swarm/test/file_actor_test.dart

import 'dart:io';
import 'dart:typed_data';
import 'package:actors/actors.dart';
import 'package:swarm/swarm.dart';
import 'package:test/test.dart';

void main() {
  group('FileActor', () {
    late Actor<FileMessage, FileResult> actor;
    late Directory tempDir;

    setUp(() async {
      actor = Actor.create(FileActor.new);
      tempDir = await Directory.systemTemp.createTemp('swarm_test_');
    });

    tearDown(() async {
      await actor.close();
      await tempDir.delete(recursive: true);
    });

    test('saves a file', () async {
      final path = '${tempDir.path}/hello.txt';
      final result = await actor.send(SaveFile(path, 'hello world'));
      expect(result, isA<FileSaved>());
    });

    test('loads a saved file', () async {
      final path = '${tempDir.path}/hello.txt';
      await actor.send(SaveFile(path, 'hello world'));
      final result = await actor.send(LoadFile(path));
      expect(result, isA<FileLoaded>());
      expect((result as FileLoaded).content, equals('hello world'));
    });

    test('load throws PathNotFoundException for missing file', () {
      expect(
        actor.send(LoadFile('${tempDir.path}/nonexistent.txt')),
        throwsA(isA<PathNotFoundException>()),
      );
    });

    test('saves binary file', () async {
      final path = '${tempDir.path}/data.bin';
      final bytes = Uint8List.fromList([0x00, 0xFF, 0x89, 0x50, 0x4E, 0x47]);
      final result = await actor.send(SaveBinaryFile(path, bytes));
      expect(result, isA<FileSaved>());
    });

    test('loads a saved binary file', () async {
      final path = '${tempDir.path}/data.bin';
      final bytes = Uint8List.fromList([0x00, 0xFF, 0x89, 0x50, 0x4E, 0x47]);
      await actor.send(SaveBinaryFile(path, bytes));
      final result = await actor.send(LoadBinaryFile(path));
      expect(result, isA<BinaryFileLoaded>());
      expect((result as BinaryFileLoaded).bytes, equals(bytes));
    });
  });
}