X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/1e2e7acc9e622f0a712d5ea988401aac71ff8c16..5b279f8b9f38ac6332e7ddbcac2b8bf949abe47c:/lib/vmsish.t

diff --git a/lib/vmsish.t b/lib/vmsish.t
index 24e3b04..71ca3b5 100644
--- a/lib/vmsish.t
+++ b/lib/vmsish.t
@@ -112,17 +112,32 @@ is($?,0,"outer lex scope of vmsish [POSIX status]");
     eval "END { \$ENV{'SYS\$TIMEZONE_DIFFERENTIAL'} = $oldtz; }";
     gmtime(0); # Force reset of tz offset
   }
+
+  # Unless we are prepared to parse the timezone rules here and figure out
+  # what the correct offset was when the file was last revised, we need to 
+  # use a file for which the current offset is known to be valid.  That's why
+  # we create a file rather than using an existing one for the stat() test.
+
+  my $file = 'sys$scratch:vmsish_t_flirble.tmp';
+  open TMP, ">$file" or die "Couldn't open file $file";
+  close TMP;
+  END { 1 while unlink $file; }
+
   {
      use_ok('vmsish qw(time)');
+
+     # but that didn't get it in our current scope
+     use vmsish qw(time);
+
      $vmstime   = time;
      @vmslocal  = localtime($vmstime);
      @vmsgmtime = gmtime($vmstime);
-     $vmsmtime  = (stat $0)[9];
+     $vmsmtime  = (stat $file)[9];
   }
   $utctime   = time;
   @utclocal  = localtime($vmstime);
   @utcgmtime = gmtime($vmstime);
-  $utcmtime  = (stat $0)[9];
+  $utcmtime  = (stat $file)[9];
   
   $offset = $ENV{'SYS$TIMEZONE_DIFFERENTIAL'};
 
@@ -130,23 +145,23 @@ is($?,0,"outer lex scope of vmsish [POSIX status]");
   # since it's unlikely local time will differ from UTC by so small
   # an amount, and it renders the test resistant to delays from
   # things like stat() on a file mounted over a slow network link.
-  ok($utctime - $vmstime +$offset <= 10,"(time) UTC:$utctime VMS:$vmstime");
+  ok(abs($utctime - $vmstime + $offset) <= 10,"(time) UTC: $utctime VMS: $vmstime");
 
   $utcval = $utclocal[5] * 31536000 + $utclocal[7] * 86400 +
             $utclocal[2] * 3600     + $utclocal[1] * 60 + $utclocal[0];
   $vmsval = $vmslocal[5] * 31536000 + $vmslocal[7] * 86400 +
             $vmslocal[2] * 3600     + $vmslocal[1] * 60 + $vmslocal[0];
-  ok($vmsval - $utcval + $offset <= 10, "(localtime)");
+  ok(abs($vmsval - $utcval + $offset) <= 10, "(localtime) UTC: $utcval  VMS: $vmsval");
   print "# UTC: @utclocal\n# VMS: @vmslocal\n";
 
   $utcval = $utcgmtime[5] * 31536000 + $utcgmtime[7] * 86400 +
             $utcgmtime[2] * 3600     + $utcgmtime[1] * 60 + $utcgmtime[0];
   $vmsval = $vmsgmtime[5] * 31536000 + $vmsgmtime[7] * 86400 +
             $vmsgmtime[2] * 3600     + $vmsgmtime[1] * 60 + $vmsgmtime[0];
-  ok($vmsval - $utcval + $offset <= 10, "(gmtime)");
+  ok(abs($vmsval - $utcval + $offset) <= 10, "(gmtime) UTC: $utcval  VMS: $vmsval");
   print "# UTC: @utcgmtime\n# VMS: @vmsgmtime\n";
 
-  ok($vmsmtime - $utcmtime + $offset <= 10,"(stat) UTC: $utcmtime  VMS: $vmsmtime");
+  ok(abs($utcmtime - $vmsmtime + $offset) <= 10,"(stat) UTC: $utcmtime  VMS: $vmsmtime");
 }
 }