Replace setImmediate with setTimeout

Author: tkrotoff

packages/react-form-with-constraints-bootstrap/src/Bootstrap.test.tsx

@@ -5,7 +5,7 @@ import { dBlock, formatHTML, key, keys } from '../../react-form-with-constraints
 import { validValidityState } from '../../react-form-with-constraints/src/InputElementMock';
 import { SignUp } from './SignUp';
 
-const flushPromises = () => new Promise(resolve => setImmediate(resolve));
+const flushPromises = () => new Promise(resolve => setTimeout(resolve));
 
 const error = 'class="invalid-feedback"';
 const warning = 'class="warning-feedback"';

packages/react-form-with-constraints-material-ui/src/Material.test.tsx

@@ -6,7 +6,7 @@ import { validValidityState } from '../../react-form-with-constraints/src/InputE
 import { FormControl, FormWithConstraints } from '.';
 import { SignUp } from './SignUp';
 
-const flushPromises = () => new Promise(resolve => setImmediate(resolve));
+const flushPromises = () => new Promise(resolve => setTimeout(resolve));
 
 const error = 'class="FieldFeedbackWS-root-\\d+ error"';
 const warning = 'class="FieldFeedbackWS-root-\\d+ warning"';