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

node_modules/uuid/dist/esm-browser/rng.js

@@ -0,0 +1,11 @@
+let getRandomValues;
+const rnds8 = new Uint8Array(16);
+export default function rng() {
+    if (!getRandomValues) {
+        if (typeof crypto === 'undefined' || !crypto.getRandomValues) {
+            throw new Error('crypto.getRandomValues() not supported. See https://github.com/uuidjs/uuid#getrandomvalues-not-supported');
+        }
+        getRandomValues = crypto.getRandomValues.bind(crypto);
+    }
+    return getRandomValues(rnds8);
+}