1 /*
   2  * Copyright (c) 2011, 2013, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package test.javafx.beans.property;
  27 
  28 import static org.junit.Assert.assertEquals;
  29 import static org.junit.Assert.assertFalse;
  30 import static org.junit.Assert.assertTrue;
  31 import javafx.beans.InvalidationListener;
  32 import javafx.beans.binding.ObjectExpression;
  33 import javafx.beans.property.ReadOnlyDoubleProperty;
  34 import javafx.beans.property.ReadOnlyDoubleWrapper;
  35 import javafx.beans.property.ReadOnlyObjectProperty;
  36 import javafx.beans.property.ReadOnlyObjectWrapper;
  37 import javafx.beans.value.ChangeListener;
  38 import static org.junit.Assert.assertEquals;
  39 
  40 import org.junit.Before;
  41 import org.junit.Test;
  42 
  43 public class ReadOnlyDoublePropertyTest {
  44 
  45     private static final double DEFAULT = 0.0;
  46     private static final float EPSILON = 1e-6f;
  47 
  48     @Before
  49     public void setUp() throws Exception {
  50     }
  51 
  52     @Test
  53     public void testToString() {
  54         final ReadOnlyDoubleProperty v1 = new ReadOnlyDoublePropertyStub(null, "");
  55         assertEquals("ReadOnlyDoubleProperty [value: " + DEFAULT + "]", v1.toString());
  56         
  57         final ReadOnlyDoubleProperty v2 = new ReadOnlyDoublePropertyStub(null, null);
  58         assertEquals("ReadOnlyDoubleProperty [value: " + DEFAULT + "]", v2.toString());
  59         
  60         final Object bean = new Object();
  61         final String name = "My name";
  62         final ReadOnlyDoubleProperty v3 = new ReadOnlyDoublePropertyStub(bean, name);
  63         assertEquals("ReadOnlyDoubleProperty [bean: " + bean.toString() + ", name: My name, value: " + DEFAULT + "]", v3.toString());
  64         
  65         final ReadOnlyDoubleProperty v4 = new ReadOnlyDoublePropertyStub(bean, "");
  66         assertEquals("ReadOnlyDoubleProperty [bean: " + bean.toString() + ", value: " + DEFAULT + "]", v4.toString());
  67         
  68         final ReadOnlyDoubleProperty v5 = new ReadOnlyDoublePropertyStub(bean, null);
  69         assertEquals("ReadOnlyDoubleProperty [bean: " + bean.toString() + ", value: " + DEFAULT + "]", v5.toString());
  70         
  71         final ReadOnlyDoubleProperty v6 = new ReadOnlyDoublePropertyStub(null, name);
  72         assertEquals("ReadOnlyDoubleProperty [name: My name, value: " + DEFAULT + "]", v6.toString());
  73         
  74     }
  75     
  76     @Test
  77     public void testAsObject() {
  78         final ReadOnlyDoubleWrapper valueModel = new ReadOnlyDoubleWrapper();
  79         final ReadOnlyObjectProperty<Double> exp = valueModel.getReadOnlyProperty().asObject();
  80 
  81         assertEquals(0.0, exp.getValue(), EPSILON);
  82         valueModel.set(-4354.3);
  83         assertEquals(-4354.3, exp.getValue(), EPSILON);
  84         valueModel.set(5e11);
  85         assertEquals(5e11, exp.getValue(), EPSILON);
  86     }
  87     
  88     @Test
  89     public void testObjectToDouble() {
  90         final ReadOnlyObjectWrapper<Double> valueModel = new ReadOnlyObjectWrapper<Double>();
  91         final ReadOnlyDoubleProperty exp = ReadOnlyDoubleProperty.readOnlyDoubleProperty(valueModel.getReadOnlyProperty());
  92         
  93 
  94         assertEquals(0.0, exp.doubleValue(), EPSILON);
  95         valueModel.set(-4354.3);
  96         assertEquals(-4354.3, exp.doubleValue(), EPSILON);
  97         valueModel.set(5e11);
  98         assertEquals(5e11, exp.doubleValue(), EPSILON);
  99     }
 100     
 101     private static class ReadOnlyDoublePropertyStub extends ReadOnlyDoubleProperty {
 102         
 103         private final Object bean;
 104         private final String name;
 105         
 106         private ReadOnlyDoublePropertyStub(Object bean, String name) {
 107             this.bean = bean;
 108             this.name = name;
 109         }
 110 
 111         @Override public Object getBean() { return bean; }
 112         @Override public String getName() { return name; }
 113         @Override public double get() { return 0.0; }
 114 
 115         @Override
 116         public void addListener(ChangeListener<? super Number> listener) {
 117         }
 118 
 119         @Override
 120         public void removeListener(ChangeListener<? super Number> listener) {
 121         }
 122 
 123         @Override
 124         public void addListener(InvalidationListener listener) {
 125         }
 126 
 127         @Override
 128         public void removeListener(InvalidationListener listener) {
 129         }
 130         
 131     }
 132 
 133 }