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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.import { assertEquals } from "../testing/asserts.ts";import { Buffer } from "./buffer.ts";import { StringDecoder } from "./string_decoder.ts";
Deno.test({  name: "String decoder is encoding utf8 correctly",  fn() {    let decoder;
    decoder = new StringDecoder("utf8");    assertEquals(decoder.write(Buffer.from("E1", "hex")), "");    assertEquals(decoder.end(), "\ufffd");
    decoder = new StringDecoder("utf8");    assertEquals(decoder.write(Buffer.from("E18B", "hex")), "");    assertEquals(decoder.end(), "\ufffd");
    decoder = new StringDecoder("utf8");    assertEquals(decoder.write(Buffer.from("\ufffd")), "\ufffd");    assertEquals(decoder.end(), "");
    decoder = new StringDecoder("utf8");    assertEquals(      decoder.write(Buffer.from("\ufffd\ufffd\ufffd")),      "\ufffd\ufffd\ufffd",    );    assertEquals(decoder.end(), "");
    decoder = new StringDecoder("utf8");    assertEquals(decoder.write(Buffer.from("EFBFBDE2", "hex")), "\ufffd");    assertEquals(decoder.end(), "\ufffd");
    decoder = new StringDecoder("utf8");    assertEquals(decoder.write(Buffer.from("F1", "hex")), "");    assertEquals(decoder.write(Buffer.from("41F2", "hex")), "\ufffdA");    assertEquals(decoder.end(), "\ufffd");
    decoder = new StringDecoder("utf8");    assertEquals(decoder.text(Buffer.from([0x41]), 2), "");  },});
Deno.test({  name: "String decoder is encoding base64 correctly",  fn() {    let decoder;
    decoder = new StringDecoder("base64");    assertEquals(decoder.write(Buffer.from("E1", "hex")), "");    assertEquals(decoder.end(), "4Q==");
    decoder = new StringDecoder("base64");    assertEquals(decoder.write(Buffer.from("E18B", "hex")), "");    assertEquals(decoder.end(), "4Ys=");
    decoder = new StringDecoder("base64");    assertEquals(decoder.write(Buffer.from("\ufffd")), "77+9");    assertEquals(decoder.end(), "");
    decoder = new StringDecoder("base64");    assertEquals(      decoder.write(Buffer.from("\ufffd\ufffd\ufffd")),      "77+977+977+9",    );    assertEquals(decoder.end(), "");
    decoder = new StringDecoder("base64");    assertEquals(decoder.write(Buffer.from("EFBFBDE2", "hex")), "77+9");    assertEquals(decoder.end(), "4g==");
    decoder = new StringDecoder("base64");    assertEquals(decoder.write(Buffer.from("F1", "hex")), "");    assertEquals(decoder.write(Buffer.from("41F2", "hex")), "8UHy");    assertEquals(decoder.end(), "");
    decoder = new StringDecoder("base64");    assertEquals(decoder.text(Buffer.from([0x41]), 2), "");  },});
Deno.test({  name: "String decoder is encoding hex correctly",  fn() {    let decoder;
    decoder = new StringDecoder("hex");    assertEquals(decoder.write(Buffer.from("E1", "hex")), "e1");    assertEquals(decoder.end(), "");
    decoder = new StringDecoder("hex");    assertEquals(decoder.write(Buffer.from("E18B", "hex")), "e18b");    assertEquals(decoder.end(), "");
    decoder = new StringDecoder("hex");    assertEquals(decoder.write(Buffer.from("\ufffd")), "efbfbd");    assertEquals(decoder.end(), "");
    decoder = new StringDecoder("hex");    assertEquals(      decoder.write(Buffer.from("\ufffd\ufffd\ufffd")),      "efbfbdefbfbdefbfbd",    );    assertEquals(decoder.end(), "");
    decoder = new StringDecoder("hex");    assertEquals(decoder.write(Buffer.from("EFBFBDE2", "hex")), "efbfbde2");    assertEquals(decoder.end(), "");
    decoder = new StringDecoder("hex");    assertEquals(decoder.write(Buffer.from("F1", "hex")), "f1");    assertEquals(decoder.write(Buffer.from("41F2", "hex")), "41f2");    assertEquals(decoder.end(), "");
    decoder = new StringDecoder("hex");    assertEquals(decoder.text(Buffer.from([0x41]), 2), "");  },});