1 /*
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   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
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  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).
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  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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  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 
  35 import java.awt.datatransfer.DataFlavor;
  36 import java.util.Stack;
  37 import java.util.stream.Collectors;
  38 
  39 public 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 }