[test] Remove default for zero test cases.

tools/testrunner/local/progress.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 182 matching lines @@
 
   def Truncate(self, string, length):
     if length and (len(string) > (length - 3)):
       return string[:(length - 3)] + "..."
     else:
       return string
 
   def PrintProgress(self, name):
     self.ClearLine(self.last_status_length)
     elapsed = time.time() - self.start_time
+    progress = 0 if not self.runner.total else (
+        ((self.runner.total - self.runner.remaining) * 100) //
+          self.runner.total)
     status = self.templates['status_line'] % {
       'passed': self.runner.succeeded,
-      'remaining': (((self.runner.total - self.runner.remaining) * 100) //
-                    self.runner.total),
+      'progress': progress,
       'failed': len(self.runner.failed),
       'test': name,
       'mins': int(elapsed) / 60,
       'secs': int(elapsed) % 60
     }
     status = self.Truncate(status, 78)
     self.last_status_length = len(status)
     print status,
     sys.stdout.flush()
 
 
 class ColorProgressIndicator(CompactProgressIndicator):
 
   def __init__(self):
     templates = {
       'status_line': ("[%(mins)02i:%(secs)02i|"
-                      "\033[34m%%%(remaining) 4d\033[0m|"
+                      "\033[34m%%%(progress) 4d\033[0m|"
                       "\033[32m+%(passed) 4d\033[0m|"
                       "\033[31m-%(failed) 4d\033[0m]: %(test)s"),
       'stdout': "\033[1m%s\033[0m",
       'stderr': "\033[31m%s\033[0m",
     }
     super(ColorProgressIndicator, self).__init__(templates)
 
   def ClearLine(self, last_line_length):
     print "\033[1K\r",
 
 
 class MonochromeProgressIndicator(CompactProgressIndicator):
 
   def __init__(self):
     templates = {
-      'status_line': ("[%(mins)02i:%(secs)02i|%%%(remaining) 4d|"
+      'status_line': ("[%(mins)02i:%(secs)02i|%%%(progress) 4d|"
                       "+%(passed) 4d|-%(failed) 4d]: %(test)s"),
       'stdout': '%s',
       'stderr': '%s',
     }
     super(MonochromeProgressIndicator, self).__init__(templates)
 
   def ClearLine(self, last_line_length):
     print ("\r" + (" " * last_line_length) + "\r"),
 
 
@@ skipping 112 matching lines @@
       "duration": test.duration,
     })
 
 
 PROGRESS_INDICATORS = {
   'verbose': VerboseProgressIndicator,
   'dots': DotsProgressIndicator,
   'color': ColorProgressIndicator,
   'mono': MonochromeProgressIndicator
 }