/* * 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 */ package test.java.util.Optional; // Android-added: support for wrapper to avoid d8 backporting of Optional methods (b/191859202). import java.lang.invoke.MethodHandle; import java.lang.invoke.MethodHandles; import java.lang.invoke.MethodType; import java.util.function.LongConsumer; import java.util.stream.LongStream; 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()); // Android-changed: Avoid backporting of isEmpty()) (b/191859202). // assertTrue(empty.isEmpty()); assertTrue(OptionalLong_isEmpty(empty)); assertEquals(empty.hashCode(), 0); assertEquals(empty.orElse(UNEXPECTED), UNEXPECTED); assertEquals(empty.orElseGet(() -> UNEXPECTED), UNEXPECTED); assertThrows(NoSuchElementException.class, () -> empty.getAsLong()); // Android-changed: Avoid backporting of orElseThrow()) (b/191859202). // assertThrows(NoSuchElementException.class, () -> empty.orElseThrow()); assertThrows(NoSuchElementException.class, () -> OptionalLong_orElseThrow(empty)); 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); // Android-changed: Avoid backporting of ifPresentOrElse() (b/191859202). // empty.ifPresentOrElse(s -> b1.set(true), () -> b2.set(true)); OptionalLong_ifPresentOrElse(empty, 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()); // Android-changed: Avoid backporting of isEmpty()) (b/191859202). // assertFalse(opt.isEmpty()); assertFalse(OptionalLong_isEmpty(opt)); assertEquals(opt.hashCode(), Long.hashCode(expected)); assertEquals(opt.orElse(UNEXPECTED), expected); assertEquals(opt.orElseGet(() -> UNEXPECTED), expected); assertEquals(opt.getAsLong(), expected); // Android-changed: Avoid backporting of orElseThrow()) (b/191859202). // assertEquals(opt.orElseThrow(), expected); assertEquals(OptionalLong_orElseThrow(opt), 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); // Android-changed: Avoid backporting of ifPresentOrElse() (b/191859202). // opt.ifPresentOrElse(s -> b1.set(true), () -> b2.set(true)); OptionalLong_ifPresentOrElse(opt, 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 public void testStreamEmpty() { // Android-changed: Avoid backporting of stream() (b/191859202). // assertEquals(OptionalLong.empty().stream().toArray(), new long[] { }); assertEquals(OptionalLong_stream(OptionalLong.empty()).toArray(), new long[] { }); } @Test public void testStreamPresent() { // Android-changed: Avoid backporting of stream() (b/191859202). // assertEquals(OptionalLong.of(LONGVAL).stream().toArray(), new long[] { LONGVAL }); assertEquals(OptionalLong_stream(OptionalLong.of(LONGVAL)).toArray(), new long[] { LONGVAL }); } // Android-added: wrapper for d8 backport of OptionalLong.ifPresentOrElse() (b/191859202). private static void OptionalLong_ifPresentOrElse( OptionalLong receiver, LongConsumer action, Runnable emptyAction) { try { MethodType type = MethodType.methodType(void.class, LongConsumer.class, Runnable.class); MethodHandle mh = MethodHandles.lookup().findVirtual(OptionalLong.class, "ifPresentOrElse", type); mh.invokeExact(receiver, action, emptyAction); } catch (Throwable t) { throw new RuntimeException(t); } } // Android-added: wrapper to avoid d8 backport of OptionalLong.isEmpty() (b/191859202). private static boolean OptionalLong_isEmpty(OptionalLong receiver) { try { MethodType type = MethodType.methodType(boolean.class); MethodHandle mh = MethodHandles.lookup().findVirtual(OptionalLong.class, "isEmpty", type); return (boolean) mh.invokeExact(receiver); } catch (Throwable t) { throw new RuntimeException(t); } } // Android-added: wrapper to avoid d8 backport of OptionalLong.orElseThrow() (b/191859202). private static long OptionalLong_orElseThrow(OptionalLong receiver) { try { MethodType type = MethodType.methodType(long.class); MethodHandle mh = MethodHandles.lookup().findVirtual(OptionalLong.class, "orElseThrow", type); return (long) mh.invokeExact(receiver); } catch (NoSuchElementException expected) { throw expected; // Underlying method may throw NoSuchElementException } catch (Throwable t) { throw new RuntimeException(t); } } // Android-added: wrapper to avoid d8 backport of OptionalLong.stream() (b/191859202). private static LongStream OptionalLong_stream(OptionalLong receiver) { try { MethodType type = MethodType.methodType(LongStream.class); MethodHandle mh = MethodHandles.lookup().findVirtual(OptionalLong.class, "stream", type); return (LongStream) mh.invokeExact(receiver); } catch (Throwable t) { throw new RuntimeException(t); } } }