fixes #749, fixes tag alias related regressions

test/unit/tag_alias_correction_test.rb

@@ -13,6 +13,7 @@ class TagAliasTest < ActiveSupport::TestCase
     end
 
     teardown do
+      MEMCACHE.flush_all
       CurrentUser.user = nil
       CurrentUser.ip_addr = nil
     end
@@ -28,7 +29,7 @@ class TagAliasTest < ActiveSupport::TestCase
         assert_equal("zzz", @correction.statistics_hash["antecedent_cache"])
         assert_nil(@correction.statistics_hash["consequent_cache"])
         assert_equal(-3, @correction.statistics_hash["antecedent_count"])
-        assert_nil(@correction.statistics_hash["consequent_count"])
+        assert_equal(1, @correction.statistics_hash["consequent_count"])
       end
       
       should "render to json" do

test/unit/tag_alias_test.rb

@@ -73,5 +73,13 @@ class TagAliasTest < ActiveSupport::TestCase
       assert_not_equal(tag_alias.creator_id, post.uploader_id)
       assert_equal(tag_alias.creator_id, post.versions.last.updater_id)
     end
+    
+    should "push the antecedent's category to the consequent" do
+      tag1 = FactoryGirl.create(:tag, :name => "aaa", :category => 1)
+      tag2 = FactoryGirl.create(:tag, :name => "bbb")
+      ta = FactoryGirl.create(:tag_alias, :antecedent_name => "aaa", :consequent_name => "bbb")
+      tag2.reload
+      assert_equal(1, tag2.category)
+    end
   end
 end