Split up tests and add some heartbeats to try to make them not timeout.

pkg/watcher/test/directory_watcher_test.dart

 // Copyright (c) 2012, 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.
 
 import 'dart:async';
 import 'dart:io';
 
 import 'package:scheduled_test/scheduled_test.dart';
 import 'package:watcher/watcher.dart';
 
@@ skipping 72 matching lines @@
     writeFile("a.txt", contents: "after", updateModified: false);
     writeFile("b.txt", contents: "after");
     expectModifyEvent("b.txt");
   });
 
   test('watches files in subdirectories', () {
     createWatcher();
     writeFile("a/b/c/d/file.txt");
     expectAddEvent("a/b/c/d/file.txt");
   });
-
-  test('does not notify for changes when there were no subscribers', () {
-    // Note that this test doesn't rely as heavily on the test functions in
-    // utils.dart because it needs to be very explicit about when the event
-    // stream is and is not subscribed.
-    var watcher = createWatcher();
-
-    // Subscribe to the events.
-    var completer = new Completer();
-    var subscription = watcher.events.listen((event) {
-      expect(event.type, equals(ChangeType.ADD));
-      expect(event.path, endsWith("file.txt"));
-      completer.complete();
-    });
-
-    writeFile("file.txt");
-
-    // Then wait until we get an event for it.
-    schedule(() => completer.future);
-
-    // Unsubscribe.
-    schedule(() {
-      subscription.cancel();
-    });
-
-    // Now write a file while we aren't listening.
-    writeFile("unwatched.txt");
-
-    // Then start listening again.
-    schedule(() {
-      completer = new Completer();
-      subscription = watcher.events.listen((event) {
-        // We should get an event for the third file, not the one added while
-        // we weren't subscribed.
-        expect(event.type, equals(ChangeType.ADD));
-        expect(event.path, endsWith("added.txt"));
-        completer.complete();
-      });
-    });
-
-    // The watcher will have been cancelled and then resumed in the middle of
-    // its pause between polling loops. That means the second scan to skip
-    // what changed while we were unsubscribed won't happen until after that
-    // delay is done. Wait long enough for that to happen.
-    schedule(() => new Future.delayed(new Duration(seconds: 1)));
-
-    // And add a third file.
-    writeFile("added.txt");
-
-    // Wait until we get an event for the third file.
-    schedule(() => completer.future);
-
-    schedule(() {
-      subscription.cancel();
-    });
-  });
-
-
-  test('ready does not complete until after subscription', () {
-    var watcher = createWatcher(waitForReady: false);
-
-    var ready = false;
-    watcher.ready.then((_) {
-      ready = true;
-    });
-
-    // Should not be ready yet.
-    schedule(() {
-      expect(ready, isFalse);
-    });
-
-    // Subscribe to the events.
-    schedule(() {
-      var subscription = watcher.events.listen((event) {});
-
-      currentSchedule.onComplete.schedule(() {
-        subscription.cancel();
-      });
-    });
-
-    // Should eventually be ready.
-    schedule(() => watcher.ready);
-
-    schedule(() {
-      expect(ready, isTrue);
-    });
-  });
-
-  test('ready completes immediately when already ready', () {
-    var watcher = createWatcher(waitForReady: false);
-
-    // Subscribe to the events.
-    schedule(() {
-      var subscription = watcher.events.listen((event) {});
-
-      currentSchedule.onComplete.schedule(() {
-        subscription.cancel();
-      });
-    });
-
-    // Should eventually be ready.
-    schedule(() => watcher.ready);
-
-    // Now ready should be a future that immediately completes.
-    var ready = false;
-    schedule(() {
-      watcher.ready.then((_) {
-        ready = true;
-      });
-    });
-
-    schedule(() {
-      expect(ready, isTrue);
-    });
-  });
-
-  test('ready returns a future that does not complete after unsubscribing', () {
-    var watcher = createWatcher(waitForReady: false);
-
-    // Subscribe to the events.
-    var subscription;
-    schedule(() {
-      subscription = watcher.events.listen((event) {});
-    });
-
-    var ready = false;
-
-    // Wait until ready.
-    schedule(() => watcher.ready);
-
-    // Now unsubscribe.
-    schedule(() {
-      subscription.cancel();
-
-      // Track when it's ready again.
-      ready = false;
-      watcher.ready.then((_) {
-        ready = true;
-      });
-    });
-
-    // Should be back to not ready.
-    schedule(() {
-      expect(ready, isFalse);
-    });
-  });
 }