sort: add a test case for the sort -u bug

* tests/Makefile.am (TESTS): Add misc/sort-unique.
* tests/misc/sort-unique: New file.

diff --git a/tests/Makefile.am b/tests/Makefile.am
index fccd000..4aa93bf 100644 (file)
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -234,6 +234,7 @@ TESTS =                                             \
   misc/sort-merge-fdlimit                      \
   misc/sort-month                              \
   misc/sort-rand                               \
+  misc/sort-unique                             \
   misc/sort-version                            \
   misc/split-a                                 \
   misc/split-fail                              \

diff --git a/tests/misc/sort-unique b/tests/misc/sort-unique
new file mode 100755 (executable)
index 0000000..e186d34
--- /dev/null
+++ b/tests/misc/sort-unique
@@ -0,0 +1,46 @@
+#!/bin/sh
+# Test 'sort -u'.
+
+# Copyright (C) 2010 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 <http://www.gnu.org/licenses/>.
+
+if test "$VERBOSE" = yes; then
+  set -x
+  sort --version
+fi
+
+. $srcdir/test-lib.sh
+
+cat > in <<\EOF
+1
+2
+1
+3
+EOF
+
+cat > exp <<\EOF
+1
+2
+3
+EOF
+
+for LOC in C "$LOCALE_FR" "$LOCALE_FR_UTF8"; do
+  test -z "$LOC" && continue
+
+  LC_ALL=$LOC sort -u in > out || { fail=1; break; }
+  compare exp out || { fail=1; break; }
+done
+
+Exit $fail