Failures, errors, faults, defects, and bugs...

The Junit test framework TestResult class distinguishes between failures and errors.  The distinction is a failure is anticipated and an error is unanticipated.  I think this is a helpful distinction that can be used in general when describing problems we see when testing software.  Now, just need to do the same with faults, defects, and bugs.

"The test framework distinguishes between failures and errors. A failure is anticipated and checked for with assertions. Errors are unanticipated problems like an ArrayIndexOutOfBoundsException."