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use strict;
BEGIN {
require Time::HiRes;
unless(&Time::HiRes::d_hires_stat) {
require Test::More;
Test::More::plan(skip_all => "no hi-res stat");
}
if($^O =~ /\A(?:cygwin|MSWin)/) {
require Test::More;
Test::More::plan(skip_all =>
"$^O file timestamps not reliable enough for stat test");
}
}
use Test::More tests => 43;
BEGIN { push @INC, '.' }
use t::Watchdog;
my @atime;
my @mtime;
for (1..5) {
Time::HiRes::sleep(rand(0.1) + 0.1);
open(X, '>', $$);
print X $$;
close(X);
my($a, $stat, $b) = ("a", [Time::HiRes::stat($$)], "b");
is $a, "a";
is $b, "b";
is ref($stat), "ARRAY";
push @mtime, $stat->[9];
($a, my $lstat, $b) = ("a", [Time::HiRes::lstat($$)], "b");
is $a, "a";
is $b, "b";
is_deeply $lstat, $stat;
Time::HiRes::sleep(rand(0.1) + 0.1);
open(X, '<', $$);
<X>;
close(X);
$stat = [Time::HiRes::stat($$)];
push @atime, $stat->[8];
$lstat = [Time::HiRes::lstat($$)];
is_deeply $lstat, $stat;
}
1 while unlink $$;
print("# mtime = @mtime\n");
print("# atime = @atime\n");
my $ai = 0;
my $mi = 0;
my $ss = 0;
for (my $i = 1; $i < @atime; $i++) {
if ($atime[$i] >= $atime[$i-1]) {
$ai++;
}
if ($atime[$i] > int($atime[$i])) {
$ss++;
}
}
for (my $i = 1; $i < @mtime; $i++) {
if ($mtime[$i] >= $mtime[$i-1]) {
$mi++;
}
if ($mtime[$i] > int($mtime[$i])) {
$ss++;
}
}
print("# ai = $ai, mi = $mi, ss = $ss\n");
# Need at least 75% of monotonical increase and
# 20% of subsecond results. Yes, this is guessing.
SKIP: {
skip "no subsecond timestamps detected", 1 if $ss == 0;
ok $mi/(@mtime-1) >= 0.75 && $ai/(@atime-1) >= 0.75 &&
$ss/(@mtime+@atime) >= 0.2;
}
my $targetname = "tgt$$";
my $linkname = "link$$";
SKIP: {
open(X, '>', $targetname);
print X $$;
close(X);
eval { symlink $targetname, $linkname or die "can't symlink: $!"; };
skip "can't symlink", 7 if $@ ne "";
my @tgt_stat = Time::HiRes::stat($targetname);
my @tgt_lstat = Time::HiRes::lstat($targetname);
my @lnk_stat = Time::HiRes::stat($linkname);
my @lnk_lstat = Time::HiRes::lstat($linkname);
is scalar(@tgt_stat), 13;
is scalar(@tgt_lstat), 13;
is scalar(@lnk_stat), 13;
is scalar(@lnk_lstat), 13;
is_deeply \@tgt_stat, \@tgt_lstat;
is_deeply \@tgt_stat, \@lnk_stat;
isnt $lnk_lstat[2], $tgt_stat[2];
}
1 while unlink $linkname;
1 while unlink $targetname;
1;
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