34: Added tests.unit_common with frequently used utility functions; split ro __setattr__, __delattr__ methods out of Proxy and into new ReadOnly base class; added corresponding unit tests

1 files changed, 63 insertions, 0 deletions

diff --git a/ipalib/tests/unit_common.py b/ipalib/tests/unit_common.py
new file mode 100644
index 00000000..f5c7f0f9
--- /dev/null
+++ b/ipalib/tests/unit_common.py
@@ -0,0 +1,63 @@
+# Authors:
+#   Jason Gerard DeRose <jderose@redhat.com>
+#
+# Copyright (C) 2008  Red Hat
+# see file 'COPYING' for use and warranty information
+#
+# 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; version 2 only
+#
+# 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, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+"""
+Utility functions for unit tests.
+"""
+
+
+def no_set(obj, name):
+	"""
+	Tests that attribute cannot be set.
+	"""
+	raised = False
+	try:
+		setattr(obj, name, 'some_new_obj')
+	except AttributeError:
+		raised = True
+	assert raised
+
+
+def no_del(obj, name):
+	"""
+	Tests that attribute cannot be deleted.
+	"""
+	raised = False
+	try:
+		delattr(obj, name)
+	except AttributeError:
+		raised = True
+	assert raised
+
+
+def read_only(obj, name):
+	"""
+	Tests that attribute is read-only. Returns attribute.
+	"""
+	assert isinstance(obj, object)
+	assert hasattr(obj, name)
+
+	# Test that it cannot be set:
+	no_set(obj, name)
+
+	# Test that it cannot be deleted:
+	no_del(obj, name)
+
+	# Return the attribute
+	return getattr(obj, name)