test(map): verify map.jinja dump using _mapdata state

* Semi-automated using https://github.com/myii/ssf-formula/pull/245

test/integration/default/controls/_mapdata_spec.rb

@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+control '`map.jinja` YAML dump' do
+  title 'should contain the lines'
+
+  mapdata_file = "_mapdata/#{system.platform[:finger].split('.').first}.yaml"
+  mapdata_dump = inspec.profile.file(mapdata_file)
+
+  describe file('/tmp/salt_mapdata_dump.yaml') do
+    it { should exist }
+    its('content') { should include mapdata_dump }
+  end
+end