[testily] For goodness’ sake, don’t call him Jack under my roof [he throws the book violently down on the table, Then, somewhat relieved, he comes past the table to Octavius, and addresses him at close quarters with impressive gravity].
[testily] It is some young fool who has not enough experience to know what mystifications of this kind lead to.
There are no more uses of "testy" in the book.
Show samples from other sources
She gets a little testy when she hasn’t had enough sleep.
Anybody who comes here ends up getting . . . testy.