STORM-3142: Add JUnit 5 support, migrate a couple of tests in storm-k…

examples/storm-loadgen/pom.xml

@@ -35,11 +35,6 @@ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xs
       <groupId>org.hdrhistogram</groupId>
       <artifactId>HdrHistogram</artifactId>
     </dependency>
-    <dependency>
-      <groupId>junit</groupId>
-      <artifactId>junit</artifactId>
-      <scope>test</scope>
-    </dependency>
     <dependency>
       <groupId>org.apache.storm</groupId>
       <artifactId>storm-client</artifactId>

examples/storm-starter/pom.xml

@@ -39,11 +39,6 @@
       <groupId>org.hdrhistogram</groupId>
       <artifactId>HdrHistogram</artifactId>
     </dependency>
-    <dependency>
-      <groupId>junit</groupId>
-      <artifactId>junit</artifactId>
-      <scope>test</scope>
-    </dependency>
     <dependency>
       <groupId>org.testng</groupId>
       <artifactId>testng</artifactId>

external/storm-elasticsearch/pom.xml

@@ -80,11 +80,6 @@
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
         </dependency>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava-testlib</artifactId>

external/storm-hbase/pom.xml

@@ -83,11 +83,6 @@
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
         </dependency>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>org.mockito</groupId>
             <artifactId>mockito-core</artifactId>

external/storm-jms/pom.xml

@@ -48,12 +48,6 @@
             <artifactId>geronimo-jms_1.1_spec</artifactId>
             <version>1.1.1</version>
         </dependency>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>4.10</version>
-            <scope>test</scope>
-        </dependency>
 
         <!-- Active MQ for testing JMS-->
         <dependency>

external/storm-kafka-client/pom.xml

@@ -88,6 +88,10 @@
             <groupId>org.mockito</groupId>
             <artifactId>mockito-core</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-junit-jupiter</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.hamcrest</groupId>
             <artifactId>java-hamcrest</artifactId>

external/storm-kafka-client/src/test/java/org/apache/storm/kafka/KafkaUnit.java

@@ -40,12 +40,14 @@
 import org.apache.kafka.clients.producer.KafkaProducer;
 import org.apache.kafka.clients.producer.ProducerRecord;
 import org.apache.kafka.common.serialization.Serializer;
+import org.apache.storm.testing.TmpPath;
 
 public class KafkaUnit {
     private KafkaServer kafkaServer;
     private EmbeddedZookeeper zkServer;
     private ZkUtils zkUtils;
     private KafkaProducer<String, String> producer;
+    private TmpPath kafkaDir;
     private static final String ZK_HOST = "127.0.0.1";
     private static final String KAFKA_HOST = "127.0.0.1";
     private static final int KAFKA_PORT = 9092;
@@ -61,10 +63,11 @@ public void setUp() throws IOException {
         zkUtils = ZkUtils.apply(zkClient, false);
 
         // setup Broker
+        kafkaDir = new TmpPath(Files.createTempDirectory("kafka-").toAbsolutePath().toString());
         Properties brokerProps = new Properties();
         brokerProps.setProperty("zookeeper.connect", zkConnect);
         brokerProps.setProperty("broker.id", "0");
-        brokerProps.setProperty("log.dirs", Files.createTempDirectory("kafka-").toAbsolutePath().toString());
+        brokerProps.setProperty("log.dirs", kafkaDir.getPath());
         brokerProps.setProperty("listeners", String.format("PLAINTEXT://%s:%d", KAFKA_HOST, KAFKA_PORT));
         KafkaConfig config = new KafkaConfig(brokerProps);
         MockTime mock = new MockTime();
@@ -77,6 +80,7 @@ public void setUp() throws IOException {
     public void tearDown() {
         closeProducer();
         kafkaServer.shutdown();
+        kafkaDir.close();
         zkUtils.close();
         zkServer.shutdown();
     }

external/storm-kafka-client/src/test/java/org/apache/storm/kafka/KafkaUnitRule.java → external/storm-kafka-client/src/test/java/org/apache/storm/kafka/KafkaUnitExtension.java

