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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.import { assertEquals, assertThrows } from "../testing/asserts.ts";import { BytesList } from "./bytes_list.ts";import * as bytes from "./mod.ts";function setup() {  const arr = new BytesList();  const part1 = new Uint8Array([0, 1, 2]);  const part2 = new Uint8Array([3, 4, 5, 6]);  const part3 = new Uint8Array([7]);  const part4 = new Uint8Array([0, 0, 8, 0]);  const part5 = new Uint8Array([0, 9]);  arr.add(part1);  arr.add(part2);  arr.add(part3);  arr.add(new Uint8Array());  arr.add(part3, 0, 0);  arr.add(part4, 2, 3);  arr.add(part5, 1, 2);  return arr;}
Deno.test("[bytes] BytesList.size", () => {  assertEquals(new BytesList().size(), 0);  assertEquals(setup().size(), 10);});
Deno.test("[bytes] BytesList.getChunkIndex", () => {  const arr = setup();  assertEquals(arr.getChunkIndex(-1), -1);  assertEquals(arr.getChunkIndex(0), 0);  assertEquals(arr.getChunkIndex(1), 0);  assertEquals(arr.getChunkIndex(2), 0);  assertEquals(arr.getChunkIndex(3), 1);  assertEquals(arr.getChunkIndex(4), 1);  assertEquals(arr.getChunkIndex(5), 1);  assertEquals(arr.getChunkIndex(6), 1);  assertEquals(arr.getChunkIndex(7), 2);  assertEquals(arr.getChunkIndex(8), 3);  assertEquals(arr.getChunkIndex(9), 4);  assertEquals(arr.getChunkIndex(10), -1);});
Deno.test("[bytes] BytesList.get", () => {  const arr = setup();  for (let i = 0; i < arr.size(); i++) {    assertEquals(arr.get(i), i);  }  assertThrows(    () => {      arr.get(-100);    },    Error,    "out of range",  );  assertThrows(    () => {      arr.get(100);    },    Error,    "out of range",  );});
Deno.test("[bytes] BytesList.add should ignore empty buf and range", () => {  const arr = new BytesList();  const buf = new Uint8Array([0]);  arr.add(new Uint8Array());  arr.add(buf, 0, 0);  assertEquals(arr.size(), 0);});Deno.test("[bytes] BytesList.add should throw if invalid range", () => {  const arr = new BytesList();  const buf = new Uint8Array([0]);  assertThrows(    () => {      arr.add(buf, -1, 0);    },    Error,    "invalid range",  );  assertThrows(    () => {      arr.add(buf, 0, -1);    },    Error,    "invalid range",  );  assertThrows(    () => {      arr.add(buf, 4, 0);    },    Error,    "invalid range",  );  assertThrows(    () => {      arr.add(buf, 0, 4);    },    Error,    "invalid range",  );});Deno.test("[bytes] BytesList.slice", () => {  const arr = setup();  assertEquals(    bytes.equals(arr.slice(0, 4), new Uint8Array([0, 1, 2, 3])),    true,  );  assertEquals(bytes.equals(arr.slice(3, 5), new Uint8Array([3, 4])), true);  assertEquals(    bytes.equals(arr.slice(0), new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])),    true,  );  assertThrows(    () => {      arr.slice(9, 11);    },    Error,    "invalid range",  );  assertThrows(    () => {      arr.slice(-1, 1);    },    Error,    "invalid range",  );  assertThrows(    () => {      arr.slice(1, 0);    },    Error,    "invalid range",  );});Deno.test("[bytes] BytesList.concat", () => {  const arr = setup();  assertEquals(    bytes.equals(      arr.concat(),      new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]),    ),    true,  );});Deno.test("[bytes] BytesList.shift", () => {  const arr = setup();  arr.shift(0);  arr.shift(3);  assertEquals(arr.size(), 7);  assertEquals(    bytes.equals(      arr.concat(),      new Uint8Array([3, 4, 5, 6, 7, 8, 9]),    ),    true,  );  arr.shift(4);  assertEquals(arr.size(), 3);  assertEquals(    bytes.equals(      arr.concat(),      new Uint8Array([7, 8, 9]),    ),    true,  );});Deno.test("[bytes] BytesList.shift 2", () => {  const arr = new BytesList();  arr.add(new Uint8Array([0, 0, 0, 1, 2, 0]), 0, 5);  arr.shift(2);  assertEquals(arr.size(), 3);  assertEquals(    bytes.equals(      arr.concat(),      new Uint8Array([        0,        1,        2,      ]),    ),    true,  );  arr.shift(2);  assertEquals(arr.size(), 1);  assertEquals(    bytes.equals(      arr.concat(),      new Uint8Array([        2,      ]),    ),    true,  );});
Deno.test("[bytes] BytesList.shift 3", () => {  const arr = new BytesList();  arr.add(new Uint8Array([0, 0, 0, 1, 2, 0]), 0, 5);  arr.shift(100);  assertEquals(arr.size(), 0);  assertEquals(arr.concat().byteLength, 0);});
Deno.test("[bytes] BytesList.iterator()", () => {  const arr = setup();  assertEquals(Array.from(arr.iterator()), [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);  assertEquals(Array.from(arr.iterator(5)), [5, 6, 7, 8, 9]);  assertEquals(Array.from(arr.iterator(-1)), []);  assertEquals(Array.from(arr.iterator(100)), []);});