sajad torkamani

Install gem

Add to Gemfile:

group :test do
  gem 'shoulda-matchers', '~> 5.0'
end

Run:

./bin/bundle install

Configure with RSpec

Create spec/support/shoulda_matchers.rb:

# frozen_string_literal: true

Shoulda::Matchers.configure do |config|
  config.integrate do |with|
    with.test_framework :rspec
    with.library :rails
  end
end

Make sure this file is included from your rails_helper.rb or spec_helper.rb.

Use in tests

For example, a spec/models/user_spec.rb file might have:

# frozen_string_literal: true

require 'rails_helper'

RSpec.describe User, type: :model do
  describe 'validations' do
    it { should validate_presence_of(:email) }
    it { should validate_presence_of(:password) }
  end
end

Sources

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