LadyForest commented on a change in pull request #14895: URL: https://github.com/apache/flink/pull/14895#discussion_r573527422
########## File path: flink-table/flink-table-api-java/src/test/java/org/apache/flink/table/utils/ModuleMock.java ########## @@ -0,0 +1,81 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.flink.table.utils; + +import org.apache.flink.table.functions.FunctionDefinition; +import org.apache.flink.table.functions.FunctionKind; +import org.apache.flink.table.module.Module; +import org.apache.flink.table.types.inference.utils.FunctionDefinitionMock; + +import java.util.Collections; +import java.util.HashSet; +import java.util.Optional; +import java.util.Set; + +/** Mocking {@link Module} for tests. */ +public abstract class ModuleMock implements Module { + private static final Set<String> BUILT_IN_FUNCTIONS = + Collections.unmodifiableSet(new HashSet<>(Collections.singletonList("dummy"))); + private final String type; + private final FunctionDefinitionMock functionDef; + + public ModuleMock(String type) { + this.type = type; + functionDef = new FunctionDefinitionMock(); + functionDef.functionKind = FunctionKind.OTHER; + } + + public String getType() { + return type; + } + + @Override + public Set<String> listFunctions() { + return BUILT_IN_FUNCTIONS; + } + + @Override + public Optional<FunctionDefinition> getFunctionDefinition(String name) { + if (BUILT_IN_FUNCTIONS.contains(name)) { + return Optional.of(functionDef); + } + return Optional.empty(); + } + + /** A simple mock module with type "x". */ + public static class ModuleX extends ModuleMock { Review comment: Hi Jark, do you mean ```java public class ModuleMock implements Module { ... } ``` and ```java ModuleMock x = new ModuleMock("x"); ModuleMock y = new ModuleMock("y"); ModuleMock z = new ModuleMock("z"); ``` ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
