Test which fails when Uncategorized category is not yet created [Discourse]

topics_bulk_action_spec.rb

    context "when the category is being set to 'Uncategorized'" do
      it "changes the category and returns the topic_id" do
        topic.update category: category
        tba = TopicsBulkAction.new(topic.user, [topic.id], type: 'change_category', category_id: 0)
        topic_ids = tba.perform!
        topic_ids.should == [topic.id]
        topic.reload
        topic.category.name.should == 'Uncategorized'
      end
    end