1 /*
   2  * Copyright (c) 2012, 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.  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.binding;
  27 
  28 import java.util.Arrays;
  29 import java.util.Collection;
  30 import java.util.concurrent.Callable;
  31 import javafx.beans.Observable;
  32 import javafx.beans.binding.Binding;
  33 import javafx.beans.binding.Bindings;
  34 import javafx.beans.property.Property;
  35 import javafx.beans.property.SimpleBooleanProperty;
  36 import javafx.beans.property.SimpleDoubleProperty;
  37 import javafx.beans.property.SimpleFloatProperty;
  38 import javafx.beans.property.SimpleIntegerProperty;
  39 import javafx.beans.property.SimpleLongProperty;
  40 import javafx.beans.property.SimpleObjectProperty;
  41 import javafx.beans.property.SimpleStringProperty;
  42 import test.com.sun.javafx.binding.ErrorLoggingUtiltity;
  43 import org.junit.BeforeClass;
  44 import org.junit.Test;
  45 import org.junit.runner.RunWith;
  46 import org.junit.runners.Parameterized;
  47 
  48 import static org.junit.Assert.*;
  49 
  50 /**
  51  */
  52 @RunWith(Parameterized.class)
  53 public class BindingsCreateBindingTest<T> {
  54 
  55     private static final float EPSILON_FLOAT = 1e-5f;
  56     private static final double EPSILON_DOUBLE = 1e-10;
  57 
  58     private static interface Functions<S> {
  59         public Binding<S> create(Callable<S> func, Observable... dependencies);
  60         public void check(S value0, S value1);
  61     }
  62 
  63     private final Property<T> p0;
  64     private final Property<T> p1;
  65     private final Functions<T> f;
  66     private final T value0;
  67     private final T value1;
  68     private final T defaultValue;
  69 
  70     @BeforeClass
  71     public static void setUpClass() {
  72         ErrorLoggingUtiltity.reset();
  73     }
  74 
  75     public BindingsCreateBindingTest(Property<T> p0, Property<T> p1, Functions<T> f, T value0, T value1, T defaultValue) {
  76         this.p0 = p0;
  77         this.p1 = p1;
  78         this.f = f;
  79         this.value0 = value0;
  80         this.value1 = value1;
  81         this.defaultValue = defaultValue;
  82     }
  83 
  84     @Test
  85     public void testNoDependencies() {
  86         // func returns value0, no dependencies specified
  87         final Callable<T> func0 = () -> value0;
  88         final Binding<T> binding0 = f.create(func0);
  89 
  90         f.check(value0, binding0.getValue());
  91         assertTrue(binding0.getDependencies().isEmpty());
  92         binding0.dispose();
  93 
  94         // func returns value1, dependencies set to null
  95         final Callable<T> func1 = () -> value1;
  96         final Binding<T> binding1 = f.create(func1, (Observable[])null);
  97 
  98         f.check(value1, binding1.getValue());
  99         assertTrue(binding1.getDependencies().isEmpty());
 100         binding1.dispose();
 101 
 102         // func throws exception, dependencies set to empty array
 103         final Callable<T> func2 = () -> {
 104             throw new Exception();
 105         };
 106         final Binding<T> binding2 = f.create(func2, new Observable [0]);
 107 
 108         f.check(defaultValue, binding2.getValue());
 109         ErrorLoggingUtiltity.checkWarning(Exception.class);
 110         assertTrue(binding2.getDependencies().isEmpty());
 111         binding2.dispose();
 112     }
 113 
 114     @Test
 115     public void testOneDependency() {
 116         final Callable<T> func = () -> p0.getValue();
 117         final Binding<T> binding = f.create(func, p0);
 118 
 119         f.check(p0.getValue(), binding.getValue());
 120         assertEquals(binding.getDependencies(), Arrays.asList(p0));
 121         p0.setValue(value1);
 122         f.check(p0.getValue(), binding.getValue());
 123         binding.dispose();
 124     }
 125 
 126     @Test
 127     public void testCreateBoolean_TwoDependencies() {
 128         final Callable<T> func = () -> p0.getValue();
 129         final Binding<T> binding = f.create(func, p0, p1);
 130 
 131         f.check(p0.getValue(), binding.getValue());
 132         assertTrue(binding.getDependencies().equals(Arrays.asList(p0, p1)) || binding.getDependencies().equals((Arrays.asList(p1, p0))));
 133         p0.setValue(value1);
 134         f.check(p0.getValue(), binding.getValue());
 135         binding.dispose();
 136     }
 137 
 138     @Parameterized.Parameters
 139     public static Collection<Object[]> parameters() {
 140         return Arrays.asList(new Object[][] {
 141                 {
 142                     new SimpleBooleanProperty(), new SimpleBooleanProperty(),
 143                     new Functions<Boolean>() {
 144                         @Override
 145                         public Binding<Boolean> create(Callable<Boolean> func, Observable... dependencies) {
 146                             return Bindings.createBooleanBinding(func, dependencies);
