dh_testdir - test directory before building Debian package

       Joey Hess <joeyh@debian.org>

13.24.1ubuntu2                                     2025-02-11                                      DH_TESTDIR(1)

dh_testdir tries to make sure that you are in the correct directory when building a Debian package. It
       makes sure that the file debian/control exists, as well as any other files you specify. If not, it exits
       with an error.

       dh_testdir - test directory before building Debian package

file ...
           Test for the existence of these files too.

debhelper(7)

       This program is a part of debhelper.

dh_testdir [debhelperoptions] [file ...]