discourse/spec/models/category_spec.rb

# encoding: utf-8

require 'spec_helper'

describe Category do
  it { should validate_presence_of :user_id }
  it { should validate_presence_of :name }

  it 'validates uniqueness of name' do
    Fabricate(:category)
    should validate_uniqueness_of(:name)
  end

  it { should belong_to :topic }
  it { should belong_to :user }

  it { should have_many :topics }
  it { should have_many :category_featured_topics }
  it { should have_many :featured_topics }

  describe "security" do
    it "secures categories correctly" do
      category = Fabricate(:category)

      category.secure?.should be_false

      category.deny(:all)
      category.secure?.should be_true

      category.allow(:all)
      category.secure?.should be_false

      user = Fabricate(:user)
      user.secure_categories.to_a.should == []

      group = Fabricate(:group)
      group.add(user)
      group.save

      category.allow(group)
      category.save

      user.reload
      user.secure_categories.to_a.should == [category]

    end
  end

  describe "uncategorized name" do
    let(:category) { Fabricate.build(:category, name: SiteSetting.uncategorized_name) }

    it "is invalid to create a category with the reserved name" do
      category.should_not be_valid
    end
  end

  describe "short name" do
    let!(:category) { Fabricate(:category, name: 'xx') }

    it "creates the category" do
      category.should be_present
    end

    it 'has one topic' do
      Topic.where(category_id: category.id).count.should == 1
    end
  end

  describe 'caching' do
    it "invalidates the site cache on creation" do
      Site.expects(:invalidate_cache).once
      Fabricate(:category)
    end

    it "invalidates the site cache on update" do
      cat = Fabricate(:category)
      Site.expects(:invalidate_cache).once
      cat.update_attributes(name: 'new name')
    end

    it "invalidates the site cache on destroy" do
      cat = Fabricate(:category)
      Site.expects(:invalidate_cache).once
      cat.destroy
    end
  end

  describe 'non-english characters' do
    let(:category) { Fabricate(:category, name: "電車男") }

    it "creates a blank slug, this is OK." do
      category.slug.should be_blank
    end
  end

  describe 'after create' do
    before do
      @category = Fabricate(:category)
      @topic = @category.topic
    end

    it 'is created correctly' do
      @category.slug.should == 'amazing-category'

      @category.hotness.should == 5.0

      @category.description.should be_blank

      Topic.where(category_id: @category).count.should == 1

      @topic.should be_present

      @topic.category.should == @category

      @topic.should be_visible

      @topic.pinned_at.should be_present

      Guardian.new(@category.user).can_delete?(@topic).should be_false

      @topic.posts.count.should == 1

      @category.topic_url.should be_present
    end

    describe "creating a new category with the same slug" do
      it "should have a blank slug" do
        Fabricate(:category, name: "Amazing Categóry").slug.should be_blank
      end
    end

    describe "trying to change the category topic's category" do
      before do
        @new_cat = Fabricate(:category, name: '2nd Category', user: @category.user)
        @topic.change_category(@new_cat.name)
        @topic.reload
        @category.reload
      end

      it 'does not cause changes' do
        @category.topic_count.should == 0
        @topic.category.should == @category
        @category.topic.should == @topic
      end

    end
  end

  describe 'destroy' do
    before do
      @category = Fabricate(:category)
      @category_id = @category.id
      @topic_id = @category.topic_id
      @category.destroy
    end

    it 'is deleted correctly' do
      Category.exists?(id: @category_id).should be_false
      Topic.exists?(id: @topic_id).should be_false
    end
  end

  describe 'update_stats' do
    before do
      @category = Fabricate(:category)
    end

    context 'with regular topics' do
      before do
        @category.topics << Fabricate(:topic, user: @category.user)
        Category.update_stats
        @category.reload
      end

      it 'updates topic stats' do
        @category.topics_week.should == 1
        @category.topics_month.should == 1
        @category.topics_year.should == 1
        @category.topic_count.should == 1
      end

    end

    context 'with deleted topics' do
      before do
        @category.topics << Fabricate(:deleted_topic,
                                      user: @category.user)
        Category.update_stats
        @category.reload
      end

      it 'does not count deleted topics' do
        @category.topics_week.should == 0
        @category.topic_count.should == 0
        @category.topics_month.should == 0
        @category.topics_year.should == 0
      end

    end
  end
end