1 /*
2 * Copyright (c) 2019, 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 * @run testng TestLayoutConstants
27 */
28
29 import jdk.incubator.foreign.MemoryLayouts;
30 import jdk.incubator.foreign.MemoryLayout;
31
32 import java.lang.invoke.MethodHandles;
33
34 import org.testng.annotations.*;
35 import static org.testng.Assert.*;
36
37 public class TestLayoutConstants {
38
39 @Test(dataProvider = "layouts")
40 public void testDescribeResolve(MemoryLayout expected) {
41 try {
42 MemoryLayout actual = expected.describeConstable().get()
43 .resolveConstantDesc(MethodHandles.lookup());
44 assertEquals(actual, expected);
45 } catch (ReflectiveOperationException ex) {
46 throw new AssertionError(ex);
47 }
48 }
49
50 @DataProvider(name = "layouts")
51 public Object[][] createLayouts() {
52 return new Object[][] {
53 //padding
54 { MemoryLayouts.PAD_32 },
55 { MemoryLayout.ofSequence(MemoryLayouts.PAD_32) },
56 { MemoryLayout.ofSequence(5, MemoryLayouts.PAD_32) },
57 { MemoryLayout.ofStruct(MemoryLayouts.PAD_32, MemoryLayouts.PAD_32) },
58 { MemoryLayout.ofUnion(MemoryLayouts.PAD_32, MemoryLayouts.PAD_32) },
59 //values, big endian
60 { MemoryLayouts.BITS_32_BE },
61 { MemoryLayout.ofStruct(
62 MemoryLayouts.BITS_32_BE,
63 MemoryLayouts.BITS_32_BE) },
64 { MemoryLayout.ofUnion(
65 MemoryLayouts.BITS_32_BE,
66 MemoryLayouts.BITS_32_BE) },
67 //values, little endian
68 { MemoryLayouts.BITS_32_LE },
69 { MemoryLayout.ofStruct(
70 MemoryLayouts.BITS_32_LE,
71 MemoryLayouts.BITS_32_LE) },
72 { MemoryLayout.ofUnion(
73 MemoryLayouts.BITS_32_LE,
74 MemoryLayouts.BITS_32_LE) },
75 //deeply nested
76 { MemoryLayout.ofStruct(
77 MemoryLayouts.PAD_16,
78 MemoryLayout.ofStruct(
79 MemoryLayouts.PAD_8,
80 MemoryLayouts.BITS_32_BE)) },
81 { MemoryLayout.ofUnion(
82 MemoryLayouts.PAD_16,
83 MemoryLayout.ofStruct(
84 MemoryLayouts.PAD_8,
85 MemoryLayouts.BITS_32_BE)) },
86 { MemoryLayout.ofSequence(
87 MemoryLayout.ofStruct(
88 MemoryLayouts.PAD_8,
89 MemoryLayouts.BITS_32_BE)) },
90 { MemoryLayout.ofSequence(5,
91 MemoryLayout.ofStruct(
92 MemoryLayouts.PAD_8,
93 MemoryLayouts.BITS_32_BE)) },
94 };
95 }
96 }