Remove Retrying Failed Tests.

tools/isolate/run_test_cases.py

 #!/usr/bin/env python
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Runs each test cases as a single shard, single process execution.
 
 Similar to sharding_supervisor.py but finer grained. Runs multiple instances in
 parallel.
 """
@@ skipping 569 matching lines @@
     nb_runs += len(items)
     if not any(not i['returncode'] for i in items):
       fail.append(test_case)
     elif len(items) > 1 and any(not i['returncode'] for i in items):
       flaky.append(test_case)
     elif len(items) == 1 and items[0]['returncode'] == 0:
       success.append(test_case)
     else:
       assert False, items
 
-  # Retry all the failures serially to see if they are just flaky when
-  # run at the same time.
-  if fail:
-    print 'Retrying failed tests serially.'
-    progress = Progress(len(fail))
-    function = Runner(
-        executable, os.getcwd(), timeout, progress, retry_count=1).map
-    test_cases_retry = fail[:]
-
-    for test_case in test_cases_retry:
-      output = function(test_case)
-      progress.print_update()
-      results[output[0]['test_case']].append(output)
-      if not output[0]['returncode']:
-        fail.remove(test_case)
-        flaky.append(test_case)
-
-    LogResults(result_file, results)
-    sys.stdout.write('\n')
-
   print 'Summary:'
   for test_case in sorted(flaky):
     items = results[test_case]
     print '%s is flaky (tried %d times)' % (test_case, len(items))
 
   for test_case in sorted(fail):
     print '%s failed' % (test_case)
 
   print 'Success: %4d %5.2f%%' % (len(success), len(success) * 100. / total)
   print 'Flaky:   %4d %5.2f%%' % (len(flaky), len(flaky) * 100. / total)
@@ skipping 132 matching lines @@
   return run_test_cases(
       executable,
       test_cases,
       options.jobs,
       options.timeout,
       result_file)
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))