OHRI-2106 Fix tests on MambaReport (#1759)

* OHRI-2106 fixed failing tests

* cleanup

* more cleanup

packages/esm-commons-lib/src/tests/mambaReports.test.ts

@@ -0,0 +1,34 @@
+import { fetchMambaReportData } from '../api/api';
+import { openmrsFetch } from '@openmrs/esm-framework';
+import '@testing-library/jest-dom';
+
+jest.mock('@openmrs/esm-framework');
+
+describe('fetchMambaReportData', () => {
+  afterEach(() => {
+    jest.clearAllMocks();
+  });
+
+  test('fetches report data successfully and parses result', async () => {
+    const reportId = 'test-report-id';
+
+    const mockResponse: any = {
+      data: {
+        results: [
+          {
+            record: [{ value: '0' }],
+          },
+        ],
+      },
+      json: jest.fn().mockResolvedValue({}),
+    };
+
+    (openmrsFetch as jest.Mock).mockResolvedValueOnce(mockResponse);
+
+    const result = await fetchMambaReportData(reportId);
+
+    expect(openmrsFetch).toHaveBeenCalledWith(`ws/rest/v1/mamba/report?report_id=${reportId}`);
+    expect(mockResponse.json).toHaveBeenCalled();
+    expect(result).toEqual(0);
+  });
+});