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undefined method `collect' for nil:NilClass error when running rspec spec with -fd flag #13

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reconstructions opened this issue Jun 10, 2014 · 4 comments
Open

undefined method `collect' for nil:NilClass error when running rspec spec with -fd flag #13

reconstructions opened this issue Jun 10, 2014 · 4 comments

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@reconstructions
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I have some unusual failures when using this gem in rspec tests:

If I run rspec like this:

rspec spec/ -fd

Setlist pages
  setlist#new
    should be valid markup (FAILED - 9)
    should have content "Add a New Setlist"
    should have title "Add A Setlist | The San Francisco Rockers' Club"

1) Shared Pages: menus, headers, footers page header main menu with a logged in user should be valid markup
   Failure/Error: it { should be_valid_markup }
   NoMethodError:
     undefined method `collect' for nil:NilClass
   # ./spec/requests/shared_pages_spec.rb:31:in `block (5 levels) in <top (required)>'

 Finished in 19.53 seconds
 320 examples, 17 failures, 3 pending

I get lots of failures from should be_valid_markup, in all the tests where I use it.

If I run my tests like this:

rspec spec/ --tag request -fd

Setlist pages
  setlist#new
    should be valid markup
    should have content "Add a New Setlist"
    should have title "Add A Setlist | The San Francisco Rockers' Club

Finished in 29.55 seconds
94 examples, 0 failures

Or this:

rspec spec/

Finished in 32.75 seconds
320 examples, 0 failures, 3 pending

They all pass.

Any idea what is going on here? This gem has helped me keep my HTML valid, so thanks for that!
@reconstructions
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Additional weird behavior, no errors:

$ rspec spec/requests/setlists_pages_spec.rb
................................

Finished in 8.43 seconds

Same code, different rspec invocation:

$ rspec spec/

Failures:

1) Setlist pages setlist#show should be valid markup
   Failure/Error: it { should be_valid_markup }
   NoMethodError:
     undefined method `collect' for nil:NilClass
   # ./spec/requests/setlists_pages_spec.rb:59:in `block (3 levels) in <top (required)>'

...and 8 more...

Finished in 35.34 seconds
330 examples, 9 failures, 3 pending

This time, the failures occurred in only one rspec file, whereas other files with be_valid_markup calls passed.

@reconstructions
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Also found some invalid HTML in Devise's markup using your gem:

(heartcombo/devise#3067)

(heartcombo/devise#3066)

@h-lame
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h-lame commented Jun 11, 2014

Can you give us a little bit more information: e.g. rspec version, full stack trace of where the error occurs, etc?

@reconstructions
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My rspec version: gem "rspec-rails", "~> 2.14.1"

Here's a typical stack trace. Looks like `be_valid_asset' might be tangling with the 'representable' gem in some way:

Failures:

  1) CSS Validation validate all .css files in '/public/assets/
     Failure/Error: css.should be_valid_css3
     NoMethodError:
       undefined method `collect' for nil:NilClass
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/representable-1.8.5/lib/representable/bindings/hash_bindings.rb:40:in `serialize'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/representable-1.8.5/lib/representable/bindings/hash_bindings.rb:22:in `write'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/representable-1.8.5/lib/representable/hash/collection.rb:23:in `create_representation_with'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/representable-1.8.5/lib/representable/hash.rb:39:in `to_hash'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/roar-0.12.7/lib/roar/representer/json.rb:26:in `to_hash'
     # /Users/reconstructions/.rvm/rubies/ruby-2.1.0/lib/ruby/2.1.0/net/http.rb:567:in `try_convert'
     # /Users/reconstructions/.rvm/rubies/ruby-2.1.0/lib/ruby/2.1.0/net/http.rb:567:in `start'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/be_valid_asset-1.2.3/lib/be_valid_asset/be_valid_base.rb:94:in `http_start'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/be_valid_asset-1.2.3/lib/be_valid_asset/be_valid_base.rb:72:in `call_validator'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/be_valid_asset-1.2.3/lib/be_valid_asset/be_valid_base.rb:58:in `get_validator_response'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/be_valid_asset-1.2.3/lib/be_valid_asset/be_valid_base.rb:17:in `validate'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/be_valid_asset-1.2.3/lib/be_valid_asset/be_valid_css.rb:24:in `matches?'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-expectations-2.14.5/lib/rspec/expectations/handler.rb:24:in `handle_matcher'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-expectations-2.14.5/lib/rspec/expectations/syntax.rb:53:in `should'
     # ./spec/assets/css_spec.rb:12:in `block (3 levels) in <top (required)>'
     # ./spec/assets/css_spec.rb:6:in `foreach'
     # ./spec/assets/css_spec.rb:6:in `block (2 levels) in <top (required)>'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/example.rb:114:in `instance_eval'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/example.rb:114:in `block in run'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/example.rb:179:in `call'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/example.rb:179:in `run'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/extensions/instance_eval_with_args.rb:16:in `instance_exec'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/extensions/instance_eval_with_args.rb:16:in `instance_eval_with_args'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/example.rb:247:in `instance_eval_with_args'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/hooks.rb:106:in `block (2 levels) in run'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/hooks.rb:108:in `call'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/hooks.rb:108:in `run'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/hooks.rb:446:in `run_hook'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/example_group.rb:340:in `run_around_each_hooks'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/example.rb:256:in `with_around_each_hooks'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/example.rb:111:in `run'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/example_group.rb:390:in `block in run_examples'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/example_group.rb:386:in `map'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/example_group.rb:386:in `run_examples'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/example_group.rb:371:in `run'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/command_line.rb:28:in `block (2 levels) in run'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/command_line.rb:28:in `map'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/command_line.rb:28:in `block in run'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/reporter.rb:58:in `report'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/command_line.rb:25:in `run'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/runner.rb:80:in `run'
     # /Users/reconstructions/.rvm/gems/ruby-2.1.0@sfrc/gems/rspec-core-2.14.8/lib/rspec/core/runner.rb:17:in `block in autorun'

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@h-lame @reconstructions