Package org.apache.flink.test.util

Class TestUtils

  • public class TestUtils
extends Object
    Test utilities.

    • Constructor Detail

      • TestUtils

        public TestUtils()

    • Method Detail

      • tryExecute

        public static void tryExecute​(org.apache.flink.streaming.api.environment.StreamExecutionEnvironment see,
                              String name)
                       throws Exception
        Execute the job and wait for the job result synchronously.
        Throws:
        Exception - If executing the environment throws an exception which does not have SuccessException as a cause.

      • submitJobAndWaitForResult

        public static void submitJobAndWaitForResult​(org.apache.flink.client.program.ClusterClient<?> client,
                                             org.apache.flink.runtime.jobgraph.JobGraph jobGraph,
                                             ClassLoader classLoader)
                                      throws Exception
        Throws:
        Exception

      • loadCheckpointMetadata

        public static org.apache.flink.runtime.checkpoint.metadata.CheckpointMetadata loadCheckpointMetadata​(String savepointPath)
                                                                                              throws IOException
        Throws:
        IOException

      • getMostRecentCompletedCheckpoint

        @Deprecated
public static File getMostRecentCompletedCheckpoint​(File checkpointDir)
                                             throws IOException
        Deprecated.
        please use CommonTestUtils.getLatestCompletedCheckpointPath(JobID, MiniCluster) which is less prone to NoSuchFileException and IO-intensive.
        Throws:
        IOException

      • waitUntilAllTasksAreRunning

        public static void waitUntilAllTasksAreRunning​(org.apache.flink.client.program.rest.RestClusterClient<?> restClusterClient,
                                               org.apache.flink.api.common.JobID jobId)
                                        throws Exception
        Wait util all task of a job turns into RUNNING state.
        Parameters:
        restClusterClient - RestClusterClient which could be InjectClusterClient.
        Throws:
        Exception

      • waitUntil

        public static void waitUntil​(Supplier<Boolean> condition,
                             String message)
                      throws InterruptedException,
                             TimeoutException
        Wait util the give condition is met or timeout is reached, whichever comes first.
        Parameters:
        condition - the condition to meet.
        message - the message to show if the condition is not met before timeout.
        Throws:
        InterruptedException - when the thread is interrupted when waiting for the condition.
        TimeoutException - when the condition is not met after the specified timeout has elapsed.

      • waitUntil

        public static void waitUntil​(Supplier<Boolean> condition,
                             Duration timeout,
                             String message)
                      throws InterruptedException,
                             TimeoutException
        Wait util the give condition is met or timeout is reached, whichever comes first.
        Parameters:
        condition - the condition to meet.
        timeout - the maximum time to wait for the condition to become true.
        message - the message to show if the condition is not met before timeout.
        Throws:
        InterruptedException - when the thread is interrupted when waiting for the condition.
        TimeoutException - when the condition is not met after the specified timeout has elapsed.