fix: 按照comment修改

test/utils.js

@@ -2,8 +2,9 @@
     BI.Test = {};
     _.extend(BI.Test, {
         createWidget: function (widgetJson) {
-            var widget = BI.createWidget(widgetJson);
-            widget._isRoot = true;
+            var widget = BI.createWidget(BI.extend(widgetJson, {
+                root: true
+            }));
             widget._mount();
             widget.element.appendTo("body");
             return widget;

test/widget/button.test.js

@@ -16,7 +16,7 @@ describe("ButtonTest", function () {
         });
         BI.nextTick(function () {
             button.element.click();
-            expect(button.element[0].querySelector(".bi-text").textContent).to.equal("click");
+            expect(button.element.children(".bi-text").text()).to.equal("click");
             done();
         });
 

test/widget/text.test.js

@@ -11,7 +11,7 @@ describe("TextTest", function () {
             type: "bi.text"
         });
         text.setText("AAA");
-        expect(text.element[0].textContent).to.equal("AAA");
+        expect(text.element.text()).to.equal("AAA");
     });
 
     /**
@@ -22,6 +22,6 @@ describe("TextTest", function () {
             type: "bi.text"
         });
         text.setStyle({"color": "red"});
-        expect(text.element[0].style.color).to.equal("red");
+        expect(text.element.getStyle("color")).to.equal("rgb(255, 0, 0)");
     });
 });