diff --git a/spec/defines/iface_spec.rb b/spec/defines/iface_spec.rb
index ec08d59..c239b13 100644
--- a/spec/defines/iface_spec.rb
+++ b/spec/defines/iface_spec.rb
@@ -21,3 +21,47 @@
     should contain_concat__fragment('interfaces::iface_eth0').with_content("iface eth0 inet dhcp\n\t\n\n")
   }
 end
+
+describe 'interfaces::iface' do
+  let(:title) { 'eth0' }
+  let(:params) { { :family => 'inet', :method => 'static', :options => ['address 192.0.2.1','netmask 255.255.255.0','gateway 192.0.2.2'], :auto => 1 } }
+
+  it {
+    should contain_interfaces__auto('eth0')
+    should contain_concat__fragment('interfaces::iface_eth0').with_target('/etc/network/interfaces')
+    should contain_concat__fragment('interfaces::iface_eth0').with_content("iface eth0 inet static\n\taddress 192.0.2.1\n\tnetmask 255.255.255.0\n\tgateway 192.0.2.2\n\n")
+  }
+end
+
+describe 'interfaces::iface' do
+  let(:title) { 'eth0.123' }
+  let(:params) { { :family => 'inet', :method => 'dhcp', :options => ['vlan_raw_device eth0'], :auto => 1 } }
+
+  it {
+    should contain_interfaces__auto('eth0.123')
+    should contain_concat__fragment('interfaces::iface_eth0.123').with_target('/etc/network/interfaces')
+    should contain_concat__fragment('interfaces::iface_eth0.123').with_content("iface eth0.123 inet dhcp\n\tvlan_raw_device eth0\n\n")
+  }
+end
+
+describe 'interfaces::iface' do
+  let(:title) { 'eth0' }
+  let(:params) { { :family => 'inet6', :method => 'static', :options => ['address 2001:db8::1','netmask 64'], :auto => 1 } }
+
+  it {
+    should contain_interfaces__auto('eth0')
+    should contain_concat__fragment('interfaces::iface_eth0').with_target('/etc/network/interfaces')
+    should contain_concat__fragment('interfaces::iface_eth0').with_content("iface eth0 inet6 static\n\taddress 2001:db8::1\n\tnetmask 64\n\n")
+  }
+end
+
+describe 'interfaces::iface' do
+  let(:title) { 'eth0v6' }
+  let(:params) { { :ifname => 'eth0', :family => 'inet6', :method => 'static', :options => ['address 2001:db8::1','netmask 64'], :auto => 1 } }
+
+  it {
+    should contain_interfaces__auto('eth0')
+    should contain_concat__fragment('interfaces::iface_eth0v6').with_target('/etc/network/interfaces')
+    should contain_concat__fragment('interfaces::iface_eth0v6').with_content("iface eth0 inet6 static\n\taddress 2001:db8::1\n\tnetmask 64\n\n")
+  }
+end