Add react ui test

Add react ui test to improve code coverage.

Issue-ID: CLAMP-509
Change-Id: Ic9c974a78ee453dddb8f985f3e9c9067f66e95d9
Signed-off-by: xuegao <xg353y@intl.att.com>
diff --git a/ui-react/src/components/dialogs/RefreshStatus.test.js b/ui-react/src/components/dialogs/RefreshStatus.test.js
new file mode 100644
index 0000000..cb782ad
--- /dev/null
+++ b/ui-react/src/components/dialogs/RefreshStatus.test.js
@@ -0,0 +1,72 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP CLAMP
+ * ================================================================================
+ * Copyright (C) 2019 AT&T Intellectual Property. All rights
+ *                             reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END============================================
+ * ===================================================================
+ *
+ */
+import React from 'react';
+import { shallow } from 'enzyme';
+import RefreshStatus from './RefreshStatus';
+import LoopCache from '../../api/LoopCache';
+import LoopActionService from '../../api/LoopActionService';
+
+describe('Verify RefreshStatus', () => {
+
+	const loopCache = new LoopCache({
+		"name": "LOOP_Jbv1z_v1_0_ResourceInstanceName1_tca"
+	});
+
+	it('Test refresh status failed', async () => {
+		const flushPromises = () => new Promise(setImmediate);
+		const historyMock = { push: jest.fn() };
+
+		const jsdomAlert = window.alert;
+		window.alert = () => {};
+		const component = shallow(<RefreshStatus loopCache={loopCache} history={historyMock} />)
+		await flushPromises();
+		component.update();
+
+		expect(historyMock.push.mock.calls[0]).toEqual([ '/']);
+		window.alert = jsdomAlert;
+	});
+
+	it('Test refresh status successful', async () => {
+		const flushPromises = () => new Promise(setImmediate);
+		const historyMock = { push: jest.fn() };
+		const updateLoopFunction = jest.fn();
+
+		LoopActionService.refreshStatus = jest.fn().mockImplementation(() => {
+			return Promise.resolve({
+				ok: true,
+				status: 200,
+				json: () => {}
+			});
+		});
+		const jsdomAlert = window.alert;
+		window.alert = () => {};
+		const component = shallow(<RefreshStatus loopCache={loopCache} 
+						loopAction="submit" history={historyMock} updateLoopFunction={updateLoopFunction} />)
+		await flushPromises();
+		component.update();
+
+		expect(historyMock.push.mock.calls[0]).toEqual([ '/']);
+		window.alert = jsdomAlert;
+	});
+
+});