new file -- from Eric Blake

diff --git a/tests/misc/dirname b/tests/misc/dirname
new file mode 100755 (executable)
index 0000000..63006ee
--- /dev/null
+++ b/tests/misc/dirname
@@ -0,0 +1,71 @@
+#!/bin/sh
+# -*-perl-*-
+
+: ${PERL=perl}
+: ${srcdir=.}
+
+$PERL -e 1 > /dev/null 2>&1 || {
+  echo 1>&2 "$0: configure didn't find a usable version of Perl," \
+    "so can't run this test"
+  exit 77
+}
+
+d=$srcdir/..
+exec $PERL -w -I$d -MCoreutils -- - << \EOF
+require 5.003;
+use strict;
+use File::stat;
+
+(my $program_name = $0) =~ s|.*/||;
+
+# Turn off localisation of executable's ouput.
+@ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;
+
+my $stat_single = stat('/');
+my $stat_double = stat('//');
+my $double_slash = ($stat_single->dev == $stat_double->dev
+                   && $stat_single->ino == $stat_double->ino) ? '/' : '//';
+
+my $prog = $ENV{PROG} || die "$0: \$PROG not specified in environment\n";
+
+my @Tests =
+    (
+     ['fail-1', {ERR => "$prog: missing operand\n"
+       . "Try `$prog --help' for more information.\n"}, {EXIT => '1'}],
+     ['fail-2', qw(a b), {ERR => "$prog: extra operand `b'\n"
+       . "Try `$prog --help' for more information.\n"}, {EXIT => '1'}],
+
+     ['a', qw(d/f),        {OUT => 'd'}],
+     ['b', qw(/d/f),       {OUT => '/d'}],
+     ['c', qw(d/f/),       {OUT => 'd'}],
+     ['d', qw(d/f//),      {OUT => 'd'}],
+     ['e', qw(f),          {OUT => '.'}],
+     ['f', qw(/),          {OUT => '/'}],
+     ['g', qw(//),         {OUT => "$double_slash"}],
+     ['h', qw(///),        {OUT => '/'}],
+     ['i', qw(//a//),      {OUT => "$double_slash"}],
+     ['j', qw(///a///),    {OUT => '/'}],
+     ['k', qw(///a///b),   {OUT => '///a'}],
+     ['l', qw(///a//b/),   {OUT => '///a'}],
+     ['m', qw(''),         {OUT => '.'}],
+    );
+
+# Append a newline to end of each expected `OUT' string.
+my $t;
+foreach $t (@Tests)
+  {
+    my $arg1 = $t->[1];
+    my $e;
+    foreach $e (@$t)
+      {
+       $e->{OUT} = "$e->{OUT}\n"
+         if ref $e eq 'HASH' and exists $e->{OUT};
+      }
+  }
+
+my $save_temps = $ENV{SAVE_TEMPS};
+my $verbose = $ENV{VERBOSE};
+
+my $fail = run_tests ($program_name, $prog, \@Tests, $save_temps, $verbose);
+exit $fail;
+EOF