@@ -17,25 +17,25 @@
  */
 package org.apache.storm.kafka;
 
-import java.io.IOException;
-import org.junit.rules.ExternalResource;
+import org.junit.jupiter.api.extension.AfterEachCallback;
+import org.junit.jupiter.api.extension.BeforeEachCallback;
+import org.junit.jupiter.api.extension.ExtensionContext;
 
-
-public class KafkaUnitRule extends ExternalResource {
+public class KafkaUnitExtension implements BeforeEachCallback, AfterEachCallback {
 
     private final KafkaUnit kafkaUnit;
 
-    public KafkaUnitRule() {
+    public KafkaUnitExtension() {
         this.kafkaUnit = new KafkaUnit();
     }
 
     @Override
-    public void before() throws IOException {
+    public void beforeEach(ExtensionContext ctx) throws Exception {
         kafkaUnit.setUp();
     }
 
     @Override
-    public void after() {
+    public void afterEach(ExtensionContext ctx) throws Exception {
         kafkaUnit.tearDown();
     }
 

external/storm-kafka-client/src/test/java/org/apache/storm/kafka/NullRecordTranslator.java

@@ -16,7 +16,6 @@
 
 package org.apache.storm.kafka;
 
-import java.util.Collections;
 import java.util.List;
 import org.apache.kafka.clients.consumer.ConsumerRecord;
 import org.apache.storm.kafka.spout.RecordTranslator;

external/storm-kafka-client/src/test/java/org/apache/storm/kafka/spout/KafkaSpoutAbstractTest.java

@@ -18,45 +18,41 @@
 
 package org.apache.storm.kafka.spout;
 
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.reset;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+
+import java.util.HashMap;
+import java.util.Map;
 import org.apache.kafka.clients.consumer.KafkaConsumer;
 import org.apache.kafka.clients.consumer.OffsetAndMetadata;
 import org.apache.kafka.common.TopicPartition;
-import org.apache.storm.kafka.KafkaUnitRule;
+import org.apache.storm.kafka.KafkaUnitExtension;
 import org.apache.storm.kafka.spout.config.builder.SingleTopicKafkaSpoutConfiguration;
 import org.apache.storm.kafka.spout.internal.KafkaConsumerFactory;
 import org.apache.storm.kafka.spout.internal.KafkaConsumerFactoryDefault;
+import org.apache.storm.kafka.spout.subscription.TopicAssigner;
 import org.apache.storm.spout.SpoutOutputCollector;
 import org.apache.storm.task.TopologyContext;
 import org.apache.storm.tuple.Values;
 import org.apache.storm.utils.Time;
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Rule;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.junit.jupiter.api.extension.RegisterExtension;
 import org.mockito.ArgumentCaptor;
 import org.mockito.Captor;
+import org.mockito.junit.jupiter.MockitoExtension;
 
-import java.util.HashMap;
-import java.util.Map;
-
-import static org.hamcrest.CoreMatchers.is;
-import static org.hamcrest.MatcherAssert.assertThat;
-import static org.mockito.Matchers.eq;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.reset;
-import static org.mockito.Mockito.spy;
-import static org.mockito.Mockito.verify;
-
-import org.apache.storm.kafka.spout.subscription.TopicAssigner;
-import org.mockito.junit.MockitoJUnit;
-import org.mockito.junit.MockitoRule;
-
+@ExtendWith(MockitoExtension.class)
 public abstract class KafkaSpoutAbstractTest {
 
