mirror of
https://github.com/denoland/deno.git
synced 2024-12-22 07:14:47 -05:00
653 lines
17 KiB
TypeScript
653 lines
17 KiB
TypeScript
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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import { Buffer } from "node:buffer";
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import { assertEquals, assertThrows } from "@std/assert";
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Deno.test({
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name: "[node/buffer] alloc fails if size is not a number",
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fn() {
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const invalidSizes = [{}, "1", "foo", []];
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for (const size of invalidSizes) {
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assertThrows(
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() => {
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// deno-lint-ignore ban-ts-comment
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// @ts-expect-error
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Buffer.alloc(size);
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},
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TypeError,
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'"size" argument must be of type number',
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"should throw on non-number size",
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);
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}
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},
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});
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Deno.test({
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name: "[node/buffer] alloc allocates a buffer with the expected size",
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fn() {
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const buffer: Buffer = Buffer.alloc(1);
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assertEquals(buffer.length, 1, "Buffer size should be 1");
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assertEquals(buffer[0], 0, "Content should be filled with 0");
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},
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});
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Deno.test({
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name: "[node/buffer] alloc(0) creates an empty buffer",
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fn() {
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const buffer: Buffer = Buffer.alloc(0);
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assertEquals(buffer.length, 0, "Buffer size should be 0");
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},
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});
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Deno.test({
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name: "[node/buffer] allocUnsafe allocates a buffer with the expected size",
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fn() {
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const buffer: Buffer = Buffer.allocUnsafe(1);
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assertEquals(buffer.length, 1, "Buffer size should be 1");
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},
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});
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Deno.test({
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name: "[node/buffer] allocUnsafe(0) creates an empty buffer",
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fn() {
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const buffer: Buffer = Buffer.allocUnsafe(0);
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assertEquals(buffer.length, 0, "Buffer size should be 0");
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},
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});
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Deno.test({
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name: "[node/buffer] alloc filled correctly with integer",
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fn() {
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const buffer: Buffer = Buffer.alloc(3, 5);
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assertEquals(buffer, Buffer.from([5, 5, 5]));
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},
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});
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Deno.test({
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name: "[node/buffer] alloc filled correctly with single character",
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fn() {
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assertEquals(Buffer.alloc(5, "a"), Buffer.from([97, 97, 97, 97, 97]));
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},
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});
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Deno.test({
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name: "[node/buffer] alloc filled correctly with base64 string",
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fn() {
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assertEquals(
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Buffer.alloc(11, "aGVsbG8gd29ybGQ=", "base64"),
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Buffer.from([104, 101, 108, 108, 111, 32, 119, 111, 114, 108, 100]),
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);
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},
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});
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Deno.test({
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name: "[node/buffer] alloc filled correctly with hex string",
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fn() {
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assertEquals(
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Buffer.alloc(4, "64656e6f", "hex"),
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Buffer.from([100, 101, 110, 111]),
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);
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},
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});
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Deno.test({
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name:
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"[node/buffer] alloc filled correctly with hex string smaller than alloc size",
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fn() {
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assertEquals(
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Buffer.alloc(13, "64656e6f", "hex").toString(),
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"denodenodenod",
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);
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},
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});
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Deno.test({
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name:
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"[node/buffer] alloc filled correctly with Uint8Array smaller than alloc size",
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fn() {
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// todo(fbaltor): remove this 'any' when @types/node fixes https://github.com/DefinitelyTyped/DefinitelyTyped/discussions/65831
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// deno-lint-ignore no-explicit-any
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const arr: any = new Uint8Array([100, 101]);
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assertEquals(
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Buffer.alloc(7, arr),
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Buffer.from([100, 101, 100, 101, 100, 101, 100]),
