Rspec model tests only comes with one line: 'pending "add some examples to (or delete) #{__FILE__}"'. This gem seeks to populate the model spec with basic tests like validations, relationships, etc..., and then some.

gem install spec_writer -v 0.1.0


SpecWriter Gem Version

We know you don't do TDD 😛 but what about DDT? 😄

We can help you DDT so you can TDD.

SpecWriter is a tool aimed to help in promoting the art of TDD, by first helping to compile the most basic tests ( supporting only model tests for now ) for your new rails application, so you can continue on the testing path as you progress in the development process.


Add this line to your application's Gemfile:

gem 'spec_writer', group: development

And then execute:

$ bundle

Or install it yourself as:

$ gem install spec_writer


The usage of this gem depends on the use of the following tools/frameworks:

  1. Rails
  2. Rspec-rails ( the testing framework for rails > 3.0 )
  3. Factory-Girls

Others that might be useful, but not entirely compulsory includes:

  • Database cleaner
  • Faker


In a rails application, set up the rspec testing, with factories in the spec/factories directory...

Next, to have SpecWriter compile model test for a model, simply run:

$ rails generate model_spec MODEL

generating for User model, for example, will be:

$ rails generate model_spec User

This will generate a spec file in the spec/models/<model>_spec.rb and populate with some good basic tests.

running rspec here might show some failing tests due to absence of required factory, either create those factories, or fix test as appropriate.

Tests covered are:

  • Validation tests
  • Association tests
  • Graceful destroyals for associated models ( This is usually useful to identify where the dependent: destroy option has been omited so as to avoid the common update or delete on table "<table>" violates foreign key constraint error on a resource.)


After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.


Bug reports and pull requests are welcome on GitHub at https://github.com/SundayAdefila/spec_writer.


The gem is available as open source under the terms of the MIT License.