132 lines
5.9 KiB
Java
132 lines
5.9 KiB
Java
/*
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* Copyright (c) 2019, 2020, 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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* @run testng TestLayoutConstants
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*/
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import jdk.incubator.foreign.FunctionDescriptor;
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import jdk.incubator.foreign.MemoryLayout;
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import java.lang.invoke.MethodHandles;
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import java.nio.ByteOrder;
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import jdk.incubator.foreign.ValueLayout;
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import org.testng.annotations.*;
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import static org.testng.Assert.*;
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public class TestLayoutConstants {
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@Test(dataProvider = "layouts")
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public void testDescribeResolve(MemoryLayout expected) {
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try {
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MemoryLayout actual = expected.describeConstable().get()
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.resolveConstantDesc(MethodHandles.lookup());
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assertEquals(actual, expected);
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} catch (ReflectiveOperationException ex) {
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throw new AssertionError(ex);
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}
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}
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@Test(dataProvider = "functions")
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public void testDescribeResolveFunction(MemoryLayout layout, boolean isVoid) {
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FunctionDescriptor expected = isVoid ?
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FunctionDescriptor.ofVoid(layout) :
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FunctionDescriptor.of(layout, layout);
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try {
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FunctionDescriptor actual = expected.describeConstable().get()
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.resolveConstantDesc(MethodHandles.lookup());
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assertEquals(actual, expected);
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} catch (ReflectiveOperationException ex) {
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throw new AssertionError(ex);
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}
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}
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@DataProvider(name = "layouts")
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public Object[][] createLayouts() {
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return new Object[][] {
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//padding
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{MemoryLayout.paddingLayout(32)},
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{ MemoryLayout.sequenceLayout(MemoryLayout.paddingLayout(32)) },
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{ MemoryLayout.sequenceLayout(5, MemoryLayout.paddingLayout(32)) },
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{ MemoryLayout.structLayout(MemoryLayout.paddingLayout(32), MemoryLayout.paddingLayout(32)) },
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{ MemoryLayout.unionLayout(MemoryLayout.paddingLayout(32), MemoryLayout.paddingLayout(32)) },
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//values, big endian
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{ ValueLayout.JAVA_INT.withOrder(ByteOrder.BIG_ENDIAN) },
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{ MemoryLayout.structLayout(
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ValueLayout.JAVA_INT.withOrder(ByteOrder.BIG_ENDIAN),
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ValueLayout.JAVA_INT.withOrder(ByteOrder.BIG_ENDIAN)) },
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{ MemoryLayout.unionLayout(
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ValueLayout.JAVA_INT.withOrder(ByteOrder.BIG_ENDIAN),
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ValueLayout.JAVA_INT.withOrder(ByteOrder.BIG_ENDIAN)) },
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//values, little endian
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{ ValueLayout.JAVA_INT.withOrder(ByteOrder.LITTLE_ENDIAN) },
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{ MemoryLayout.structLayout(
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ValueLayout.JAVA_INT.withOrder(ByteOrder.LITTLE_ENDIAN),
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ValueLayout.JAVA_INT.withOrder(ByteOrder.LITTLE_ENDIAN)) },
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{ MemoryLayout.unionLayout(
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ValueLayout.JAVA_INT.withOrder(ByteOrder.LITTLE_ENDIAN),
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ValueLayout.JAVA_INT.withOrder(ByteOrder.LITTLE_ENDIAN)) },
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//deeply nested
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{ MemoryLayout.structLayout(
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MemoryLayout.paddingLayout(16),
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MemoryLayout.structLayout(
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MemoryLayout.paddingLayout(8),
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ValueLayout.JAVA_INT.withOrder(ByteOrder.BIG_ENDIAN))) },
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{ MemoryLayout.unionLayout(
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MemoryLayout.paddingLayout(16),
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MemoryLayout.structLayout(
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MemoryLayout.paddingLayout(8),
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ValueLayout.JAVA_INT.withOrder(ByteOrder.BIG_ENDIAN))) },
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{ MemoryLayout.sequenceLayout(
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MemoryLayout.structLayout(
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MemoryLayout.paddingLayout(8),
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ValueLayout.JAVA_INT.withOrder(ByteOrder.BIG_ENDIAN))) },
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{ MemoryLayout.sequenceLayout(5,
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MemoryLayout.structLayout(
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MemoryLayout.paddingLayout(8),
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ValueLayout.JAVA_INT.withOrder(ByteOrder.BIG_ENDIAN))) },
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{ ValueLayout.JAVA_INT.withOrder(ByteOrder.LITTLE_ENDIAN).withName("myInt") },
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{ ValueLayout.JAVA_INT.withOrder(ByteOrder.LITTLE_ENDIAN).withBitAlignment(8) },
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};
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}
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@DataProvider(name = "functions")
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public Object[][] createFunctions() {
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Object[][] layouts = createLayouts();
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Object[][] functions = new Object[layouts.length * 2][];
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boolean[] values = new boolean[] { true, false };
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for (int i = 0 ; i < layouts.length ; i++) {
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for (boolean isVoid : values) {
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int offset = 0;
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if (isVoid) {
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offset += 1;
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}
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functions[i * 2 + offset] = new Object[] { layouts[i][0], isVoid };
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}
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}
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return functions;
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}
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}
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