migrate to typescript

test/utils.ts

@@ -0,0 +1,10 @@
+import {config} from '../src/config';
+
+export function getbaseURL() {
+    return "http://localhost:" + config.port;
+}
+
+/**
+ * Duplicated from Mocha types. TypeScript doesn't infer that type by itself for some reason.
+ */
+export type Done = (err?: any) => void;