Man pages matching name test::unixsock in section 3pm:

Test::UNIXSock.3pm.en	debian 10 / libtest-unixsock-perl
Test::UNIXSock.3pm.en	debian 11 / libtest-unixsock-perl
Test::UNIXSock.3pm.en	debian 12 / libtest-unixsock-perl