@Test
public void testExport() throws IOException {

    PolicyExportAndImportController controller = new PolicyExportAndImportController();
    MockHttpServletRequest request = new MockHttpServletRequest();
    request.setBodyContent("{\n\"exportData\": {}\n}\n");
    MockHttpServletResponse response = new MockHttpServletResponse();
    // Test negative case
    controller.exportPolicy(request, response);
    assertEquals(response.getStatusCode(), HttpServletResponse.SC_OK);
}