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);
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assertEquals(
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Buffer.alloc(6, arr),
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Buffer.from([100, 101, 100, 101, 100, 101]),
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);
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},
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});
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Deno.test({
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name:
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"[node/buffer] alloc filled correctly with Uint8Array bigger than alloc size",
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fn() {
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assertEquals(
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// todo(fbaltor): remove this 'any' when @types/node fixes https://github.com/DefinitelyTyped/DefinitelyTyped/discussions/65831
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// deno-lint-ignore no-explicit-any
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Buffer.alloc(1, new Uint8Array([100, 101]) as any),
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Buffer.from([100]),
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);
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},
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});
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Deno.test({
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name: "[node/buffer] alloc filled correctly with Buffer",
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fn() {
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assertEquals(
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Buffer.alloc(6, Buffer.from([100, 101])),
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Buffer.from([100, 101, 100, 101, 100, 101]),
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);
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assertEquals(
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Buffer.alloc(7, Buffer.from([100, 101])),
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Buffer.from([100, 101, 100, 101, 100, 101, 100]),
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);
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},
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});
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// tests from:
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// https://github.com/nodejs/node/blob/56dbe466fdbc598baea3bfce289bf52b97b8b8f7/test/parallel/test-buffer-bytelength.js#L70
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Deno.test({
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name: "[node/buffer] Byte length is the expected for strings",
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fn() {
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// Special case: zero length string
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assertEquals(Buffer.byteLength("", "ascii"), 0);
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// deno-lint-ignore no-explicit-any
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assertEquals(Buffer.byteLength("", "HeX" as any), 0);
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// utf8
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assertEquals(Buffer.byteLength("∑éllö wørl∂!", "utf-8"), 19);
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assertEquals(Buffer.byteLength("κλμνξο", "utf8"), 12);
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assertEquals(Buffer.byteLength("挵挶挷挸挹", "utf-8"), 15);
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// deno-lint-ignore no-explicit-any
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assertEquals(Buffer.byteLength("𠝹𠱓𠱸", "UTF8" as any), 12);
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// Without an encoding, utf8 should be assumed
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assertEquals(Buffer.byteLength("hey there"), 9);
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assertEquals(Buffer.byteLength("𠱸挶νξ#xx :)"), 17);
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// deno-lint-ignore no-explicit-any
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assertEquals(Buffer.byteLength("hello world", "" as any), 11);
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// It should also be assumed with unrecognized encoding
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// deno-lint-ignore no-explicit-any
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assertEquals(Buffer.byteLength("hello world", "abc" as any), 11);
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// deno-lint-ignore no-explicit-any
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assertEquals(Buffer.byteLength("ßœ∑≈", "unkn0wn enc0ding" as any), 10);
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// base64
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assertEquals(Buffer.byteLength("aGVsbG8gd29ybGQ=", "base64"), 11);
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// deno-lint-ignore no-explicit-any
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assertEquals(Buffer.byteLength("aGVsbG8gd29ybGQ=", "BASE64" as any), 11);
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assertEquals(Buffer.byteLength("bm9kZS5qcyByb2NrcyE=", "base64"), 14);
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assertEquals(Buffer.byteLength("aGkk", "base64"), 3);
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assertEquals(
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Buffer.byteLength("bHNrZGZsa3NqZmtsc2xrZmFqc2RsZmtqcw==", "base64"),
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25,
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);
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// special padding
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assertEquals(Buffer.byteLength("aaa=", "base64"), 2);
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assertEquals(Buffer.byteLength("aaaa==", "base64"), 3);
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assertEquals(Buffer.byteLength("Il était tué"), 14);
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assertEquals(Buffer.byteLength("Il était tué", "utf8"), 14);
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["ascii", "latin1", "binary"]
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.reduce((es: string[], e: string) => es.concat(e, e.toUpperCase()), [])
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.forEach((encoding: string) => {
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// deno-lint-ignore no-explicit-any
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assertEquals(Buffer.byteLength("Il était tué", encoding as any), 12);
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});
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["ucs2", "ucs-2", "utf16le", "utf-16le"]
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.reduce((es: string[], e: string) => es.concat(e, e.toUpperCase()), [])
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.forEach((encoding: string) => {
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// deno-lint-ignore no-explicit-any
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assertEquals(Buffer.byteLength("Il était tué", encoding as any), 24);
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});
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},
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});
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Deno.test({
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name: "[node/buffer] Byte length is the expected one for non-strings",
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fn() {
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assertEquals(
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Buffer.byteLength(Buffer.alloc(0)),
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Buffer.alloc(0).byteLength,
