@Test
public void testStoreFailure() {

    when(store.createTaskRelocationStatuses(anyList())).thenReturn(Mono.error(new RuntimeException("Simulated store error")));
    TaskRelocationStatus relocationStatus = TaskRelocationPlanGenerator.oneSuccessfulRelocation();
    step.storeTaskEvictionResults(Collections.singletonMap(relocationStatus.getTaskId(), relocationStatus));
    verify(store, times(1)).createTaskRelocationStatuses(anyList());
}