// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@TestOn('mac-os')

import 'package:test/test.dart';
import 'package:watcher/src/directory_watcher/mac_os.dart';
import 'package:watcher/watcher.dart';

import 'shared.dart';
import '../utils.dart';

void main() {
  watcherFactory = (dir) => new MacOSDirectoryWatcher(dir);

  sharedTests();

  test('DirectoryWatcher creates a MacOSDirectoryWatcher on Mac OS', () {
    expect(
        new DirectoryWatcher('.'), new isInstanceOf<MacOSDirectoryWatcher>());
  });

  test(
      'does not notify about the watched directory being deleted and '
      'recreated immediately before watching', () async {
    createDir("dir");
    writeFile("dir/old.txt");
    deleteDir("dir");
    createDir("dir");

    await startWatcher(path: "dir");
    writeFile("dir/newer.txt");
    await expectAddEvent("dir/newer.txt");
  });

  test('emits events for many nested files moved out then immediately back in',
      () async {
    withPermutations(
        (i, j, k) => writeFile("dir/sub/sub-$i/sub-$j/file-$k.txt"));

    await startWatcher(path: "dir");

    renameDir("dir/sub", "sub");
    renameDir("sub", "dir/sub");

    await allowEither(() {
      inAnyOrder(withPermutations(
          (i, j, k) => isRemoveEvent("dir/sub/sub-$i/sub-$j/file-$k.txt")));

      inAnyOrder(withPermutations(
          (i, j, k) => isAddEvent("dir/sub/sub-$i/sub-$j/file-$k.txt")));
    }, () {
      inAnyOrder(withPermutations(
          (i, j, k) => isModifyEvent("dir/sub/sub-$i/sub-$j/file-$k.txt")));
    });
  });
}