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"Byte length differs on buffers",
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);
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},
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});
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Deno.test({
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name: "[node/buffer] Two Buffers are concatenated",
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fn() {
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const data1 = [1, 2, 3];
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const data2 = [4, 5, 6];
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const buffer1 = Buffer.from(data1);
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const buffer2 = Buffer.from(data2);
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const resultBuffer = Buffer.concat([buffer1, buffer2]);
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const expectedBuffer = Buffer.from([...data1, ...data2]);
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assertEquals(resultBuffer, expectedBuffer);
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},
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});
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Deno.test({
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name: "[node/buffer] A single buffer concatenates and return the same buffer",
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fn() {
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const buffer1 = Buffer.alloc(1);
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const resultBuffer = Buffer.concat([buffer1]);
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assertEquals(resultBuffer.length, 1, "Buffer length should be 1");
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},
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});
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Deno.test({
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name: "[node/buffer] No buffers concat returns an empty buffer",
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fn() {
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const resultBuffer = Buffer.concat([]);
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assertEquals(resultBuffer.length, 0, "Buffer length should be 0");
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},
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});
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Deno.test({
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name: "[node/buffer] Buffer concat respects totalLength parameter",
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fn() {
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const maxLength1 = 10;
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const buffer1 = Buffer.alloc(2);
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const buffer2 = Buffer.alloc(2);
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assertEquals(
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Buffer.concat([buffer1, buffer2], maxLength1).length,
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maxLength1,
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);
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const maxLength2 = 3;
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const buffer3 = Buffer.alloc(2);
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const buffer4 = Buffer.alloc(2);
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assertEquals(
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Buffer.concat([buffer3, buffer4], maxLength2).length,
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maxLength2,
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);
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},
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});
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Deno.test({
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name: "[node/buffer] Buffer 8 bit unsigned integers",
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fn() {
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const buffer = Buffer.from([0xff, 0x2a, 0x2a, 0x2a]);
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assertEquals(buffer.readUInt8(0), 255);
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assertEquals(buffer.readUInt8(1), 42);
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assertEquals(buffer.readUInt8(2), 42);
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assertEquals(buffer.readUInt8(3), 42);
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},
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});
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Deno.test({
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name: "[node/buffer] Buffer 16 bit unsigned integers",
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fn() {
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const buffer = Buffer.from([0x00, 0x2a, 0x42, 0x3f]);
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assertEquals(buffer.readUInt16BE(0), 0x2a);
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assertEquals(buffer.readUInt16BE(1), 0x2a42);
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assertEquals(buffer.readUInt16BE(2), 0x423f);
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assertEquals(buffer.readUInt16LE(0), 0x2a00);
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assertEquals(buffer.readUInt16LE(1), 0x422a);
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assertEquals(buffer.readUInt16LE(2), 0x3f42);
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buffer[0] = 0xfe;
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buffer[1] = 0xfe;
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assertEquals(buffer.readUInt16BE(0), 0xfefe);
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assertEquals(buffer.readUInt16LE(0), 0xfefe);
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},
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});
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Deno.test({
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name: "[node/buffer] Buffer 32 bit unsigned integers",
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fn() {
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const buffer = Buffer.from([0x32, 0x65, 0x42, 0x56, 0x23, 0xff]);
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assertEquals(buffer.readUInt32BE(0), 0x32654256);
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assertEquals(buffer.readUInt32BE(1), 0x65425623);
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assertEquals(buffer.readUInt32BE(2), 0x425623ff);
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assertEquals(buffer.readUInt32LE(0), 0x56426532);
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assertEquals(buffer.readUInt32LE(1), 0x23564265);
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assertEquals(buffer.readUInt32LE(2), 0xff235642);
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},
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});
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Deno.test({
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name: "[node/buffer] Buffer readUIntBE",
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fn() {
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const buffer = Buffer.from([
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0x01,
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0x02,
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0x03,
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0x04,
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0x05,
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0x06,
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0x07,
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0x08,
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]);
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assertEquals(buffer.readUIntBE(0, 1), 0x01);
