Author should not validate without last name

[swt2public]

Scenario

When creating an author without last name
Then validation should fail

Hints

What is the correct place to test this behavior, is it a model or a feature test?

You can learn about validations in this guide.

Error

Expected #<author id: nil, first_name: "alan", last_name: nil, homepage: "http://example.com", created_at: nil, updated_at: nil> not to be valid

Estimated progress: 40% complete