64 lines
2.2 KiB
Java
64 lines
2.2 KiB
Java
/*
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* Copyright (c) 2020, 2023, 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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* @enablePreview
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* @requires jdk.foreign.linker != "UNSUPPORTED"
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* @run testng/othervm --enable-native-access=ALL-UNNAMED TestClassLoaderFindNative
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*/
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import java.lang.foreign.MemorySegment;
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import java.lang.foreign.SymbolLookup;
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import org.testng.annotations.Test;
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import static java.lang.foreign.ValueLayout.JAVA_BYTE;
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import static org.testng.Assert.*;
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// FYI this test is run on 64-bit platforms only for now,
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// since the windows 32-bit linker fails and there
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// is some fallback behaviour to use the 64-bit linker,
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// where cygwin gets in the way and we accidentally pick up its
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// link.exe
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public class TestClassLoaderFindNative {
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static {
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System.loadLibrary("LookupTest");
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}
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@Test
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public void testSimpleLookup() {
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assertFalse(SymbolLookup.loaderLookup().find("f").isEmpty());
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}
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@Test
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public void testInvalidSymbolLookup() {
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assertTrue(SymbolLookup.loaderLookup().find("nonExistent").isEmpty());
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}
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@Test
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public void testVariableSymbolLookup() {
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MemorySegment segment = SymbolLookup.loaderLookup().find("c").get().reinterpret(1);
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assertEquals(segment.get(JAVA_BYTE, 0), 42);
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}
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}
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