85 lines
2.1 KiB
Dart
85 lines
2.1 KiB
Dart
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// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'dart:async';
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import 'package:test/test.dart';
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import '../utils.dart';
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void sharedTests() {
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test('ready does not complete until after subscription', () async {
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var watcher = createWatcher();
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var ready = false;
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unawaited(watcher.ready.then((_) {
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ready = true;
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}));
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await pumpEventQueue();
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expect(ready, isFalse);
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// Subscribe to the events.
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var subscription = watcher.events.listen((event) {});
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await watcher.ready;
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// Should eventually be ready.
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expect(watcher.isReady, isTrue);
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await subscription.cancel();
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});
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test('ready completes immediately when already ready', () async {
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var watcher = createWatcher();
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// Subscribe to the events.
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var subscription = watcher.events.listen((event) {});
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// Allow watcher to become ready
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await watcher.ready;
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// Ensure ready completes immediately
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expect(
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watcher.ready.timeout(
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const Duration(milliseconds: 0),
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onTimeout: () => throw StateError('Does not complete immediately'),
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),
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completes,
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);
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await subscription.cancel();
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});
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test('ready returns a future that does not complete after unsubscribing',
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() async {
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var watcher = createWatcher();
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// Subscribe to the events.
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var subscription = watcher.events.listen((event) {});
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// Wait until ready.
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await watcher.ready;
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// Now unsubscribe.
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await subscription.cancel();
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// Should be back to not ready.
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expect(watcher.ready, doesNotComplete);
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});
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test('ready completes even if directory does not exist', () async {
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var watcher = createWatcher(path: 'does/not/exist');
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// Subscribe to the events (else ready will never fire).
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var subscription = watcher.events.listen((event) {}, onError: (error) {});
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// Expect ready still completes.
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await watcher.ready;
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// Now unsubscribe.
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await subscription.cancel();
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});
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}
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