如何控制

Question

在控制器測試Rspec的，

def admin_search 
    @admins = User.find(:all,:joins=>[:roles],:conditions=>["name IN (?) and email like '#{params[:email]}%'",["content team","ops team"]]).paginate(:page => params[:page], :per_page => 10) 
end 

請建議我在rspec的

Answer 1

首先是一些代碼，這是更好地提取find(:all, ...)調用用戶模型。例如，稱它爲search。

class User < ActiveRecord::Base 
    scope :search_by_email, lambda { |email| 
    joins(:roles).where(["name IN (?) and email like '#{email}%'",["content team","ops team"]]) 
    } 
end 

使用它的控制器則：

def admin_search 
    @admins = User.search_by_email(params[:email]).paginate(:page => params[:page], :per_page => 10) 
end 

現在，你可以在隔離測試search_by_email方法 - 檢查，這對「內容團隊」和「運營團隊」只返回結果，正確使用空電子郵件字符串等等。

我不認爲你必須測試paginate方法，因爲它應該已經在kaminari，will_paginate或任何你使用的測試。但是如果你想確定它是否被調用，那麼你可以在控制器規格中使用模擬期望（should_receive）。

編輯：怎樣的規格可能看起來像

describe User do 
    describe ".search_by_email" do 
    let(:content_team) { Role.create! name: "content team" } 
    let(:ops_team)  { Role.create! name: "ops team"  } 
    let(:another_team) { Role.create! name: "another team" } 

    it "should search in content team" do 
     content_team_user = User.create! email: "joe.black@example.com", roles: [content_team] 
     User.search_by_email("black").should == [content_team_user] 
    end 

    it "should search in ops team" do 
     ops_team_user = User.create! email: "joe.black@example.com", roles: [ops_team] 
     User.search_by_email("black").should == [ops_team_user] 
    end 

    it "should not search in other teams" do 
     other_team_user = User.create! email: "joe.black@example.com", roles: [another_team] 
     User.search_by_email("black").should == [] 
    end 

    it "should not search by empty string" do 
     content_team_user = User.create! email: "joe.black@example.com", roles: [content_team_user] 
     User.search_by_email("").should == [] 
     User.search_by_email(nil).should == [] 
    end 

    # more specs for search... 
    end 
end 


describe UsersController do 
    describe "admin search" do 
    let(:admin_user) { double(:admin_user).as_null_object } 
    let(:search_string) { 'joe' } 

    it "should search for admin users" do 
     User.should_receive(:search_by_email).with(search_string).and_return([admin_user]) 
     get :admin_search, email: search_string 
     assigns(:admins).should == [admin_user] 
    end 
    end 
end