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// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
// This code has been ported almost directly from Go's src/bytes/buffer_test.go// Copyright 2009 The Go Authors. All rights reserved. BSD license.// https://github.com/golang/go/blob/master/LICENSEimport { assert, assertEquals } from "../testing/asserts.ts";import { Buffer } from "./buffer.ts";import { readAll, readAllSync, writeAll, writeAllSync } from "./util.ts";
// N controls how many iterations of certain checks are performed.const N = 100;let testBytes: Uint8Array | null;
export function init(): void {  if (testBytes == null) {    testBytes = new Uint8Array(N);    for (let i = 0; i < N; i++) {      testBytes[i] = "a".charCodeAt(0) + (i % 26);    }  }}
Deno.test("testReadAll", async () => {  init();  assert(testBytes);  const reader = new Buffer(testBytes.buffer as ArrayBuffer);  const actualBytes = await readAll(reader);  assertEquals(testBytes.byteLength, actualBytes.byteLength);  for (let i = 0; i < testBytes.length; ++i) {    assertEquals(testBytes[i], actualBytes[i]);  }});
Deno.test("testReadAllSync", () => {  init();  assert(testBytes);  const reader = new Buffer(testBytes.buffer as ArrayBuffer);  const actualBytes = readAllSync(reader);  assertEquals(testBytes.byteLength, actualBytes.byteLength);  for (let i = 0; i < testBytes.length; ++i) {    assertEquals(testBytes[i], actualBytes[i]);  }});
Deno.test("testwriteAll", async () => {  init();  assert(testBytes);  const writer = new Buffer();  await writeAll(writer, testBytes);  const actualBytes = writer.bytes();  assertEquals(testBytes.byteLength, actualBytes.byteLength);  for (let i = 0; i < testBytes.length; ++i) {    assertEquals(testBytes[i], actualBytes[i]);  }});
Deno.test("testWriteAllSync", () => {  init();  assert(testBytes);  const writer = new Buffer();  writeAllSync(writer, testBytes);  const actualBytes = writer.bytes();  assertEquals(testBytes.byteLength, actualBytes.byteLength);  for (let i = 0; i < testBytes.length; ++i) {    assertEquals(testBytes[i], actualBytes[i]);  }});