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denoland-deno/cli/tests/unit_node/zlib_test.ts
Jovi De Croock ce539e9189
fix(node/zlib): consistently return buffer (#21747)
This fixes point 3 of https://github.com/denoland/deno/issues/20516

This PR creates consistency between the sync and async versions of the
brotli compress where we will always return a buffer like Node.
2024-01-04 20:34:51 +01:00

127 lines
3.6 KiB
TypeScript

// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
import { assert, assertEquals } from "../../../test_util/std/assert/mod.ts";
import { fromFileUrl, relative } from "../../../test_util/std/path/mod.ts";
import {
brotliCompress,
brotliCompressSync,
brotliDecompressSync,
createBrotliCompress,
createBrotliDecompress,
createDeflate,
} from "node:zlib";
import { Buffer } from "node:buffer";
import { createReadStream, createWriteStream } from "node:fs";
Deno.test("brotli compression sync", () => {
const buf = Buffer.from("hello world");
const compressed = brotliCompressSync(buf);
const decompressed = brotliDecompressSync(compressed);
assertEquals(decompressed.toString(), "hello world");
});
Deno.test("brotli compression async", async () => {
const buf = Buffer.from("hello world");
const compressed: Buffer = await new Promise((resolve) =>
brotliCompress(buf, (_, res) => {
return resolve(res);
})
);
assertEquals(compressed instanceof Buffer, true);
const decompressed = brotliDecompressSync(compressed);
assertEquals(decompressed.toString(), "hello world");
});
Deno.test("brotli compression", async () => {
const { promise, resolve } = Promise.withResolvers<void>();
const compress = createBrotliCompress();
const filePath = relative(
Deno.cwd(),
fromFileUrl(new URL("./testdata/lorem_ipsum.txt", import.meta.url)),
);
const input = createReadStream(filePath);
const output = createWriteStream("lorem_ipsum.txt.br");
const stream = input.pipe(compress).pipe(output);
stream.on("finish", () => {
const decompress = createBrotliDecompress();
const input2 = createReadStream("lorem_ipsum.txt.br");
const output2 = createWriteStream("lorem_ipsum.txt");
const stream2 = input2.pipe(decompress).pipe(output2);
stream2.on("finish", () => {
resolve();
});
});
await promise;
const content = Deno.readTextFileSync("lorem_ipsum.txt");
assert(content.startsWith("Lorem ipsum dolor sit amet"));
try {
Deno.removeSync("lorem_ipsum.txt.br");
} catch {
// pass
}
try {
Deno.removeSync("lorem_ipsum.txt");
} catch {
// pass
}
});
Deno.test("brotli end-to-end with 4097 bytes", () => {
const a = "a".repeat(4097);
const compressed = brotliCompressSync(a);
const decompressed = brotliDecompressSync(compressed);
assertEquals(decompressed.toString(), a);
});
Deno.test(
"zlib create deflate with dictionary",
{ sanitizeResources: false },
async () => {
const { promise, resolve } = Promise.withResolvers<void>();
const handle = createDeflate({
dictionary: Buffer.alloc(0),
});
handle.on("close", () => resolve());
handle.end();
handle.destroy();
await promise;
},
);
Deno.test(
"zlib flush i32",
// FIXME: Handle is not closed properly
{ sanitizeResources: false },
function () {
const handle = createDeflate({
// @ts-expect-error: passing non-int flush value
flush: "",
});
handle.end();
handle.destroy();
},
);
Deno.test("should work with dataview", () => {
const buf = Buffer.from("hello world");
const compressed = brotliCompressSync(new DataView(buf.buffer));
const decompressed = brotliDecompressSync(compressed);
assertEquals(decompressed.toString(), "hello world");
});
Deno.test("should work with a buffer from an encoded string", () => {
const encoder = new TextEncoder();
const buffer = encoder.encode("hello world");
const buf = Buffer.from(buffer);
const compressed = brotliCompressSync(buf);
const decompressed = brotliDecompressSync(compressed);
assertEquals(decompressed.toString(), "hello world");
});