DefaultContainerizedExternalSystem.Extension for supporting running of connector testing framework.StreamExecutionEnvironment for configuring and executing the Flink job.Source.DefaultContainerizedExternalSystem.ExternalContext.ExternalContext.Factory for constructing ExternalContext before invocation of each test case.SourceSplit in the external system.TestEnvironment.TestEnvironment annotated by TestEnv and external system annotated by ExternalSystem.Copyright © 2014–2021 The Apache Software Foundation. All rights reserved.