show-package-summary (name test-count pass-count &optional error-count)

name -- a symbol
test-count -- a number
pass-count -- a number
error-count -- a number

A test listener which prints the summaries at only the package level.

name ist a test or a package just finished. The other arguments test-count, pass-count, and error-count count the number of assertions evaluated, the tests that passed, and the errors that occured respectively