[1259] Test for creating of the diff

src/lib/python/isc/xfrin/tests/Makefile.am

@@ -1,5 +1,5 @@
 PYCOVERAGE_RUN = @PYCOVERAGE_RUN@
-PYTESTS = 
+PYTESTS = diff_tests.py
 EXTRA_DIST = $(PYTESTS)
 
 # If necessary (rare cases), explicitly specify paths to dynamic libraries

src/lib/python/isc/xfrin/tests/diff_tests.py

@@ -0,0 +1,69 @@
+# Copyright (C) 2011  Internet Systems Consortium.
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SYSTEMS CONSORTIUM
+# DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+# INTERNET SYSTEMS CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
+# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
+# FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+# WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+import isc.log
+import unittest
+from isc.dns import Name
+from isc.xfrin.diff import Diff, NoSuchZone
+
+class DiffTest(unittest.TestCase):
+    """
+    Tests for the isc.xfrin.diff.Diff class.
+
+    It also plays role of a data source and an updater, so it can manipulate
+    some test variables while being called.
+    """
+    def setUp(self):
+        """
+        This sets internal variables so we can see nothing was called yet.
+        """
+        self.__updater_requested = False
+
+    def get_updater(self, zone_name, replace):
+        """
+        This one pretends this is the data source client and serves
+        getting an updater.
+
+        If zone_name is 'none.example.org.', it returns None, otherwise
+        it returns self.
+        """
+        # The diff should not delete the old data.
+        self.assertFalse(replace)
+        self.__updater_requested = True
+        # Pretend this zone doesn't exist
+        if zone_name == Name('none.example.org.'):
+            return None
+        else:
+            return self
+
+    def test_create(self):
+        """
+        This test the case when the diff is successfuly created. It just
+        tries it does not throw and gets the updater.
+        """
+        diff = Diff(self, Name('example.org.'))
+        self.assertTrue(self.__updater_requested)
+
+    def test_create_nonexist(self):
+        """
+        Try to create a diff on a zone that doesn't exist. This should
+        raise a correct exception.
+        """
+        self.assertRaises(NoSuchZone, Diff, self, Name('none.example.org.'))
+        self.assertTrue(self.__updater_requested)
+
+if __name__ == "__main__":
+    isc.log.init("bind10")
+    unittest.main()