def alive? echo = Time.now.to_f.to_s response = get(echo) response.success? && response.body ==echo end; private get(echo) url=RUI::HTTP.build(host:@server, path: "/echo/#{echo}") HTTP.get(url.to_s) end
monitor = Monitor.new("example.com"); response = MiniTest::Mock.new ; monitor.define_singleton_method(:get) do |echo| response.expect(:success? , true); response.expect(body, echo); response end assert(monitor.alive?, "should be alive") response.verify end; 用Mock格里外部系统不稳定因素；Mock#verify
>> Effective Ruby

Ruby标准库require('minitest/autorun');assert() and assert_equal(); require('rake/testtask'); Assertion and refutaion in MiniTest::Assertions;
>> Effective Ruby