~ubuntu-branches/ubuntu/utopic/ruby-database-cleaner/utopic-proposed

require File.dirname(__FILE__) + '/../../spec_helper'

require 'mongo'

require 'database_cleaner/mongo/truncation'

require File.dirname(__FILE__) + '/mongo_examples'

 

module DatabaseCleaner

  module Mongo

 

    describe Truncation do

      let(:args) {{}}

      let(:truncation) { described_class.new(args).tap { |t| t.db=@db } }

      #doing this in the file root breaks autospec, doing it before(:all) just fails the specs

      before(:all) do

        @connection = ::Mongo::Connection.new('127.0.0.1')

        @test_db = 'database_cleaner_specs'

        @db = @connection.db(@test_db)

      end

 

      after(:each) do

        @connection.drop_database(@test_db)

      end

 

      def ensure_counts(expected_counts)

        # I had to add this sanity_check garbage because I was getting non-determinisc results from mongo at times..

        # very odd and disconcerting...

        expected_counts.each do |model_class, expected_count|

          model_class.count.should equal(expected_count), "#{model_class} expected to have a count of #{expected_count} but was #{model_class.count}"

        end

      end

 

      def create_widget(attrs={})

        MongoTest::Widget.new({:name => 'some widget'}.merge(attrs)).save!

      end

 

      def create_gadget(attrs={})

        MongoTest::Gadget.new({:name => 'some gadget'}.merge(attrs)).save!

      end

 

      it "truncates all collections by default" do

        create_widget

        create_gadget

        ensure_counts(MongoTest::Widget => 1, MongoTest::Gadget => 1)

        truncation.clean

        ensure_counts(MongoTest::Widget => 0, MongoTest::Gadget => 0)

      end

 

      context "when collections are provided to the :only option" do

        let(:args) {{:only => ['MongoTest::Widget']}}

        it "only truncates the specified collections" do

          create_widget

          create_gadget

          ensure_counts(MongoTest::Widget => 1, MongoTest::Gadget => 1)

          truncation.clean

          ensure_counts(MongoTest::Widget => 0, MongoTest::Gadget => 1)

        end

      end

 

      context "when collections are provided to the :except option" do

        let(:args) {{:except => ['MongoTest::Widget']}}

        it "truncates all but the specified collections" do

          create_widget

          create_gadget

          ensure_counts(MongoTest::Widget => 1, MongoTest::Gadget => 1)

          truncation.clean

          ensure_counts(MongoTest::Widget => 1, MongoTest::Gadget => 0)

        end

      end

 

    end

 

  end

end