我在 rspec 的脚手架测试中遇到问题，其中 any_instance.should_receive 抛出错误：Failure/Error: Unable to find matching line from backtrace 确切地说，一个实例应该收到以下消息但没有：update_attributes
Rspec 代码，使用 FactoryGirl 和 strong_parameters：
describe "PUT update" do
describe "with valid params" do
it "updates the requested acquisition" do
puts "starting updates the requested acquisition"
acquisition = create(:acquisition)
# Assuming there are no other acquisitions in the database, this
# specifies that the Acquisition created on the previous line
# receives the :update_attributes message with whatever params are
# submitted in the request.
Acquisition.any_instance.should_receive(:update_attributes).with(:acquisition => {:person_id => '10'})
puts "before the put "
put :update, :id => acquisition.id, :acquisition => { :person_id => '10'}
puts "ending the updates the requested acquisition"
end
end
end
控制器代码：
def update
@acquisition = Acquisition.find(params[:id])
puts "acquisition is #{@acquisition.inspect}"
respond_to do |format|
if @acquisition.update_attributes!(acquisition_params)
puts "updated the thing! #{@acquisition.inspect}"
format.html { redirect_to(@acquisition, :notice => 'Acquisition was successfully updated.') }
format.xml { head :ok }
else
puts "failed to update the thing!"
format.html { render :action => "edit" }
format.xml { render :xml => @acquisition.errors, :status => :unprocessable_entity }
end
end
end
测试输出：
starting updates the requested acquisition
before the put
acquisition is #<Acquisition id: 502, sample_id: 7, person_id: 7, method: nil>
params is acqusition_params is {"person_id"=>"10"}
updated the thing! #<Acquisition id: 502, sample_id: 7, person_id: 10, method: nil>
ending the updates the requested acquisition
F
1) AcquisitionsController PUT update with valid params updates the requested acquisition
Failure/Error: Unable to find matching line from backtrace
Exactly one instance should have received the following message(s) but didn't: update_attributes
鉴于我在控制器中打印出更新的对象并且它是正确的，为什么测试失败了？
谢谢！