1 files changed, 60 insertions, 0 deletions
diff --git a/tests/wc/wc-total.sh b/tests/wc/wc-total.sh
new file mode 100755
index 0000000..113b355
--- /dev/null
+++ b/tests/wc/wc-total.sh
@@ -0,0 +1,60 @@
+#!/bin/sh
+# Show that wc's --total option works.
+
+# Copyright (C) 2022-2023 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/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ wc
+require_sparse_support_ # for 'truncate --size=$BIG'
+getlimits_
+
+printf '%s\n' '2' > 2b || framework_failure_
+printf '%s\n' '2 words' > 2w || framework_failure_
+
+returns_ 1 wc --total 2b 2w > out || fail=1
+
+wc --total=never 2b 2w > out || fail=1
+cat <<\EOF > exp || framework_failure_
+ 1  1  2 2b
+ 1  2  8 2w
+EOF
+compare exp out || fail=1
+
+wc --total=only 2b 2w > out || fail=1
+cat <<\EOF > exp || framework_failure_
+2 3 10
+EOF
+compare exp out || fail=1
+
+wc --total=always 2b > out || fail=1
+test "$(wc -l < out)" = 2 || fail=1
+
+if truncate -s 2E big; then
+  if test "$UINTMAX_MAX" = '18446744073709551615'; then
+    # Ensure overflow is diagnosed
+    returns_ 1 wc --total=only -c big big big big big big big big \
+      > out || fail=1
+
+    # Ensure total is saturated
+    printf '%s\n' "$UINTMAX_MAX" > exp || framework_failure_
+    compare exp out || fail=1
+
+    # Ensure overflow is ignored if totals not shown
+    wc --total=never -c big big big big big big big big || fail=1
+  fi
+fi
+
+Exit $fail