@Test
public void testAddPublicKeysNull() {

    
    ChangeLogStore clogStore = new MockZMSFileChangeLogStore("/tmp/zts_server_unit_tests/zts_root",
            pkey, "0");
    DataStore store = new DataStore(clogStore, null);
    store.publicKeyCache.put("coretech.storage_0", "PublicKey0");
    
    store.addPublicKeys(null);
    assertEquals(store.publicKeyCache.size(), 1);
    assertTrue(store.publicKeyCache.containsKey("coretech.storage_0"));
}