FM / t

/usr/share/doc/perl-Sub-Exporter/t

Name	Size	Mode	Actions
lib/	-	0755	rm
00-compile.t	987	0644	edit dl rm
000-report-versions-tiny.t	2620	0644	edit dl rm
col-init.t	1153	0644	edit dl rm
collection.t	2902	0644	edit dl rm
expand-group.t	5400	0644	edit dl rm
faux-export.t	3044	0644	edit dl rm
gen-callable.t	574	0644	edit dl rm
group-generator.t	3774	0644	edit dl rm
inherited.t	613	0644	edit dl rm
into-level.t	3130	0644	edit dl rm
real-export-groupgen.t	1902	0644	edit dl rm
real-export-href.t	4223	0644	edit dl rm
real-export-setup.t	3683	0644	edit dl rm
util-curry.t	1735	0644	edit dl rm
util-currychain.t	1718	0644	edit dl rm
util-like.t	3104	0644	edit dl rm
util-merge.t	1752	0644	edit dl rm
util-mixin.t	2795	0644	edit dl rm
util-namemap.t	568	0644	edit dl rm
valid-config.t	1305	0644	edit dl rm

Edit: /usr/share/doc/perl-Sub-Exporter/t/util-currychain.t (1718B)

#!/usr/bin/perl -T
use strict;
use warnings;

use Test::More tests => 4;

BEGIN { use_ok("Sub::Exporter::Util", qw(curry_chain)); }

# So, some packages that we'll chain methods through.
{
  package Test::CurryChain::Head;
  sub new          { my ($class, @arg) = @_; bless [ @arg ] => $class; }
  sub next_obj     { shift; return Test::CurryChain::Tail->new(@_); }
  sub false        { return; }
  sub non_invocant { return 1; }

package Test::CurryChain::Tail;
  sub new      { my ($class, @arg) = @_; bless [ @arg ] => $class; }
  sub rev_guts { return reverse @{shift()}; }
}

{
  # Then the generator which could be put into a Sub::Exporter -setup.
  # This is an optlist.  AREF = args; undef = no args; CODE = args generator
  my $generator = curry_chain(
    next_obj => [ 1, 2, 3 ],
    rev_guts => undef,
  );

my $curried_sub = $generator->('Test::CurryChain::Head');
  my @result = $curried_sub->();
  is_deeply(
    \@result,
    [ 3, 2, 1],
    "simple curried chain behaves as expected"
  );
}

{
  # This one will fail, beacuse the second call returns false.
  my $generator = curry_chain(
    new       => [ 1, 2, 3 ],
    false     => undef,
    will_fail => undef,
  );

my $curried_sub = $generator->('Test::CurryChain::Head');

eval { $curried_sub->() };

like($@, qr/can't call will_fail/, "exception on broken chain");
}

{
  # This one will fail, beacuse the second call returns a true non-invocant.
  my $generator = curry_chain(
    new          => [ 1, 2, 3 ],
    non_invocant => undef,
    will_fail    => undef,
  );

my $curried_sub = $generator->('Test::CurryChain::Head');

eval { $curried_sub->() };

like($@, qr/can't call will_fail/, "exception on broken chain");
}

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