diff --git a/test/test_slots.py b/test/test_slots.py
index 0104e84..524006f 100644
--- a/test/test_slots.py
+++ b/test/test_slots.py
@@ -4,10 +4,13 @@ from py.test import raises
 
 from tiramisu.config import Config, SubConfig
 from tiramisu.option import ChoiceOption, BoolOption, IntOption, FloatOption, \
-    StrOption, OptionDescription, SymLinkOption, UnicodeOption
+    StrOption, SymLinkOption, UnicodeOption, IPOption, OptionDescription, \
+    PortOption, NetworkOption, NetmaskOption, DomainnameOption
 
 
 def test_slots_option():
+    c = ChoiceOption('a', '', ('a',))
+    raises(AttributeError, "c.x = 1")
     c = BoolOption('a', '')
     raises(AttributeError, "c.x = 1")
     c = IntOption('a', '')
@@ -20,10 +23,18 @@ def test_slots_option():
     raises(AttributeError, "c.x = 1")
     c = UnicodeOption('a', '')
     raises(AttributeError, "c.x = 1")
-    c = ChoiceOption('a', '', ('a',))
+    c = IPOption('a', '')
     raises(AttributeError, "c.x = 1")
     c = OptionDescription('a', '', [])
     raises(AttributeError, "c.x = 1")
+    c = PortOption('a', '')
+    raises(AttributeError, "c.x = 1")
+    c = NetworkOption('a', '')
+    raises(AttributeError, "c.x = 1")
+    c = NetmaskOption('a', '')
+    raises(AttributeError, "c.x = 1")
+    c = DomainnameOption('a', '')
+    raises(AttributeError, "c.x = 1")
 
 
 def test_slots_config():