diff --git a/nova/tests/test_network.py b/nova/tests/test_network.py
index b1d70e32..d3a23abf 100644
--- a/nova/tests/test_network.py
+++ b/nova/tests/test_network.py
@@ -36,61 +36,62 @@ LOG = logging.getLogger('nova.tests.network')
 
 
 class IptablesManagerTestCase(test.TestCase):
-    sample_filter = """# Generated by iptables-save on Fri Feb 18 15:17:05 2011
-*filter
-:INPUT ACCEPT [2223527:305688874]
-:FORWARD ACCEPT [0:0]
-:OUTPUT ACCEPT [2172501:140856656]
-:nova-compute-FORWARD - [0:0]
-:nova-compute-INPUT - [0:0]
-:nova-compute-local - [0:0]
-:nova-compute-OUTPUT - [0:0]
-:nova-filter-top - [0:0]
--A FORWARD -j nova-filter-top 
--A OUTPUT -j nova-filter-top 
--A nova-filter-top -j nova-compute-local 
--A INPUT -j nova-compute-INPUT 
--A OUTPUT -j nova-compute-OUTPUT 
--A FORWARD -j nova-compute-FORWARD 
--A INPUT -i virbr0 -p udp -m udp --dport 53 -j ACCEPT 
--A INPUT -i virbr0 -p tcp -m tcp --dport 53 -j ACCEPT 
--A INPUT -i virbr0 -p udp -m udp --dport 67 -j ACCEPT 
--A INPUT -i virbr0 -p tcp -m tcp --dport 67 -j ACCEPT 
--A FORWARD -s 192.168.122.0/24 -i virbr0 -j ACCEPT 
--A FORWARD -i virbr0 -o virbr0 -j ACCEPT 
--A FORWARD -o virbr0 -j REJECT --reject-with icmp-port-unreachable 
--A FORWARD -i virbr0 -j REJECT --reject-with icmp-port-unreachable 
-COMMIT
-# Completed on Fri Feb 18 15:17:05 2011"""
+    sample_filter = ['#Generated by iptables-save on Fri Feb 18 15:17:05 2011',
+                     '*filter',
+                     ':INPUT ACCEPT [2223527:305688874]',
+                     ':FORWARD ACCEPT [0:0]',
+                     ':OUTPUT ACCEPT [2172501:140856656]',
+                     ':nova-compute-FORWARD - [0:0]',
+                     ':nova-compute-INPUT - [0:0]',
+                     ':nova-compute-local - [0:0]',
+                     ':nova-compute-OUTPUT - [0:0]',
+                     ':nova-filter-top - [0:0]',
+                     '-A FORWARD -j nova-filter-top ',
+                     '-A OUTPUT -j nova-filter-top ',
+                     '-A nova-filter-top -j nova-compute-local ',
+                     '-A INPUT -j nova-compute-INPUT ',
+                     '-A OUTPUT -j nova-compute-OUTPUT ',
+                     '-A FORWARD -j nova-compute-FORWARD ',
+                     '-A INPUT -i virbr0 -p udp -m udp --dport 53 -j ACCEPT ',
+                     '-A INPUT -i virbr0 -p tcp -m tcp --dport 53 -j ACCEPT ',
+                     '-A INPUT -i virbr0 -p udp -m udp --dport 67 -j ACCEPT ',
+                     '-A INPUT -i virbr0 -p tcp -m tcp --dport 67 -j ACCEPT ',
+                     '-A FORWARD -s 192.168.122.0/24 -i virbr0 -j ACCEPT ',
+                     '-A FORWARD -i virbr0 -o virbr0 -j ACCEPT ',
+                     '-A FORWARD -o virbr0 -j REJECT --reject-with '
+                     'icmp-port-unreachable ',
+                     '-A FORWARD -i virbr0 -j REJECT --reject-with '
+                     'icmp-port-unreachable ',
+                     'COMMIT',
+                     '# Completed on Fri Feb 18 15:17:05 2011']
 
-    sample_nat = """# Generated by iptables-save on Fri Feb 18 15:17:05 2011
-*nat
-:PREROUTING ACCEPT [3936:762355]
-:INPUT ACCEPT [2447:225266]
-:OUTPUT ACCEPT [63491:4191863]
-:POSTROUTING ACCEPT [63112:4108641]
-:nova-compute-OUTPUT - [0:0]
-:nova-compute-floating-ip-snat - [0:0]
-:nova-compute-SNATTING - [0:0]
-:nova-compute-PREROUTING - [0:0]
-:nova-compute-POSTROUTING - [0:0]
-:nova-postrouting-bottom - [0:0]
--A PREROUTING -j nova-compute-PREROUTING 
--A OUTPUT -j nova-compute-OUTPUT 
--A POSTROUTING -j nova-compute-POSTROUTING 
--A POSTROUTING -j nova-postrouting-bottom 
--A nova-postrouting-bottom -j nova-compute-SNATTING 
--A nova-compute-SNATTING -j nova-compute-floating-ip-snat 
-COMMIT
-# Completed on Fri Feb 18 15:17:05 2011
-"""
+    sample_nat = ['# Generated by iptables-save on Fri Feb 18 15:17:05 2011',
+                  '*nat',
+                  ':PREROUTING ACCEPT [3936:762355]',
+                  ':INPUT ACCEPT [2447:225266]',
+                  ':OUTPUT ACCEPT [63491:4191863]',
+                  ':POSTROUTING ACCEPT [63112:4108641]',
+                  ':nova-compute-OUTPUT - [0:0]',
+                  ':nova-compute-floating-ip-snat - [0:0]',
+                  ':nova-compute-SNATTING - [0:0]',
+                  ':nova-compute-PREROUTING - [0:0]',
+                  ':nova-compute-POSTROUTING - [0:0]',
+                  ':nova-postrouting-bottom - [0:0]',
+                  '-A PREROUTING -j nova-compute-PREROUTING ',
+                  '-A OUTPUT -j nova-compute-OUTPUT ',
+                  '-A POSTROUTING -j nova-compute-POSTROUTING ',
+                  '-A POSTROUTING -j nova-postrouting-bottom ',
+                  '-A nova-postrouting-bottom -j nova-compute-SNATTING ',
+                  '-A nova-compute-SNATTING -j nova-compute-floating-ip-snat ',
+                  'COMMIT',
+                  '# Completed on Fri Feb 18 15:17:05 2011']
 
     def setUp(self):
         super(IptablesManagerTestCase, self).setUp()
         self.manager = linux_net.IptablesManager()
 
     def test_filter_rules_are_wrapped(self):
-        current_lines = self.sample_filter.split('\n')
+        current_lines = self.sample_filter
 
         table = self.manager.ipv4['filter']
         table.add_rule('FORWARD', '-s 1.2.3.4/5 -j DROP')
@@ -104,7 +105,7 @@ COMMIT
                         '-s 1.2.3.4/5 -j DROP' not in new_lines)
 
     def test_nat_rules(self):
-        current_lines = self.sample_nat.split('\n')
+        current_lines = self.sample_nat
         new_lines = self.manager._modify_rules(current_lines,
                                                self.manager.ipv4['nat'])
 
@@ -139,7 +140,7 @@ COMMIT
                             "Built-in chain %s not wrapped" % (chain,))
 
     def test_filter_rules(self):
-        current_lines = self.sample_filter.split('\n')
+        current_lines = self.sample_filter
         new_lines = self.manager._modify_rules(current_lines,
                                                self.manager.ipv4['filter'])