refactoring define AvailableOLE.sysmon_available?

* test/win32ole/test_win32ole_type_event.rb: refactoring. use
  AvailableOLE.sysmon_available?

* test/win32ole/available_ole.rb: define AvailableOLE.sysmon_available?

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65236 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/win32ole/available_ole.rb

@@ -0,0 +1,17 @@
+begin
+  require 'win32ole'
+rescue LoadError
+end
+
+if defined?(WIN32OLE)
+  module AvailableOLE
+    module_function
+
+    def sysmon_available?
+      WIN32OLE_TYPE.new('System Monitor Control', 'SystemMonitor')
+      true
+    rescue
+      false
+    end
+  end
+end

test/win32ole/test_win32ole_type_event.rb

@@ -7,15 +7,10 @@ end
 require 'test/unit'
 
 if defined?(WIN32OLE_TYPE)
-  def sysmon_available?
-    WIN32OLE_TYPE.new('System Monitor Control', 'SystemMonitor')
-    true
-  rescue
-    false
-  end
+  require_relative 'available_ole'
 
   class TestWIN32OLE_TYPE_EVENT < Test::Unit::TestCase
-    unless sysmon_available?
+    unless AvailableOLE.sysmon_available?
       def test_dummy_for_skip_message
         skip 'System Monitor Control is not available'
       end