Added the ability to destroy wiki pages (content and its history are deleted from the database).

This permission has to be explicitly given (Roles & Permissions -> Wiki pages/Delete).

git-svn-id: http://redmine.rubyforge.org/svn/trunk@540 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/unit/wiki_page_test.rb

@@ -18,7 +18,7 @@
 require File.dirname(__FILE__) + '/../test_helper'
 
 class WikiPageTest < Test::Unit::TestCase
-  fixtures :wikis, :wiki_pages, :wiki_contents, :wiki_content_versions
+  fixtures :projects, :wikis, :wiki_pages, :wiki_contents, :wiki_content_versions
 
   def setup
     @wiki = Wiki.find(1)
@@ -47,4 +47,13 @@ class WikiPageTest < Test::Unit::TestCase
     assert_kind_of WikiPage, page
     assert page.new_record?
   end
+  
+  def test_destroy
+    page = WikiPage.find(1)
+    page.destroy
+    assert_nil WikiPage.find_by_id(1)
+    # make sure that page content and its history are deleted
+    assert WikiContent.find_all_by_page_id(1).empty?
+    assert WikiContent.versioned_class.find_all_by_page_id(1).empty?
+  end
 end