test: add invalid TSIG test to confirm a failure is raised if key name isn't the good one

tests/monkey.py

@@ -88,6 +88,11 @@ def gen_configs():
     with open(accountAsDomain.name, 'w') as configfile:
         config.write(configfile)
     
+    invalidTSIGName = NamedTemporaryFile()
+    config["TSIGKeyring"]["KeyName"] = "{0}.invalid".format(TSIGKEYNAME)
+    with open(invalidTSIGName.name, 'w') as configfile:
+        config.write(configfile)
+    
     missingDNS = NamedTemporaryFile()
     config["DNS"] = {}
     with open(missingDNS.name, 'w') as configfile:
@@ -99,6 +104,7 @@ def gen_configs():
         "goodSAN": goodSAN,
         "weakKey": weakKey,
         "accountAsDomain": accountAsDomain,
+        "invalidTSIGName": invalidTSIGName,
         "missingDNS": missingDNS,
         "key": {"accountkey": account_key,
                  "weakkey": weak_key,

tests/test_module.py

@@ -83,6 +83,15 @@ class TestModule(unittest.TestCase):
         self.assertIsInstance(result, ValueError)
         self.assertIn("Certificate public key must be different than account key", result.args[0])
 
+    def test_failure_dns_update_tsigkeyname(self):
+        """ Fail to update DNS records by invalid TSIG Key name """
+        try:
+            result = acme_dns_tiny.main([CONFIGS['invalidTSIGName'].name])
+        except Exception as e:
+            result = e
+        self.assertIsInstance(result, ValueError)
+        self.assertIn("Error updating DNS", result.args[0])
+
     def test_failure_notcompleted_configuration(self):
         """ Configuration file have to be completed """
         try: