diff --git a/src/components/expandableGroup/tests/ExpandableGroup.test.tsx b/src/components/expandableGroup/tests/ExpandableGroup.test.tsx
new file mode 100644
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+++ b/src/components/expandableGroup/tests/ExpandableGroup.test.tsx
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+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+import userEvent from '@testing-library/user-event';
+import { render, screen } from '@testing-library/react';
+import { ExpandableGroup } from '../ExpandableGroup';
+
+describe('ExpandableGroup', () => {
+    it('renders the header correctly', () => {
+        const headerText = 'Test Header';
+        render(<ExpandableGroup renderHeader={<div>{headerText}</div>} />);
+        const headerElement = screen.getByText(headerText);
+        expect(headerElement).toBeInTheDocument();
+    });
+
+    it('renders the children when expanded', () => {
+        const childrenText = 'Test Children';
+        render(
+            <ExpandableGroup renderHeader={<div>Header</div>}>
+                <div>{childrenText}</div>
+            </ExpandableGroup>
+        );
+        const childrenElement = screen.getByText(childrenText);
+        expect(childrenElement).toBeInTheDocument();
+    });
+
+    it('expands and collapses when clicked', async () => {
+        const user = userEvent.setup();
+        const headerText = 'Test Header';
+        const childrenText = 'Test Children';
+        render(
+            <ExpandableGroup renderHeader={<div>{headerText}</div>}>
+                <div>{childrenText}</div>
+            </ExpandableGroup>
+        );
+        const accordionSummary = screen.getByText(headerText);
+        const childrenTextDiv = screen.getByText(childrenText);
+        expect(childrenTextDiv).not.toBeVisible();
+
+        await user.click(accordionSummary);
+        expect(childrenTextDiv).toBeVisible();
+    });
+});