1 // Tags: JDK1.4

     2 

     3 // Copyright (C) 2004 Sascha Brawer <brawer@dandelis.ch>

     4 

     5 // This file is part of Mauve.

     6 

     7 // Mauve is free software; you can redistribute it and/or modify

     8 // it under the terms of the GNU General Public License as published by

     9 // the Free Software Foundation; either version 2, or (at your option)

    10 // any later version.

    11 

    12 // Mauve is distributed in the hope that it will be useful,

    13 // but WITHOUT ANY WARRANTY; without even the implied warranty of

    14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    15 // GNU General Public License for more details.

    16 

    17 // You should have received a copy of the GNU General Public License

    18 // along with Mauve; see the file COPYING.  If not, write to

    19 // the Free Software Foundation, 59 Temple Place - Suite 330,

    20 // Boston, MA 02111-1307, USA.

    21 

    22 package gnu.testlet.javax.imageio.spi.ServiceRegistry;

    23 

    24 import gnu.testlet.Testlet;

    25 import gnu.testlet.TestHarness;

    26 

    27 import java.util.*;

    28 

    29 import javax.imageio.spi.RegisterableService;

    30 import javax.imageio.spi.ServiceRegistry;

    31 

    32 /**

    33  * @author <a href="mailto:brawer@dandelis.ch">Sascha Brawer</a>

    34  */

    35 public class getServiceProviderByClass

    36   implements Testlet

    37 {

    38   public void test(TestHarness h)

    39   {

    40     Throwable caught;

    41     ServiceRegistry registry;

    42     List categories;

    43 

    44     // Set-up.

    45     categories = new LinkedList();

    46     categories.add(String.class);

    47     categories.add(RegisterableService.class);

    48     registry = new ServiceRegistry(categories.iterator());

    49     registry.registerServiceProvider("foo", String.class);

    50     registry.registerServiceProvider("bar", String.class);

    51 

    52     // Check #1.

    53     caught = null;

    54     try

    55       {

    56         registry.getServiceProviderByClass(null);

    57       }

    58     catch (Exception ex)

    59       {

    60         caught = ex;

    61       }

    62     h.check(caught instanceof IllegalArgumentException);

    63 

    64     // Check #2.

    65     h.check(registry.getServiceProviderByClass(RegisterableService.class),

    66             null);

    67 

    68     // Check #3.

    69     Object sp = registry.getServiceProviderByClass(String.class);

    70     h.check(sp == "foo" || sp == "bar");

    71   }

    72 }