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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2020/03/31 07:37:00 UTC
[GitHub] [pulsar] prasanthkumar2392 opened a new issue #6642: Context in
Pulsar functions not getting mocked
prasanthkumar2392 opened a new issue #6642: Context in Pulsar functions not getting mocked
URL: https://github.com/apache/pulsar/issues/6642
**I am trying to write a unit test for Pulsar functions, and if I try to Mock Context class, I get null pointer exception**
**Steps to reproduce the behavior:**
- I am creating a pulsar function which does some processing logic on the messages.
- I am using Context interface inside the function to get logger, get output topic and newOutputMessage.
While writing unit tests for functions, I am mocking the context as per this example but I land up in facing null pointer exception as Context class is not getting mocked
[http://pulsar.apache.org/docs/ja/2.4.0/functions-debugging/#use-unit-test](url)
**Pulsar functions -2.5.0**
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[GitHub] [pulsar] jiazhai commented on issue #6642: Context in Pulsar
functions not getting mocked
Posted by GitBox <gi...@apache.org>.
jiazhai commented on issue #6642: Context in Pulsar functions not getting mocked
URL: https://github.com/apache/pulsar/issues/6642#issuecomment-606993558
@prasanthkumar2392 What is your test looks like?
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[GitHub] [pulsar] jiazhai commented on issue #6642: Context in Pulsar
functions not getting mocked
Posted by GitBox <gi...@apache.org>.
jiazhai commented on issue #6642: Context in Pulsar functions not getting mocked
URL: https://github.com/apache/pulsar/issues/6642#issuecomment-610718219
@prasanthkumar2392 It looks more like a mock issue. looks like we need to mock the need classes and methods.
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[GitHub] [pulsar] prasanthkumar2392 edited a comment on issue #6642: Context
in Pulsar functions not getting mocked
Posted by GitBox <gi...@apache.org>.
prasanthkumar2392 edited a comment on issue #6642: Context in Pulsar functions not getting mocked
URL: https://github.com/apache/pulsar/issues/6642#issuecomment-608241467
Hi,
- I am using functions api 2.5.0 and I am using context to set the key and value inside functions and sending it to the output topic.
- But in my test class, I am trying to mock the context and i am unsuccesfull.
(Also tried context configuration of puslar test container to see if context is not null)
My function class to process the messages
```
import org.apache.pulsar.client.api.PulsarClientException;
import org.apache.pulsar.client.api.Schema;
import org.apache.pulsar.functions.api.Context;
import org.apache.pulsar.functions.api.Function;
import org.slf4j.Logger;
public class MyFunction implements Function<byte[], Void> {
@Override
public Void process(byte[] input, Context context) throws Exception {
Logger log = context.getLogger();
log.debug("Entered ");
//Initialize Required classes to process message
if (input != null) {
try {
// assign the key and value and send it to output topic
log.debug("Key :");
log.debug("Value ");
context.newOutputMessage(context.getOutputTopic(), Schema.STRING)
.key("")
.value("")
.send();
} catch (PulsarClientException e) {
log.error("error in " + e.toString());
}
}
return null;
}
}
```
and my sample test class looks like this
```
import com.ericsson.iota.dm.function.MyFunction;
import org.apache.pulsar.functions.api.Context;
import org.junit.jupiter.api.Test;
import static org.mockito.Mockito.mock;
public class FunctionTest {
@Test
public void functionProcessing() throws Exception {
String message ="{\n" +
" \"name\": \"XXXXX\",\n" +
" \"email\": \"xxxxx@xxx.com\"\n" +
"}";
MyFunction myFunction =new MyFunction();
myFunction.process(message.getBytes(), mock(Context.class));
// Assert conditions
}
}
```
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[GitHub] [pulsar] prasanthkumar2392 commented on issue #6642: Context in
Pulsar functions not getting mocked
Posted by GitBox <gi...@apache.org>.
prasanthkumar2392 commented on issue #6642: Context in Pulsar functions not getting mocked
URL: https://github.com/apache/pulsar/issues/6642#issuecomment-608241467
Hi,
- I am using functions api 2.5.0 and I am using context to set the key and value inside functions and sending it to the output topic.
