[test] Presumbit check against missing tests in status files

tools/testrunner/local/statusfile.py

 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 214 matching lines @@
 
 def _ReadSection(section, rules, wildcards, variables):
   assert type(section) == dict
   for rule in section:
     assert type(rule) == str
     if rule[-1] == '*':
       _ParseOutcomeList(rule, section[rule], wildcards, variables)
     else:
       _ParseOutcomeList(rule, section[rule], rules, variables)
 
+JS_TEST_PATHS = {
+  'debugger': [[]],
+  'inspector': [[]],
+  'intl': [[]],
+  'message': [[]],
+  'mjsunit': [[]],
+  'mozilla': [['data']],
+  'test262': [['data', 'test'], ['local-tests', 'test']],
+  'webkit': [[]],
+}
 
 def PresubmitCheck(path):
   with open(path) as f:
     contents = ReadContent(f.read())
-  root_prefix = os.path.basename(os.path.dirname(path)) + "/"
+  basename = os.path.basename(os.path.dirname(path))
+  root_prefix = basename + "/"
   status = {"success": True}
   def _assert(check, message):  # Like "assert", but doesn't throw.
     if not check:
       print("%s: Error: %s" % (path, message))
       status["success"] = False
   try:
     for section in contents:
       _assert(type(section) == list, "Section must be a list")
       _assert(len(section) == 2, "Section list must have exactly 2 entries")
       section = section[1]
       _assert(type(section) == dict,
               "Second entry of section must be a dictionary")
       for rule in section:
         _assert(type(rule) == str, "Rule key must be a string")
         _assert(not rule.startswith(root_prefix),
                 "Suite name prefix must not be used in rule keys")
         _assert(not rule.endswith('.js'),
                 ".js extension must not be used in rule keys.")
+        if basename in JS_TEST_PATHS  and '*' not in rule:
+          _assert(any(os.path.exists(os.path.join(os.path.dirname(path),
+                                                  *(paths + [rule + ".js"])))
+                      for paths in JS_TEST_PATHS[basename]),
+                  "missing file for %s test %s" % (basename, rule))
     return status["success"]
   except Exception as e:
     print e
     return False