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 java.lang.reflect.Field;
25 import java.lang.reflect.Method;
26 import java.nio.file.Path;
27 import org.testng.annotations.Test;
28 import static org.testng.Assert.assertEquals;
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  * @bug 8240752
38  * @summary jextract generates non-compilable code for special floating point values
39  * @run testng/othervm --enable-native-access=jdk.incubator.jextract,ALL-UNNAMED Test8240752
40  */
41 public class Test8240752 extends JextractToolRunner {
42     private float getFloatConstant(Class<?> cls, String name) {
43         Method method = findMethod(cls, name);
44         assertNotNull(method);
45         assertEquals(method.getReturnType(), float.class);
46         try {
47             return (float)method.invoke(null);
48         } catch (Exception exp) {
49             System.err.println(exp);
50             assertTrue(false, "should not reach here");
51         }
52         return 0.0f;
53     }
54 
55     private double getDoubleConstant(Class<?> cls, String name) {
56         Method method = findMethod(cls, name);
57         assertNotNull(method);
58         assertEquals(method.getReturnType(), double.class);
59         try {
60             return (double)method.invoke(null);
61         } catch (Exception exp) {
62             System.err.println(exp);
63             assertTrue(false, "should not reach here");
64         }
65         return 0.0d;
66     }
67 
68     @Test
69     public void testConstants() {
70         Path floatConstsOutput = getOutputFilePath("floatconstsgen");
71         Path floatConstsH = getInputFilePath("float_constants.h");
72         run("-d", floatConstsOutput.toString(), floatConstsH.toString()).checkSuccess();
73         try(Loader loader = classLoader(floatConstsOutput)) {
74             Class<?> cls = loader.loadClass("float_constants_h");
75             assertNotNull(cls);
76 
77             double d = getDoubleConstant(cls, "NAN");
78             assertTrue(Double.isNaN(d));
79             d = getDoubleConstant(cls, "PINFINITY");
80             assertTrue(Double.isInfinite(d) && d > 0);
81             d = getDoubleConstant(cls, "NINFINITY");
82             assertTrue(Double.isInfinite(d) && d < 0);
83 
84             float f = getFloatConstant(cls, "NANF");
85             assertTrue(Float.isNaN(f));
86             f = getFloatConstant(cls, "PINFINITYF");
87             assertTrue(Float.isInfinite(f) && f > 0);
88             f = getFloatConstant(cls, "NINFINITYF");
89             assertTrue(Float.isInfinite(f) && f < 0);
90         } finally {
91             deleteDir(floatConstsOutput);
92         }
93     }
94 }