org.apache.flink.streaming.util

Class StreamingMultipleProgramsTestBase

java.lang.Object

org.apache.flink.util.TestLogger

org.apache.flink.test.util.TestBaseUtils

org.apache.flink.test.util.AbstractTestBase

org.apache.flink.streaming.util.StreamingMultipleProgramsTestBase

public class StreamingMultipleProgramsTestBase
extends AbstractTestBase

Base class for streaming unit tests that run multiple tests and want to reuse the same Flink cluster. This saves a significant amount of time, since the startup and shutdown of the Flink clusters (including actor systems, etc) usually dominates the execution of the actual tests. To write a unit test against this test base, simply extend it and add one or more regular test methods and retrieve the StreamExecutionEnvironment from the context:

   @Test
   public void someTest() {
       StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
       // test code
       env.execute();
   }

   @Test
   public void anotherTest() {
       StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
       // test code
       env.execute();
   }

 

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.test.util.TestBaseUtils

TestBaseUtils.TupleComparator<T extends org.apache.flink.api.java.tuple.Tuple>

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.apache.flink.runtime.minicluster.LocalFlinkMiniCluster	cluster
protected static int	DEFAULT_PARALLELISM
protected static org.slf4j.Logger	LOG

Fields inherited from class org.apache.flink.test.util.AbstractTestBase

config, executor, numTaskManagers, taskManagerNumSlots

Fields inherited from class org.apache.flink.test.util.TestBaseUtils

DEFAULT_AKKA_ASK_TIMEOUT, DEFAULT_AKKA_STARTUP_TIMEOUT, DEFAULT_TIMEOUT, logDir, MINIMUM_HEAP_SIZE_MB, TASK_MANAGER_MEMORY_SIZE

Fields inherited from class org.apache.flink.util.TestLogger

log, watchman

Constructor Summary

Constructors

Constructor and Description
StreamingMultipleProgramsTestBase()

Method Summary

Methods

Modifier and Type	Method and Description
static void	setup()
static void	teardown()

Methods inherited from class org.apache.flink.test.util.AbstractTestBase

createAndRegisterTempFile, createTempFile, getNumTaskManagers, getTaskManagerNumSlots, getTempDirPath, getTempFilePath, setNumTaskManagers, setTaskManagerNumSlots, startCluster, stopCluster

Methods inherited from class org.apache.flink.test.util.TestBaseUtils

asFile, checkLinesAgainstRegexp, compareKeyValuePairsWithDelta, compareKeyValuePairsWithDelta, compareOrderedResultAsText, compareOrderedResultAsText, compareResultAsText, compareResultAsTuples, compareResultCollections, compareResultsByLinesInMemory, compareResultsByLinesInMemory, compareResultsByLinesInMemoryWithStrictOrder, compareResultsByLinesInMemoryWithStrictOrder, constructTestPath, constructTestURI, containsResultAsText, deleteRecursively, getFromHTTP, getResultInputStream, getResultInputStream, getResultReader, getResultReader, readAllResultLines, readAllResultLines, readAllResultLines, setEnv, startCluster, startCluster, stopCluster, toParameterList, toParameterList

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DEFAULT_PARALLELISM

protected static final int DEFAULT_PARALLELISM

See Also:

Constant Field Values

cluster

protected static org.apache.flink.runtime.minicluster.LocalFlinkMiniCluster cluster

LOG

protected static final org.slf4j.Logger LOG

Constructor Detail

StreamingMultipleProgramsTestBase

public StreamingMultipleProgramsTestBase()

Method Detail

setup

public static void setup()
                  throws Exception

Throws:

Exception

teardown

public static void teardown()
                     throws Exception

Throws:

Exception