1 files changed, 61 insertions, 0 deletions
diff --git a/tests/cksum/cksum-a.sh b/tests/cksum/cksum-a.sh
new file mode 100755
index 0000000..ec93fdd
--- /dev/null
+++ b/tests/cksum/cksum-a.sh
@@ -0,0 +1,61 @@
+#!/bin/sh
+# Validate cksum --algorithm operation
+
+# Copyright (C) 2021-2023 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/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ cksum
+
+cat > input_options <<\EOF || framework_failure_
+bsd     sum -r
+sysv    sum -s
+crc     cksum
+md5     md5sum MODE
+sha1    sha1sum MODE
+sha224  sha224sum MODE
+sha256  sha256sum MODE
+sha384  sha384sum MODE
+sha512  sha512sum MODE
+blake2b b2sum MODE
+EOF
+
+while read algo prog mode; do
+  for cmode in '-b' '-t'; do
+    pmode="$mode"
+    case $pmode in MODE) pmode=$cmode;; esac
+
+    $prog $pmode /dev/null >> out || continue
+    cksum --untagged $cmode --algorithm=$algo /dev/null > out-c || fail=1
+
+    case "$algo" in
+      bsd) ;;
+      sysv) ;;
+      crc) ;;
+      *) cksum --check --algorithm=$algo out-c || fail=1 ;;
+    esac
+
+    cat out-c >> out-a || framework_failure_
+  done
+done < input_options
+compare out out-a || fail=1
+
+# Ensure --check not allowed with older (non tagged) algorithms
+returns_ 1 cksum -a bsd --check </dev/null || fail=1
+
+# Ensure abbreviations not supported for algorithm selection
+returns_ 1 cksum -a sha22 </dev/null || fail=1
+
+Exit $fail