parse_config_file fails when it encounters a '['

fixed_gpgcheck.rb

options = {
    assignment_re: /^\s*([^=]*?)\s*=\s*(.*?)\s*$/,
    comment_char: '['
  }

# describe parse_config_file('/etc/yum.conf') do
describe parse_config_file('yum.conf', options) do
  its('gpgcheck') { should cmp 1 }
end

gpgcheck.rb

  options = {
    assignment_re: /^\s*([^=]*?)\s*=\s*(.*?)\s*$/
  }
  describe parse_config_file('yum.conf', options) do
    its('gpgcheck') { should cmp 1 }
  end

output

inspec exec gpgcheck.rb
F

Failures:

  1) Parse Config File yum.conf gpgcheck should cmp 1
     Failure/Error: DEFAULT_FAILURE_NOTIFIER = lambda { |failure, _opts| raise failure }

       expected: 1
            got:

       (compared using `cmp` matcher)
     # gpgcheck.rb:8:in `block (2 levels) in load'
     # ./.chefdk/gem/ruby/2.1.0/gems/inspec-0.19.3/lib/inspec/runner_rspec.rb:67:in `run'
     # ./.chefdk/gem/ruby/2.1.0/gems/inspec-0.19.3/lib/utils/base_cli.rb:70:in `run_tests'
     # ./.chefdk/gem/ruby/2.1.0/gems/inspec-0.19.3/lib/inspec/cli.rb:113:in `exec'

Finished in 0.04509 seconds (files took 2.09 seconds to load)
1 example, 1 failure

Failed examples:

rspec  # Parse Config File yum.conf gpgcheck should cmp 1

yum.conf

[main]
cachedir=/var/cache/yum/$basearch/$releasever
keepcache=0
debuglevel=2
logfile=/var/log/yum.log
exactarch=1
obsoletes=1
gpgcheck=1
plugins=1
installonly_limit=5
bugtracker_url=http://bugs.centos.org/set_project.php?project_id=19&ref=http://bugs.centos.org/bug_report_page.php?category=yum
distroverpkg=centos-release

#  This is the default, if you make this bigger yum won't see if the metadata
# is newer on the remote and so you'll "gain" the bandwidth of not having to
# download the new metadata and "pay" for it by yum not having correct
# information.
#  It is esp. important, to have correct metadata, for distributions like
# Fedora which don't keep old packages around. If you don't like this checking
# interupting your command line usage, it's much better to have something
# manually check the metadata once an hour (yum-updatesd will do this).
# metadata_expire=90m

# PUT YOUR REPOS HERE OR IN separate files named file.repo
# in /etc/yum.repos.d