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// Copyright 2018-2023 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 { assertEquals } from "../testing/asserts.ts";import { Buffer } from "./buffer.ts";import { readLines } from "./read_lines.ts";import { readStringDelim } from "./read_string_delim.ts";
/** @todo (iuioiua) Can these tests be separated? */Deno.test("readStringDelimAndLines", async function () {  const enc = new TextEncoder();  const data = new Buffer(    enc.encode("Hello World\tHello World 2\tHello World 3"),  );  const chunks_ = [];
  for await (const c of readStringDelim(data, "\t")) {    chunks_.push(c);  }
  assertEquals(chunks_.length, 3);  assertEquals(chunks_, ["Hello World", "Hello World 2", "Hello World 3"]);
  const linesData = new Buffer(enc.encode("0\n1\n2\n3\n4\n5\n6\n7\n8\n9"));  const linesDataWithTrailingNewLine = new Buffer(enc.encode("1\n2\n3\n"));  // consider data with windows newlines too  const linesDataWindows = new Buffer(    enc.encode("0\r\n1\r\n2\r\n3\r\n4\r\n5\r\n6\r\n7\r\n8\r\n9"),  );  const lines_ = [];
  for await (const l of readLines(linesData)) {    lines_.push(l);  }
  assertEquals(lines_.length, 10);  assertEquals(lines_, ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9"]);
  lines_.length = 0;  for await (const l of readLines(linesDataWithTrailingNewLine)) {    lines_.push(l);  }
  assertEquals(lines_.length, 3);  assertEquals(lines_, ["1", "2", "3"]); // No empty line at the end
  // Now test for "windows" lines  lines_.length = 0;  for await (const l of readLines(linesDataWindows)) {    lines_.push(l);  }  assertEquals(lines_.length, 10);  assertEquals(lines_, ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9"]);});
Deno.test("readLinesWithEncodingISO-8859-15", async function () {  const lines_ = [];  const file_ = await Deno.open("./io/testdata/iso-8859-15.txt");
  for await (const l of readLines(file_, { encoding: "iso-8859-15" })) {    lines_.push(l);  }
  file_.close();
  assertEquals(lines_.length, 12);  assertEquals(lines_, [    "\u0020!\"#$%&'()*+,-./",    "0123456789:;<=>?",    "@ABCDEFGHIJKLMNO",    "PQRSTUVWXYZ[\\]^_",    "`abcdefghijklmno",    "pqrstuvwxyz{|}~",    "\u00a0¡¢£€¥Š§š©ª«¬\u00ad®¯",    "°±²³Žµ¶·ž¹º»ŒœŸ¿",    "ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏ",    "ÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞß",    "àáâãäåæçèéêëìíîï",    "ðñòóôõö÷øùúûüýþÿ",  ]);});