RSpec Best Practices - thuy-econsys/rails_app GitHub Wiki

Use let instead of instance variables and before blocks

• Use let and let! | Better Specs - Testing Guidelines for Developers
• When to use RSpec let()?
• RSpec: What is the difference between let and a before block?

Break up large example blocks into smaller tests

preferably single expectations in order to narrow down where your tests are failing

• Single expectation test | Better Specs - Testing Guidelines for Developers

Use factories instead of fixtures

• Use factories and not fixtures | Better Specs - Testing Guidelines for Developers
• Rails Testing Antipatterns: Fixtures and Factories - Semaphore

References

• Better Specs - Testing Guidelines for Developers