RSpec 中 it 块和指定块之间的区别 [英] Difference between an it block and a specify block in RSpec

问题描述

RSpec 中的 it 块和指定块有什么区别?

What is the difference between an it block and a specify block in RSpec?

subject { MovieList.add_new(10) }

specify { subject.should have(10).items }
it { subject.track_number.should == 10}

他们似乎做同样的工作.只是检查以确保.

They seem to do the same job. Just checking to be sure.

推荐答案

方法是 相同;提供它们是为了根据您的测试主体使英文规范阅读得更好.考虑这两个:

The methods are the same; they are provided to make specs read in English nicer based on the body of your test. Consider these two:

describe Array do
  describe "with 3 items" do
    before { @arr = [1, 2, 3] }

    specify { @arr.should_not be_empty }
    specify { @arr.count.should eq(3) }
  end
end

describe Array do
  describe "with 3 items" do
    subject { [1, 2, 3] }

    it { should_not be_empty }
    its(:count) { should eq(3) }
  end
end

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