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import { assertEquals } from "https://deno.land/std@0.157.0/testing/asserts.ts";import expand from "./index.ts";Deno.test("brace-expansion", () => {    const inputs = [        "{a,b}c{d,e}f",        "abcd",        "abc{x,y,m,n,p,q}",        "{x,y,m,n,p,q}",    ];    const outputs = [        ["acdf", "acef", "bcdf", "bcef"],        ["abcd"],        ["abcm", "abcn", "abcp", "abcq", "abcx", "abcy"],        ["m", "n", "p", "q", "x", "y"],    ];    assertEquals(inputs.map(expand), outputs);});