Cassandane::Failure
NAME
Cassandane::Failure - the exception meaning "this test failed"
DESCRIPTION
This is the thing you throw when your test fails. There's a distinction in Cassandane between "I asserted that this property would hold, and it didn't" and "a totally unexpected error occurred, like the disk filled".
The first one should be a Cassandane::Failure. The other one is basically any other thrown exception.