1 files changed, 38 insertions, 0 deletions
diff --git a/tests/misc/test-diag.pl b/tests/misc/test-diag.pl
new file mode 100755
index 0000000..d00a4e9
--- /dev/null
+++ b/tests/misc/test-diag.pl
@@ -0,0 +1,38 @@
+#!/usr/bin/perl
+# Test the diagnostics of "test".
+
+# Copyright (C) 2006-2022 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
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+use strict;
+
+(my $program_name = $0) =~ s|.*/||;
+
+# Turn off localization of executable's output.
+@ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;
+
+my @Tests =
+    (
+     # In coreutils-5.93, this diagnostic lacked the newline.
+     ['o', '-o arg', {ERR => "test: '-o': unary operator expected\n"},
+      {ERR_SUBST => 's!^.*test:!test:!'},
+      {EXIT => 2}],
+    );
+
+my $save_temps = $ENV{DEBUG};
+my $verbose = $ENV{VERBOSE};
+my $prog = 'test';
+my $fail = run_tests ($program_name, \$prog, \@Tests, $save_temps, $verbose);
+exit $fail;