def test_exe(self):
     ct = get_credential_format_from_string('exe')
     self.assertEqual(ct, CredentialFormat.EXE)
 def test_pem(self):
     ct = get_credential_format_from_string('pem')
     self.assertEqual(ct, CredentialFormat.PEM)
 def test_deb(self):
     ct = get_credential_format_from_string('deb')
     self.assertEqual(ct, CredentialFormat.DEB)
 def test_rpm(self):
     ct = get_credential_format_from_string('rpm')
     self.assertEqual(ct, CredentialFormat.RPM)
 def test_key(self):
     ct = get_credential_format_from_string('key')
     self.assertEqual(ct, CredentialFormat.KEY)
 def test_none_or_empty(self):
     ct = get_credential_format_from_string(None)
     self.assertIsNone(ct)
     ct = get_credential_format_from_string('')
     self.assertIsNone(ct)
 def test_invalid(self):
     with self.assertRaises(InvalidArgument):
         get_credential_format_from_string('foo')