Thanks for your attention on pgBadger !
pgBadger has a TAP compatible test suite executed by prove(1) on CI. You can
write tests in many language including perl and bash.
$ apt install bats
...
$ prove
t/basics.t .. ok
t/syntax.t .. ok
All tests successful.
Files=2, Tests=4, 2 wallclock secs ( 0.02 usr 0.00 sys + 2.38 cusr 0.04 csys = 2.44 CPU)
Result: PASS
$
Please contribute a regression test when you fix a bug or add a feature. Thanks!