1 /*
 2  * Copyright (c) 2021, 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 
25 import jdk.incubator.foreign.CLinker;
26 import jdk.incubator.foreign.MemorySegment;
27 
28 import jdk.incubator.foreign.ResourceScope;
29 import org.testng.annotations.*;
30 import static org.testng.Assert.*;
31 
32 /*
33  * @test
34  * @requires ((os.arch == "amd64" | os.arch == "x86_64") & sun.arch.data.model == "64") | os.arch == "aarch64"
35  * @run testng TestStringEncoding
36  */
37 
38 public class TestStringEncoding {
39 
40     @Test(dataProvider = "strings")
41     public void testStrings(String testString, int expectedByteLength) {
42         try (ResourceScope scope = ResourceScope.newConfinedScope()) {
43             MemorySegment text = CLinker.toCString(testString, scope);
44 
45             assertEquals(text.byteSize(), expectedByteLength);
46 
47             String roundTrip = CLinker.toJavaString(text);
48             assertEquals(roundTrip, testString);
49         }
50     }
51 
52     @DataProvider
53     public static Object[][] strings() {
54         return new Object[][] {
55             { "testing",               8 },
56             { "",                      1 },
57             { "X",                     2 },
58             { "12345",                 6 },
59             { "yen \u00A5",            7 }, // in UTF-8 2 bytes: 0xC2 0xA5
60             { "snowman \u26C4",       12 }, // in UTF-8 three bytes: 0xE2 0x9B 0x84
61             { "rainbow \uD83C\uDF08", 13 }  // in UTF-8 four bytes: 0xF0 0x9F 0x8C 0x88
62         };
63     }
64 }