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| Download ZIP from the Code button; a slimmer lifecycle panel; agent steps say what was done, not sandbox paths | 1 | import assert from "node:assert/strict"; |
| 2 | import { test } from "node:test"; | |
| 3 | import { inflateRawSync } from "node:zlib"; | |
| 4 | ||
| 5 | import { crc32, zip } from "./zip"; | |
| 6 | ||
| 7 | test("crc32 matches the standard check value", () => { | |
| 8 | assert.equal(crc32(new TextEncoder().encode("123456789")), 0xcbf43926); | |
| 9 | }); | |
| 10 | ||
| 11 | test("a zip holds each file, deflated or stored, and reads back", async () => { | |
| 12 | const text = new TextEncoder().encode("hello ".repeat(200)); | |
| 13 | const tiny = new TextEncoder().encode("x"); | |
| 14 | const out = await zip([ | |
| 15 | { path: "repo-main/README.md", data: text }, | |
| 16 | { path: "repo-main/a.txt", data: tiny }, | |
| 17 | { path: "repo-main/empty", data: new Uint8Array() }, | |
| 18 | ]); | |
| 19 | const view = new DataView(out.buffer, out.byteOffset, out.byteLength); | |
| 20 | // The end record names three entries and where the directory starts. | |
| 21 | const end = out.length - 22; | |
| 22 | assert.equal(view.getUint32(end, true), 0x06054b50); | |
| 23 | assert.equal(view.getUint16(end + 10, true), 3); | |
| 24 | // Read each local entry back. | |
| 25 | let at = 0; | |
| 26 | const read: Record<string, string> = {}; | |
| 27 | for (let i = 0; i < 3; i++) { | |
| 28 | assert.equal(view.getUint32(at, true), 0x04034b50); | |
| 29 | const method = view.getUint16(at + 8, true); | |
| 30 | const size = view.getUint32(at + 18, true); | |
| 31 | const nameLength = view.getUint16(at + 26, true); | |
| 32 | const name = new TextDecoder().decode(out.subarray(at + 30, at + 30 + nameLength)); | |
| 33 | const body = out.subarray(at + 30 + nameLength, at + 30 + nameLength + size); | |
| 34 | read[name] = new TextDecoder().decode(method === 8 ? inflateRawSync(body) : body); | |
| 35 | at += 30 + nameLength + size; | |
| 36 | } | |
| 37 | assert.equal(read["repo-main/README.md"], "hello ".repeat(200)); | |
| 38 | assert.equal(read["repo-main/a.txt"], "x"); | |
| 39 | assert.equal(read["repo-main/empty"], ""); | |
| 40 | }); |