153 lines
4.2 KiB
Java
153 lines
4.2 KiB
Java
/*
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* Copyright (c) 2019, 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @modules java.base/jdk.internal.misc
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* @run testng TestValueLayouts
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*/
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import org.testng.annotations.*;
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import java.lang.foreign.*;
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import java.nio.ByteOrder;
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import jdk.internal.misc.Unsafe;
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import static java.lang.foreign.ValueLayout.*;
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import static org.testng.Assert.*;
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public class TestValueLayouts {
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@Test
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public void testByte() {
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testAligned(JAVA_BYTE, byte.class, Byte.BYTES);
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}
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@Test
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public void testBoolean() {
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testAligned(JAVA_BOOLEAN, boolean.class, Byte.BYTES);
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}
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@Test
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public void testShort() {
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testAligned(JAVA_SHORT, short.class, Short.BYTES);
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}
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@Test
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public void testShortUnaligned() {
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testUnaligned(JAVA_SHORT_UNALIGNED, short.class, Short.BYTES);
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}
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@Test
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public void testInt() {
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testAligned(JAVA_INT, int.class, Integer.BYTES);
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}
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@Test
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public void testIntUnaligned() {
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testUnaligned(JAVA_INT_UNALIGNED, int.class, Integer.BYTES);
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}
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@Test
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public void testLong() {
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testAligned(JAVA_LONG, long.class, Long.BYTES, Long.BYTES);
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}
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@Test
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public void testLongUnaligned() {
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testUnaligned(JAVA_LONG_UNALIGNED, long.class, Long.BYTES);
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}
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@Test
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public void testFloat() {
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testAligned(JAVA_FLOAT, float.class, Float.BYTES);
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}
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@Test
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public void testFloatUnaligned() {
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testUnaligned(JAVA_FLOAT_UNALIGNED, float.class, Float.BYTES);
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}
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@Test
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public void testDouble() {
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testAligned(JAVA_DOUBLE, double.class, Double.BYTES, Double.BYTES);
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}
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@Test
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public void testDoubleUnaligned() {
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testUnaligned(JAVA_DOUBLE_UNALIGNED, double.class, Double.BYTES);
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}
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@Test
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public void testChar() {
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testAligned(JAVA_CHAR, char.class, Character.BYTES);
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}
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@Test
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public void testCharUnaligned() {
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testUnaligned(JAVA_CHAR_UNALIGNED, char.class, Character.BYTES);
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}
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@Test
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public void testAddress() {
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testAligned(ADDRESS, MemorySegment.class, Unsafe.ADDRESS_SIZE);
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}
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@Test
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public void testAddressUnaligned() {
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testUnaligned(ADDRESS_UNALIGNED, MemorySegment.class, Unsafe.ADDRESS_SIZE);
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}
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void testAligned(ValueLayout layout,
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Class<?> carrier,
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long byteSize) {
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test(layout, carrier, byteSize, byteSize);
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}
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void testAligned(ValueLayout layout,
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Class<?> carrier,
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long byteSize,
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long byteAlignment) {
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test(layout, carrier, byteSize, byteAlignment);
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}
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void testUnaligned(ValueLayout layout,
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Class<?> carrier,
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long byteSize) {
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test(layout, carrier, byteSize, Byte.BYTES);
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}
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void test(ValueLayout layout,
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Class<?> carrier,
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long byteSize,
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long byteAlignment) {
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assertEquals(layout.carrier(), carrier);
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assertEquals(layout.byteSize(), byteSize);
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assertEquals(layout.order(), ByteOrder.nativeOrder());
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assertEquals(layout.byteAlignment(), byteAlignment);
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assertTrue(layout.name().isEmpty());
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}
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}
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