Adding Angular and dependent packages for testing

third_party/pkg/angular/test/_specs_spec.dart

+library _specs_spec;
+
+import '_specs.dart';
+
+main() {
+  describe('renderedText', () {
+    it('should work on regular DOM nodes', () {
+      expect(renderedText($('<span>A<span>C</span></span><span>B</span>'))).toEqual('ACB');
+    });
+
+    it('should work with shadow DOM', () {
+      var elt = $('<div>DOM content</div>');
+      var shadow = elt[0].createShadowRoot();
+      shadow.setInnerHtml(
+          '<div>Shadow content</div><content>SHADOW-CONTENT</content>',
+          treeSanitizer: new NullTreeSanitizer());
+      expect(renderedText(elt)).toEqual('Shadow contentDOM content');
+    });
+
+    it('should ignore comments', () {
+      expect(renderedText($('<!--e--><span>A<span>C</span></span><span>B</span>'))).toEqual('ACB');
+    });
+  });
+
+
+  describe('jquery', () {
+    describe('html', () {
+      it('get', (){
+        var div = $('<div>');
+        expect(div.html()).toEqual('');
+      });
+
+      it('set', (){
+        var div = $('<div>');
+        expect(div.html('text')).toBe(div);
+        expect(div.html()).toEqual('text');
+      });
+    });
+  });
+}