test(map): standardise map.jinja verification

* Automated using https://github.com/myii/ssf-formula/pull/281

test/integration/default/controls/_mapdata_spec.rb

@@ -1,13 +1,23 @@
 # frozen_string_literal: true
 
-mapdata_file = "_mapdata/#{system.platform[:finger].split('.').first}.yaml"
-mapdata_dump = inspec.profile.file(mapdata_file)
+require 'yaml'
 
 control '`map.jinja` YAML dump' do
-  title 'should contain the lines'
+  title 'should match the comparison file'
 
-  describe file('/tmp/salt_mapdata_dump.yaml') do
-    it { should exist }
-    its('content') { should eq mapdata_dump }
+  # Strip the `platform[:finger]` version number down to the "OS major release"
+  mapdata_file = "_mapdata/#{system.platform[:finger].split('.').first}.yaml"
+
+  # Load the mapdata from profile https://docs.chef.io/inspec/profiles/#profile-files
+  mapdata_dump = YAML.safe_load(inspec.profile.file(mapdata_file))
+
+  # Derive the location of the dumped mapdata
+  output_dir = platform[:family] == 'windows' ? '/temp' : '/tmp'
+  output_file = "#{output_dir}/salt_mapdata_dump.yaml"
+
+  describe 'File content' do
+    it 'should match profile map data exactly' do
+      expect(yaml(output_file).params).to eq(mapdata_dump)
+    end
   end
 end