Add a more complex spec that ties the various mixins together

spec/iptables/complex_spec.rb

@@ -0,0 +1,24 @@
+require 'spec_helper'
+
+describe IPTables::Rule do
+  context "when creating complex rules" do
+    describe "like allow traffic in on eth1 from 10.0.0.0/24 on port 443 with a new state" do
+      subject do
+        rule = IPTables::Rule.new
+        rule.chain = :input
+        rule.target = :accept
+        rule.protocol = :tcp
+        rule.source = '10.0.0.0/24'
+        rule.destination_port = 443
+        rule.add_module 'state'
+        rule.state = :new
+        rule.in_interface = 'eth1'
+        rule
+      end
+
+      its(:to_iptables) {
+        should == '-A INPUT -i eth1 -s 10.0.0.0/24 -p tcp --dport 443 -m state --state NEW -j ACCEPT'
+      }
+    end
+  end
+end