-    @Rule
-    public MockitoRule mockito = MockitoJUnit.rule();
-
-    @Rule
-    public KafkaUnitRule kafkaUnitRule = new KafkaUnitRule();
+    @RegisterExtension
+    public KafkaUnitExtension kafkaUnitExtension = new KafkaUnitExtension();
 
     final TopologyContext topologyContext = mock(TopologyContext.class);
     final Map<String, Object> conf = new HashMap<>();
@@ -79,7 +75,7 @@ protected KafkaSpoutAbstractTest(long commitOffsetPeriodMs) {
         this.commitOffsetPeriodMs = commitOffsetPeriodMs;
     }
 
-    @Before
+    @BeforeEach
     public void setUp() {
         spoutConfig = createSpoutConfig();
 
@@ -105,15 +101,15 @@ KafkaConsumer<String, String> createConsumerSpy() {
         return spy(new KafkaConsumerFactoryDefault<String, String>().createConsumer(spoutConfig));
     }
 
-    @After
+    @AfterEach
     public void tearDown() throws Exception {
         simulatedTime.close();
     }
 
     abstract KafkaSpoutConfig<String, String> createSpoutConfig();
 
     void prepareSpout(int messageCount) throws Exception {
-        SingleTopicKafkaUnitSetupHelper.populateTopicData(kafkaUnitRule.getKafkaUnit(), SingleTopicKafkaSpoutConfiguration.TOPIC, messageCount);
+        SingleTopicKafkaUnitSetupHelper.populateTopicData(kafkaUnitExtension.getKafkaUnit(), SingleTopicKafkaSpoutConfiguration.TOPIC, messageCount);
         SingleTopicKafkaUnitSetupHelper.initializeSpout(spout, conf, topologyContext, collectorMock);
     }
 

external/storm-kafka-client/src/test/java/org/apache/storm/kafka/spout/KafkaSpoutConfigTest.java

@@ -19,28 +19,24 @@
 
 import static org.hamcrest.CoreMatchers.is;
 import static org.hamcrest.CoreMatchers.nullValue;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertThat;
-import static org.junit.Assert.assertTrue;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.HashMap;
 import org.apache.kafka.clients.consumer.ConsumerConfig;
 import org.apache.kafka.common.serialization.StringDeserializer;
 import org.apache.storm.kafka.spout.KafkaSpoutConfig.FirstPollOffsetStrategy;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.ExpectedException;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
 
 public class KafkaSpoutConfigTest {
-
-    @Rule
-    public ExpectedException expectedException = ExpectedException.none();
 
     @Test
     public void testBasic() {
         KafkaSpoutConfig<String, String> conf = KafkaSpoutConfig.builder("localhost:1234", "topic").build();
-        assertEquals(FirstPollOffsetStrategy.UNCOMMITTED_EARLIEST, conf.getFirstPollOffsetStrategy());
+        assertEquals(conf.getFirstPollOffsetStrategy(), FirstPollOffsetStrategy.UNCOMMITTED_EARLIEST);
         assertNull(conf.getConsumerGroupId());
         assertTrue(conf.getTranslator() instanceof DefaultRecordTranslator);
         HashMap<String, Object> expected = new HashMap<>();
@@ -49,8 +45,8 @@ public void testBasic() {
         expected.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest");
         expected.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
         expected.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
-        assertEquals(expected, conf.getKafkaProps());
-        assertEquals(KafkaSpoutConfig.DEFAULT_METRICS_TIME_BUCKET_SIZE_SECONDS, conf.getMetricsTimeBucketSizeInSecs());
+        assertEquals(conf.getKafkaProps(), expected);
+        assertEquals(conf.getMetricsTimeBucketSizeInSecs(), KafkaSpoutConfig.DEFAULT_METRICS_TIME_BUCKET_SIZE_SECONDS);
     }
 
     @Test
@@ -59,7 +55,7 @@ public void testSetEmitNullTuplesToTrue() {
                 .setEmitNullTuples(true)
                 .build();
 
-        assertTrue("Failed to set emit null tuples to true", conf.isEmitNullTuples());
+        assertTrue(conf.isEmitNullTuples(), "Failed to set emit null tuples to true");
     }
 
