Here are some tips to test this module without building debian package:

* test all:

  prove -l t/
  perl -Ilib t/*.t

* single test

  prove -l t/debian-dpkg.t
  perl -Ilib t/debian-dpkg.t

* pick test case for t/model_test.t

model_test can be quite long to execute as it runs several test cases
(in fact one for every example file located in t/model_test.d/*-examples)

Syntax is:

  perl -Ilib t/model_test.t <flag> <group> <example>

flag can be:
- t: add more verbose trace on STDOUT
- l: print logs configured in ~/.log4config-model
- e: print stack trace when exceptions are thrown

To find group and example, run 
  perl -Ilib t/model_tests.t |grep 'Beginning subtest'

Each subtest name can be used as group and example (example can be a pattern).

For instance:

$ perl -Ilib t/model_tests.t x dpkg-copyright oar   
ok 1 - compiled
# Beginning dpkg-copyright test (t/model_tests.d/dpkg-copyright-test-conf.pl)
# dpkg-copyright uses Dpkg::Copyright model on file copyright
# Beginning subtest dpkg-copyright oar
ok 2 - Copied dpkg-copyright example oar
not ok 3 - Read configuration and created instance with init() method with warning check 
#   Failed test 'Read configuration and created instance with init() method with warning check '
#   at /usr/share/perl5/Config/Model/Tester.pm line 156.
# found warning: Warning in 'Format' value 'http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/': Format does not match the recommended URL for DEP-5
# found warning: Warning in 'Files:"sources/extra/orpheus/modules/lua-signal/lsignal.c" License short_name' value 'MIT': There are many versions of the MIT license. Please use Expat instead, when it matches. See L<Debian copyright format|https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/#license-specification> and L<wikipedia|https://en.wikipedia.org/wiki/MIT_License#Various_versions>for details.
# expected to find warning: (?^:use Expat)
ok 4 - Ran dump_tree (no warning check)
ok 5 - Dumped dpkg-copyright config tree in full mode
ok 6 - Dumped dpkg-copyright config tree in custom mode
ok 7 - first check 'Files:"sources/extra/orpheus/modules/lua-signal/lsignal.c" License short_name' value
ok 8 - dpkg-copyright write back done
ok 9 - Created instance dpkg-copyright-test-oar-w
ok 10 - Dumped second dpkg-copyright config tree in custom mode
ok 11 - compare original dpkg-copyright custom data with 2nd instance custom data
ok 12 - check that original dpkg-copyright file was not clobbered
# End of subtest dpkg-copyright oar
# Beginning subtest dpkg-copyright moarvm-from-scratch
# starting test without original config data, i.e. from scratch
ok 13 - Copied dpkg-copyright example moarvm-from-scratch
ok 14 - Read configuration and created instance with init() method without warning check
# updating config with in t/scanner/examples/moarvm.in quiet 1
ok 15 - updated configuration
ok 16 - Ran dump_tree (no warning check)
ok 17 - Dumped dpkg-copyright config tree in full mode
ok 18 - Dumped dpkg-copyright config tree in custom mode
ok 19 - first check 'License:BSD-2-clause text' value with regexp
ok 20 - first check 'License:ISC text' value with regexp
ok 21 - dpkg-copyright write back done
ok 22 - check that debian/copyright does not match regexp (?^:\n\nLicense: BSD-2-clause\n\n)
ok 23 - Created instance dpkg-copyright-test-moarvm-from-scratch-w
ok 24 - Dumped second dpkg-copyright config tree in custom mode
ok 25 - compare original dpkg-copyright custom data with 2nd instance custom data
ok 26 - check that original dpkg-copyright file was not clobbered
ok 27 - second check 'Files:"3rdparty/dyncall/*" License full_license' value
# End of subtest dpkg-copyright moarvm-from-scratch
# End of dpkg-copyright test
ok 28 - test memory cycle
1..28
# Looks like you failed 1 test of 28.

The 'x' flag is ignored. The above command runs 2 subtests that match
'oar': 'oar' and 'moarvm'.

A pattern must be used to run only 'oar' subtest':

$ perl -Ilib t/model_tests.t x dpkg-copyright '\boar\b'
ok 1 - compiled
# Beginning dpkg-copyright test (t/model_tests.d/dpkg-copyright-test-conf.pl)
# dpkg-copyright uses Dpkg::Copyright model on file copyright
# Beginning subtest dpkg-copyright oar
ok 2 - Copied dpkg-copyright example oar
not ok 3 - Read configuration and created instance with init() method with warning check 
#   Failed test 'Read configuration and created instance with init() method with warning check '
#   at /usr/share/perl5/Config/Model/Tester.pm line 156.
# found warning: Warning in 'Format' value 'http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/': Format does not match the recommended URL for DEP-5
# found warning: Warning in 'Files:"sources/extra/orpheus/modules/lua-signal/lsignal.c" License short_name' value 'MIT': There are many versions of the MIT license. Please use Expat instead, when it matches. See L<Debian copyright format|https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/#license-specification> and L<wikipedia|https://en.wikipedia.org/wiki/MIT_License#Various_versions>for details.
# expected to find warning: (?^:use Expat)
ok 4 - Ran dump_tree (no warning check)
ok 5 - Dumped dpkg-copyright config tree in full mode
ok 6 - Dumped dpkg-copyright config tree in custom mode
ok 7 - first check 'Files:"sources/extra/orpheus/modules/lua-signal/lsignal.c" License short_name' value
ok 8 - dpkg-copyright write back done
ok 9 - Created instance dpkg-copyright-test-oar-w
ok 10 - Dumped second dpkg-copyright config tree in custom mode
ok 11 - compare original dpkg-copyright custom data with 2nd instance custom data
ok 12 - check that original dpkg-copyright file was not clobbered
# End of subtest dpkg-copyright oar
# End of dpkg-copyright test
ok 13 - test memory cycle
1..13
# Looks like you failed 1 test of 13.


You can run a whole group by omitting the subtest name:

 $ perl -Ilib t/model_tests.t x dpkg-control


