raise exception if the minimum InSpec version is not available

Signed-off-by: Christoph Hartmann <chris@lollyrock.com>

files/default/handler/audit_report.rb

@@ -5,6 +5,9 @@ class Chef
   class Handler
     # Creates a compliance audit report
     class AuditReport < ::Chef::Handler
+
+      MIN_INSPEC_VERSION = '1.25.1'
+
       def report
         # get reporter(s) from attributes as an array
         reporters = get_reporters(node['audit'])
@@ -125,10 +128,8 @@ def get_opts(format, quiet)
       # run profiles and return report
       def call(opts, profiles)
         Chef::Log.info "Using InSpec #{::Inspec::VERSION}"
-
-        if Gem::Version.new(Inspec::VERSION) < Gem::Version.new('1.24.0')
-          Chef::Log.error "This audit cookbook version requires InSpec 1.24.0 or newer, aborting compliance scan..."
-          return {}
+        if Gem::Version.new(::Inspec::VERSION) < Gem::Version.new(MIN_INSPEC_VERSION)
+          raise "This audit cookbook version requires InSpec #{MIN_INSPEC_VERSION} or newer, aborting compliance scan..."
         end
 
         Chef::Log.debug "Options are set to: #{opts}"