How to test observe with rspec in Ruby on Rails.

When testing the model, one change was observe. I wanted to test it, but the observer refused to execute it in rspec, but there was no problem with test env in the console.

It took me a day to debug and finally failed to solve the problem. If you encounter such problems, please help me. Thank you.

I used my spam English to ask on the rails mail list and asked me to read the following stuff.

Http://stackoverflow.com/questions/33048/how-would-you-test-observers-with-rspec-in-a-ruby-on-rails-application

We recommend that you test the observer and model separately and use mock to build the model in the Observer.

I tried to write it and thought it was good. record it.

 

TestCode

  1   Require  '  Spec_helper '  
  2   
  3   Describe contactinfoobserver  Do  
  4   Before (: each)  Do  
  5   @ Phone  =     " 15812345678  "  
  6   @ Obs  =  Contactinfoobserver. Instance
  7   End
  8   
  9   It  '  Shocould be change contact my User ID when contact registered  '    Do  
  10   User  =  Mock_model (userinfo)
  11   Userinfo. Stub (: find_by_phone). and_return (User)
  12   M  =  Mock_model (contactinfo,: Phone  =>  @ Phone)
  13  M. should_receive (  "  My_user_id =  "  ). With (user. ID)
  14   @ Obs. before_create m
  15   End
  16   
  17   It  '  Shocould not change contact my User ID when contact unregistered  '    Do  
  18   Userinfo. Stub (: find_by_phone). and_return (  False  )
  19   M  =  Mock_model (contactinfo,: Phone  =>  @ Phone)
  20   M. should_not_receive (  " My_user_id =  "  )
  21   @ Obs. before_create m
  22   End
  23   
  24   End 

 

Observer

  1   Class Contactinfoobserver  <  Activerecord: Observer
  2   Def before_create (contact_info)
  3   # Contact_info.logger.error (  "  Model  "  +  Contact_info.inspect)
  4   User  = Userinfo. find_by_phone contact_info.phone
  5   Puts  "  Model observer  "  +  User. Inspect
  6     If  User
  7   Puts  '  At here  ' 
  8   Contact_info.my_user_id  =  User. ID
  9   End
  10   End
  11   End