add test (#1979)

kafka-ui-react-app/src/components/KsqlDb/List/__test__/ListItem.spec.tsx

@@ -0,0 +1,38 @@
+import React from 'react';
+import { Route, Router } from 'react-router-dom';
+import { createMemoryHistory } from 'history';
+import { clusterKsqlDbPath } from 'lib/paths';
+import { render } from 'lib/testHelpers';
+import { screen } from '@testing-library/dom';
+import ListItem from 'components/KsqlDb/List/ListItem';
+
+const history = createMemoryHistory();
+const clusterName = 'local';
+
+const renderComponent = ({
+  accessors,
+  data,
+}: {
+  accessors: string[];
+  data: Record<string, string>;
+}) => {
+  history.push(clusterKsqlDbPath(clusterName));
+  render(
+    <Router history={history}>
+      <Route path={clusterKsqlDbPath(':clusterName')}>
+        <ListItem accessors={accessors} data={data} />
+      </Route>
+    </Router>
+  );
+};
+
+describe('KsqlDb List Item', () => {
+  it('renders placeholder on one data', async () => {
+    renderComponent({
+      accessors: ['accessors'],
+      data: { accessors: 'accessors text' },
+    });
+
+    expect(screen.getByText('accessors text')).toBeInTheDocument();
+  });
+});