diff --git a/tests/pwhash_test b/tests/pwhash_test

index ff89d60..525885e 100755

--- a/tests/pwhash_test

+++ b/tests/pwhash_test

@@ -77,6 +77,22 @@ if [ "x${pw#\$6\$}" = "x$pw" ]; then

     exit 1

 fi

+cp "${LIBUSER_CONF}_" "$LIBUSER_CONF"

+echo 'crypt_style = blowfish' >> "$LIBUSER_CONF"

+pw=$(workdir="$workdir" $VALGRIND $PYTHON "$srcdir"/pwhash.py)

+if [ "x${pw#\$2b\$}" = "x$pw" ]; then

+    echo "Invalid BLOWFISH hash" >&2

+    exit 1

+fi

+

+cp "${LIBUSER_CONF}_" "$LIBUSER_CONF"

+echo 'crypt_style = yescrypt' >> "$LIBUSER_CONF"

+pw=$(workdir="$workdir" $VALGRIND $PYTHON "$srcdir"/pwhash.py)

+if [ "x${pw#\$y\$}" = "x$pw" ]; then

+    echo "Invalid YESCRYPT hash" >&2

+    exit 1

+fi

+

 cp "${LIBUSER_CONF}_" "$LIBUSER_CONF"

 cat >> "$LIBUSER_CONF" <<\EOF

 crypt_style = sha256