Adding Angular and dependent packages for testing

third_party/pkg/angular/lib/mock/module.dart

+library angular.mock;
+
+import 'dart:async' as dart_async;
+import 'dart:collection' show ListBase;
+import 'dart:convert' show JSON;
+import 'dart:html';
+import 'package:angular/angular.dart';
+import 'package:angular/utils.dart' as utils;
+import 'package:js/js.dart' as js;
+import 'package:di/di.dart';
+import 'package:di/dynamic_injector.dart';
+import 'package:unittest/mock.dart';
+
+export 'zone.dart';
+
+part 'debug.dart';
+part 'exception_handler.dart';
+part 'http_backend.dart';
+part 'log.dart';
+part 'probe.dart';
+part 'test_bed.dart';
+part 'mock_window.dart';
+part 'test_injection.dart';
+
+/**
+ * Use in addition to [AngularModule] in your tests.
+ *
+ * [AngularMockModule] provides:
+ *
+ *   - [TestBed]
+ *   - [Probe]
+ *   - [MockHttpBackend] instead of [HttpBackend]
+ *   - [Logger]
+ *   - [RethrowExceptionHandler] instead of [ExceptionHandler]
+ *   - [NgZone] which displays errors to console;
+ */
+class AngularMockModule extends Module {
+  AngularMockModule() {
+    type(ExceptionHandler, implementedBy: RethrowExceptionHandler);
+    type(TestBed);
+    type(Probe);
+    type(Logger);
+    type(MockHttpBackend);
+    factory(HttpBackend, (Injector i) => i.get(MockHttpBackend));
+    factory(NgZone, (_) {
+      NgZone zone = new NgZone();
+      zone.onError = (dynamic e, dynamic s, LongStackTrace ls) => dump('EXCEPTION: $e\n$s\n$ls');
+      return zone;
+    });
+    type(Window, implementedBy: MockWindow);
+  }
+}