| /* |
| * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package jdk.tools.jaotc.test.collect; |
| |
| |
| import jdk.tools.jaotc.LoadedClass; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import java.util.ArrayList; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| import java.util.function.BiConsumer; |
| |
| public class ClassSearchTest { |
| @Test(expected = InternalError.class) |
| public void itShouldThrowExceptionIfNoProvidersAvailable() { |
| ClassSearch target = new ClassSearch(); |
| SearchPath searchPath = new SearchPath(); |
| target.search(list("foo"), searchPath); |
| } |
| |
| @Test |
| public void itShouldFindAProviderForEachEntry() { |
| Set<String> searched = new HashSet<>(); |
| ClassSearch target = new ClassSearch(); |
| target.addProvider(new SourceProvider() { |
| @Override |
| public ClassSource findSource(String name, SearchPath searchPath) { |
| searched.add(name); |
| return new NoopSource(); |
| } |
| }); |
| target.search(list("foo", "bar", "foobar"), null); |
| Assert.assertEquals(hashset("foo", "bar", "foobar"), searched); |
| } |
| |
| @Test |
| public void itShouldSearchAllProviders() { |
| Set<String> visited = new HashSet<>(); |
| ClassSearch target = new ClassSearch(); |
| target.addProvider((name, searchPath) -> { |
| visited.add("1"); |
| return null; |
| }); |
| target.addProvider((name, searchPath) -> { |
| visited.add("2"); |
| return null; |
| }); |
| |
| try { |
| target.search(list("foo"), null); |
| } catch (InternalError e) { |
| // throws because no provider gives a source |
| } |
| |
| Assert.assertEquals(hashset("1", "2"), visited); |
| } |
| |
| @Test |
| public void itShouldTryToLoadSaidClassFromClassLoader() { |
| Set<String> loaded = new HashSet<>(); |
| |
| ClassSearch target = new ClassSearch(); |
| target.addProvider(new SourceProvider() { |
| @Override |
| public ClassSource findSource(String name, SearchPath searchPath) { |
| return new ClassSource() { |
| @Override |
| public void eachClass(BiConsumer<String, ClassLoader> consumer) { |
| consumer.accept("foo.Bar", new ClassLoader() { |
| @Override |
| public Class<?> loadClass(String name) throws ClassNotFoundException { |
| loaded.add(name); |
| return null; |
| } |
| }); |
| } |
| }; |
| } |
| }); |
| |
| java.util.List<LoadedClass> search = target.search(list("/tmp/something"), null); |
| Assert.assertEquals(list(new LoadedClass("foo.Bar", null)), search); |
| } |
| |
| @Test(expected = InternalError.class) |
| public void itShouldThrowInternalErrorWhenClassLoaderFails() { |
| ClassLoader classLoader = new ClassLoader() { |
| @Override |
| public Class<?> loadClass(String name1) throws ClassNotFoundException { |
| throw new ClassNotFoundException("failed to find " + name1); |
| } |
| }; |
| |
| ClassSearch target = new ClassSearch(); |
| target.addProvider((name, searchPath) -> consumer -> consumer.accept("foo.Bar", classLoader)); |
| target.search(list("foobar"), null); |
| } |
| |
| private <T> List<T> list(T... entries) { |
| List<T> list = new ArrayList<T>(); |
| for (T entry : entries) { |
| list.add(entry); |
| } |
| return list; |
| } |
| |
| private <T> Set<T> hashset(T... entries) { |
| Set<T> set = new HashSet<T>(); |
| for (T entry : entries) { |
| set.add(entry); |
| } |
| return set; |
| } |
| |
| private static class NoopSource implements ClassSource { |
| @Override |
| public void eachClass(BiConsumer<String, ClassLoader> consumer) { |
| } |
| } |
| } |