Question

我有一个测试套件，类似于我用以下代码描述的情况。有两种情境可以定义主题。主题是相似的，相同类型的对象，但具有不同的值。

在这个主题上，我进行了两次测试。两个测试完全相同，另一个测试不同。

建议一个可以消除重复的重构，除了显而易见的“将代码移动到一个方法”，我不喜欢它，因为它不清楚。

require 'rspec'

describe "tests over numbers" do
  context 'big numbers' do
    subject { 5000 }

    describe "#to_string" do
      its(:to_s) {should be_a(String)}
    end

    describe "#+1" do
      it "+1" do
        sum = subject+1
        sum.should == 5001
      end
    end        
  end
  context 'small numbers' do
    subject { 100 }

    describe "#to_string" do
      its(:to_s) {should be_a(String)}
    end

    describe "#+1" do
      it "+1" do
        sum = subject+1
        sum.should == 101
      end
    end        
  end                                           
end

Answer 1

也许共享的例子是要走的路？

shared_example "numbers" do
  describe "#to_string" do
    it "should convert to a string" do
      example.to_s.should be_a(String)
    end
  end

  describe "#+1" do
    it "should increment" do
      sum = example+1
      sum.should == example.next
    end
  end
end

describe "big_numbers" do
  it_behaves_like "numbers" do
    let(:example) { 5000 }
  end
end

describe "small_numbers" do
  it_behaves_like "numbers" do
    let(:example) { 100 }
  end
end

Answer 2

[5000, 100].each do |my_test|
    subject { my_test }

    describe "#to_string" do
      its(:to_s) {should be_a(String)}
    end

    describe "#+1" do
      it "+1" do
        sum = subject+1
        sum.should == my_test + 1
      end
    end        
end

RSpec：我如何重构一组重复的测试，唯一改变的是主题和期望

2 个答案: