forked from openkylin/libsub-uplevel-perl
34 lines
720 B
Perl
34 lines
720 B
Perl
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#!/usr/bin/perl
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use strict;
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BEGIN { $^W = 1 }
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use Test::More tests => 5;
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BEGIN {
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$Sub::Uplevel::CHECK_FRAMES = 1;
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use_ok('Sub::Uplevel');
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}
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sub show_caller {
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return scalar caller;
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}
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sub wrap_show_caller {
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my $uplevel = shift;
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return uplevel $uplevel, \&show_caller;
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}
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my $warning = '';
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local $SIG{__WARN__} = sub { $warning = shift };
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my $caller = wrap_show_caller(1);
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is($caller, 'main', "wrapper returned correct caller");
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is( $warning, '', "don't warn if ordinary uplevel" );
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$warning = '';
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$caller = wrap_show_caller(2);
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my $file = __FILE__;
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is($caller, undef, "wrapper returned correct caller");
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like( $warning, qr/uplevel 2 is more than the caller stack/, "warn if too much uplevel" );
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