Rails 3 and assert_emails
by Trevor Turk
While upgrading an app to Rails 3… I ran across a problem because they’ve removed the assert_emails method.
The error, for you Googlers out there:
NoMethodError: undefined method assert_emails
Fixing the problem is simple:
http://gist.github.com/591040?file=gistfile1.rb
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THANK YOU
rspec version:
lambda{
# code you are testing
}.should change(ActionMailer::Base.deliveries, :size).by(1)