Posted 7 months ago. Visible to the public.

RSpec: How to check if a string contains terms in a desired order

There seems to be no built-in matcher in RSpec to check if a string contains terms in the desired order. A simple workaround is to use a regular expression that also matches newlines (m-modifier).

Cons:

  • The readability when terms need to be escaped is bad
  • A failed spec has an error which needs manually action to be understood (Search if terms appear and in which order)

Example:

Copy
expect(ActionMailer::Base.last.to_s).to match(/Dear customer.*Account canceled.*You Awesome Company/m)

By refactoring problematic code and creating automated tests, makandra can vastly improve the maintainability of your Rails application.

Owner of this card:

Avatar
Emanuel De
Last edit:
7 months ago
by Emanuel De
About this deck:
We are makandra and do test-driven, agile Ruby on Rails software development.
License for source code
Posted by Emanuel De to makandra dev
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