Refactoring: Make gtest testsuite the default.

tools/testrunner/local/testsuite.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 17 matching lines @@
 
 import imp
 import os
 
 from . import statusfile
 from . import utils
 
 class TestSuite(object):
 
   @staticmethod
-  def LoadTestSuite(root):
+  def LoadTestSuite(root, default):
     name = root.split(os.path.sep)[-1]
     f = None
     try:
       (f, pathname, description) = imp.find_module("testcfg", [root])
       module = imp.load_module("testcfg", f, pathname, description)
-      suite = module.GetSuite(name, root)
+      return module.GetSuite(name, root)
+    except:
+      # Use default if no testcfg is present.
+      return default(name, root)
     finally:
       if f:
         f.close()
-    return suite
 
   def __init__(self, name, root):
     self.name = name  # string
     self.root = root  # string containing path
     self.tests = None  # list of TestCase objects
     self.rules = None  # dictionary mapping test path to list of outcomes
     self.wildcards = None  # dictionary mapping test paths to list of outcomes
     self.total_duration = None  # float, assigned on demand
 
   def shell(self):
@@ skipping 148 matching lines @@
   def StripOutputForTransmit(self, testcase):
     if not self.HasUnexpectedOutput(testcase):
       testcase.output.stdout = ""
       testcase.output.stderr = ""
 
   def CalculateTotalDuration(self):
     self.total_duration = 0.0
     for t in self.tests:
       self.total_duration += t.duration
     return self.total_duration