1 /*
 2  * Copyright (c) 2020, 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 import jdk.incubator.foreign.Addressable;
25 import jdk.incubator.foreign.CLinker;
26 import org.testng.annotations.Test;
27 import java.nio.file.Path;
28 import jdk.incubator.foreign.GroupLayout;
29 import static org.testng.Assert.assertNotNull;
30 import static org.testng.Assert.assertTrue;
31 
32 /*
33  * @test
34  * @modules jdk.incubator.jextract
35  * @library /test/lib
36  * @build JextractToolRunner
37  * @run testng/othervm --enable-native-access=jdk.incubator.jextract UniondeclTest
38  */
39 public class UniondeclTest extends JextractToolRunner {
40     @Test
41     public void unionDecl() {
42         Path uniondeclOutput = getOutputFilePath("uniondecl.h");
43         Path uniondeclH = getInputFilePath("uniondecl.h");
44         run("-d", uniondeclOutput.toString(), uniondeclH.toString()).checkSuccess();
45         try(Loader loader = classLoader(uniondeclOutput)) {
46             Class<?> cls = loader.loadClass("uniondecl_h");
47             // check a method for "void func(IntOrFloat*)"
48             assertNotNull(findMethod(cls, "func", Addressable.class));
49             // check IntOrFloat layout
50             Class<?> intOrFloatCls = loader.loadClass("IntOrFloat");
51             GroupLayout intOrFloatLayout = (GroupLayout)findLayout(intOrFloatCls);
52             assertNotNull(intOrFloatLayout);
53             assertTrue(intOrFloatLayout.isUnion());
54             checkField(intOrFloatLayout, "i",  C_INT);
55             checkField(intOrFloatLayout, "f", C_FLOAT);
56         } finally {
57             deleteDir(uniondeclOutput);
58         }
59     }
60 }