| /* |
| * Copyright (c) 2012, 2013, 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. |
| */ |
| |
| |
| import java.util.Arrays; |
| import java.util.function.Function; |
| import java.util.stream.Collectors; |
| import java.util.stream.Stream; |
| |
| import org.testng.annotations.Test; |
| |
| import static org.testng.Assert.assertEquals; |
| |
| @Test(groups = "lib") |
| public class MethodReferenceTestInstanceMethod { |
| public Stream<String> generate() { |
| return Arrays.asList("one", "two", "three", "four", "five", "six") |
| .stream() |
| .filter(s->s.length() > 3) |
| .map(s -> s.toUpperCase()); |
| } |
| |
| class Thingy<T,U> { |
| U blah(Function<T, U> m, T val) { |
| return m.apply(val); |
| } |
| } |
| |
| public void testStringBuffer() { |
| String s = generate().collect(Collectors.joining()); |
| assertEquals(s, "THREEFOURFIVE"); |
| } |
| |
| public void testMRInstance() { |
| Thingy<String,String> t = new Thingy<>(); |
| assertEquals(t.blah(String::toUpperCase, "frogs"), "FROGS"); |
| } |
| |
| } |