updated watch file

watch.rb

@@ -1,12 +1,16 @@
 #watch file
 
+def run_parser_tests
+  system("node test/parser-tests.js")
+  puts ""
+  puts("waiting...")
+  puts ""
+end
+
 watch('lib/(.*)\.js') { |md|
-  system('echo "lib changed"')
+  run_parser_tests
 }
 
 watch('test/(.*)\.js') { |md|
-  system("node #{md}")
-  puts ""
-  puts("waiting...")
-  puts ""
+  run_parser_tests
 }