Fixes #39477: Replace enzyme test in ImpersonateIcon with RTL

webpack/assets/javascripts/react_app/components/Layout/components/ImpersonateIcon/ImpersonateIcon.test.js

@@ -1,13 +1,54 @@
-import { testComponentSnapshotsWithFixtures } from 'foremanReact/common/testHelpers';
+import React from 'react';
+import { render, screen } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import '@testing-library/jest-dom';
 
 import ImpersonateIcon from './ImpersonateIcon';
 
-const fixtures = {
-  'should render': {
-    stopImpersonationUrl: '/stop_impersonation',
-    stopImpersonating: () => {},
-  },
-};
+// Render the tooltip's child directly; the Popper's async updates otherwise
+// fire after the click handler and trip the strict console.error setup.
+jest.mock('@patternfly/react-core', () => ({
+  ...jest.requireActual('@patternfly/react-core'),
+  Tooltip: ({ children }) => children,
+}));
 
-describe('ImpersonateIcon', () =>
-  testComponentSnapshotsWithFixtures(ImpersonateIcon, fixtures));
+const modalText =
+  'You are about to stop impersonating other user. Are you sure?';
+
+const renderIcon = (stopImpersonating = () => {}) =>
+  render(
+    <ImpersonateIcon
+      stopImpersonationUrl="/stop_impersonation"
+      stopImpersonating={stopImpersonating}
+    />
+  );
+
+describe('ImpersonateIcon', () => {
+  it('renders the icon with the confirmation modal closed', () => {
+    const { container } = renderIcon();
+
+    expect(container.querySelector('span.nav-item-iconic')).toBeInTheDocument();
+    expect(screen.queryByText(modalText)).not.toBeInTheDocument();
+  });
+
+  it('opens the confirmation modal when the icon is clicked', async () => {
+    const { container } = renderIcon();
+
+    await userEvent.click(container.querySelector('span.nav-item-iconic'));
+
+    expect(screen.getByText(modalText)).toBeInTheDocument();
+    expect(screen.getByRole('button', { name: 'Confirm' })).toBeInTheDocument();
+    expect(screen.getByRole('button', { name: 'Cancel' })).toBeInTheDocument();
+  });
+
+  it('calls stopImpersonating with the url when confirmed', async () => {
+    const stopImpersonating = jest.fn();
+    const { container } = renderIcon(stopImpersonating);
+
+    await userEvent.click(container.querySelector('span.nav-item-iconic'));
+    await userEvent.click(screen.getByRole('button', { name: 'Confirm' }));
+
+    expect(stopImpersonating).toHaveBeenCalledTimes(1);
+    expect(stopImpersonating).toHaveBeenCalledWith('/stop_impersonation');
+  });
+});