Update test framework: fix run_tests.py to support all test files, add auto-import-check for test files

node_modules/yargs/helpers/helpers.mjs

@@ -0,0 +1,10 @@
+import {applyExtends as _applyExtends} from '../build/lib/utils/apply-extends.js';
+import {hideBin} from '../build/lib/utils/process-argv.js';
+import Parser from 'yargs-parser';
+import shim from '../lib/platform-shims/esm.mjs';
+
+const applyExtends = (config, cwd, mergeExtends) => {
+  return _applyExtends(config, cwd, mergeExtends, shim);
+};
+
+export {applyExtends, hideBin, Parser};