[lua tests]fix evalJs 'alert' frozen (#19249)

Author: PatriceJiang

tests/cpp-tests/Classes/UITest/CocoStudioGUITest/UIWebViewTest/UIWebViewTest.cpp

@@ -144,7 +144,7 @@ bool WebViewTest::init()
         evalJsBtn->setPosition(VisibleRect::center() - Vec2( _webView->getContentSize().width/2 +
                                                     evalJsBtn->getContentSize().width/2 + 10,-50 ));
         evalJsBtn->addClickEventListener([=](Ref*){
-            _webView->evaluateJS("alert(\"hello\")");
+            _webView->evaluateJS("setTimeout(function(){alert(\"hello\");}, 0)");
         });
         evalJsBtn->setName("evalJs");
         this->addChild(evalJsBtn);

tests/lua-tests/src/WebViewTest/WebViewTest.lua

@@ -103,7 +103,7 @@ function WebViewTest:init()
     evalJsBtn:setTitleText("Evaluate JS")
     evalJsBtn:setPosition(winSize.width / 2 - self._webView:getContentSize().width/2 - evalJsBtn:getContentSize().width/2 - 30, winSize.height / 2 - 50)
     evalJsBtn:addClickEventListener(function(sender)
-        self._webView:evaluateJS("alert(\"hello\")")
+        self._webView:evaluateJS("setTimeout(function(){alert(\"hello\");}, 0);")
     end)
     self:addChild(evalJsBtn)
 end

tests/lua-tests/src/mainMenu.lua

@@ -200,11 +200,13 @@ function CreateTestMenu()
     CloseMenu:addChild(CloseItem)
     menuLayer:addChild(CloseMenu)
 
+    local targetPlatform = cc.Application:getInstance():getTargetPlatform()       
+
     -- add menu items for tests
     local MainMenu = cc.Menu:create()
     local index = 0
     local obj = nil
-    for index, obj in pairs(_allTests) do
+    for index, obj in pairs(_allTests) do    
         local testLabel = cc.Label:createWithTTF(index .. ". " .. obj.name, s_arialPath, 24)
         testLabel:setAnchorPoint(cc.p(0.5, 0.5))
         local testMenuItem = cc.MenuItemLabel:create(testLabel)