| /* |
| * Copyright (c) 2013, 2018, 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. |
| */ |
| |
| /* @test |
| * @bug 8195649 |
| * @summary Basic functional test of OptionalLong |
| * @author Mike Duigou |
| * @build ObscureException |
| * @run testng BasicLong |
| */ |
| |
| import java.util.NoSuchElementException; |
| import java.util.OptionalLong; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| |
| import static org.testng.Assert.*; |
| import org.testng.annotations.Test; |
| |
| public class BasicLong { |
| static final long LONGVAL = 2_305_843_008_139_952_128L; |
| static final long UNEXPECTED = 0xFEEDBEEFCAFEBABEL; |
| |
| /** |
| * Checks a block of assertions over an empty OptionalLong. |
| */ |
| void checkEmpty(OptionalLong empty) { |
| assertTrue(empty.equals(OptionalLong.empty())); |
| assertTrue(OptionalLong.empty().equals(empty)); |
| assertFalse(empty.equals(OptionalLong.of(UNEXPECTED))); |
| assertFalse(OptionalLong.of(UNEXPECTED).equals(empty)); |
| assertFalse(empty.equals("unexpected")); |
| |
| assertFalse(empty.isPresent()); |
| assertTrue(empty.isEmpty()); |
| assertEquals(empty.hashCode(), 0); |
| assertEquals(empty.orElse(UNEXPECTED), UNEXPECTED); |
| assertEquals(empty.orElseGet(() -> UNEXPECTED), UNEXPECTED); |
| |
| assertThrows(NoSuchElementException.class, () -> empty.getAsLong()); |
| assertThrows(NoSuchElementException.class, () -> empty.orElseThrow()); |
| assertThrows(ObscureException.class, () -> empty.orElseThrow(ObscureException::new)); |
| |
| var b = new AtomicBoolean(); |
| empty.ifPresent(s -> b.set(true)); |
| assertFalse(b.get()); |
| |
| var b1 = new AtomicBoolean(false); |
| var b2 = new AtomicBoolean(false); |
| empty.ifPresentOrElse(s -> b1.set(true), () -> b2.set(true)); |
| assertFalse(b1.get()); |
| assertTrue(b2.get()); |
| |
| assertEquals(empty.toString(), "OptionalLong.empty"); |
| } |
| |
| /** |
| * Checks a block of assertions over an OptionalLong that is expected to |
| * have a particular value present. |
| */ |
| void checkPresent(OptionalLong opt, long expected) { |
| assertFalse(opt.equals(OptionalLong.empty())); |
| assertFalse(OptionalLong.empty().equals(opt)); |
| assertTrue(opt.equals(OptionalLong.of(expected))); |
| assertTrue(OptionalLong.of(expected).equals(opt)); |
| assertFalse(opt.equals(OptionalLong.of(UNEXPECTED))); |
| assertFalse(OptionalLong.of(UNEXPECTED).equals(opt)); |
| assertFalse(opt.equals("unexpected")); |
| |
| assertTrue(opt.isPresent()); |
| assertFalse(opt.isEmpty()); |
| assertEquals(opt.hashCode(), Long.hashCode(expected)); |
| assertEquals(opt.orElse(UNEXPECTED), expected); |
| assertEquals(opt.orElseGet(() -> UNEXPECTED), expected); |
| |
| assertEquals(opt.getAsLong(), expected); |
| assertEquals(opt.orElseThrow(), expected); |
| assertEquals(opt.orElseThrow(ObscureException::new), expected); |
| |
| var b = new AtomicBoolean(false); |
| opt.ifPresent(s -> b.set(true)); |
| assertTrue(b.get()); |
| |
| var b1 = new AtomicBoolean(false); |
| var b2 = new AtomicBoolean(false); |
| opt.ifPresentOrElse(s -> b1.set(true), () -> b2.set(true)); |
| assertTrue(b1.get()); |
| assertFalse(b2.get()); |
| |
| assertEquals(opt.toString(), "OptionalLong[" + expected + "]"); |
| } |
| |
| @Test(groups = "unit") |
| public void testEmpty() { |
| checkEmpty(OptionalLong.empty()); |
| } |
| |
| @Test(groups = "unit") |
| public void testPresent() { |
| checkPresent(OptionalLong.of(LONGVAL), LONGVAL); |
| } |
| |
| @Test(groups = "unit") |
| public void testStreamEmpty() { |
| assertEquals(OptionalLong.empty().stream().toArray(), new long[] { }); |
| } |
| |
| @Test(groups = "unit") |
| public void testStreamPresent() { |
| assertEquals(OptionalLong.of(LONGVAL).stream().toArray(), new long[] { LONGVAL }); |
| } |
| } |