Fix rename event dispatch

src/emulation/promises.ts

@@ -207,7 +207,7 @@
 	/**
 	 * @todo Implement
 	 */
 	public readLines(options?: promises.CreateReadStreamOptions): ReadlineInterface {
 		throw ErrnoError.With('ENOSYS', this.file.path, 'FileHandle.readLines');
 	}
 
@@ -395,6 +395,7 @@
 		if (src.mountPoint == dst.mountPoint) {
 			await src.fs.rename(src.path, dst.path);
 			emitChange('rename', oldPath.toString());
+			emitChange('change', newPath.toString());
 			return;
 		}
 		await writeFile(newPath, await readFile(oldPath));
@@ -889,7 +890,7 @@
  */
 export async function realpath(path: fs.PathLike, options: fs.BufferEncodingOption): Promise<Buffer>;
 export async function realpath(path: fs.PathLike, options?: fs.EncodingOption | BufferEncoding): Promise<string>;
 export async function realpath(path: fs.PathLike, options?: fs.EncodingOption | BufferEncoding | fs.BufferEncodingOption): Promise<string | Buffer> {
 	path = normalizePath(path);
 	const { base, dir } = parse(path);
 	const lpath = join(dir == '/' ? '/' : await (cache.paths.get(dir) || realpath(dir)), base);
@@ -1055,7 +1056,7 @@
  * @returns A `Dir` object representing the opened directory.
  * @todo Use options
  */
 export function opendir(path: fs.PathLike, options?: fs.OpenDirOptions): Promise<Dir> {
 	path = normalizePath(path);
 	return Promise.resolve(new Dir(path));
 }

tests/fs/watch.test.ts

@@ -71,18 +71,29 @@ suite('Watch Features', () => {
 	});
 
 	test('fs.watch should detect file renames', async () => {
-		const oldFile = `${testDir}/oldFile.txt`;
-		const newFile = `${testDir}/newFile.txt`;
+		const oldFileName = `oldFile.txt`;
+		const newFileName = `newFile.txt`;
+		const oldFile = `${testDir}/${oldFileName}`;
+		const newFile = `${testDir}/${newFileName}`;
 
 		await fs.promises.writeFile(oldFile, 'Some content');
+		const oldFileResolver = Promise.withResolvers<void>();
+		const newFileResolver = Promise.withResolvers<void>();
 
+		const fileResolvers: Record<string, { resolver: PromiseWithResolvers<void>; eventType: string }> = {
+			[oldFileName]: { resolver: oldFileResolver, eventType: 'rename' },
+			[newFileName]: { resolver: newFileResolver, eventType: 'change' },
+		};
 		using watcher = fs.watch(testDir, (eventType, filename) => {
-			assert.strictEqual(eventType, 'rename');
-			assert.strictEqual(filename, 'oldFile.txt');
+			const resolver = fileResolvers[filename];
+			assert.notEqual(resolver, undefined); // should have a resolver so file is expected
+			assert.strictEqual(eventType, resolver.eventType);
+			resolver.resolver.resolve();
 		});
 
 		// Rename the file to trigger the event
 		await fs.promises.rename(oldFile, newFile);
+		await Promise.all([newFileResolver.promise, oldFileResolver.promise]);
 	});
 
 	test('fs.watch should detect file deletions', async () => {