Improve the test cases of Worker module

issue:https://gitee.com/openharmony/xts_acts/issues/I5CQ1B

Describe:The Worker thread created by modifying each test case can be
released.
Signed-off-by: Nyqhan <hanyuqing2@huawei.com>

compileruntime/worker_lib_standard/src/main/js/default/workers/worker_0121.js

@@ -25,7 +25,10 @@ parentPort.onmessage = function(e) {
   switch(data.type) {
     case "new":
       ss = new worker.Worker("workers/worker_0122.js");
-      parentPort.postMessage(ss != null)
+      ss.terminate();
+      ss.onexit = function() {
+        parentPort.postMessage(ss != null);
+      }
       break;
     default:
       break;

compileruntime/worker_lib_standard/src/main/js/default/workers/worker_0122.js

@@ -21,5 +21,5 @@ var backValue = undefined;
 var flag = false;
 
 parentPort.onmessage = function(e) {
-  console.log("worker:: thrid worker onmessage")
+  console.info("worker:: thrid worker onmessage")
 }
\ No newline at end of file

compileruntime/worker_lib_standard/src/main/js/default/workers/worker_015.js

@@ -25,6 +25,9 @@ parentPort.onmessage = function(e) {
   switch(data.type) {
     case "new":
       ss = new worker.Worker("workers/worker_0151.js");
+      ss.onexit = function() {
+        parentPort.postMessage(backValue); // 16
+      }
       ss.onmessage = function(ee) {
         backValue = ee.data; // 16
         flag = true;
@@ -34,7 +37,7 @@ parentPort.onmessage = function(e) {
     case "wait":
       ss.postMessage({type: "wait"});
       if (flag) {
-        parentPort.postMessage(backValue); // 16
+        ss.terminate();
       }
       break;
     default:

compileruntime/worker_lib_standard/src/main/js/default/workers/worker_0151.js

@@ -25,6 +25,9 @@ parentPort.onmessage = function(e) {
   switch(data.type) {
     case "new":
       ss = new worker.Worker("workers/worker_0152.js");
+      ss.onexit = function() {
+        parentPort.postMessage(backValue); // 16
+      }
       ss.onmessage = function(ee) {
         backValue = ee.data;
         flag = true;
@@ -33,7 +36,7 @@ parentPort.onmessage = function(e) {
       break;
     case "wait":
       if (flag) {
-        parentPort.postMessage(backValue); // 16
+        ss.terminate();
       }
       break;
     default:

compileruntime/worker_lib_standard/src/main/js/test/Worker.test.js

@@ -1015,6 +1015,10 @@ describe('workerTest', function () {
         let res = 0
         let flag = false
 
+        ss.onexit = function() {
+            flag = true
+        }
+
         ss.onmessageerror = function (e) {
             flag = true
             res++
@@ -1025,6 +1029,12 @@ describe('workerTest', function () {
         while (!flag) {
             await promiseCase()
         }
+
+        flag = false
+        ss.postMessage("terminate")
+        while (!flag) {
+            await promiseCase()
+        }
         expect(res).assertEqual(1)
         done()
     })
@@ -1264,12 +1274,15 @@ describe('workerTest', function () {
         let ss = new worker.Worker("workers/worker_015.js")
         let flag = false
         let res = undefined
+        let isTerminate = false
 
-        ss.onmessage = function (e) {
+        ss.onexit = function() {
+            isTerminate = true
+        }
+        ss.onmessage = function(e) {
             flag = true
             res = e.data
         }
-
         ss.onerror = function(ee) {
             console.log("worker:: " + ee.message)
         }
@@ -1279,6 +1292,11 @@ describe('workerTest', function () {
             ss.postMessage({type: "wait"})
             await promiseCase()
         }
+        ss.terminate()
+        while (!isTerminate) {
+            await promiseCase()
+        }
+
         expect(res).assertEqual(16)
 
         done()
@@ -1294,8 +1312,13 @@ describe('workerTest', function () {
         let ss = new worker.Worker("workers/worker_011.js")
         let flag = false
         let res = undefined
+        let isTerminate = false
 
-        ss.onmessage = function (e) {
+        ss.onexit = function() {
+            isTerminate = true
+        }
+
+        ss.onmessage = function(e) {
             flag = true
             res = e.data
         }
@@ -1317,6 +1340,11 @@ describe('workerTest', function () {
             await promiseCase()
         }
 
+        ss.terminate()
+        while (!isTerminate) {
+            await promiseCase()
+        }
+
         expect(res).assertEqual("terminate")
         done()
     })