sravani-revuri commented on code in PR #11417:
URL: https://github.com/apache/ozone/pull/11417#discussion_r4245508081


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hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/__tests__/containers/Containers.test.tsx:
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@@ -0,0 +1,222 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+import React from 'react';
+import { fireEvent, render, screen, waitFor } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { http, HttpResponse } from 'msw';
+import { vi } from 'vitest';
+
+import Containers from '@/v2/pages/containers/containers';
+import * as commonUtils from '@/utils/common';
+import { ClusterState } from 
'@tests/mocks/overviewMocks/overviewResponseMocks';
+import { containersServer } from 
'@tests/mocks/containerMocks/containersServer';
+import * as containerMocks from 
'@tests/mocks/containerMocks/containerResponseMocks';
+import { containerLocators, searchInputLocator } from 
'@tests/locators/locators';
+import { waitForContainerRows } from '@tests/utils/containers.utils';
+
+vi.spyOn(commonUtils, 'showDataFetchError');
+
+vi.mock('@/components/autoReloadPanel/autoReloadPanel', () => ({
+  default: () => <div data-testid="auto-reload-panel" />,
+}));
+vi.mock('@/v2/components/select/multiSelect.tsx', () => ({
+  default: ({ onChange }: { onChange: Function }) => (
+    <select data-testid="multi-select" onChange={(e) => 
onChange(e.target.value)}>
+      <option value="containerID">Container ID</option>
+      <option value="pipelineID">Pipeline ID</option>
+    </select>
+  ),
+}));
+
+vi.mock('@/v2/hooks/useAPIData.hook', async (importOriginal) => {
+  const actual = await importOriginal<typeof 
import('@/v2/hooks/useAPIData.hook')>();
+  return {
+    ...actual,
+    useApiData: <T,>(url: string, defaultValue: T, options = {}) => {
+      if (url === '/api/v1/clusterState') {

Review Comment:
   The server already handles /api/v1/clusterState and the test assertions do 
pass, but vitest run reports unhandled CanceledErrors on that URL without this 
check . Containers fetches clusterState twice on mount (initialFetch: true + 
clusterState.refetch() from autoReload), so the second request aborts the first 
and that rejection isn’t caught. I checked out how pipelines is doing it and it 
uses initialFetch: false instead hence it doesn't face this problem.
   
   I've currently added a comment to justify this, happy to drop / modify in a 
follow-up accordingly.
   
   <img width="1144" height="242" alt="Image" 
src="https://github.com/user-attachments/assets/9a96a56d-387e-4133-a9eb-760a74b4a772";
 />



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