Spring Cache is not being populated in test - spring-boot

Question

I have the following test which is trying to assert that data has been added to spring cache.
#Slf4j
#ExtendWith(SpringExtension.class)
#SpringBootTest(classes = MainSpringApplication.class)
class NamesServiceCacheTest {
#Mock
ApiClient apiClientMock;
NamesServiceImpl sut;
#Autowired
private CacheManager cacheManager;
#BeforeEach
void setUp() {
sut = new NamesServiceImpl(apiClientMock);
}
#Configuration
#EnableCaching
static class Config {
#Bean
public CacheManager cacheManager() {
SimpleCacheManager cacheManager = new SimpleCacheManager();
List<Cache> caches = new ArrayList<>();
caches.add(new ConcurrentMapCache("namesCache"));
cacheManager.setCaches(caches);
return cacheManager;
}
}
#Test
void testResponseGoesIntoCache() {
when(apiClientMock.getNamesFromXApi()).thenReturn(getMockedResponse());
sut.getNames();
var cache = cacheManager.getCache("namesCache"); //<--- if I debug here, the cache is empty
assertEquals(getMockedResponse(), cache.get("namesCache").get());
}
However, with this test nothing is added to the cache. Is this because I'm not loading the cacheManager on the spring context correctly?
Is it due to the extends CachingConfigurerSupport which is on the config (see below)?
Here is the rest of the config:
#Configuration
#EnableCaching
public class CachingConfig extends CachingConfigurerSupport {
#Bean
public CacheManager cacheManager() {
SimpleCacheManager cacheManager = new SimpleCacheManager();
List<Cache> caches = new ArrayList<>();
caches.add(new ConcurrentMapCache("namesCache"));
cacheManager.setCaches(caches);
return cacheManager;
}
}
And the service:
#Slf4j
#Service
#RequiredArgsConstructor
public class NamesServiceImpl implements NameService {
private final ApiClient apiClient;
#Override
#Cacheable("namesCache")
public Mono<GetInstitutionsResponse> getNames()() {
return apiClient.getNamesFromXApi();
}
}
Any Ideas?