Make Dom events run through zone tasks.

tests/html/event_subscription_specification_test.dart

+// Copyright (c) 2016, 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.
+
+library EventTaskZoneTest;
+
+import 'package:unittest/unittest.dart';
+import 'package:unittest/html_config.dart';
+import 'dart:async';
+import 'dart:html';
+
+// Tests event-subscription specifications.
+
+main() {
+  useHtmlConfiguration();
+
+  var defaultTarget = new Element.div();
+  var defaultOnData = (x) => null;
+
+  EventSubscriptionSpecification createSpec({useCapture, isOneShot}) {
+    return new EventSubscriptionSpecification(
+        name: "name",
+        target: defaultTarget,
+        useCapture: useCapture,
+        isOneShot: isOneShot,
+        onData: defaultOnData,
+        eventType: "eventType");
+  }
+
+  for (var useCapture in [true, false]) {
+    for (var isOneShot in [true, false]) {
+      var spec = createSpec(useCapture: useCapture, isOneShot: isOneShot);
+
+      test(
+          "EventSubscriptionSpecification - constructor "
+          "useCapture: $useCapture isOneShot: $isOneShot", () {
+        var replaced = spec.replace(eventType: 'replace-eventType');
+        expect(replaced.name, "name");
+        expect(replaced.target, defaultTarget);
+        expect(replaced.useCapture, useCapture);
+        expect(replaced.isOneShot, isOneShot);
+        expect(replaced.onData, equals(defaultOnData));
+        expect(replaced.eventType, "replace-eventType");
+      });
+
+      test(
+          "replace name "
+          "useCapture: $useCapture isOneShot: $isOneShot", () {
+        var replaced = spec.replace(name: 'replace-name');
+        expect(replaced.name, "replace-name");
+        expect(replaced.target, defaultTarget);
+        expect(replaced.useCapture, useCapture);
+        expect(replaced.isOneShot, isOneShot);
+        expect(replaced.onData, equals(defaultOnData));
+        expect(replaced.eventType, "eventType");
+      });
+
+      test(
+          "replace target "
+          "useCapture: $useCapture isOneShot: $isOneShot", () {
+        var replacementTarget = new Element.a();
+        var replaced = spec.replace(target: replacementTarget);
+        expect(replaced.name, "name");
+        expect(replaced.target, replacementTarget);
+        expect(replaced.useCapture, useCapture);
+        expect(replaced.isOneShot, isOneShot);
+        expect(replaced.onData, equals(defaultOnData));
+        expect(replaced.eventType, "eventType");
+      });
+
+      test(
+          "replace useCapture "
+              "useCapture: $useCapture isOneShot: $isOneShot", () {
+        var replaced = spec.replace(useCapture: !useCapture);
+        expect(replaced.name, "name");
+        expect(replaced.target, defaultTarget);
+        expect(replaced.useCapture, !useCapture);
+        expect(replaced.isOneShot, isOneShot);
+        expect(replaced.onData, equals(defaultOnData));
+        expect(replaced.eventType, "eventType");
+      });
+
+      test(
+          "replace isOneShot "
+              "useCapture: $useCapture isOneShot: $isOneShot", () {
+        var replaced = spec.replace(isOneShot: !isOneShot);
+        expect(replaced.name, "name");
+        expect(replaced.target, defaultTarget);
+        expect(replaced.useCapture, useCapture);
+        expect(replaced.isOneShot, !isOneShot);
+        expect(replaced.onData, equals(defaultOnData));
+        expect(replaced.eventType, "eventType");
+      });
+
+      test(
+          "replace onData "
+              "useCapture: $useCapture isOneShot: $isOneShot", () {
+        var replacementOnData = (x) {};
+        var replaced = spec.replace(onData: replacementOnData);
+        expect(replaced.name, "name");
+        expect(replaced.target, defaultTarget);
+        expect(replaced.useCapture, useCapture);
+        expect(replaced.isOneShot, isOneShot);
+        expect(replaced.onData, equals(replacementOnData));
+        expect(replaced.eventType, "eventType");
+      });
+
+      test(
+          "replace eventType "
+          "useCapture: $useCapture isOneShot: $isOneShot", () {
+        var replaced = spec.replace(eventType: 'replace-eventType');
+        expect(replaced.name, "name");
+        expect(replaced.target, defaultTarget);
+        expect(replaced.useCapture, useCapture);
+        expect(replaced.isOneShot, isOneShot);
+        expect(replaced.onData, equals(defaultOnData));
+        expect(replaced.eventType, "replace-eventType");
+      });
+    }
+  }
+}