SelectBestTextFlavorBadArrayTest.java revision 12278:6fb5ee377870 
1/*
2 * Copyright (c) 2014, 2015, 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  @test
26  @bug 4386360
27  @summary tests that DataFlavor.selectBestTextFlavor() returns null when passed
28           is a null array or an empty array or an array which doesn't contain
29           a text flavor in a supported encoding.
30  @author das@sparc.spb.su area=datatransfer
31  @modules java.datatransfer
32  @run main SelectBestTextFlavorBadArrayTest
33*/
34
35import java.awt.datatransfer.DataFlavor;
36import java.util.Stack;
37import java.util.stream.Collectors;
38
39public class SelectBestTextFlavorBadArrayTest {
40
41    public static void main(String[] args) {
42        final String[] failureMessages = {
43            "DataFlavor.selectBestTextFlavor(null) doesn't return null.",
44            "DataFlavor.selectBestTextFlavor() doesn't return null for an empty array.",
45            "DataFlavor.selectBestTextFlavor() shouldn't return flavor in an unsupported encoding."
46        };
47        Stack<String> failures = new Stack<>();
48
49        DataFlavor flavor = DataFlavor.selectBestTextFlavor(null);
50        if (flavor != null) {
51            failures.push(failureMessages[0]);
52        }
53        flavor = DataFlavor.selectBestTextFlavor(new DataFlavor[0]);
54        if (flavor != null) {
55            failures.push(failureMessages[1]);
56        }
57
58        try {
59            flavor = DataFlavor.selectBestTextFlavor(new DataFlavor[]
60                { new DataFlavor("text/plain; charset=unsupported; class=java.io.InputStream") });
61        } catch (ClassNotFoundException e) {
62            e.printStackTrace();
63            failures.push("Exception thrown: " + e.toString());
64        }
65        if (flavor != null) {
66            failures.push(failureMessages[2]);
67        }
68
69        if (failures.size() > 0) {
70            String failureReport = failures.stream().collect(Collectors.joining("\n"));
71            throw new RuntimeException("TEST FAILED: \n" + failureReport);
72        }
73    }
74}
75