@Operation(summary = "Get BVD metadata")
    @GetMapping(value = "/bvd/metadata", produces = MediaType.APPLICATION_XML_VALUE)
    @ResponseBody
    public String bvdMetadata() throws MetadataException {
        logger.debug("Receive BVD metadata request!");
        return bvdMetadataService.getMetadata();
    }
@Test
    public void bvdMetadataTest() throws MetadataException {
        String bvdMetadata = "bvdMetadata";
        when(bvdMetadataServiceMock.getMetadata()).thenReturn(bvdMetadata);

        String result = metadataControllerMock.bvdMetadata();

        assertNotNull(result);
        assertEquals(bvdMetadata, result);
        verify(bvdMetadataServiceMock, times(1)).getMetadata();
    }