MailerMatcher

Add this line to your application's Gemfile:

gem 'rspec-mailer_matcher'

And then execute:

$ bundle

Or install it yourself as:

$ gem install rspec-mailer_matcher

First of all, add the following line to your spec_helper.rb or rails_helper.rb:

require 'rspec-mailer_matcher'

Then, you can use deliver matcher:

it {
  expect { _any_action_ }.to deliver to: 'to@example.org', from: 'from@example.org', subject: 'Hello world'
}

or using subject block:

subject {
  proc { _any_action_ }
}

it {
  is_expected.to deliver to: 'to@example.org', from: 'from@example.org', subject: 'Hello world'
}

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/d-mato/rspec-mailer_matcher.

The gem is available as open source under the terms of the MIT License.