 147                         }
 148 
 149                         @Override
 150                         public void check(Boolean value0, Boolean value1) {
 151                             assertEquals(value0, value1);
 152                         }
 153                     },
 154                     true, false, false
 155                 },
 156                 {
 157                     new SimpleDoubleProperty(), new SimpleDoubleProperty(),
 158                     new Functions<Number>() {
 159                         @Override
 160                         public Binding<Number> create(Callable func, Observable... dependencies) {
 161                             return Bindings.createDoubleBinding(func, dependencies);
 162                         }
 163 
 164                         @Override
 165                         public void check(Number value0, Number value1) {
 166                             assertEquals(value0.doubleValue(), value1.doubleValue(), EPSILON_DOUBLE);
 167                         }
 168                     },
 169                     Math.PI, -Math.E, 0.0
 170                 },
 171                 {
 172                     new SimpleFloatProperty(), new SimpleFloatProperty(),
 173                     new Functions<Number>() {
 174                         @Override
 175                         public Binding<Number> create(Callable func, Observable... dependencies) {
 176                             return Bindings.createFloatBinding(func, dependencies);
 177                         }
 178 
 179                         @Override
 180                         public void check(Number value0, Number value1) {
 181                             assertEquals(value0.floatValue(), value1.floatValue(), EPSILON_FLOAT);
 182                         }
 183                     },
 184                     (float)Math.PI, (float)-Math.E, 0.0f
 185                 },
 186                 {
 187                     new SimpleIntegerProperty(), new SimpleIntegerProperty(),
 188                     new Functions<Number>() {
 189                         @Override
 190                         public Binding<Number> create(Callable func, Observable... dependencies) {
 191                             return Bindings.createIntegerBinding(func, dependencies);
 192                         }
 193 
 194                         @Override
 195                         public void check(Number value0, Number value1) {
 196                             assertEquals(value0.intValue(), value1.intValue());
 197                         }
 198                     },
 199                     Integer.MAX_VALUE, Integer.MIN_VALUE, 0
 200                 },
 201                 {
 202                     new SimpleLongProperty(), new SimpleLongProperty(),
 203                     new Functions<Number>() {
 204                         @Override
 205                         public Binding<Number> create(Callable func, Observable... dependencies) {
 206                             return Bindings.createLongBinding(func, dependencies);
 207                         }
 208 
 209                         @Override
 210                         public void check(Number value0, Number value1) {
 211                             assertEquals(value0.longValue(), value1.longValue());
 212                         }
 213                     },
 214                     Long.MAX_VALUE, Long.MIN_VALUE, 0L
 215                 },
 216                 {
 217                     new SimpleObjectProperty(), new SimpleObjectProperty(),
 218                     new Functions<Object>() {
 219                         @Override
 220                         public Binding<Object> create(Callable<Object> func, Observable... dependencies) {
 221                             return Bindings.createObjectBinding(func, dependencies);
 222                         }
 223 
 224                         @Override
 225                         public void check(Object value0, Object value1) {
 226                             assertEquals(value0, value1);
 227                         }
 228                     },
 229                     new Object(), new Object(), null
 230                 },
 231                 {
 232                     new SimpleStringProperty(), new SimpleStringProperty(),
 233                     new Functions<String>() {
 234                         @Override
 235                         public Binding<String> create(Callable<String> func, Observable... dependencies) {
 236                             return Bindings.createStringBinding(func, dependencies);
 237                         }
 238 
 239                         @Override
 240                         public void check(String value0, String value1) {
 241                             assertEquals(value0, value1);
 242                         }
 243                     },
 244                     "Hello World", "Goodbye World", ""
 245                 },
 246         });
 247     }
 248 }