
end

基本上我想检查一下,如果没有超时,则调用该块,反之亦然.这在rspec中是否可行？

block_called = false
get_data_with_timeout(1) do
    block_called = true
end
block_called.should be_true