DocumentAdapterTests.java

/*******************************************************************************
 * Copyright (c) 1998, 2015 Oracle and/or its affiliates. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
 * which accompanies this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *     Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.tools.workbench.test.uitools.app.swing;

import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.event.DocumentEvent.EventType;
import javax.swing.text.Document;

import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

import org.eclipse.persistence.tools.workbench.test.utility.TestTools;
import org.eclipse.persistence.tools.workbench.uitools.app.PropertyValueModel;
import org.eclipse.persistence.tools.workbench.uitools.app.SimplePropertyValueModel;
import org.eclipse.persistence.tools.workbench.uitools.app.ValueModel;
import org.eclipse.persistence.tools.workbench.uitools.app.swing.DocumentAdapter;
import org.eclipse.persistence.tools.workbench.utility.ClassTools;


public class DocumentAdapterTests extends TestCase {
    private PropertyValueModel stringHolder;
    Document documentAdapter;
    boolean eventFired;

    public static Test suite() {
        return new TestSuite(DocumentAdapterTests.class);
    }

    public DocumentAdapterTests(String name) {
        super(name);
    }

    protected void setUp() throws Exception {
        super.setUp();
        this.stringHolder = new SimplePropertyValueModel("0123456789");
        this.documentAdapter = new DocumentAdapter(this.stringHolder);
    }

    protected void tearDown() throws Exception {
        TestTools.clear(this);
        super.tearDown();
    }

    public void testRemove() throws Exception {
        this.eventFired = false;
        this.documentAdapter.addDocumentListener(new TestDocumentListener() {
            public void removeUpdate(DocumentEvent e) {
                DocumentAdapterTests.this.eventFired = true;
                assertEquals(EventType.REMOVE, e.getType());
                assertEquals(DocumentAdapterTests.this.documentAdapter, e.getDocument());
                // this will be the removal of "23456"
                assertEquals(2, e.getOffset());
                assertEquals(5, e.getLength());
            }
        });
        this.documentAdapter.remove(2, 5);
        assertTrue(this.eventFired);
        assertEquals("01789", this.stringHolder.getValue());
    }

    public void testInsert() throws Exception {
        this.eventFired = false;
        this.documentAdapter.addDocumentListener(new TestDocumentListener() {
            public void insertUpdate(DocumentEvent e) {
                DocumentAdapterTests.this.eventFired = true;
                assertEquals(EventType.INSERT, e.getType());
                assertEquals(DocumentAdapterTests.this.documentAdapter, e.getDocument());
                // this will be the insert of "xxxxxx"
                assertEquals(2, e.getOffset());
                assertEquals(5, e.getLength());
            }
        });
        this.documentAdapter.insertString(2, "xxxxx", null);
        assertTrue(this.eventFired);
        assertEquals("01xxxxx23456789", this.stringHolder.getValue());
    }

    public void testSetValue() throws Exception {
        this.eventFired = false;
        this.documentAdapter.addDocumentListener(new TestDocumentListener() {
            public void insertUpdate(DocumentEvent e) {
                DocumentAdapterTests.this.eventFired = true;
                assertEquals(EventType.INSERT, e.getType());
                assertEquals(DocumentAdapterTests.this.documentAdapter, e.getDocument());
                // this will be the insert of "foo"
                assertEquals(0, e.getOffset());
                assertEquals(3, e.getLength());
            }
            public void removeUpdate(DocumentEvent e) {
                assertEquals(EventType.REMOVE, e.getType());
                assertEquals(DocumentAdapterTests.this.documentAdapter, e.getDocument());
                // this will be the removal of "0123456789"
                assertEquals(0, e.getOffset());
                assertEquals(10, e.getLength());
            }
        });
        assertEquals("0123456789", this.documentAdapter.getText(0, this.documentAdapter.getLength()));
        this.stringHolder.setValue("foo");
        assertTrue(this.eventFired);
        assertEquals("foo", this.documentAdapter.getText(0, this.documentAdapter.getLength()));
    }

    public void testHasListeners() throws Exception {
        SimplePropertyValueModel localStringHolder = (SimplePropertyValueModel) this.stringHolder;
        assertFalse(localStringHolder.hasAnyPropertyChangeListeners(ValueModel.VALUE));
        this.verifyHasNoListeners(this.documentAdapter);

        DocumentListener listener = new TestDocumentListener();
        this.documentAdapter.addDocumentListener(listener);
        assertTrue(localStringHolder.hasAnyPropertyChangeListeners(ValueModel.VALUE));
        this.verifyHasListeners(this.documentAdapter);

        this.documentAdapter.removeDocumentListener(listener);
        assertFalse(localStringHolder.hasAnyPropertyChangeListeners(ValueModel.VALUE));
        this.verifyHasNoListeners(this.documentAdapter);
    }

    private void verifyHasNoListeners(Object document) throws Exception {
        Object delegate = ClassTools.getFieldValue(document, "delegate");
        Object[] listeners = (Object[]) ClassTools.invokeMethod(delegate, "getDocumentListeners");
        assertEquals(0, listeners.length);
    }

    private void verifyHasListeners(Object document) throws Exception {
        Object delegate = ClassTools.getFieldValue(document, "delegate");
        Object[] listeners = (Object[]) ClassTools.invokeMethod(delegate, "getDocumentListeners");
        assertFalse(listeners.length == 0);
    }


private class TestDocumentListener implements DocumentListener {
    public void changedUpdate(DocumentEvent e) {
        fail("unexpected event");
    }
    public void insertUpdate(DocumentEvent e) {
        fail("unexpected event");
    }
    public void removeUpdate(DocumentEvent e) {
        fail("unexpected event");
    }
}

}