Interestingly enough, that typo was apparently the proximate cause of the error
- once I corrected the spelling of “receive” I then got a usable error message.
So, Phil, Jon, does this warrant filing a bug, given that it’s in Version 2.99
of RSpec?
Thanks, Phil. I don’t know how many times I looked at that code without seeing
the typo.
Jack
> On Sep 5, 2020, at 12:50 AM, Phil Pirozhkov <pirjs...@gmail.com> wrote:
>
> Hi Jack
>
> Sorry for brevity, will reply in more detail later when I get to my computer.
>
> One thing I could spot is a typo in "receve" in one of the examples.
>
> There might be something wrong with the other examples, but I understand that
> you're looking for a generic solution how to quickly get what's wrong in a
> failure message, and clearly "undefined method" raised somewhere in RSpec's
> internals is nowhere near being helpful.
>
> I guess we'll have to dig whats in base_formatter.rb:209, that may give an
> idea of what is the root cause of missing exact failure messages. I'll check
> it out, but if you have a chance to take a look yourself earlier than I'll
> get to it, don't hesitate. RSpec is just as good as any other code, probably
> even easier to read and understand.
>
> - Phil
>
> From: Jack Royal-Gordon
> Sent: Saturday, 5 September 2020 07:48
> To: rspec@googlegroups.com
> Reply To: rspec@googlegroups.com
> Subject: [rspec] undefined method `detect' for nil:NilClass (NoMethodError)
> in `find_failed_line'
>
> Running RSpec 2.99 (I know, I know, but I’m working on bringing my project up
> to date), and one section of one of my spec files gives that error. I’m not
> necessarily looking for a fix as much as a strategy for troubleshooting. Each
> of the three examples by itself will cause the same problem (both by
> isolating them on the command line and by commenting out the code). I also
> tried eliminating the “before” block (and FWIW, the call being tested works
> fine in production, not that that really means anything).
>
>
> The section in question looks like:
>
> require 'spec_helper'
>
> describe UserDistributor do
> …
> describe '#scrape_sales_data' do
> let(:ud) { FactoryGirl.create :user_distributor, :nook }
>
> before do
> allow_any_instance_of(DistributorWorker).to
> receive(:scrape_sales_data_for_user).and_return(true)
> end
>
> subject { ud.scrape_sales_data }
>
> it 'sets the user scrape_status field' do
> expect { subject }.to change { ud.user.scrape_status }
> end
>
> it 'creates a distributor worker' do
> expect(ud.distributor).to receve(:worker)
> subject
> end
>
> it 'calls #scrape_sales_data_for_user on the distibutor worker with the
> UD' do
> expect_any_instance_of(DistributorWorker).to
> receive(:scrape_sales_data_for_user).with(ud)
> subject
> end
> end
> end
>
> I get the following output (using —format documentation and —backtrace):
>
> UserDistributor
> #scrape_sales_data
> sets the user scrape_status field (FAILED - 1)
> creates a distributor worker (FAILED - 2)
> calls #scrape_sales_data_for_user on the distibutor worker with the UD
> (FAILED - 3)
>
> Failures:
>
> 1) UserDistributor#scrape_sales_data sets the user scrape_status field
> /Users/jackrg/.rbenv/versions/2.0.0-p576/lib/ruby/gems/2.0.0/gems/rspec-core-2.99.2/lib/rspec/core/formatters/base_formatter.rb:209:in
> `find_failed_line': undefined method `detect' for nil:NilClass
> (NoMethodError)
> from
> /Users/jackrg/.rbenv/versions/2.0.0-p576/lib/ruby/gems/2.0.0/gems/rspec-core-2.99.2/lib/rspec/core/formatters/base_formatter.rb:191:in
> `read_failed_line'
> from
> /Users/jackrg/.rbenv/versions/2.0.0-p576/lib/ruby/gems/2.0.0/gems/rspec-core-2.99.2/lib/rspec/core/formatters/base_text_formatter.rb:300:in
> `dump_failure_info'
> from
> /Users/jackrg/.rbenv/versions/2.0.0-p576/lib/ruby/gems/2.0.0/gems/rspec-core-2.99.2/lib/rspec/core/formatters/base_text_formatter.rb:294:in
> `dump_failure'
> from
> /Users/jackrg/.rbenv/versions/2.0.0-p576/lib/ruby/gems/2.0.0/gems/rspec-core-2.99.2/lib/rspec/core/formatters/base_text_formatter.rb:24:in
> `block in dump_failures'
> from
> /Users/jackrg/.rbenv/versions/2.0.0-p576/lib/ruby/gems/2.0.0/gems/rspec-core-2.99.2/lib/rspec/core/formatters/base_text_formatter.rb:22:in
> `each'
> from
> /Users/jackrg/.rbenv/versions/2.0.0-p576/lib/ruby/gems/2.0.0/gems/rspec-core-2.99.2/lib/rspec/core/formatters/base_text_formatter.rb:22:in
> `each_with_index'
> from
> /Users/jackrg/.rbenv/versions/2.0.0-p576/lib/ruby/gems/2.0.0/gems/rspec-core-2.99.2/lib/rspec/core/formatters/base_text_formatter.rb:22:in
> `dump_failures'
> from
> /Users/jackrg/.rbenv/versions/2.0.0-p576/lib/ruby/gems/2.0.0/gems/rspec-core-2.99.2/lib/rspec/core/reporter.rb:130:in
> `block in notify'
> from
> /Users/jackrg/.rbenv/versions/2.0.0-p576/lib/ruby/gems/2.0.0/gems/rspec-core-2.99.2/lib/rspec/core/reporter.rb:129:in
> `each'
> from
> /Users/jackrg/.rbenv/versions/2.0.0-p576/lib/ruby/gems/2.0.0/gems/rspec-core-2.99.2/lib/rspec/core/reporter.rb:129:in
> `notify'
> from
> /Users/jackrg/.rbenv/versions/2.0.0-p576/lib/ruby/gems/2.0.0/gems/rspec-core-2.99.2/lib/rspec/core/reporter.rb:109:in
> `finish'
> from
> /Users/jackrg/.rbenv/versions/2.0.0-p576/lib/ruby/gems/2.0.0/gems/rspec-core-2.99.2/lib/rspec/core/reporter.rb:60:in
> `report'
> from
> /Users/jackrg/.rbenv/versions/2.0.0-p576/lib/ruby/gems/2.0.0/gems/rspec-core-2.99.2/lib/rspec/core/command_line.rb:21:in
> `run'
> from
> /Users/jackrg/.rbenv/versions/2.0.0-p576/lib/ruby/gems/2.0.0/gems/rspec-core-2.99.2/lib/rspec/core/runner.rb:103:in
> `run'
> from
> /Users/jackrg/.rbenv/versions/2.0.0-p576/lib/ruby/gems/2.0.0/gems/rspec-core-2.99.2/lib/rspec/core/runner.rb:17:in
> `block in autorun'
>
>
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