We should be able to check what emails are sent in the test suite

[np]

So far sending emails in test mode amounts to setting sendmail_path to the command cat.

This seems to provide no convenient way to check the contents of the emails being sent.

[fisx]

The workaround would be to set the log path in Thentos.Test.Config to /tmp/my-log.

A slightly better (and easy to implement) way: Set log path to something inside the temp dir created for this test. Provide a helper function that reads that dir.

A cool way: Write a logger that logs to Chan instead of to the file system or stdout. Provide helpers to read that Chan.