Running helpers spec separately fails, but works when running all the tests

[Javix]

I can't figure out why when I run all the tests with

rspec

command, they all are run.

If I run a helper spec separately like that:

rspec spec/helpers/application_helper_spec.rb

it fails as follows:

spec/helpers/application_helper_spec.rb:3:in `<top (required)>': uninitialized constant ApplicationHelper (NameError)



 from /Users/serge-mac/.rvm/gems/ruby-2.3.0/gems/rspec-core-3.3.2/lib/rspec/core/configuration.rb:1327:in `load'

 from /Users/serge-mac/.rvm/gems/ruby-2.3.0/gems/rspec-core-3.3.2/lib/rspec/core/configuration.rb:1327:in `block in load_spec_files'

 from /Users/serge-mac/.rvm/gems/ruby-2.3.0/gems/rspec-core-3.3.2/lib/rspec/core/configuration.rb:1325:in `each'

 from /Users/serge-mac/.rvm/gems/ruby-2.3.0/gems/rspec-core-3.3.2/lib/rspec/core/configuration.rb:1325:in `load_spec_files'

 from /Users/serge-mac/.rvm/gems/ruby-2.3.0/gems/rspec-core-3.3.2/lib/rspec/core/runner.rb:102:in `setup'

 from /Users/serge-mac/.rvm/gems/ruby-2.3.0/gems/rspec-core-3.3.2/lib/rspec/core/runner.rb:88:in `run'

 from /Users/serge-mac/.rvm/gems/ruby-2.3.0/gems/rspec-core-3.3.2/lib/rspec/core/runner.rb:73:in `run'

 from /Users/serge-mac/.rvm/gems/ruby-2.3.0/gems/rspec-core-3.3.2/lib/rspec/core/runner.rb:41:in `invoke'

 from /Users/serge-mac/.rvm/gems/ruby-2.3.0/gems/rspec-core-3.3.2/exe/rspec:4:in `<top (required)>'

 from /Users/serge-mac/.rvm/gems/ruby-2.3.0/bin/rspec:23:in `load'

 from /Users/serge-mac/.rvm/gems/ruby-2.3.0/bin/rspec:23:in `<main>'

 from /Users/serge-mac/.rvm/gems/ruby-2.3.0/bin/ruby_executable_hooks:15:in `eval'

 

 from /Users/serge-mac/.rvm/gems/ruby-2.3.0/bin/ruby_executable_hooks:15:in `<main>'

Here is the application_helper_spec.rb:

equire 'spec_helper'

describe ApplicationHelper, :type => :helper do

  describe "generating full title" do

    let(:base_title) { I18n.t(:base_title)}

    it "should concatenate page title with base title" do

      expect(full_title('some page title')).to eq("#{base_title} | some page title")

    end

...

end

end

[Javix]

Figured out myself.

That was a wrong copy-paste from an old project: instead of requiring spec_helper (which fails), I had to change it to require rails_helper and it worked. :)