feat: add std/expect

expect/_inspect_args.ts

@@ -0,0 +1,13 @@
+// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
+// deno-lint-ignore-file
+
+export function inspectArgs(args: unknown[]): string {
+  return args.map(inspectArg).join(", ");
+}
+
+export function inspectArg(arg: unknown): string {
+  const { Deno } = globalThis as any;
+  return typeof Deno !== "undefined" && Deno.inspect
+    ? Deno.inspect(arg)
+    : String(arg);
+}