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#!/usr/bin/perl
use strict;
use warnings;
use Test::More tests => 9;
use Moose::Autobox;
my $array = [ qw(1 2 3 4 ) ];
is_deeply(
[ $array->flatten ],
[ 1, 2, 3, 4 ],
"flattening an array returns a list",
);
my $hash = { a => 1, b => 2 };
is_deeply(
[ sort $hash->flatten ],
[ qw(1 2 a b) ],
"flattening a hash returns a list",
);
my $scalar = 1;
is_deeply(
[ $scalar->flatten ],
[ 1 ],
"flattening a scalar returns the scalar",
);
my $scalar_ref = \$scalar;
is_deeply(
[ $scalar_ref->flatten ],
[ \$scalar ],
"flattening a reference to a scalar returns the same scalar reference",
);
# flatten_deep on array
is_deeply(
[ 1 .. 9 ]->flatten_deep,
[ 1 .. 9 ],
"default flatten_deep on shallow array returns correct array"
);
is_deeply(
[ [ 1 .. 3 ], [[ 4 .. 6 ]], [[[ 7 .. 9 ]]] ]->flatten_deep,
[ 1 .. 9 ],
"default flatten_deep on array with depth completely flattens array"
);
is_deeply(
[ [ 1 .. 3 ], [[ 4 .. 6 ]], [[[ 7 .. 9 ]]] ]->flatten_deep(undef),
[ 1 .. 9 ],
"flatten_deep with an undef argument on array with depth completely flattens array"
);
is_deeply(
[ [ 1 .. 3 ], [[ 4 .. 6 ]], [[[ 7 .. 9 ]]] ]->flatten_deep(0),
[ [ 1 .. 3 ], [[ 4 .. 6 ]], [[[ 7 .. 9 ]]] ],
"flatten_deep with depth 0 specified on array returns array unchanged"
);
is_deeply(
[ [ 1 .. 3 ], [[ 4 .. 6 ]], [[[ 7 .. 9 ]]] ]->flatten_deep(2),
[ 1 .. 6, [ 7 .. 9 ] ],
"flatten_deep with depth specified returns correct array"
);
|
