1 /*
2 * Copyright (c) 2019, 2022, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @modules java.base/jdk.internal.misc
27 * @run testng TestValueLayouts
28 */
29
30 import org.testng.annotations.*;
31
32 import java.lang.foreign.*;
33 import java.nio.ByteOrder;
34 import jdk.internal.misc.Unsafe;
35
36 import static java.lang.foreign.ValueLayout.*;
37 import static org.testng.Assert.*;
38
39 public class TestValueLayouts {
40
41 @Test
42 public void testByte() {
43 testAligned(JAVA_BYTE, byte.class, Byte.BYTES);
44 }
45
46 @Test
47 public void testBoolean() {
48 testAligned(JAVA_BOOLEAN, boolean.class, Byte.BYTES);
49 }
50
51 @Test
52 public void testShort() {
53 testAligned(JAVA_SHORT, short.class, Short.BYTES);
54 }
55
56 @Test
57 public void testShortUnaligned() {
58 testUnaligned(JAVA_SHORT_UNALIGNED, short.class, Short.BYTES);
59 }
60
61 @Test
62 public void testInt() {
63 testAligned(JAVA_INT, int.class, Integer.BYTES);
64 }
65
66 @Test
67 public void testIntUnaligned() {
68 testUnaligned(JAVA_INT_UNALIGNED, int.class, Integer.BYTES);
69 }
70
71 @Test
72 public void testLong() {
73 testAligned(JAVA_LONG, long.class, Long.BYTES, ADDRESS.byteSize());
74 }
75
76 @Test
77 public void testLongUnaligned() {
78 testUnaligned(JAVA_LONG_UNALIGNED, long.class, Long.BYTES);
79 }
80
81 @Test
82 public void testFloat() {
83 testAligned(JAVA_FLOAT, float.class, Float.BYTES);
84 }
85
86 @Test
87 public void testFloatUnaligned() {
88 testUnaligned(JAVA_FLOAT_UNALIGNED, float.class, Float.BYTES);
89 }
90
91 @Test
92 public void testDouble() {
93 testAligned(JAVA_DOUBLE, double.class, Double.BYTES, ADDRESS.byteSize());
94 }
95
96 @Test
97 public void testDoubleUnaligned() {
98 testUnaligned(JAVA_DOUBLE_UNALIGNED, double.class, Double.BYTES);
99 }
100
101 @Test
102 public void testChar() {
103 testAligned(JAVA_CHAR, char.class, Character.BYTES);
104 }
105
106 @Test
107 public void testCharUnaligned() {
108 testUnaligned(JAVA_CHAR_UNALIGNED, char.class, Character.BYTES);
109 }
110
111 @Test
112 public void testAddress() {
113 testAligned(ADDRESS, MemorySegment.class, Unsafe.ADDRESS_SIZE);
114 }
115
116 @Test
117 public void testAddressUnaligned() {
118 testUnaligned(ADDRESS_UNALIGNED, MemorySegment.class, Unsafe.ADDRESS_SIZE);
119 }
120
121 void testAligned(ValueLayout layout,
122 Class<?> carrier,
123 long byteSize) {
124 test(layout, carrier, byteSize, byteSize);
125 }
126
127 void testAligned(ValueLayout layout,
128 Class<?> carrier,
129 long byteSize,
130 long byteAlignment) {
131 test(layout, carrier, byteSize, byteAlignment);
132 }
133
134 void testUnaligned(ValueLayout layout,
135 Class<?> carrier,
136 long byteSize) {
137 test(layout, carrier, byteSize, Byte.BYTES);
138 }
139
140 void test(ValueLayout layout,
141 Class<?> carrier,
142 long byteSize,
143 long byteAlignment) {
144 assertEquals(layout.carrier(), carrier);
145 assertEquals(layout.byteSize(), byteSize);
146 assertEquals(layout.order(), ByteOrder.nativeOrder());
147 assertEquals(layout.byteAlignment(), byteAlignment);
148 assertTrue(layout.name().isEmpty());
149
150 }
151
152 }