型号:
scope :recent, ->(n) {where(:created_at => 6.months.ago..Time.now).order('created_at DESC').limit(n)}
我会在Rspec中做这样的事情:
before(:each) do @song = double(Song,id: 1, name: "Vegan artisan.", album_id: 1, artist_id: 20, created_at: "2016-03-04 13:15:36", updated_at: "2016-03-04 13:15:36") end it "should return the recent most songs within range" do Song.stub_chain(:where,:order,:limit).with(created_at:6.months.ago..Time.now).with('created_at DESC').with(2).and_return([@song,@song]) Song.recent.should == [@song,@song] end
上述情况失败,给出了下面提到的错误:
ArgumentError: wrong number of arguments (0 for 1)
我尝试了不同的方法,但仍然运气不好。任何有关这方面的帮助将不胜感激。在此先感谢!!
答案 0 :(得分:0)
recent
范围要求您传递限制搜索结果的参数,因此您需要相应地更改此行:
Song.recent(2).should eq([@song,@song])
或
expect(Song.recent(2)).to match_array([@song,@song])