Serve directory for file server & Fix bufio flush bug (denoland/deno_std#15)

Original: b78f4e9fbd

test.ts

@@ -1,4 +1,19 @@
+import { run } from "deno";
+
 import "./buffer_test.ts";
 import "./bufio_test.ts";
 import "./textproto_test.ts";
+import { runTests, completePromise } from "./file_server_test.ts";
+
+// file server test
+const fileServer = run({
+  args: ["deno", "--allow-net", "file_server.ts", "."]
+});
+// I am also too lazy to do this properly LOL
+runTests(new Promise(res => setTimeout(res, 1000)));
+(async () => {
+  await completePromise;
+  fileServer.close();
+})();
+
 // TODO import "./http_test.ts";