import { assert_equalfile } from "https://deno.land/x/denops_std@v3.9.0/function/vim/mod.ts";
When the files {fname-one} and {fname-two} do not contain exactly the same text an error message is added to |v:errors|. Also see |assert-return|. When {fname-one} or {fname-two} does not exist the error will mention that. Mainly useful with |terminal-diff|. Can also be used as a |method|: GetLog()->assert_equalfile('expected.log')