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std/archive/tar_test.ts

Deno standard library
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/** * Tar test * * **test summary** * - create a tar archive in memory containing output.txt and dir/tar.ts. * - read and deflate a tar archive containing output.txt * * **to run this test** * deno run --allow-read archive/tar_test.ts */import { assertEquals } from "../testing/asserts.ts";
import { resolve } from "../path/mod.ts";import { Tar, Untar } from "./tar.ts";
const filePath = resolve("archive", "testdata", "example.txt");
Deno.test(async function createTarArchive(): Promise<void> { // initialize const tar = new Tar();
// put data on memory const content = new TextEncoder().encode("hello tar world!"); await tar.append("output.txt", { reader: new Deno.Buffer(content), contentSize: content.byteLength, });
// put a file await tar.append("dir/tar.ts", { filePath });
// write tar data to a buffer const writer = new Deno.Buffer(), wrote = await Deno.copy(writer, tar.getReader());
/** * 3072 = 512 (header) + 512 (content) + 512 (header) + 512 (content) * + 1024 (footer) */ assertEquals(wrote, 3072);});
Deno.test(async function deflateTarArchive(): Promise<void> { const fileName = "output.txt"; const text = "hello tar world!";
// create a tar archive const tar = new Tar(); const content = new TextEncoder().encode(text); await tar.append(fileName, { reader: new Deno.Buffer(content), contentSize: content.byteLength, });
// read data from a tar archive const untar = new Untar(tar.getReader()); const buf = new Deno.Buffer(); const result = await untar.extract(buf); const untarText = new TextDecoder("utf-8").decode(buf.bytes());
// tests assertEquals(result.fileName, fileName); assertEquals(untarText, text);});
Deno.test(async function appendFileWithLongNameToTarArchive(): Promise<void> { // 9 * 15 + 13 = 148 bytes const fileName = new Array(10).join("long-file-name/") + "file-name.txt"; const text = "hello tar world!";
// create a tar archive const tar = new Tar(); const content = new TextEncoder().encode(text); await tar.append(fileName, { reader: new Deno.Buffer(content), contentSize: content.byteLength, });
// read data from a tar archive const untar = new Untar(tar.getReader()); const buf = new Deno.Buffer(); const result = await untar.extract(buf); const untarText = new TextDecoder("utf-8").decode(buf.bytes());
// tests assertEquals(result.fileName, fileName); assertEquals(untarText, text);});