tests: remove ugly /bin/sh wrapper around each perl-based test script

* tests/check.mk (TESTS_ENVIRONMENT): Save and restore TMPDIR around
envvar-check, so that the few scripts that require $TMPDIR don't fail.
This is also good to let a user's default TMPDIR setting be used e.g.,
in the search for an 'other-partition'.
FIXME: this is pretty ugly.  maybe undo it and find a better way.
(TESTS_ENVIRONMENT): Invoke perl scripts with $(PERL), and use -T
if the script requires that.  Otherwise, use $(SHELL).

* tests/misc/md5sum-newline: Create a file whose name contains
a newline in Perl (resort to using "system", since open refuses).

Fix old brokenness exposed by this change:
* tests/du/files0-from: Correct test not to rely on stdin
being attached to a non-tty.
* tests/misc/sort (3g, 3h, 3i): Likewise: add explicit empty input file.
Avoid warnings about using qw()-around-commas.

* tests/rm/fail-eperm: Now that this test is run from a temporary
subdirectory, adjust the full name of the "rm" program we're going
to run.

Change #!/bin/sh to #!/usr/bin/perl, and factor out the few lines
of boilerplate code to invoke perl.  Do not "require 5.00x";
a configure-time Perl test handles that
* tests/dd/skip-seek:
* tests/misc/base64:
* tests/misc/basename:
* tests/misc/cut:
* tests/misc/date:
* tests/misc/dircolors:
* tests/misc/dirname:
* tests/misc/expand:
* tests/misc/expr:
* tests/misc/factor:
* tests/misc/fmt:
* tests/misc/fold:
* tests/misc/head:
* tests/misc/head-elide-tail:
* tests/misc/join:
* tests/misc/ls-misc:
* tests/misc/md5sum:
* tests/misc/md5sum-newline:
* tests/misc/mktemp:
* tests/misc/od:
* tests/misc/paste:
* tests/misc/pr:
* tests/misc/printf-cov:
* tests/misc/seq:
* tests/misc/sha1sum:
* tests/misc/sha1sum-vec:
* tests/misc/sha224sum:
* tests/misc/sha256sum:
* tests/misc/sha384sum:
* tests/misc/sha512sum:
* tests/misc/sort-merge:
* tests/misc/stat-printf:
* tests/misc/sum:
* tests/misc/tac:
* tests/misc/tail:
* tests/misc/test:
* tests/misc/test-diag:
* tests/misc/tr:
* tests/misc/tsort:
* tests/misc/tty-eof:
* tests/misc/unexpand:
* tests/misc/uniq:
* tests/misc/wc:
* tests/misc/wc-files0-from:
* tests/misc/xstrtol:
* tests/mv/i-1:
* tests/pr/pr-tests:
* tests/rm/empty-name:
* tests/rm/fail-eperm:
* tests/rm/unreadable:

1 files changed, 8 insertions, 13 deletions

diff --git a/tests/misc/uniq b/tests/misc/uniq
index 1c85735a2..0350864c0 100755
--- a/tests/misc/uniq
+++ b/tests/misc/uniq
@@ -1,5 +1,5 @@
-#!/bin/sh
-# Test for a subtle, system-and-locale-dependent bug in uniq.
+#!/usr/bin/perl
+# Test uniq.
 
 # Copyright (C) 2008 Free Software Foundation, Inc.
 
@@ -16,16 +16,6 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-case $LOCALE_FR in
-''|none) echo "$0: skipping this test -- no appropriate locale" 1>&2; exit 77;;
-esac
-
-: ${srcdir=.}
-. $top_srcdir/tests/require-perl
-
-me=`echo $0|sed 's,.*/,,'`
-exec $PERL -w -I$top_srcdir/tests -MCoreutils -M"CuTmpdir qw($me)" -- - <<\EOF
-require 5.003;
 use strict;
 
 my $prog = 'uniq';
@@ -90,6 +80,11 @@ sub add_z_variants($)
 
 # I've only ever triggered the problem in a non-C locale.
 my $locale = $ENV{LOCALE_FR};
+if (! defined $locale || $locale eq 'none')
+  {
+    warn "$prog: skipping this test -- no appropriate locale\n";
+    exit 77;
+  }
 
 # See if isblank returns true for nbsp.
 my $x = `env printf '\xa0'| LC_ALL=$locale tr '[:blank:]' x`;
@@ -100,6 +95,7 @@ my $schar_exp = $x eq 'x' ? " y z\n" : $in;
 
 my @Tests =
 (
+  # Test for a subtle, system-and-locale-dependent bug in uniq.
  ['schar', '-f1',  {IN => $in}, {OUT => $schar_exp},
   {ENV => "LC_ALL=$locale"}],
  ['1', '', {IN=>''}, {OUT=>''}],
@@ -217,4 +213,3 @@ my $verbose = $ENV{VERBOSE};
 
 my $fail = run_tests ($prog, $prog, \@Tests, $save_temps, $verbose);
 exit $fail;
-EOF