org.apache.flink.test.util

Class MultipleProgramsTestBase

java.lang.Object

org.apache.flink.util.TestLogger

org.apache.flink.test.util.AbstractTestBase

org.apache.flink.test.util.MultipleProgramsTestBase

public class MultipleProgramsTestBase
extends AbstractTestBase

Base class for 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 ExecutionEnvironment from the context:

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

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

 

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MultipleProgramsTestBase.TestExecutionMode Enum that defines which execution environment to run the next test on: An embedded local flink cluster, or the collection execution backend.

Field Summary

Fields

Modifier and Type	Field and Description
protected MultipleProgramsTestBase.TestExecutionMode	mode

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

MINI_CLUSTER_RESOURCE, TEMPORARY_FOLDER

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

log, nameProvider, watchman

Constructor Summary

Constructors

Constructor and Description
MultipleProgramsTestBase(MultipleProgramsTestBase.TestExecutionMode mode)

Method Summary

Modifier and Type	Method and Description
static Collection<Object[]>	executionModes()
void	setupEnvironment()
void	teardownEnvironment()

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

cleanupRunningJobs, createAndRegisterTempFile, createTempFile, getTempDirPath, getTempFilePath

Methods inherited from class java.lang.Object

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

Field Detail

mode

protected final MultipleProgramsTestBase.TestExecutionMode mode

Constructor Detail

MultipleProgramsTestBase

public MultipleProgramsTestBase(MultipleProgramsTestBase.TestExecutionMode mode)

Method Detail

setupEnvironment

public void setupEnvironment()

teardownEnvironment

public void teardownEnvironment()

executionModes

public static Collection<Object[]> executionModes()