Provided by: debhelper_11.1.6ubuntu2_all 

NAME
dh_testroot - ensure that a package is built with necessary level of root permissions
SYNOPSIS
dh_testroot [debhelper options]
DESCRIPTION
dh_testroot is used to determine if the package has access to at least the level of root access that it
declared it needed via the Rules-Requires-Root (R³) field.
The following is how dh_testroot behaves based on the effective value of the R³ field:
"binary-targets"
dh_testroot asserts that it is run as root or under fakeroot(1).
"no"
dh_testroot returns successfully.
Any other value than the above
dh_testroot asserts that it is either run as root (or under fakeroot(1)) or the builder has provided
the DEB_GAIN_ROOT_CMD environment variable (e.g. via dpkg-buildpackage -r).
For backwards compatibility, dh_testroot will consider the absence of the R³ field as if the R³ field was
set to "binary-targets".
SEE ALSO
debhelper(7)
This program is a part of debhelper.
AUTHOR
Joey Hess <joeyh@debian.org>
11.1.6ubuntu2 2018-05-10 DH_TESTROOT(1)