Update

2026-07-24 20:29:23 +02:00
commit 66060348da
107 changed files with 14771 additions and 0 deletions
@@ -0,0 +1,41 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import zlib from 'node:zlib';
+import zipModule from '../src/shared/zip-writer.cjs';
+
+const { createZip, crc32 } = zipModule;
+
+function unzipLocalEntries(buffer) {
+  const entries = new Map();
+  let offset = 0;
+  while (offset + 4 <= buffer.length && buffer.readUInt32LE(offset) === 0x04034b50) {
+    const method = buffer.readUInt16LE(offset + 8);
+    const expectedCrc = buffer.readUInt32LE(offset + 14);
+    const compressedSize = buffer.readUInt32LE(offset + 18);
+    const nameLength = buffer.readUInt16LE(offset + 26);
+    const extraLength = buffer.readUInt16LE(offset + 28);
+    const nameStart = offset + 30;
+    const dataStart = nameStart + nameLength + extraLength;
+    const name = buffer.subarray(nameStart, nameStart + nameLength).toString('utf8');
+    const compressed = buffer.subarray(dataStart, dataStart + compressedSize);
+    const data = method === 8 ? zlib.inflateRawSync(compressed) : compressed;
+    assert.equal(crc32(data), expectedCrc);
+    entries.set(name, data);
+    offset = dataStart + compressedSize;
+  }
+  return entries;
+}
+
+test('creates a valid deflated ZIP with UTF-8 entry names and CRCs', () => {
+  const archive = createZip([
+    { name: 'manifest.json', data: '{"ok":true}\n' },
+    { name: 'logs/diagnostics.jsonl', data: Buffer.from('hello diagnostics\n') },
+    { name: 'unicode/één.txt', data: 'veilig' }
+  ]);
+  assert.equal(archive.readUInt32LE(0), 0x04034b50);
+  assert.equal(archive.readUInt32LE(archive.length - 22), 0x06054b50);
+  const entries = unzipLocalEntries(archive);
+  assert.equal(entries.size, 3);
+  assert.equal(entries.get('manifest.json').toString(), '{"ok":true}\n');
+  assert.equal(entries.get('unicode/één.txt').toString(), 'veilig');
+});