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#!/usr/bin/perl -w
use strict;
use Test::More;
use File::Temp qw(tempfile);
use IO::Handle;
use File::Spec;
use FindBin qw($Bin);
my ($truncate_status, $tmpfh, $tmpfile);
# Some systems have a screwy tempfile. We don't run our tests there.
eval {
($tmpfh, $tmpfile) = tempfile(UNLINK => 1);
};
if ($@ or !defined $tmpfh) {
plan skip_all => 'tempfile() not happy on this system.';
}
eval {
$truncate_status = truncate($tmpfh, 0);
};
if ($@ || !defined($truncate_status)) {
plan skip_all => 'Truncate not implemented or not working on this system';
}
plan tests => 12;
SKIP: {
my $can_truncate_stdout = truncate(\*STDOUT,0);
if ($can_truncate_stdout) {
skip("This system thinks we can truncate STDOUT. Suuure!", 1);
}
eval {
use autodie;
truncate(\*STDOUT,0);
};
isa_ok($@, 'autodie::exception', "Truncating STDOUT should throw an exception");
}
eval {
use autodie;
no warnings 'once';
truncate(\*FOO, 0);
};
isa_ok($@, 'autodie::exception', "Truncating an unopened file is wrong.");
$tmpfh->print("Hello World");
$tmpfh->flush;
eval {
use autodie;
truncate($tmpfh, 0);
};
is($@, "", "Truncating a normal file should be fine");
$tmpfh->close;
# Time to test truncating via globs.
# Firstly, truncating a closed filehandle should fail.
# I know we tested this above, but we'll do a full dance of
# opening and closing TRUNCATE_FH here.
eval {
use autodie qw(truncate);
truncate(\*TRUNCATE_FH, 0);
};
isa_ok($@, 'autodie::exception', "Truncating unopened file (TRUNCATE_FH)");
# Now open the file. If this throws an exception, there's something
# wrong with our tests, or autodie...
{
use autodie qw(open);
open(TRUNCATE_FH, '+<', $tmpfile);
}
# Now try truncating the filehandle. This should succeed.
eval {
use autodie qw(truncate);
truncate(\*TRUNCATE_FH,0);
};
is($@, "", 'Truncating an opened glob (\*TRUNCATE_FH)');
eval {
use autodie qw(truncate);
truncate(*TRUNCATE_FH,0);
};
is($@, "", 'Truncating an opened glob (*TRUNCATE_FH)');
# Now let's change packages, since globs are package dependent
eval {
package Fatal::Test;
no warnings 'once';
use autodie qw(truncate);
truncate(\*TRUNCATE_FH,0); # Should die, as now unopened
};
isa_ok($@, 'autodie::exception', 'Truncating unopened file in different package (\*TRUNCATE_FH)');
eval {
package Fatal::Test;
no warnings 'once';
use autodie qw(truncate);
truncate(*TRUNCATE_FH,0); # Should die, as now unopened
};
isa_ok($@, 'autodie::exception', 'Truncating unopened file in different package (*TRUNCATE_FH)');
# Now back to our previous test, just to make sure it hasn't changed
# the original file.
eval {
use autodie qw(truncate);
truncate(\*TRUNCATE_FH,0);
};
is($@, "", 'Truncating an opened glob #2 (\*TRUNCATE_FH)');
eval {
use autodie qw(truncate);
truncate(*TRUNCATE_FH,0);
};
is($@, "", 'Truncating an opened glob #2 (*TRUNCATE_FH)');
# Now to close the file and retry.
{
use autodie qw(close);
close(TRUNCATE_FH);
}
eval {
use autodie qw(truncate);
truncate(\*TRUNCATE_FH,0);
};
isa_ok($@, 'autodie::exception', 'Truncating freshly closed glob (\*TRUNCATE_FH)');
eval {
use autodie qw(truncate);
truncate(*TRUNCATE_FH,0);
};
isa_ok($@, 'autodie::exception', 'Truncating freshly closed glob (*TRUNCATE_FH)');
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