52 lines
981 B
Perl
52 lines
981 B
Perl
#!./perl
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use strict;
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use warnings;
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use Test::More tests => 7;
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use List::Util qw( reductions );
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is_deeply( [ reductions { } ], [],
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'empty list'
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);
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is_deeply(
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[ reductions { $a + $b } 1 .. 5 ],
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[ 1, 3, 6, 10, 15 ],
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'sum 1..5'
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);
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# We don't guarantee what this will return but it definitely shouldn't crash
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{
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my $ret = reductions { $a + $b } 1 .. 3;
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pass( 'reductions in scalar context does not crash' );
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}
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my $destroyed_count;
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sub Guardian::DESTROY { $destroyed_count++ }
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{
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undef $destroyed_count;
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my @ret = reductions { $b } map { bless [], "Guardian" } 1 .. 5;
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ok( !$destroyed_count, 'nothing destroyed yet' );
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@ret = ();
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is( $destroyed_count, 5, 'all the items were destroyed' );
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}
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{
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undef $destroyed_count;
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ok( !defined eval {
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reductions { die "stop" if $b == 4; bless [], "Guardian" } 1 .. 4;
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1
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}, 'die in BLOCK is propagated'
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);
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is( $destroyed_count, 2, 'intermediate temporaries are destroyed after exception' );
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}
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