Make mojob.py test print a summary at the end.

mojo/tools/mojob.py

 #!/usr/bin/env python
 # Copyright 2014 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.
 
 # This a simple script to make building/testing Mojo components easier.
 
 import argparse
 from copy import deepcopy
 import os
@@ skipping 104 matching lines @@
 def _run_tests(config, test_types):
   """Runs the tests of the given type(s) for the given config."""
 
   assert isinstance(test_types, list)
   config = deepcopy(config)
   config.values['test_types'] = test_types
 
   test_list = GetTestList(config)
   dry_run = config.values.get('dry_run')
   final_exit_code = 0
+  failure_list = []
   for entry in test_list:
     print 'Running: %s' % entry['name']
     print 'Command: %s' % entry['command']
     if dry_run:
       continue
 
     exit_code = subprocess.call(entry['command'])
-    if not final_exit_code:
-      final_exit_code = exit_code
+    if exit_code:
+      if not final_exit_code:
+        final_exit_code = exit_code
+      failure_list.append(entry['name'])
+
+  print 72 * '='
+  print 'SUMMARY:',
+  if dry_run:
+    print 'Dry run: no tests run'
+  elif not failure_list:
+    assert not final_exit_code
+    print 'All tests passed'
+  else:
+    assert final_exit_code
+    print 'The following had failures:', ', '.join(failure_list)
+
   return final_exit_code
 
 
 def test(config):
   return _run_tests(config, [Config.TEST_TYPE_DEFAULT])
 
 
 def perftest(config):
   return _run_tests(config, [Config.TEST_TYPE_PERF])
 
@@ skipping 93 matching lines @@
       help='Run NaCl unit tests (does not build).')
   nacltest_parser.set_defaults(func=nacltest)
 
   args = parser.parse_args()
   config = _args_to_config(args)
   return args.func(config)
 
 
 if __name__ == '__main__':
   sys.exit(main())