mongoid-fixture_set

This projects aims to provide fixtures for Mongoid the same way you have them with ActiveRecord.

I am relying on the source of ActiveRecord and Mongoid to create this gem.

Please report any issue you may find.

If you'd like to contribute, but pull requests are welcome!

Install

gem 'mongoid-fixtures'

How to use

In your tests, add:

class ActiveSupport::TestCase
  include Mongoid::FixtureSet::TestHelper
  self.fixture_path = "#{Rails.root}/test/fixtures"
end

This is also done by ActiveRecord, but magically in the railties.

Then when you want to access a fixture:

class UsersControllerTest < ActionController::TestCase
  setup do
    @resource = users(:geoffroy)
  end
  
  test 'should get show' do
    get :show, id: @resource
    assert_response :success
  end
end

Currently working features

Creation of a document from an YAML file.
belongs_to relations
ERB inside YAML files
YAML DEFAULTS feature
Polymorphic belongs_to
has_many relations
has_and_belongs_to_many relations
TestHelper module to include in your tests

Notes

Original fixtures from ActiveRecord also uses a selection based on class_names for which I haven't seen any use case, so I did not port this feature yet.

I did not find how ActiveRecord::TestFixtures defines its fixture_table_names so I'm simply searching for all YAML files under self.fixture_path, which is enough for what I want.

Array attributes are receiving a special treatment, i.e. they are joined with new values, not replaced by the new one. This is used for has_and_belongs_to_many relations.

Documents are stored with a special attribute __fixture_name which is used to retrieve it and establish relations.

Mongoid::Document has an attr_accessor defined for __fixture_name so it doesn't pose any problem if you try to dup a document for example.

Changes compared to ActiveRecord

There is an option to load fixtures only once.
Fixture accessor methods are defined publicly.

This changes are here to let you create another class holding persistent data inside your tests.

class TestData
  include Mongoid::FixtureSet::TestHelper

  self.fixture_path = "#{Rails.root}/test/fixtures_universes"
  self.load_fixtures_once = true

  def TestData.instance
    @instance ||= ->(){
      instance = new
      instance.setup_fixtures
      instance
    }.call
  end

  private_class_method :new
end

class ActiveSupport::TestCase
  include Mongoid::FixtureSet::TestHelper
  self.fixture_path = "#{Rails.root}/test/fixtures"

  def data
    TestData.instance
  end
end

# somewhere else
test 'should validate complex data structure' do
  assert_nothing_raised do
    DataStructure.process(data.structures(:complex))
  end
end

License

This project rocks and uses MIT-LICENSE.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.