Added test runner for sputnik tests.

tools/test.py

 #!/usr/bin/env python
 #
 # Copyright 2008 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
@@ skipping 341 matching lines @@
 
   def GetSource(self):
     return "(no source available)"
 
   def RunCommand(self, command):
     full_command = self.context.processor(command)
     output = Execute(full_command, self.context, self.context.timeout)
     self.Cleanup()
     return TestOutput(self, full_command, output)
 
+  def BeforeRun(self):
+    pass
+
+  def AfterRun(self):
+    pass
+
   def Run(self):
-    return self.RunCommand(self.GetCommand())
+    self.BeforeRun()
+    try:
+      result = self.RunCommand(self.GetCommand())
+    finally:
+      self.AfterRun()
+    return result
 
   def Cleanup(self):
     return
 
 
 class TestOutput(object):
 
   def __init__(self, test, command, output):
     self.test = test
     self.command = command
@@ skipping 976 matching lines @@
     for entry in timed_tests[:20]:
       t = FormatTime(entry.duration)
       sys.stderr.write("%4i (%s) %s\n" % (index, t, entry.GetLabel()))
       index += 1
 
   return result
 
 
 if __name__ == '__main__':
   sys.exit(Main())