Quellcode-Bibliothek TestIllegalLink.java Sprache: JAVA

/*
*  Copyright (c) 2020, 2022, 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
* @enablePreview
* @requires ((os.arch == "amd64" | os.arch == "x86_64") & sun.arch.data.model == "64") | os.arch == "aarch64"
* @run testng/othervm --enable-native-access=ALL-UNNAMED TestIllegalLink
*/

import java.lang.foreign.Linker;
import java.lang.foreign.FunctionDescriptor;
import java.lang.foreign.MemorySegment;
import java.lang.foreign.MemoryLayout;
import java.nio.ByteOrder;

import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;

import static org.testng.Assert.assertTrue;
import static org.testng.Assert.fail;

public class TestIllegalLink extends NativeTestHelper {

    private static final MemorySegment DUMMY_TARGET = MemorySegment.ofAddress(1);
    private static final Linker ABI = Linker.nativeLinker();

    @Test(dataProvider = "types")
    public void testTypeMismatch(FunctionDescriptor desc, String expectedExceptionMessage) {
        try {
            ABI.downcallHandle(DUMMY_TARGET, desc);
            fail("Expected IllegalArgumentException was not thrown");
        } catch (IllegalArgumentException e) {
            assertTrue(e.getMessage().contains(expectedExceptionMessage),
                    e.getMessage() + " != " + expectedExceptionMessage);
        }
    }

    @DataProvider
    public static Object[][] types() {
        return new Object[][]{
            {
                    FunctionDescriptor.of(MemoryLayout.paddingLayout(64)),
                    "Unsupported layout: x64"
            },
            {
                    FunctionDescriptor.ofVoid(MemoryLayout.paddingLayout(64)),
                    "Unsupported layout: x64"
            },
            {
                    FunctionDescriptor.of(MemoryLayout.sequenceLayout(2, C_INT)),
                    "Unsupported layout: [2:i32]"
            },
            {
                    FunctionDescriptor.ofVoid(MemoryLayout.sequenceLayout(2, C_INT)),
                    "Unsupported layout: [2:i32]"
            },
            {
                    FunctionDescriptor.ofVoid(C_INT.withBitAlignment(16)),
                    "Layout bit alignment must be natural alignment"
            },
            {
                    FunctionDescriptor.ofVoid(C_POINTER.withBitAlignment(16)),
                    "Layout bit alignment must be natural alignment"
            },
            {
                    FunctionDescriptor.ofVoid(MemoryLayout.valueLayout(char.class, ByteOrder.nativeOrder()).withBitAlignment(32)),
                    "Layout bit alignment must be natural alignment"
            },
            {
                    FunctionDescriptor.ofVoid(MemoryLayout.structLayout(
                            C_CHAR.withName("x").withBitAlignment(8),
                            C_SHORT.withName("y").withBitAlignment(8),
                            C_INT.withName("z").withBitAlignment(8)
                            ).withBitAlignment(8)),
                    "Layout bit alignment must be natural alignment"
            },
            {
                    FunctionDescriptor.ofVoid(MemoryLayout.structLayout(
                            MemoryLayout.structLayout(
                                C_CHAR.withName("x").withBitAlignment(8),
                                C_SHORT.withName("y").withBitAlignment(8),
                                C_INT.withName("z").withBitAlignment(8)
                            ))),
                    "Layout bit alignment must be natural alignment"
            },
            {
                    FunctionDescriptor.ofVoid(MemoryLayout.structLayout(
                            MemoryLayout.sequenceLayout(
                                C_INT.withBitAlignment(8)
                            ))),
                    "Layout bit alignment must be natural alignment"
            },
        };
    }

}

quality100%

¤ Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.0.14Bemerkung: (vorverarbeitet) ¤

*Bot Zugriff

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.