From d193fee401d606f6120ac11819a0127e7ee92458 Mon Sep 17 00:00:00 2001
From: kali <kali@leap.se>
Date: Tue, 26 Mar 2013 01:15:44 +0900
Subject: tests for srpregister and srpauth

in this commit too, the twisted fake_provider implementation
---
 src/leap/crypto/tests/test_srpauth.py | 136 ++++++++++++++++++++++++++++++++++
 1 file changed, 136 insertions(+)
 create mode 100644 src/leap/crypto/tests/test_srpauth.py

(limited to 'src/leap/crypto/tests/test_srpauth.py')

diff --git a/src/leap/crypto/tests/test_srpauth.py b/src/leap/crypto/tests/test_srpauth.py
new file mode 100644
index 00000000..ce9403c7
--- /dev/null
+++ b/src/leap/crypto/tests/test_srpauth.py
@@ -0,0 +1,136 @@
+# -*- coding: utf-8 -*-
+# test_srpauth.py
+# Copyright (C) 2013 LEAP
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""
+Tests for leap/crypto/srpauth.py
+"""
+try:
+    import unittest
+except ImportError:
+    import unittest
+import os
+import sys
+
+from mock import MagicMock
+from nose.twistedtools import reactor, threaded_reactor, stop_reactor
+from twisted.python import log
+
+from leap.common.testing.https_server import where
+from leap.config.providerconfig import ProviderConfig
+from leap.crypto import srpauth
+from leap.crypto import srpregister
+from leap.crypto.tests import fake_provider
+
+log.startLogging(sys.stdout)
+
+
+def _get_capath():
+    return where("cacert.pem")
+
+_here = os.path.split(__file__)[0]
+
+
+class ImproperlyConfiguredError(Exception):
+    """
+    Raised if the test provider is missing configuration
+    """
+
+
+class SRPRegisterTestCase(unittest.TestCase):
+    """
+    Tests for the SRP Authentication class
+    """
+    __name__ = "SRPAuth tests"
+
+    @classmethod
+    def setUpClass(cls):
+        """
+        Sets up this TestCase with a simple and faked provider instance:
+
+        * runs a threaded reactor
+        * loads a mocked ProviderConfig that points to the certs in the
+          leap.common.testing module.
+        """
+        factory = fake_provider.get_provider_factory()
+        reactor.listenTCP(8000, factory)
+        reactor.listenSSL(
+            8443, factory,
+            fake_provider.OpenSSLServerContextFactory())
+        threaded_reactor()
+
+        provider = ProviderConfig()
+        provider.get_ca_cert_path = MagicMock()
+        provider.get_ca_cert_path.return_value = _get_capath()
+        loaded = provider.load(path=os.path.join(
+            _here, "test_provider.json"))
+        if not loaded:
+            raise ImproperlyConfiguredError(
+                "Could not load test provider config")
+        cls.provider = provider
+        cls.register = srpregister.SRPRegister(provider_config=provider)
+        cls.auth = srpauth.SRPAuth(provider)
+        cls._auth_instance = cls.auth.__dict__['_SRPAuth__instance']
+        cls.authenticate = cls._auth_instance.authenticate
+        cls.logout = cls._auth_instance.logout
+
+    @classmethod
+    def tearDownClass(cls):
+        """
+        Stops reactor when tearing down the class
+        """
+        stop_reactor()
+
+    def test_auth(self):
+        """
+        Checks whether a pair of valid credentials is able to be authenticated.
+        """
+        TEST_USER = "register_test_auth"
+        TEST_PASS = "pass"
+
+        # pristine registration, should go well
+        ok = self.register.register_user(TEST_USER, TEST_PASS)
+        self.assertTrue(ok)
+
+        self.authenticate(TEST_USER, TEST_PASS)
+        with self.assertRaises(AssertionError):
+            # AssertionError: already logged in
+            # We probably could take this as its own exception
+            self.authenticate(TEST_USER, TEST_PASS)
+
+        self.logout()
+
+        # cannot log out two times in a row (there's no session)
+        with self.assertRaises(AssertionError):
+            self.logout()
+
+    def test_auth_with_bad_credentials(self):
+        """
+        Checks that auth does not succeed with bad credentials.
+        """
+        TEST_USER = "register_test_auth"
+        TEST_PASS = "pass"
+
+        # non-existent credentials, should fail
+        with self.assertRaises(srpauth.SRPAuthenticationError):
+            self.authenticate("baduser_1", "passwrong")
+
+        # good user, bad password, should fail
+        with self.assertRaises(srpauth.SRPAuthenticationError):
+            self.authenticate(TEST_USER, "passwrong")
+
+        # bad user, good password, should fail too :)
+        with self.assertRaises(srpauth.SRPAuthenticationError):
+            self.authenticate("myunclejoe", TEST_PASS)
-- 
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