App::Yath::Util - General utilities for yath that do not fit anywhere else.


This package exports several tools used throughout yath that did not fit into any other package.


    use App::Yath::Util qw{


Note that nothing is exported by default, you must request each function to import.

$path_to_pfile = find_pfile($settings, %params)

The first argument must be an instance of Test2::Harness::Settings.

Currently the only supported param is vivify, when set to true the pfile will be created if one does not already exist.

The pfile is a file that tells yath that a persistent runner is active, and how to communicate with it.

$path_to_file = find_in_updir($file_name)

Look for $file_name in the current directory or any parent directory.

$bool = is_generated_test_pl($path_to_test_file)

Check if the specified test file was generated by the yath init command.

fit_to_width($width, $join, $text)

This will split the $text on space, and then recombine it using $join inserting newlines as necessary in an attempt to fit the text into $width horizontal characters. If any words are larger than $width they will not be split and text-wrapping may occur if used for terminal display.

$stdout = isolate_stdout()

This will close STDOUT and reopen it to point at STDERR. The result of this is that any print statement that does not specify a fielhandle will print to STDERR instead of STDOUT, in addition any print directly to STDOUT will instead go to STDERR. A filehandle to the real STDOUT is returned for you to use when you actually want to write to STDOUT.

This is used by some yath processes that need to print structured data to STDOUT without letting any third part modules they may load write to the real STDOUT.

$path_to_script = find_yath()

This will attempt to find the yath command line script. When possible this will return the path that was used to launch yath. If yath was not run to start the process it will search the paths specified in the Config module. This will throw an exception if the script cannot be found.

Note: The result is cached so that subsequent calls will return the same path even if something installs a new yath script in another location that would otherwise be found first. This guarentees that a single process will not switch scripts.


The source code repository for Test2-Harness can be found at


Chad Granum <>


Chad Granum <>


Copyright 2020 Chad Granum <>.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.