Add forgive_all to enable experimental builders.

scripts/slave/unittests/gatekeeper_ng_test.py

 #!/usr/bin/env python
 # Copyright 2013 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.
 
 """Unit tests for gatekeeper_ng.py.
 
 This is a basic check that gatekeeper_ng.py can properly interpret builds and
 close the tree.
 
@@ skipping 842 matching lines @@
 
     self.masters[0].builders[0].builds[0].steps[1].results = [2, None]
     self.add_gatekeeper_section(self.masters[0].url,
                                 self.masters[0].builders[0].name,
                                 {'forgiving_steps': ['step1']})
     urls = self.call_gatekeeper()
 
     self.assertNotIn(self.mailer_url, urls)
     self.assertIn(self.status_url, urls)
 
+  def testForgiveAllSteps(self):
+    """Test that setting forgive_all prevents emailing the blamelist."""
+    sys.argv.extend([m.url for m in self.masters])
+    sys.argv.extend(['--skip-build-db-update',
+                     '--json', self.gatekeeper_file,
+                     '--email-app-secret-file=%s' % self.email_secret_file,
+                     '--set-status', '--password-file', self.status_secret_file
+                     ])
+
+    self.masters[0].builders[0].builds[0].steps[1].results = [2, None]
+    self.add_gatekeeper_section(self.masters[0].url,
+                                self.masters[0].builders[0].name,
+                                {'closing_steps': ['step1'],
+                                 'forgive_all': 'true'})
+    urls = self.call_gatekeeper()
+
+    self.assertNotIn(self.mailer_url, urls)
+    self.assertIn(self.status_url, urls)
 
   #### Multiple failures.
 
   def testSequentialFailures(self):
     """Test that the status app is only hit once if many failures are seen."""
     sys.argv.extend([m.url for m in self.masters])
     sys.argv.extend(['--skip-build-db-update',
                      '--json', self.gatekeeper_file,
                      '--email-app-secret-file=%s' % self.email_secret_file,
                      '--set-status', '--password-file', self.status_secret_file
@@ skipping 575 matching lines @@
   def testCheckedInConfigIsValid(self):
     sys.argv.extend(['--verify',
                      '--json',
                      os.path.join(SCRIPT_DIR, os.pardir, 'gatekeeper.json')])
     self.call_gatekeeper()
 
 
 if __name__ == '__main__':
   with utils.print_coverage(include=[__file__]):
     unittest.main()