- But in my test class, I am trying to mock the context and i am unsuccesfull.
(Also tried context configuration of puslar test container to see if context is not null)
My function class to process the messages
`
import org.apache.pulsar.client.api.PulsarClientException;
import org.apache.pulsar.client.api.Schema;
import org.apache.pulsar.functions.api.Context;
import org.apache.pulsar.functions.api.Function;
import org.slf4j.Logger;
public class MyFunction implements Function<byte[], Void> {
@Override
public Void process(byte[] input, Context context) throws Exception {
Logger log = context.getLogger();
log.debug("Entered ");
//Initialize Required classes to process message
if (input != null) {
try {
// assign the key and value and send it to output topic
log.debug("Key :");
log.debug("Value ");
context.newOutputMessage(context.getOutputTopic(), Schema.STRING)
.key("")
.value("")
.send();
} catch (PulsarClientException e) {
log.error("error in " + e.toString());
}
}
return null;
}
}
`
and my sample test class
`import com.ericsson.iota.dm.function.MyFunction;
import org.apache.pulsar.functions.api.Context;
import org.junit.jupiter.api.Test;
import static org.mockito.Mockito.mock;
public class FunctionTest {
@Test
public void functionProcessing() throws Exception {
String message ="{\n" +
" \"name\": \"XXXXX\",\n" +
" \"email\": \"xxxxx@xxx.com\"\n" +
"}";
MyFunction myFunction =new MyFunction();
myFunction.process(message.getBytes(), mock(Context.class));
// Assert conditions
}
}
`
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[GitHub] [pulsar] prasanthkumar2392 edited a comment on issue #6642: Context
in Pulsar functions not getting mocked
Posted by GitBox <gi...@apache.org>.
prasanthkumar2392 edited a comment on issue #6642: Context in Pulsar functions not getting mocked
URL: https://github.com/apache/pulsar/issues/6642#issuecomment-608241467
Hi,
- I am using functions api 2.5.0 and I am using context to set the key and value inside functions and sending it to the output topic.
- But in my test class, I am trying to mock the context and i am unsuccesfull.
(Also tried context configuration of puslar test container to see if context is not null)
My function class to process the messages
```
import org.apache.pulsar.client.api.PulsarClientException;
import org.apache.pulsar.client.api.Schema;
import org.apache.pulsar.functions.api.Context;
import org.apache.pulsar.functions.api.Function;
import org.slf4j.Logger;
public class MyFunction implements Function<byte[], Void> {
@Override
public Void process(byte[] input, Context context) throws Exception {
Logger log = context.getLogger();
log.debug("Entered ");
//Initialize Required classes to process message
if (input != null) {
try {
// assign the key and value and send it to output topic
log.debug("Key :");
log.debug("Value ");
context.newOutputMessage(context.getOutputTopic(), Schema.STRING)
.key("")
.value("")
.send();
} catch (PulsarClientException e) {
log.error("error in " + e.toString());
}
}
return null;
}
}
```
and my sample test class looks like this
```
import org.apache.pulsar.functions.api.Context;
import org.junit.jupiter.api.Test;
import static org.mockito.Mockito.mock;
public class FunctionTest {
@Test
public void functionProcessing() throws Exception {
String message ="{\n" +
" \"name\": \"XXXXX\",\n" +
" \"email\": \"xxxxx@xxx.com\"\n" +
"}";
MyFunction myFunction =new MyFunction();
myFunction.process(message.getBytes(), mock(Context.class));
// Assert conditions
}
}
```
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[GitHub] [pulsar] jiazhai edited a comment on issue #6642: Context in Pulsar
functions not getting mocked
Posted by GitBox <gi...@apache.org>.
jiazhai edited a comment on issue #6642: Context in Pulsar functions not getting mocked
URL: https://github.com/apache/pulsar/issues/6642#issuecomment-606993558
@prasanthkumar2392 What is your test looks like?
And it would be good to reference to 2.5.0 instead of 2.4.0 related docs
http://pulsar.apache.org/docs/en/functions-debugging/
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