Run RSpec tests as a Rake task

RSpec is a testing framework for Ruby. This posts show how to create a rake task that executes rspec tests. RSpec tests will be running using command ‘rake spec’.

Rake task in Rails application

rspec-rails

If you have Rails application you can use gem ‘rspec-rails‘.

After adding to Gemfile and installing it using command

Source code

rails generate rspec:install

our project structure will be like this:

• .rspec
• spec/spec_helper.rb
• spec/rails_helper.rb
• spec/models/*_spec.rb
• spec/features/*_spec.rb

Our tests will be located in folders inside spec/ folder. For examples, spec/features, spec/models, etc.

rake

To run all tests use

Source code

rake spec

or run tests in a specific file:

Source code

rspec spec SPEC=spec/models/mymodel_spec.rb

Rake task without Rails

Init rspec

Source code

rspec --init

Create your tests in spec/ folder.

Rakefile

Rake directives can be located either in “rakefile”, “Rakefile”, “rakefile.rb” or “Rakefile.rb” file.

Rakefile:

Source code

require 'rake'
require 'rspec/core/rake_task'
 
RSpec::Core::RakeTask.new(:spec) do |t|
t.pattern = Dir.glob('spec/**/*_spec.rb')
t.rspec_opts = '--format documentation'
# t.rspec_opts << ' more options'
t.rcov = true
end
task :default => :spec

Now we can run all tests located in spec/ folder:

Source code

rake spec

Run tests in a specific file:

Source code

rake spec SPEC=spec/features/myfeature_spec.rb

Links

rake tasks for RSpec:

– https://www.relishapp.com/rspec/rspec-core/docs/command-line/rake-task