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#!perl
use strict;
use warnings;
use File::Map qw/:map lock_map sync/;
use IO::Handle;
use Test::More tests => 9;
use Test::Warnings 0.005 qw/warning/;
use Test::Fatal qw/lives_ok/;
open my $fh, '+<:raw', undef;
my $mmaped;
lives_ok { map_handle $mmaped, $fh } "map succeeded";
ok(defined $mmaped, "mmaped is defined");
cmp_ok(length $mmaped, '==', 0, "length of mmaped is big enough");
ok($mmaped eq "", "mmaped eq \"\"");
is($mmaped, "", "mmaped is \"\"");
lives_ok { sync $mmaped } "can fake syncing empty file";
TODO: {
todo_skip '5.8.7- gives spurious warnings', 2 if $] <= 5.008007;
my $mmaped2;
lives_ok { map_handle $mmaped2, $fh, '>' } "Can't map empty file writably";
like(warning { substr $mmaped2, 0, 0, "1" }, qr/^Can't overwrite an empty map at /, 'Shouldn\'t assign to empty map');
}
foreach my $filename ( 1, 2 ) {
my $input_filename = $0;
map_file my $input, $input_filename, '<';
}
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