Update lexer_spec.rb

Author: jay7x

spec/unit/puppet-lint/lexer_spec.rb

@@ -1396,6 +1396,12 @@
       expect(token.type).to eq(:TYPE)
       expect(token.value).to eq('Error')
     end
+    
+    it 'matches Binary type' do
+      token = lexer.tokenise('Binary').first
+      expect(token.type).to eq(:TYPE)
+      expect(token.value).to eq('Binary')
+    end
   end
 
   context ':HEREDOC without interpolation' do