• Avoid using let and let!

They usually make you shared the thing across multiple tests. Result in convoluted tests and mystery guest.

• Separate testing phases with newlines.

Keep this consistently make your tests much easier to read.

• Use RSpec's expect syntax

• Use describe, context, it

• Prefer not_to over to_not

• Use have_css, have_text with Capybara

• Avoid using shared_examples

Which line it was testing will become hard to tell.

• Use More Ruby, less RSpec