指定手动调用有效?

时间:2009-05-31 16:00:16

标签: ruby-on-rails ruby rspec

嘿所有,我完全迷失在这一个。

我发现了一个在线代码片段,可以帮助用户在输入时通过ajax验证字段。因此,我正在尝试针对其中的一部分编写规范,而我却无法通过它。

这是代码

def validate
  field = params[:field]
  user = User.new(field => params[:value])
  output = ""
  user.valid?
  if user.errors[field] != nil
    if user.errors[field].class == String
      output = "#{field.titleize} #{user.errors[field]}" 
    else
      output = "#{field.titleize} #{user.errors[field].to_sentence}" 
    end
  end
  render :text => output
end

这是我到目前为止的测试

  describe "POST validate" do
    it "retrieves the user based on the past in username" do
      mock_errors ||= mock("errors")
      mock_errors.stub!(:[]).and_return(nil)
      User.should_receive(:new).with({'username'=>"UserName"}).and_return(mock_user)
      mock_user.should_receive(:valid?).and_return(true)
      mock_errors.should_receive(:[]).with("username").and_return(nil)
      put :validate, :field=>'username', :value=>'UserName'      
      response.should == ""
    end
  end

我收到此错误 -

  

1)Spec :: Mocks :: MockExpectationError   在'UsersController POST验证   根据过去检索用户   收到用户名'模拟'错误'   意外消息:[]用   ( “用户名”)

我似乎无法弄清楚如何模拟对user.errors [field]的调用。理想情况下,此规范测试快乐路径,没有错误。然后我会写另一个验证失败。

1 个答案:

答案 0 :(得分:1)

我没有看到mock_user。这是一个镜头:

describe "POST validate" do
  it "retrieves the user based on the past in username" do
    mock_errors = mock("errors")
    mock_user = mock("user")
    mock_user.stub!(:errors).and_return([mock_errors])
    mock_errors.stub!(:[]).and_return(nil)
    User.should_receive(:new).with({'username'=>"UserName"}).and_return(mock_user)
    mock_user.should_receive(:valid?).and_return(true)
    mock_errors.should_receive(:[]).with("username").and_return(ActiveRecord::Errors.new({}))
    put :validate, :field=>'username', :value=>'UserName'      
    response.should == ""
  end
end

关键是你需要你的User mock通过返回空哈希或fieldname / errors的哈希来响应errors方法。另一种方法是使用夹具更换工具之一。我现在正在使用机械师,这可能会减少这一切:

describe "POST validate" do
  it "retrieves the user based on the past in username" do
    @user = User.make{'username'=>"UserName"}
    @user.should_receive(:valid?).and_return(true)
    @user.errors.should_receive(:[]).with("username").and_return(ActiveRecord::Errors.new({}))
    put :validate, :field=>'username', :value=>'UserName'      
    response.should == ""
  end
end