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import { assertEquals } from "https://deno.land/std@v0.34.0/testing/asserts.ts";
import { encode } from "../deps.ts";import { awsSignatureV4, kdf } from "../client/aws_signature_v4.ts";
Deno.test({  name: "aws signature v4 flow",  fn(): void {    const expectedSignature: string =      "31fac5ed29db737fbcafac527470ca6d9283283197c5e6e94ea40ddcec14a9c1";
    const key: Uint8Array = kdf(      "secret",      "20310430",      "region",      "dynamodb",      "utf8",    ) as Uint8Array;
    const msg: Uint8Array = encode(      "AWS4-HMAC-SHA256\n20310430T201613Z\n20310430/region/dynamodb/aws4_request\n4be20e7bf75dc6c7e93873b5f49096771729b8a28f0c62010db431fea79220ef",      "utf8",    );
    const actualSignature: string = awsSignatureV4(key, msg, "hex") as string;
    assertEquals(actualSignature, expectedSignature);  },});