jdk-24/test/jdk/java/foreign/TestIllegalLink.java

/*
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 *  DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 *  This code is free software; you can redistribute it and/or modify it
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 *  published by the Free Software Foundation.
 *
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 *  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).
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 *  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.
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/*
 * @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.Addressable;
import java.lang.foreign.Linker;
import java.lang.foreign.FunctionDescriptor;
import java.lang.foreign.MemoryAddress;
import java.lang.foreign.MemoryLayout;
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 Addressable DUMMY_TARGET = MemoryAddress.ofLong(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));
        }
    }

    @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]"
            },
        };
    }

}