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#!/usr/bin/env perl
# The documentation claims:
# If Getopt::Long::Descriptive is installed and any of the following command
# line params are passed (--help, --usage, --?), the program will exit with
# usage information...
# This is not actually true (as of 0.29), as:
# 1. the consuming class must set up a attributes named 'help', 'usage' and
# '?' to contain these command line options, which is not clearly
# documented as a requirement
# 2. the code is checking whether an option was parsed into an attribute
# *called* 'help', 'usage' or '?', not whether the option --help, --usage
# or --? was passed on the command-line (the mapping could be different,
# if cmd_flag or cmd_aliases is used),
# This inconsistency is the underlying cause of RT#52474, RT#57683, RT#47865.
use strict; use warnings;
use Test::More tests => 6;
use Test::Exception;
{
package MyClass;
use strict; use warnings;
use Mouse;
with 'MouseX::Getopt';
}
# before fix, prints this on stderr:
#Unknown option: ?
#usage: test1.t
# after fix, prints this on stderr:
#usage: test1.t [-?] [long options...]
# -? --usage --help Prints this usage information.
foreach my $args ( ['--help'], ['--usage'], ['--?'], ['-?'] )
{
local @ARGV = @$args;
throws_ok { MyClass->new_with_options() }
qr/^usage: (?:[\d\w]+)\Q.t [-?] [long options...]\E.^\s+(\Q-? --\E(\[no-\])?usage )?--(\[no-\])?help(\Q (or -?)\E)?\s+Prints ?(.\s+)?\Qthis usage information.\E.(\s+\Qaka --usage\E.)?$/ms,
'Help request detected; usage information properly printed';
}
# now call again, and ensure we got the usage info.
my $obj = MyClass->new_with_options();
ok($obj->meta->has_attribute('usage'), 'class has usage attribute');
isa_ok($obj->usage, 'Getopt::Long::Descriptive::Usage');
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