Button XTS fail修复

Signed-off-by: Nzhangxiao150 <zhangxiao150@huawei.com>
Change-Id: I395ef8982f56292bb73e4d871aa8b39e216029d4

arkui/ace_ets_components_ux/ace_ets_component_button/src/main/ets/test/button.ets

@@ -810,7 +810,7 @@ export default function buttonTest() {
           let labelStyle = JSON.parse(obj.$attrs.labelStyle)
           console.info("ArkUX_Stage_Button_LabelStyle_2700 component obj.$attrs.labelStyle is: " +
                        JSON.stringify(labelStyle));
-          expect(labelStyle.overflow).assertEqual("TextOverflow.Clip");
+          expect(labelStyle.overflow).assertEqual("TextOverflow.Ellipsis");
           console.info('ArkUX_Stage_Button_LabelStyle_2700 END ');
         } catch(err) {
           expect().assertFail()
@@ -901,7 +901,7 @@ export default function buttonTest() {
           let labelStyle = JSON.parse(obj.$attrs.labelStyle)
           console.info("ArkUX_Stage_Button_LabelStyle_3000 component obj.$attrs.labelStyle is: " +
                        JSON.stringify(labelStyle));
-          expect(labelStyle.overflow).assertEqual("TextOverflow.Clip");
+          expect(labelStyle.overflow).assertEqual("TextOverflow.Ellipsis");
           console.info('ArkUX_Stage_Button_LabelStyle_3000 END ');
         } catch(err) {
           expect().assertFail()