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

node_modules/node-domexception/.history/index_20210527214034.js

@@ -0,0 +1,16 @@
+/*! node-domexception. MIT License. Jimmy Wärting <https://jimmy.warting.se/opensource> */
+
+if (!globalThis.DOMException) {
+  try {
+    const { MessageChannel } = require('worker_threads'),
+    port = new MessageChannel().port1,
+    ab = new ArrayBuffer()
+    port.postMessage(ab, [ab, ab])
+  } catch (err) {
+    err.constructor.name === 'DOMException' && (
+      globalThis.DOMException = err.constructor
+    )
+  }
+}
+
+module.exports = globalThis.DOMException