Devel::Deanonymize

A small tool to make anonymous subs visible to Devel::Coverage (and possibly similar Modules). Code is based on pjcj/Devel--Cover#51 (comment)

Synopsys

# delete old coverage data (optional)
cover -delete

# Perl scripts
perl -MDevel::Cover=-ignore,^t/,Deanonymize -MDevel::Deanonymize=<inculde_pattern> your_script.pl

# Perl tests
HARNESS_PERL_SWITCHES="-MDevel::Cover=-ignore,^t/,Deanonymize -MDevel::Deanonymize=<include_pattern"  prove t/

# generate report
cover -report html

Debugging

If your tests suddenly fail for some weird reason, you can set DEANONYMIZE_DEBUG. If this environment variable is set, we print out the filename for every modified file and write its contents to <filpath/filename>_mod.pl

Coverage Reports

Per default, Devel::Cover creates a folder named cover_db inside the project root. To visualize the result, we have to generate a report:

cover -report html

The html report (or any other report type) is then stored under cover_db as well.

Examples

See separate subdirectory examples/runit.sh

Important notes

• Make sure your script (the one under test) always ends with __END__, __DATA__ or 1;, otherwise the regex to modify it fails silently
• To debug if your script is "deanonymized" use warn() instead of print() print is somewhat unreliable in this early stage
• Devel::Cover on cpan