use Scripting.Dictionary instead of InternetExplorer.Application.

* spec/ruby/library/win32ole/invoke_spec.rb: use Scripting.Dictionary
  instead of InternetExplorer.Application. InternetExplorer.Application
  is not available on some environment. Thanks to MSP-Greg (Greg L).

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65399 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

spec/ruby/library/win32ole/win32ole/invoke_spec.rb

@@ -5,15 +5,12 @@ platform_is :windows do
 
   describe "WIN32OLE#invoke" do
     before :each do
-      @ie = WIN32OLESpecs.new_ole('InternetExplorer.Application')
+      @dict = WIN32OLESpecs.new_ole('Scripting.Dictionary')
     end
 
-    after :each do
-      @ie.Quit
-    end
-
-    it "get name by invoking 'Name' OLE method" do
-      @ie.invoke('Name').should =~ /explorer/i
+    it "get value by invoking 'Item' OLE method" do
+      @dict.add('key', 'value')
+      @dict.invoke('Item', 'key').should == 'value'
     end
   end
 end