How to examine rspec variables with pry debugger

Question

I've seen some SO posts explaining how to use pry to step into rspec tests and been able to do this. Once I reach the breakpoint though, I'm struggling to display any useful information. For this code below, I'd like to examine the response object from the pry console:

describe 'happenings' do
  context "#index (GET /api/v1/flat_happenings.json)" do
    before(:each) do
      30.times { FactoryGirl.create(:flat_happening) }
      get "/api/v1/flat_happenings.json"
    end
    describe "should list all flat_happenings" do
      binding.pry
      it { JSON.parse(response.body)["flat_happenings"].length.should eq 30 }
    end
  end
end

Any ideas on how to do this?

score 42 · Accepted Answer · answered Jul 24 '13 at 15:15

42

You should place binding.pry inside it block.

answered Jul 24 '13 at 15:15

Sergey Alekseev

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score 25 · Answer 2 · edited Mar 05 '18 at 02:27

25

To use pry in specs we need to add require 'pry' within the spec_helper.rb file. Then we are able to use binding.pry within any of the specs.

edited Mar 05 '18 at 02:27

iconoclast

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answered Feb 15 '16 at 22:04

BamBam22

582
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1

It may not be recommend to add `require 'pry'` to a `spec_helper.rb` file if your project defines `pry` as a development dependency, as opposed to a Runtime dependency. Pry is a development gem that might not be recommend on a release of your library. – ddavison Mar 30 '21 at 22:03

score 6 · Answer 3 · answered Jul 24 '13 at 15:19

6

This should work:

describe 'happenings' do
  context "#index (GET /api/v1/flat_happenings.json)" do
    before(:each) do
      30.times { FactoryGirl.create(:flat_happening) }
      get "/api/v1/flat_happenings.json"
    end
    it "should list all flat_happenings" do
      binding.pry
      JSON.parse(response.body)["flat_happenings"].length.should eq 30
    end
  end
end

HTH

answered Jul 24 '13 at 15:19

a.s.t.r.o

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1

Thanks. Your answer works too but as Sergey answered first, I have had to accept his answer. – PropertyWebBuilder Jul 24 '13 at 15:27

Sumeet Raina · Answer 4 · 2020-03-25T09:45:14.570

3

I try to require pry when I actually use it, otherwise, it might introduce some unusual bugs (unusual but it can happen) So that means if you only want to debug a particular test, you don't need to require 'pry' in your spec_helper.rb you can use require 'pry' just in the test you want to debug.

def method_i_am_debugging
  puts 'does stuff'
  require 'pry'
  binding.pry
  # ...
end

edited Mar 25 '20 at 09:45

answered Mar 25 '20 at 09:17

Sumeet Raina

117
6

How to examine rspec variables with pry debugger

4 Answers4