rspec: how to test redis publish











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I'm using the 'realtime' gem for realtime message.



Given something like(code from offical website)



# if using redis:

$redis.publish 'realtime_msg', {msg: 'hello world - ' + SecureRandom.hex, recipient_user_ids: [41, 42]}.to_json


How can I test this code with rspec?






ruby-on-rails ruby-on-rails-5 rspec3







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    up vote
    0
    down vote

    favorite












    I'm using the 'realtime' gem for realtime message.



    Given something like(code from offical website)



    # if using redis:
    
$redis.publish 'realtime_msg', {msg: 'hello world - ' + SecureRandom.hex, recipient_user_ids: [41, 42]}.to_json


    How can I test this code with rspec?






    ruby-on-rails ruby-on-rails-5 rspec3







    share|improve this question
























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I'm using the 'realtime' gem for realtime message.



      Given something like(code from offical website)



      # if using redis:
      
$redis.publish 'realtime_msg', {msg: 'hello world - ' + SecureRandom.hex, recipient_user_ids: [41, 42]}.to_json


      How can I test this code with rspec?






      ruby-on-rails ruby-on-rails-5 rspec3







      share|improve this question













      I'm using the 'realtime' gem for realtime message.



      Given something like(code from offical website)



      # if using redis:
      
$redis.publish 'realtime_msg', {msg: 'hello world - ' + SecureRandom.hex, recipient_user_ids: [41, 42]}.to_json


      How can I test this code with rspec?






      ruby-on-rails ruby-on-rails-5 rspec3




      ruby-on-rails ruby-on-rails-5 rspec3






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 7 at 7:35









      hu huang

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      82
























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          You can add a spy to $redis to assert that publish gets called with certain arguments like so:



          expect($redis).to receive(:publish).with('realtime_msg', /hello world/)`


          The last part, /hello world.*recipient_user_ids/ is just an example of a regular expression you could use to match the JSON string you're providing as a second argument to publish. You could use a custom matcher there or any other rspec argument matcher that serves your purpose.






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            up vote
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            down vote













            You can add a spy to $redis to assert that publish gets called with certain arguments like so:



            expect($redis).to receive(:publish).with('realtime_msg', /hello world/)`


            The last part, /hello world.*recipient_user_ids/ is just an example of a regular expression you could use to match the JSON string you're providing as a second argument to publish. You could use a custom matcher there or any other rspec argument matcher that serves your purpose.






            share|improve this answer

























              up vote
              0
              down vote













              You can add a spy to $redis to assert that publish gets called with certain arguments like so:



              expect($redis).to receive(:publish).with('realtime_msg', /hello world/)`


              The last part, /hello world.*recipient_user_ids/ is just an example of a regular expression you could use to match the JSON string you're providing as a second argument to publish. You could use a custom matcher there or any other rspec argument matcher that serves your purpose.






              share|improve this answer























                up vote
                0
                down vote










                up vote
                0
                down vote









                You can add a spy to $redis to assert that publish gets called with certain arguments like so:



                expect($redis).to receive(:publish).with('realtime_msg', /hello world/)`


                The last part, /hello world.*recipient_user_ids/ is just an example of a regular expression you could use to match the JSON string you're providing as a second argument to publish. You could use a custom matcher there or any other rspec argument matcher that serves your purpose.






                share|improve this answer












                You can add a spy to $redis to assert that publish gets called with certain arguments like so:



                expect($redis).to receive(:publish).with('realtime_msg', /hello world/)`


                The last part, /hello world.*recipient_user_ids/ is just an example of a regular expression you could use to match the JSON string you're providing as a second argument to publish. You could use a custom matcher there or any other rspec argument matcher that serves your purpose.







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                answered Nov 7 at 12:59









                jbielick

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