Expand "ls --color" tests to also use the dircolors defaults.

* tests/misc/ls-misc: Adjust this test so each is run twice.  First, as usual,
and the second time with LS_COLORS set using the default settings
produced by running dircolors.
* tests/Coreutils.pm: See below.

This required some changes:
  - save and restore $ENV{LS_COLORS} for each individual test
  that requires a specific value.
  - Since this is the first test to call the run_tests command more
  than once, it has exposed that that function erroneously modifies
  the \@Tests array.  Fix that in tests/Coreutils.pm.

1 files changed, 4 insertions, 2 deletions

diff --git a/tests/Coreutils.pm b/tests/Coreutils.pm
index e506cc810..7a5f8362c 100644
--- a/tests/Coreutils.pm
+++ b/tests/Coreutils.pm
@@ -1,7 +1,7 @@
 package Coreutils;
 # This is a testing framework.
 
-# Copyright (C) 1998, 2000-2002, 2004-2007 Free Software Foundation, Inc.
+# Copyright (C) 1998, 2000-2002, 2004-2008 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -263,9 +263,11 @@ sub run_tests ($$$$$)
 
   my @junk_files;
   my $fail = 0;
-  foreach $t (@$t_spec)
+  foreach my $tt (@$t_spec)
     {
       my @post_compare;
+      my @dummy = @$tt;
+      my $t = \@dummy;
       my $test_name = shift @$t;
       my $expect = {};
       my ($pre, $post);