wip. test checking

Author: GoodDayForSurf

packages/devextreme-cli/testing/app-template.test.shared.js

@@ -49,6 +49,12 @@ module.exports = (env, { port, urls } = { port: '8080', urls: {} }) => {
                                 console.log('----beforeAll---->');
                                 await devServer.setLayout(layout);
                                 await devServer.setTheme(theme);
+                                await waitOn({
+                                    reverse: true,
+                                    resources: [appUrl],
+                                    timeout: 30000,
+                                    interval: 100
+                                });
                                 await devServer.build();
                                 await devServer.start();
                                 await waitOn({
@@ -58,6 +64,7 @@ module.exports = (env, { port, urls } = { port: '8080', urls: {} }) => {
                                 });
                             } catch(e) {
                                 // NOTE jest@27 will fail test, but jest@26 - not
+                                console.log('-----ERROR----->', e);
                                 throw new Error(e);
                             }
                         });