new: pkg: change to multifile tests.

bin/test

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash-shlib
+# -*- mode: shell-script -*-
+
+include common
+
+exname="$(basename $0)"
+
+if ! [ -e "../.package" ]; then
+    echo "Please execute this in test directory, with '../bin/$exname'." >&2
+    echo "Or, if pkgcmd is installed, use 't'..."
+    exit 1
+fi
+
+base=$(realpath "$PWD/..")
+export base
+
+cd "$base/test"
+
+for tfile in *; do
+    [ -e "$tfile" ] || continue
+    [ -d "$tfile" ] && continue
+    (
+        /usr/bin/env bash-shlib "./$tfile" "$@"
+    ) && continue
+    exit "$?"
+done
+
+