001    /*
002     * Copyright 2002-2004 the original author or authors.
003     * 
004     * Licensed under the Apache License, Version 2.0 (the "License"); you may not
005     * use this file except in compliance with the License. You may obtain a copy of
006     * the License at
007     * 
008     * http://www.apache.org/licenses/LICENSE-2.0
009     * 
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
012     * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
013     * License for the specific language governing permissions and limitations under
014     * the License.
015     */
016    package org.springframework.binding.value.swing;
017    
018    import java.text.ParseException;
019    
020    import javax.swing.JFormattedTextField;
021    import javax.swing.JFormattedTextField.AbstractFormatter;
022    import javax.swing.JFormattedTextField.AbstractFormatterFactory;
023    
024    import org.springframework.binding.support.TestPropertyChangeListener;
025    import org.springframework.binding.value.ValueModel;
026    import org.springframework.binding.value.support.ValueHolder;
027    import org.springframework.richclient.test.SpringRichTestCase;
028    
029    /**
030     * Test cases for {@link FormattedTextFieldAdapter}
031     * 
032     * @author Oliver Hutchison
033     */
034    public class FormattedTextFieldAdapterTests extends SpringRichTestCase {
035    
036        private ValueModel valueModel;
037    
038        private TestPropertyChangeListener valueListener;
039    
040        private TestableJTextComponent comp;
041    
042        public void doSetUp() throws Exception {
043            valueModel = new ValueHolder("");
044            valueListener = new TestPropertyChangeListener(ValueModel.VALUE_PROPERTY);
045            valueModel.addValueChangeListener(valueListener);
046            comp = new TestableJTextComponent();
047            comp.setFormatterFactory(new OnlyAlowLowerCaseFormatterFactory());
048            new FormattedTextFieldAdapter(comp, valueModel, ValueCommitPolicy.AS_YOU_TYPE);
049        }
050    
051        public void testComponentChangeUpdatesValueModel() {
052            comp.setValue("newvalue"); 
053            assertEquals("newvalue", valueModel.getValue());
054            assertEquals(1, valueListener.eventCount());
055    
056            comp.setText("newervalue");
057            assertEquals("newervalue", valueModel.getValue());
058            assertEquals(3, valueListener.eventCount());
059        }
060    
061        public void testValueModelChangeUpdatesComponent() {
062            valueModel.setValue("newvalue");
063            assertEquals("newvalue", comp.getValue());
064            assertEquals(1, valueListener.eventCount());
065        }
066    
067        public void testTypingUpdatesValueModel() {
068            comp.typeText("a");
069            assertEquals("a", valueModel.getValue());
070            assertEquals(1, valueListener.eventCount());
071    
072            valueListener.reset();
073            comp.typeText("bc");
074            assertEquals("abc", valueModel.getValue());
075            assertEquals(2, valueListener.eventCount());
076    
077            valueListener.reset();
078            comp.setCaretPosition(1);
079            comp.typeText("d");
080            assertEquals("adbc", valueModel.getValue());
081            assertEquals(1, valueListener.eventCount());
082            
083            // type an invalid char
084            valueListener.reset();
085            comp.setCaretPosition(1);
086            comp.typeText("E");
087            assertEquals("adbc", valueModel.getValue());
088            assertEquals(0, valueListener.eventCount());
089    
090            valueListener.reset();
091            comp.setCaretPosition(2);
092            comp.typeBackSpace();
093            comp.typeText("f");
094            assertEquals("afdbc", valueModel.getValue());
095            assertEquals(1, valueListener.eventCount());
096        }
097        
098        private static final class OnlyAlowLowerCaseFormatterFactory extends AbstractFormatterFactory {
099            public AbstractFormatter getFormatter(JFormattedTextField tf) {
100                return new AbstractFormatter() {
101    
102                    public Object stringToValue(String text) throws ParseException {
103                        if (text != null && !text.equals(text.toLowerCase())) {
104                            throw new ParseException(text, 0);
105                        }
106                        return text;
107                    }
108    
109                    public String valueToString(Object value) throws ParseException {
110                        return (String) value;
111                    }
112                };
113            }
114        }
115    }