Support relocatable custom install roots

tests/test_openclaw_node.sh

@@ -0,0 +1,54 @@
+#!/bin/sh
+set -eu
+
+SCRIPT_DIR=$(CDPATH= cd -- "$(dirname "$0")" && pwd)
+REPO_ROOT=$(CDPATH= cd -- "$SCRIPT_DIR/.." && pwd)
+
+. "$REPO_ROOT/root/usr/libexec/openclaw-node.sh"
+
+fail() {
+	echo "FAIL: $1" >&2
+	exit 1
+}
+
+normalized=$(oc_normalize_node_version "v22.16.1") || fail "normalize valid version"
+[ "$normalized" = "22.16.1" ] || fail "normalized version value"
+
+if oc_normalize_node_version "broken-version" >/dev/null 2>&1; then
+	fail "invalid version should not normalize"
+fi
+
+oc_node_version_ge "22.16.0" "22.16.0" || fail "exact version should satisfy requirement"
+oc_node_version_ge "22.16.1" "22.16.0" || fail "newer patch should satisfy requirement"
+oc_node_version_ge "23.0.0" "22.16.0" || fail "newer major should satisfy requirement"
+if oc_node_version_ge "22.15.1" "22.16.0"; then
+	fail "older minor version should not satisfy requirement"
+fi
+
+tmpdir=$(mktemp -d)
+trap 'rm -rf "$tmpdir"' EXIT INT TERM
+
+cat > "$tmpdir/node-ok" <<'EOF'
+#!/bin/sh
+if [ "${1:-}" = "--version" ]; then
+	echo "v22.16.2"
+	exit 0
+fi
+exit 1
+EOF
+chmod +x "$tmpdir/node-ok"
+
+cat > "$tmpdir/node-bad" <<'EOF'
+#!/bin/sh
+exit 127
+EOF
+chmod +x "$tmpdir/node-bad"
+
+read_ver=$(oc_read_node_version "$tmpdir/node-ok") || fail "read runnable node version"
+[ "$read_ver" = "22.16.2" ] || fail "read version value"
+
+if oc_read_node_version "$tmpdir/node-bad" >/dev/null 2>&1; then
+	fail "broken node binary should not be accepted"
+fi
+
+echo "ok"