Add some test codes to existing Rails project (rspec)

We need an expert who is who can add rspec test codes to existing Rails project. The application is for engineers who is seeking jobs, just like a freelancer.com ## Model Mainly, we have 7 models. * User ( which has 2 type of user [ "company", "user" ] ) * UserProfile ( user has_one user_profile) * CompanyProfile * Project ( user has_many projects) * Work ( user has_many works) * ProjectApplicant ( middle model which connects user and project.) * Favorite (way to bookmark projects ) ## Requirement * Write successful test code examples for those 7 models and each [login to view URL] than 70% coverage. * Who have experience of RSpec * Who is good at communicate in English * Complete job within 1 day ## Version Ruby 2.4.0 Rails 5.0.1