Contents

require 'spec_helper'

RSpec.describe 'deferred has-many association' do

  before(:each) do
    Person.create!(name: 'Alice')
    Person.create!(name: 'Bob')

    Issue.create!(subject: 'Printer PRT-001 jammed')
    Issue.create!(subject: 'Database server DB-1337 down')
    Issue.create!(subject: 'Make me a sandwich!')
  end

  let(:printer_issue) { Issue.where(subject: 'Printer PRT-001 jammed').first }
  let(:db_issue) { Issue.where(subject: 'Database server DB-1337 down').first }
  let(:sandwich_issue) { Issue.where(subject: 'Make me a sandwich!').first }

  describe 'preloading associations' do
    before do
      p = Person.find(1)
      p.issues << printer_issue << db_issue
      p.save!
    end

    if rails30 # old-style preload
      it 'should have loaded the association' do
        p = Person.find(1)
        Person.send(:preload_associations, p, [:issues])
        expect(p.issues.loaded?).to be_truthy
        expect(p.issue_ids).to eq [printer_issue.id, db_issue.id]
      end
    end

    if rails32 || rails4
      it 'should have loaded the association when pre-loading' do
        people = Person.preload(:issues)
        expect(people[0].issues.loaded?).to be_truthy
        expect(people[0].issue_ids).to eq [printer_issue.id, db_issue.id]
      end

      it 'should have loaded the association when eager loading' do
        people = Person.eager_load(:issues)
        expect(people[0].issues.loaded?).to be_truthy
        expect(people[0].issue_ids).to eq [db_issue.id, printer_issue.id]
      end

      it 'should have loaded the association when joining' do
        people = Person.includes(:issues).all
        expect(people[0].issues.loaded?).to be_truthy
        expect(people[0].issue_ids).to eq [printer_issue.id, db_issue.id]
      end
    end

    it 'should not have loaded the association when using a regular query' do
      people = Person.all
      expect(people[0].issues.loaded?).to be_falsey
    end
  end

end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
deferring-0.0.4	spec/lib/deferring_has_many_spec.rb
deferring-0.0.3	spec/lib/deferring_has_many_spec.rb
deferring-0.0.2	spec/lib/deferring_has_many_spec.rb