将更多信息附加到 RSpec 的默认失败消息中? [英] Append more info to RSpec's default failure message?

问题描述

我在这样的验证中测试了很多错误的字符串:

I'm testing a lot of bad strings on a validation like this:

['0', '3:a', 'xx:11', '-1', '-3:00', 'h', 'h2', 'h2h', 'm', 'm10', 'm10m', '2hm', 'h2m', 'hm2', '2m10h', '2m10m', '2h10h'].each do |input|
  FactoryGirl.build(:time_record, duration_string: input).should have(1).error_on('duration_string'), "Tested value was '#{input}'"
end

遗憾的是，当其中一个失败时，消息 expected 1 error on :duration_string, got 0 没有告诉我，哪个失败了.我知道我可以传递显示的第二个参数，而不是像这样的默认消息:

Sadly, when one of them fails, the message expected 1 error on :duration_string, got 0 doesn't tell me, which one failed. I know that I can pass a second argument that is displayed instead of the default message like this:

x.should have(1).error_on('duration_string'), "Tested value was '#{input}'"

但这隐藏了原始消息.有没有办法只将我自己的消息附加到原始消息而不是替换它?

But this hides the original message. Is there a way to only append my own message to the original instead of replacing it?

谢谢.

推荐答案

我是这样解决的:

['0', '3:a', 'xx:11', '-1', '-3:00', 'h', 'h2', 'h2h', 'm', 'm10', 'm10m', '2hm', 'h2m', 'hm2', '2m10h', '2m10m', '2h10h'].each do |input|
  it "does not accept #{input}" do
    FactoryGirl.build(:time_record, duration_string: input).should have(1).error_on('duration_string'), "Tested value was '#{input}'"
  end
end

通过这种方式，您还可以廉价地获得更高规格的统计数据.;)

This way you also get cheaply a higher specs count for your statistics. ;)

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