add megaraid_product_name fact

lib/facter/megaraid_product_name.rb

@@ -0,0 +1,13 @@
+Facter.add(:megaraid_product_name) do
+  megacli = Facter.value(:megacli)
+
+  setcode do
+    unless megacli.nil?
+      output = Facter::Util::Resolution.exec("#{megacli} -Version -Ctrl -aALL")
+      next if output.nil?
+      m = output.match(/Product Name : (.+)\s*$/)
+      next unless m.size == 2
+      m[1]
+    end
+  end
+end

spec/fixtures/megacli/version-ctrl-aall-8.07.07

@@ -0,0 +1,10 @@
+
+        CTRL VERSION:
+        ================
+
+Product Name : LSI MegaRAID SAS 9286CV-8e
+Serial No : SV22925366
+Fw Package Build : 23.22.0-0012
+FW Version : 3.340.05-2939
+
+Exit Code: 0x00

spec/unit/facts/megaraid_product_name_spec.rb

@@ -0,0 +1,31 @@
+require 'spec_helper'
+
+describe 'megaraid_product_name', :type => :fact do
+  before(:each) { Facter.clear }
+
+  context 'megacli fact not set' do
+    it 'should return nil' do
+      Facter.fact(:megacli).stubs(:value).returns(nil)
+      Facter.fact(:megaraid_product_name).value.should be_nil
+    end
+  end
+
+  context 'megacli fact is broken' do
+    it 'should return nil' do
+      Facter.fact(:megacli).stubs(:value).returns('foobar')
+      Facter.fact(:megaraid_product_name).value.should be_nil
+    end
+  end
+
+  context 'megacli fact is working' do
+    it 'should get the version string' do
+      Facter.fact(:megacli).stubs(:value).returns('/usr/bin/MegaCli')
+      Facter::Util::Resolution.stubs(:exec).
+        with('/usr/bin/MegaCli -Version -Ctrl -aALL').
+        returns(File.read(fixtures('megacli', 'version-ctrl-aall-8.07.07')))
+      Facter.fact(:megaraid_product_name).value.should == 'LSI MegaRAID SAS 9286CV-8e'
+    end
+  end
+
+end
+