401 Error: invalid_client about cloudprint_logocert HOT 2 CLOSED

Did you set up the client you are using in the Google Developers console? It seems like it may not be set up yet. Follow the instructions in the README file for setting up the test client in the Google Developers console. Mainly these instructions:

1. Test Account - Use a test account that uses Gmail, in order to properly
   authenticate against Google properties and also use OAuth2 credentials. Once
   you have obtained a test account, obtain OAuth2 credentials from the Google
   Developers Console. You'll also need a 2nd test account, without the OAuth2
   credentials.

• Log in with your test account at https://accounts.google.com/
• Access the Google Developers Console: https://console.developers.google.com
• Create a project
• Access the project you just created
• Select the APIs & auth tab
• Select the Credentials link
• Two tokens are needed: under Client ID for native applications, copy the
  -- Client ID
  -- Client Secret

And then add the gmail account, password, Client ID, and Client Secret to the USER section in the _config.py file.

from cloudprint_logocert.

OK, I can run and get pre-test results Now.
Thanks a lot ! (I ignore "RunAfter24Hours" first.)

suite.addTest(unittest.makeSuite(SystemUnderTest))
suite.addTest(unittest.makeSuite(Privet))
suite.addTest(unittest.makeSuite(PreRegistration))
suite.addTest(unittest.makeSuite(Registration))
suite.addTest(unittest.makeSuite(PostRegistration))
suite.addTest(unittest.makeSuite(LocalDiscovery))
suite.addTest(unittest.makeSuite(LocalPrinting))
suite.addTest(unittest.makeSuite(ChromePrinting))
suite.addTest(unittest.makeSuite(Printer))
suite.addTest(unittest.makeSuite(PrinterState))
suite.addTest(unittest.makeSuite(JobState))
suite.addTest(unittest.makeSuite(Printing))
suite.addTest(unittest.makeSuite(Unregister))
suite.addTest(unittest.makeSuite(PostUnregister))

from cloudprint_logocert.