feat: improve rules_js parity

tests/install_extension_test/BUILD.bazel

@@ -6,3 +6,10 @@ sh_test(
     args = ["$(location //bun:extensions.bzl)"],
     data = ["//bun:extensions.bzl"],
 )
+
+sh_test(
+    name = "npm_translate_lock_extension_shape_test",
+    srcs = ["npm_extension_shape_test.sh"],
+    args = ["$(location //npm:extensions.bzl)"],
+    data = ["//npm:extensions.bzl"],
+)

tests/install_extension_test/npm_extension_shape_test.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+extension_file="$1"
+
+grep -Eq 'npm_translate_lock[[:space:]]*=[[:space:]]*module_extension\(' "${extension_file}"
+grep -Eq 'tag_classes[[:space:]]*=[[:space:]]*\{"translate":[[:space:]]*_translate\}' "${extension_file}"
+grep -Eq '"name":[[:space:]]*attr\.string\(mandatory[[:space:]]*=[[:space:]]*True\)' "${extension_file}"
+grep -Eq '"package_json":[[:space:]]*attr\.label\(mandatory[[:space:]]*=[[:space:]]*True\)' "${extension_file}"
+grep -Eq '"lockfile":[[:space:]]*attr\.label\(mandatory[[:space:]]*=[[:space:]]*True\)' "${extension_file}"