Patch Mailer for testing

config/test.exs

@@ -32,3 +32,7 @@ config :recycledcloud, :ldap,
   base_dn: "dc=example,dc=org",
   bind_dn: "cn=admin,dc=example,dc=org",
   bind_pw: "admin"
+
+# Send emails to local memory for testing.
+config :recycledcloud, RecycledCloud.Mailer,
+  adapter: Bamboo.LocalAdapter

lib/recycledcloud/accounts/user_notifier.ex

@@ -3,13 +3,13 @@ defmodule RecycledCloud.Accounts.UserNotifier do
   import Bamboo.Email
 
   defp deliver(to, body) do
-    msg = Mailer.template()
+    _msg = Mailer.template()
     |> to(to)
     |> subject("Recycled Cloud User Management Notification")
     |> text_body(body)
     |> Mailer.deliver_now()
 
-    {:ok, msg}
+    {:ok, %{to: to, body: body}}
   end
 
   @doc """