| /* |
| * 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.ratis.shell.cli.sh; |
| |
| import org.apache.ratis.BaseTest; |
| import org.apache.ratis.shell.cli.Command; |
| import org.apache.ratis.shell.cli.sh.command.AbstractParentCommand; |
| import org.apache.ratis.shell.cli.sh.command.Context; |
| import org.apache.ratis.shell.cli.sh.command.ElectionCommand; |
| import org.apache.ratis.shell.cli.sh.command.GroupCommand; |
| import org.apache.ratis.shell.cli.sh.command.LocalCommand; |
| import org.apache.ratis.shell.cli.sh.command.PeerCommand; |
| import org.apache.ratis.shell.cli.sh.command.SnapshotCommand; |
| import org.apache.ratis.util.ReflectionUtils; |
| import org.junit.jupiter.api.Assertions; |
| import org.junit.jupiter.api.Test; |
| import org.reflections.Reflections; |
| |
| import java.io.PrintStream; |
| import java.lang.reflect.Modifier; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.function.Function; |
| |
| /** |
| * Test {@link RatisShell} |
| */ |
| public class TestRatisShell extends BaseTest { |
| static final PrintStream OUT = System.out; |
| static final Class<?>[] ARG_CLASSES = new Class[] {Context.class}; |
| |
| static void assertCommand(String message, Command expected, Command computed) { |
| Assertions.assertEquals(expected.getClass(), computed.getClass(), message); |
| Assertions.assertEquals(expected.getCommandName(), computed.getCommandName(), message); |
| } |
| |
| static void assertCommands(List<Command> expected, List<Command> computed) { |
| Assertions.assertEquals(expected.size(), computed.size()); |
| for(int i = 0; i < expected.size(); i++) { |
| assertCommand("Command " + i, expected.get(i), computed.get(i)); |
| } |
| } |
| |
| @Test |
| public void testFullParentCommandList() throws Exception { |
| final List<Command> expected = new ArrayList<>(loadCommands(RatisShell.class.getPackage().getName() + ".command")); |
| Collections.sort(expected); |
| |
| try(RatisShell shell = new RatisShell(OUT)) { |
| final List<Command> computed = new ArrayList<>(shell.getCommands()); |
| Collections.sort(computed); |
| |
| assertCommands(expected, computed); |
| } |
| } |
| |
| @Test |
| public void testFullPeerCommandList() { |
| runTestFullCommandList(PeerCommand::new); |
| } |
| |
| @Test |
| public void testFullGroupCommandList() { |
| runTestFullCommandList(GroupCommand::new); |
| } |
| |
| @Test |
| public void testFullElectionCommandList() { |
| runTestFullCommandList(ElectionCommand::new); |
| } |
| |
| @Test |
| public void testFullSnapshotCommandList() { |
| runTestFullCommandList(SnapshotCommand::new); |
| } |
| |
| @Test |
| public void testFullLocalCommandList() { |
| runTestFullCommandList(LocalCommand::new); |
| } |
| |
| static void runTestFullCommandList(Function<Context, AbstractParentCommand> parentCommandConstructor) { |
| final AbstractParentCommand parent = parentCommandConstructor.apply(new Context(OUT)); |
| final List<Command> computed = new ArrayList<>(parent.getSubCommands().values()); |
| Collections.sort(computed); |
| |
| Assertions.assertFalse(computed.isEmpty()); |
| |
| final Package pkg = computed.iterator().next().getClass().getPackage(); |
| final List<Command> expected = new ArrayList<>(loadCommands(pkg)); |
| Collections.sort(expected); |
| |
| assertCommands(expected, computed); |
| } |
| |
| static Collection<Command> loadCommands(Package pkg) { |
| return loadCommands(pkg.getName()); |
| } |
| |
| static Collection<Command> loadCommands(String pkgName) { |
| return oldLoadCommands(pkgName, ARG_CLASSES, new Object[]{new Context(OUT)}).values(); |
| } |
| |
| /** |
| * Get instances of all subclasses of {@link Command} in the given package. |
| * |
| * @param pkgName package prefix to look in |
| * @param classArgs type of args to instantiate the class |
| * @param objectArgs args to instantiate the class |
| * @return a mapping from command name to command instance |
| */ |
| static Map<String, Command> oldLoadCommands(String pkgName, Class<?>[] classArgs, Object[] objectArgs) { |
| Map<String, Command> commandsMap = new HashMap<>(); |
| Reflections reflections = new Reflections(pkgName); |
| for (Class<? extends Command> cls : reflections.getSubTypesOf(Command.class)) { |
| // Add commands from <pkgName>.* |
| if (cls.getPackage().getName().equals(pkgName) |
| && !Modifier.isAbstract(cls.getModifiers())) { |
| // Only instantiate a concrete class |
| final Command cmd = ReflectionUtils.newInstance(cls, classArgs, objectArgs); |
| commandsMap.put(cmd.getCommandName(), cmd); |
| } |
| } |
| return commandsMap; |
| } |
| } |