recover stress

Signed-off-by: Nxinxin13 <xinxin13@huawei.com>

ability/ability_runtime/formmanager/fa/formsystemtest_ets/formstresstest/entry/src/main/ets/test/FmsStress.test.ets

@@ -553,7 +553,7 @@ export default function test() {
 
             const systemstatus = await formHost.isSystemReady();
             console.info(`${tcNumber} systemstatus: ${JSON.stringify(systemstatus)}`);
-            expect(systemstatus).assertTrue()
+            expect(systemstatus).assertEqual(undefined);
             done();
         });
     });