     @Test
@@ -88,14 +84,13 @@ public void testMetricsTimeBucketSizeInSecs() {
              .setMetricsTimeBucketSizeInSecs(100)
             .build();
 
-        assertEquals(100, conf.getMetricsTimeBucketSizeInSecs());
+        assertEquals(conf.getMetricsTimeBucketSizeInSecs(), 100);
     }
 
     @Test
     public void testThrowsIfEnableAutoCommitIsSet() {
-        expectedException.expect(IllegalStateException.class);
-        KafkaSpoutConfig.builder("localhost:1234", "topic")
+        Assertions.assertThrows(IllegalStateException.class, () -> KafkaSpoutConfig.builder("localhost:1234", "topic")
             .setProp(ConsumerConfig.ENABLE_AUTO_COMMIT_CONFIG, true)
-            .build();
+            .build());
     }
 }

external/storm-kafka-client/src/test/java/org/apache/storm/kafka/spout/KafkaSpoutEmitTest.java

@@ -16,7 +16,6 @@
 package org.apache.storm.kafka.spout;
 
 import static org.mockito.Mockito.inOrder;
-import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.reset;
 import static org.mockito.Mockito.times;
@@ -40,8 +39,6 @@
 import org.apache.storm.task.TopologyContext;
 import org.apache.storm.utils.Time;
 import org.apache.storm.utils.Time.SimulatedTime;
-import org.junit.Before;
-import org.junit.Test;
 import org.mockito.ArgumentCaptor;
 import org.mockito.InOrder;
 
@@ -54,9 +51,10 @@
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.mock;
 
-import org.apache.kafka.clients.consumer.internals.PartitionAssignor.Subscription;
 import org.apache.storm.kafka.spout.subscription.ManualPartitioner;
 import org.apache.storm.kafka.spout.subscription.TopicFilter;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 public class KafkaSpoutEmitTest {
 
@@ -68,7 +66,7 @@ public class KafkaSpoutEmitTest {
     private KafkaConsumer<String, String> consumerMock;
     private KafkaSpoutConfig<String, String> spoutConfig;
 
-    @Before
+    @BeforeEach
     public void setUp() {
         spoutConfig = createKafkaSpoutConfigBuilder(mock(TopicFilter.class), mock(ManualPartitioner.class), -1)
             .setOffsetCommitPeriodMs(offsetCommitPeriodMs)

external/storm-kafka-client/src/test/java/org/apache/storm/kafka/spout/KafkaSpoutNullTupleTest.java

@@ -18,17 +18,15 @@
 package org.apache.storm.kafka.spout;
 
 
-import org.apache.storm.kafka.spout.config.builder.SingleTopicKafkaSpoutConfiguration;
-import org.apache.storm.utils.Time;
-import org.junit.Test;
-
-import java.util.regex.Pattern;
-
 import static org.mockito.ArgumentMatchers.*;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
 
+import java.util.regex.Pattern;
 import org.apache.storm.kafka.NullRecordTranslator;
+import org.apache.storm.kafka.spout.config.builder.SingleTopicKafkaSpoutConfiguration;
+import org.apache.storm.utils.Time;
+import org.junit.jupiter.api.Test;
 
 public class KafkaSpoutNullTupleTest extends KafkaSpoutAbstractTest {
 
@@ -39,7 +37,7 @@ public KafkaSpoutNullTupleTest() {
 
     @Override
     KafkaSpoutConfig<String, String> createSpoutConfig() {
-        return KafkaSpoutConfig.builder("127.0.0.1:" + kafkaUnitRule.getKafkaUnit().getKafkaPort(),
+        return KafkaSpoutConfig.builder("127.0.0.1:" + kafkaUnitExtension.getKafkaUnit().getKafkaPort(),
                 Pattern.compile(SingleTopicKafkaSpoutConfiguration.TOPIC))
                 .setOffsetCommitPeriodMs(commitOffsetPeriodMs)
                 .setRecordTranslator(new NullRecordTranslator<>())