如何從RSpec的消除重複

Question

語境 「的答案是正確的」 做

before(:each) do 
    @answer = stub_model(Answer, :correct => true).as_new_record 
    assigns[:answer] = @answer 

    render "answers/summarize" 
end 

it "should display flashcard context properly" do 
    response.should contain("Quiz") 
end 

it "should summarize results" do 
    response.should contain("is correct") 
end 

末

語境 「答案是不正確」 做

before(:each) do 
    @answer = stub_model(Answer, :correct => false).as_new_record 
    assigns[:answer] = @answer 

    render "answers/summarize" 
end 

it "should display flashcard context properly" do 
    response.should contain("Quiz") 
end 

it "should summarize results" do 
    response.should contain("is incorrect") 
end 

末

我如何避免在上述兩個上下文中重複以下塊？

it "should display flashcard context properly" do 

    response.should contain("Quiz") 

末

Answer 1

您的規格說明你從你的代碼所期望的行爲 - 重複這一數額是確定的。

如果失控，請使用不同的上下文來隔離不同的期望。例如，您可以將這些重複的期望因素放入一個新的上下文中，無論Answer是什麼，它都只是測試頁面。

Answer 2

如果你真的想換一些你的測試，你可以做這樣的：

def answer_tests 
    it "should display flashcard context properly" do 
    response.should contain "Quiz" 
    end 

    it "should do be awesome" do 
    response.should be_awesome 
    end 
end 

context "answer is correct" do 
    answer_tests 

    it "should summarize results" do 
    response.should contain "is correct" 
    end 
end 

context "answer is incorrect" do 
    answer_tests 

    it "should summarize results" do 
    response.should contain "is incorrect" 
    end 
end 

正如你所看到的，這是非常方便的，當你有一個以上的測試，你想包裝在一個方法中。