Aprog/test/net/sourceforge/aprog/context/ContextTest.java

   1 /*
   2  *  The MIT License
   3  *
   4  *  Copyright 2010 Codist Monk.
   5  *
   6  *  Permission is hereby granted, free of charge, to any person obtaining a copy
   7  *  of this software and associated documentation files (the "Software"), to deal
   8  *  in the Software without restriction, including without limitation the rights
   9  *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  *  copies of the Software, and to permit persons to whom the Software is
  11  *  furnished to do so, subject to the following conditions:
  12  *
  13  *  The above copyright notice and this permission notice shall be included in
  14  *  all copies or substantial portions of the Software.
  15  *
  16  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  19  *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  *  THE SOFTWARE.
  23  */
  24
  25 package net.sourceforge.aprog.context;
  26
  27 import static org.junit.Assert.*;
  28
  29 import net.sourceforge.aprog.context.Context.Listener;
  30 import net.sourceforge.aprog.events.ObservableTest;
  31 import net.sourceforge.aprog.events.ObservableTest.EventRecorder;
  32 import org.junit.Test;
  33
  34 /**
  35  *
  36  * @author codistmonk (creation 2010-06-23)
  37  */
  38 public final class ContextTest {
  39
  40     @Test
  41     public final <R extends EventRecorder & Listener> void testSetAndGet() {
  42         final Context context = new Context();
  43         @SuppressWarnings("unchecked")
  44         final R recorder = (R) ObservableTest.newEventRecorder(Context.Listener.class);
  45
  46         context.addListener(recorder);
  47
  48         assertNull(context.set("x", 42));
  49         assertNull(context.set("y", "z"));
  50         assertEquals(42, (Object) context.set("x", 33));
  51
  52         assertEquals(33, context.get("x"));
  53         assertEquals("z", context.get("y"));
  54
  55         context.remove("x");
  56         context.remove("y");
  57
  58         assertTrue(recorder.getEvents().get(0) instanceof Context.VariableAddedEvent<?>);
  59         assertTrue(recorder.getEvents().get(1) instanceof Context.VariableAddedEvent<?>);
  60         assertTrue(recorder.getEvents().get(2) instanceof Context.VariableRemovedEvent<?>);
  61         assertTrue(recorder.getEvents().get(3) instanceof Context.VariableRemovedEvent<?>);
  62         assertEquals(4, recorder.getEvents().size());
  63    }
  64
  65 }