使用expect.进行更改,不会传递,但在控制台中有效

我想在我的模型上测试一种方法。在控制台中运行可以,但是我的rspec测试没有通过。签出代码:

模型:

def import(master)
  hsh = master.attributes.delete_if { |k,v| k == 'id' }
  self.update_attributes(hsh)
end

RSPEC测试:

describe "#import" do

  let(:master) { Factory(:sheet, :work_order => 'M1234', :sample_size => 10, :sample_scheme => 'TEST#') }
  let(:wo) { Factory(:sheet, :work_order => 'W1234', :sample_scheme => 'ORIG#' ) }

  it "imports all of the attributes from the master" do
    expect { wo.import(master) }.to change( wo, :sample_scheme ).to(master.sample_scheme)
  end

end

我想不出来,这里是输出:

'Sheet#import imports all of the attributes from the master' FAILED
sample_scheme should have been changed to "TEST#", but is now "ORIG#"

如我所说,当在控制台中运行时,代码正确地从主服务器导入属性。只是RSPEC测试失败了。我做错什么了?

更改为导入函数将导致传递:

def import(master)
  hsh = master.attributes.delete_if { |k,v| k == 'id' }
  hsh.each do |k,v|
    self.update_attribute(k, v)
  end
  #self.update_attribute(:sample_scheme, hsh['sample_scheme'])
  #self.update_attributes(hsh)
end