Merge pull request #169 from mizzy/interface-type

Add interface type

lib/serverspec/commands/linux.rb

@@ -23,6 +23,10 @@ def check_selinux(mode)
       def check_kernel_module_loaded(name)
         "lsmod | grep ^#{name}"
       end
+
+      def get_interface_speed_of(name)
+        "ethtool #{name} | grep Speed | gawk '{print gensub(/Speed: ([0-9]+)Mb\\\/s/,\"\\\\1\",\"\")}'"
+      end
     end
   end
 end

lib/serverspec/helper/type.rb

@@ -3,7 +3,7 @@ module Helper
     module Type
       types = %w(
         base yumrepo service package port file cron command linux_kernel_parameter iptables host
-        routing_table default_gateway selinux user group zfs ipnat ipfilter kernel_module
+        routing_table default_gateway selinux user group zfs ipnat ipfilter kernel_module interface
       )
 
       types.each {|type| require "serverspec/type/#{type}" }

lib/serverspec/type/interface.rb

@@ -0,0 +1,12 @@
+module Serverspec
+  module Type
+    class Interface < Base
+      def speed
+        ret = backend.run_command(commands.get_interface_speed_of(@name))
+        val = ret[:stdout].strip
+        val = val.to_i if val.match(/^\d+$/)
+        val
+      end
+    end
+  end
+end

spec/debian/commands_spec.rb

@@ -61,6 +61,8 @@
   it_behaves_like 'support command check_access_by_user'
 
   it_behaves_like 'support command check_kernel_module_loaded', 'lp'
+
+  it_behaves_like 'support command get_interface_speed_of', 'eth0'
 end
 
 describe 'check_enabled' do

spec/debian/interface_spec.rb

@@ -0,0 +1,7 @@
+require 'spec_helper'
+
+include Serverspec::Helper::Debian
+
+describe 'Serverspec interface matchers of Debian family' do
+  it_behaves_like 'support interface matcher', 'eth0'
+end

spec/gentoo/commands_spec.rb

@@ -61,6 +61,8 @@
   it_behaves_like 'support command check_access_by_user'
 
   it_behaves_like 'support command check_kernel_module_loaded', 'lp'
+
+  it_behaves_like 'support command get_interface_speed_of', 'eth0'
 end
 
 describe 'check_enabled' do

spec/gentoo/interface_spec.rb

@@ -0,0 +1,7 @@
+require 'spec_helper'
+
+include Serverspec::Helper::Gentoo
+
+describe 'Serverspec interface matchers of Gentoo family' do
+  it_behaves_like 'support interface matcher', 'eth0'
+end

spec/redhat/commands_spec.rb

@@ -59,6 +59,8 @@
   it_behaves_like 'support command get_mode'
 
   it_behaves_like 'support command check_kernel_module_loaded', 'lp'
+
+  it_behaves_like 'support command get_interface_speed_of', 'eth0'
 end
 
 describe 'check_enabled' do

spec/redhat/interface_spec.rb

@@ -0,0 +1,7 @@
+require 'spec_helper'
+
+include Serverspec::Helper::RedHat
+
+describe 'Serverspec interface matchers of Red Hat family' do
+  it_behaves_like 'support interface matcher', 'eth0'
+end

spec/support/shared_commands_examples.rb

@@ -270,3 +270,8 @@
   subject { commands.check_kernel_module_loaded(name) }
   it { should eq "lsmod | grep ^#{name}" }
 end
+
+shared_examples_for 'support command get_interface_speed_of' do |name|
+  subject { commands.get_interface_speed_of(name) }
+  it { should eq "ethtool eth0 | grep Speed | gawk '{print gensub(/Speed: ([0-9]+)Mb\\/s/,\"\\\\1\",\"\")}'" }
+end

spec/support/shared_interface_examples.rb

@@ -0,0 +1,17 @@
+shared_examples_for 'support interface matcher' do |name|
+  describe 'interface' do
+    before :all do
+      RSpec.configure do |c|
+        c.stdout = "1000"
+      end
+    end
+
+    describe interface(name) do
+      its(:speed) { should eq 1000 }
+    end
+
+    describe interface('invalid-interface') do
+      its(:speed) { should_not eq 100 }
+    end
+  end
+end