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assertEquals(buffer.readUIntBE(0, 2), 0x0102);
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assertEquals(buffer.readUIntBE(0, 4), 0x01020304);
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},
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});
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Deno.test({
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name: "[node/buffer] Buffer readUIntLE",
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fn() {
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const buffer = Buffer.from([
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0x01,
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0x02,
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0x03,
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0x04,
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0x05,
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0x06,
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0x07,
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0x08,
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]);
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assertEquals(buffer.readUIntLE(0, 1), 0x01);
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assertEquals(buffer.readUIntLE(0, 2), 0x0201);
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assertEquals(buffer.readUIntLE(0, 4), 0x04030201);
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},
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});
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Deno.test({
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name: "[node/buffer] Buffer copy works as expected",
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fn() {
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const data1 = new Uint8Array([1, 2, 3]);
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const data2 = new Uint8Array([4, 5, 6]);
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const buffer1 = Buffer.from(data1);
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const buffer2 = Buffer.from(data2);
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//Mutates data_1
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data1.set(data2);
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//Mutates buffer_1
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buffer2.copy(buffer1);
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assertEquals(
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Buffer.from(data1),
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buffer1,
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);
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},
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});
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Deno.test({
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name: "[node/buffer] Buffer copy respects the starting point for copy",
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fn() {
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const buffer1 = Buffer.from([1, 2, 3]);
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const buffer2 = Buffer.alloc(8);
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buffer1.copy(buffer2, 5);
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const expected = Buffer.from([0, 0, 0, 0, 0, 1, 2, 3]);
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assertEquals(
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buffer2,
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expected,
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);
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},
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});
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Deno.test({
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name:
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"[node/buffer] Buffer copy doesn't throw on offset but copies until offset reached",
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fn() {
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const buffer1 = Buffer.from([1, 2, 3]);
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const buffer2 = Buffer.alloc(8);
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const writtenBytes1 = buffer1.copy(buffer2, 6);
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assertEquals(
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writtenBytes1,
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2,
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);
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assertEquals(
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buffer2,
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Buffer.from([0, 0, 0, 0, 0, 0, 1, 2]),
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);
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const buffer3 = Buffer.from([1, 2, 3]);
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const buffer4 = Buffer.alloc(8);
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const writtenBytes2 = buffer3.copy(buffer4, 8);
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assertEquals(
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writtenBytes2,
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0,
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);
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assertEquals(
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buffer4,
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Buffer.from([0, 0, 0, 0, 0, 0, 0, 0]),
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);
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},
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});
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Deno.test({
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name: "[node/buffer] Buffer from string creates a Buffer",
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fn() {
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const buffer: Buffer = Buffer.from("test");
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assertEquals(buffer.length, 4, "Buffer length should be 4");
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assertEquals(
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buffer.toString(),
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"test",
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"Buffer to string should recover the string",
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);
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},
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});
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Deno.test({
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name: "[node/buffer] Buffer from string hex",
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fn() {
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for (const encoding of ["hex", "HEX"]) {
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const buffer: Buffer = Buffer.from(
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"7468697320697320612074c3a97374",
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// deno-lint-ignore no-explicit-any
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encoding as any,
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);
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assertEquals(buffer.length, 15, "Buffer length should be 15");
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assertEquals(
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buffer.toString(),
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"this is a tést",
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"Buffer to string should recover the string",
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);
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}
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},
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});
