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import { test, runIfMain } from "https://deno.land/x/testing/mod.ts";import { assertEquals } from "https://deno.land/x/testing/asserts.ts";import { sha1 } from "./mod.ts";
interface TestVector {  msg: Uint8Array;  msg_bit_len: number;  hash: Uint8Array;}
/** Deserializes a Uint8Array from a hexadecimal string. */function hex2buf(hex: string): Uint8Array {  const len: number = hex.length;  if (len % 2 || !/^[0-9a-fA-F]*$/.test(hex)) {    throw new TypeError("Invalid hex string.");  }  hex = hex.toLowerCase();  const buf: Uint8Array = new Uint8Array(Math.floor(len / 2));  const end: number = len / 2;  for (let i: number = 0; i < end; ++i) {    buf[i] = parseInt(hex.substr(i * 2, 2), 16);  }  return buf;}
const testVectors: TestVector[] = JSON.parse(  new TextDecoder().decode(Deno.readFileSync("./test_vectors.json"))).map(  ({ msg, msg_bit_len, hash }): TestVector => ({    msg: hex2buf(msg),    msg_bit_len,    hash: hex2buf(hash)  }));
testVectors.forEach(({ msg, msg_bit_len, hash }: TestVector) => {  test({    name: `SHA1 ${msg_bit_len ? msg_bit_len / 8 : 0}-byte msg`,    fn(): void {      assertEquals(sha1(msg), hash);    }  });});
runIfMain(import.meta, { parallel: true });