Today I Learned

A Hashrocket project

Test that an email was sent with correct params

assert_email_delivered_with is a function that checks if an email was delivered using Bamboo.

Sending an email is a side-effect in functional programming parlance. When testing a function where the email is sent several calls deep, you generally don’t get the email as a return value of that function.

When using Bamboo’s TestAdaptor in test mode, Bamboo captures the delivered email so that you can assert about it.

Lottery.notify_winner()
assert_email_delivered_with(subject: "You Won!!")

You can also assert on: to, cc, text_body, html_body, from, and bcc.

Happy Testing!

Looking for help? Elixir is quickly gaining momentum for web applications that need concurrency, performance, and the ability to connect to many different clients. The developers at Hashrocket are learning along with the rest of the development community that Elixir and Phoenix are viable Rails alternatives for the right application. Check out the source code for Today I Learned, written in Elixir, and contact us if you need help with your Elixir project.