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Deno.test({
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name: "[node/buffer] Buffer from string base64",
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fn() {
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for (const encoding of ["base64", "BASE64"]) {
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const buffer: Buffer = Buffer.from(
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"dGhpcyBpcyBhIHTDqXN0",
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// deno-lint-ignore no-explicit-any
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encoding as any,
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);
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assertEquals(buffer.length, 15, "Buffer length should be 15");
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assertEquals(
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buffer.toString(),
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"this is a tést",
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"Buffer to string should recover the string",
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);
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}
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},
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});
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Deno.test({
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name: "[node/buffer] Buffer to string base64",
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fn() {
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for (const encoding of ["base64", "BASE64"]) {
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const buffer: Buffer = Buffer.from("deno land");
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assertEquals(
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// deno-lint-ignore no-explicit-any
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buffer.toString(encoding as any),
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"ZGVubyBsYW5k",
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"Buffer to string should recover the string in base64",
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);
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}
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const b64 = "dGhpcyBpcyBhIHTDqXN0";
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assertEquals(Buffer.from(b64, "base64").toString("base64"), b64);
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},
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});
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Deno.test({
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name: "[node/buffer] Buffer to string hex",
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fn() {
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for (const encoding of ["hex", "HEX"]) {
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const buffer: Buffer = Buffer.from("deno land");
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assertEquals(
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// deno-lint-ignore no-explicit-any
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buffer.toString(encoding as any),
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"64656e6f206c616e64",
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"Buffer to string should recover the string",
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);
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}
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const hex = "64656e6f206c616e64";
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assertEquals(Buffer.from(hex, "hex").toString("hex"), hex);
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},
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});
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Deno.test({
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name: "[node/buffer] Buffer from string invalid encoding",
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fn() {
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const defaultToUtf8Encodings = [null, 5, {}, true, false, ""];
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const invalidEncodings = ["deno", "base645"];
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for (const encoding of defaultToUtf8Encodings) {
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// deno-lint-ignore no-explicit-any
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assertEquals(Buffer.from("yes", encoding as any).toString(), "yes");
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}
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for (const encoding of invalidEncodings) {
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assertThrows(
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() => {
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// deno-lint-ignore no-explicit-any
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Buffer.from("yes", encoding as any);
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},
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|
TypeError,
|
|
`Unknown encoding: ${encoding}`,
|
|
);
|
|
}
|
|
},
|
|
});
|
|
|
|
Deno.test({
|
|
name: "[node/buffer] Buffer from another buffer creates a copy",
|
|
fn() {
|
|
const buffer1: Buffer = Buffer.from("test");
|
|
const buffer2: Buffer = Buffer.from(buffer1);
|
|
assertEquals(buffer2.length, 4, "Buffer length should be 4");
|
|
assertEquals(
|
|
buffer2.toString(),
|
|
"test",
|
|
"Buffer to string should recover the string",
|
|
);
|
|
buffer1[0] = 114;
|
|
assertEquals(buffer2.toString(), "test", "Buffer should be a copy");
|
|
},
|
|
});
|
|
|
|
Deno.test({
|
|
name: "[node/buffer] isBuffer returns true if the object is a buffer",
|
|
fn() {
|
|
assertEquals(Buffer.isBuffer(Buffer.from("test")), true);
|
|
},
|
|
});
|
|
|
|
Deno.test({
|
|
name: "[node/buffer] isBuffer returns false if the object is not a buffer",
|
|
fn() {
|
|
assertEquals(Buffer.isBuffer({ test: 3 }), false);
|
|
assertEquals(Buffer.isBuffer(new Uint8Array()), false);
|
|
},
|
|
});
|
|
|
|
Deno.test({
|
|
name: "[node/buffer] Buffer toJSON",
|
|
fn() {
|
|
assertEquals(
|
|
JSON.stringify(Buffer.from("deno")),
|
|
'{"type":"Buffer","data":[100,101,110,111]}',
|
|
);
|
|
},
|
|
});
|
|
|
|
Deno.test({
|
|
name: "[node/buffer] slice does not create a copy",
|
|
fn() {
|
|
const buf = Buffer.from("ceno");
|
|
// This method is not compatible with the Uint8Array.prototype.slice()
|
|
const slice = buf.slice();
|
|
slice[0]++;
|
|
assertEquals(slice.toString(), "deno");
|
|
},
|
|
});
|
|
|
|
Deno.test({
|
|
name: "[node/buffer] slice with infinity returns empty buffer",
|
|
fn() {
|
|
const buf = Buffer.from([1, 2, 3, 4, 5]);
|
|
assertEquals(buf.slice(Infinity).length, 0);
|
|
},
|
|
});
|
|
|
|
Deno.test({
|
|
name: "[node/buffer] isEncoding returns true for valid encodings",
|
|
fn() {
|
|
[
|
|
"hex",
|
|
"HEX",
|
|
"HeX",
|
|
"utf8",
|
|
"utf-8",
|
|
"ascii",
|
|
"latin1",
|
|
"binary",
|
|
"base64",
|
|
"BASE64",
|
|
"BASe64",
|
|
"ucs2",
|
|
"ucs-2",
|
|
"utf16le",
|
|
"utf-16le",
|
|
].forEach((enc) => {
|
|
assertEquals(Buffer.isEncoding(enc), true);
|
|
});
|
|
},
|
|
});
|
|
|
|
Deno.test({
|
|
name: "[node/buffer] isEncoding returns false for invalid encodings",
|
|
fn() {
|
|
[
|
|
"utf9",
|
|
"utf-7",
|
|
"Unicode-FTW",
|
|
"new gnu gun",
|
|
false,
|
|
NaN,
|
|
{},
|
|
Infinity,
|
|
[],
|
|
1,
|
|
0,
|
|
-1,
|
|
].forEach((enc) => {
|
|
// @ts-expect-error This deliberately ignores the type constraint
|
|
assertEquals(Buffer.isEncoding(enc), false);
|
|
});
|
|
},
|
|
});
|
|
|
|
Deno.test({
|
|
name:
|
|
"[node/buffer] utf8Write handle missing optional length argument (https://github.com/denoland/deno_std/issues/2046)",
|
|
fn() {
|
|
const buf = Buffer.alloc(8);
|
|
// @ts-expect-error Buffer.prototype.utf8Write is an undocumented API
|
|
assertEquals(buf.utf8Write("abc", 0), 3);
|
|
assertEquals([...buf], [0x61, 0x62, 0x63, 0, 0, 0, 0, 0]);
|
|
},
|
|
});
|