Mock Client

1

Am working with Spring Boot, and one of my main methods is as below.

@Autowired private AerospikeClient asClient;

public String readOTPFromCache(String input) { Policy policy = new Policy(); JSONObject jsonObject = new JSONObject(input); Key readKey = new Key(nameserver, otp, jsonObject.getString(PHONENUMBER));

Record record = asClient.get(policy, readKey);
/* No OTP in cache for this phoneNumber */
if (record==null) {
    return null;
}
else {
    return new JSONObject(record.bins).toString();
}

}

How do I mock the client ? I have seen a couple of discussions on this forum, but couldn’t make out. Any help on this would be greatly appreciated.

Thanks in advance.

2

My test class is:

public class OTPTest { @InjectMocks OTP otp = new OTP();

@Mock AerospikeClient client;

@Test
public void testAerospike() {
    IAerospikeClient client = Mockito.mock(IAerospikeClient.class);
    Map <String, Object> map = new HashMap<>();
    map.put("key", "value");
    Record record = new Record(map, 0, -1);
    Mockito.when(client.get(any(Policy.class), any(Key.class))).thenReturn(record);
    otp.readOTPFromCache("{\"phoneNumber\":\"xxx\"}");
}

}

But in the main class, at the point where I am doing asClient.get(policy, readKey), it is throwing a null pointer exception.

3

Hi, You have two “client” variables. One inside testAerospike() and the other at the class level. Mockito.when is initializing the one inside testAerospike(). The class level one is not being initialized.

4

Sure, thanks. Will fix it