/*******************************************************************************
* Copyright (c) 2009, 2015 EclipseSource and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* EclipseSource - initial API and implementation
******************************************************************************/
package org.eclipse.swt.custom;
import static org.eclipse.rap.rwt.testfixture.internal.SerializationTestUtil.serializeAndDeserialize;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import static org.mockito.Mockito.mock;
import java.util.ArrayList;
import org.eclipse.rap.rwt.internal.lifecycle.WidgetLCA;
import org.eclipse.rap.rwt.testfixture.TestContext;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.events.TypedEvent;
import org.eclipse.swt.events.VerifyEvent;
import org.eclipse.swt.events.VerifyListener;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.internal.custom.ccombokit.CComboLCA;
import org.eclipse.swt.internal.widgets.ITextAdapter;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
/*
* Note:
* As long as CCombo uses a ListModel to maintain its items and selection,
* most of the add/remove/getItem.../selection test cases can be omitted.
* They are covered in List_Test
*/
public class CCombo_Test {
@Rule
public TestContext context = new TestContext();
private boolean listenerCalled;
private Display display;
private Shell shell;
private CCombo combo;
@Before
public void setUp() {
display = new Display();
shell = new Shell( display, SWT.NONE );
combo = new CCombo( shell, SWT.NONE );
}
@Test
public void testDoesNotSupportScrollBars() {
Combo combo = new Combo( shell, SWT.V_SCROLL | SWT.H_SCROLL );
assertNull( combo.getHorizontalBar() );
assertNull( combo.getVerticalBar() );
}
@Test
public void testDeselect() {
combo.add( "item1" );
combo.add( "item2" );
combo.add( "item3" );
// deselect the currently selected index/item
combo.select( 1 );
combo.deselect( 1 );
assertEquals( -1, combo.getSelectionIndex() );
// deselect works only if the argument matches the currently selected index
// (as far as I understand SWT doc/implementation...)
combo.select( 1 );
combo.deselect( 0 );
assertEquals( 1, combo.getSelectionIndex() );
}
@Test
public void testGetText() {
combo = new CCombo( shell, SWT.READ_ONLY );
combo.add( "item1" );
combo.add( "item2" );
combo.add( "item3" );
// test get text without setting an explicit selection
assertEquals( combo.getText(), "" );
// test after selection
combo.select( 2 );
assertEquals( combo.getText(), "item3" );
// test after deselection
combo.deselectAll();
assertEquals( combo.getText(), "" );
// testing editable CCombo
combo = new CCombo( shell, SWT.NONE );
String[] cases = { "", "fred", "fredfred" };
for( int i = 0; i < cases.length; i++ ) {
combo.setText( cases[ i ] );
assertTrue( ":a:" + String.valueOf( i ),
cases[ i ].equals( combo.getText() ) );
}
}
@Test
public void testSetText_resetSelection() {
combo.setText( "some text" );
combo.setSelection( new Point( 2, 4 ) );
combo.setText( "other text" );
assertEquals( new Point( 0, 0 ), combo.getSelection() );
}
@Test
public void testAdapterSetText_doesNotResetSelection() {
combo.setText( "some text" );
combo.setSelection( new Point( 2, 4 ) );
combo.getAdapter( ITextAdapter.class ).setText( "other text" );
assertEquals( new Point( 2, 4 ), combo.getSelection() );
}
@Test
public void testAdapterSetText_adjustsSelection() {
combo.setText( "some text" );
combo.setSelection( new Point( 7, 9 ) );
combo.getAdapter( ITextAdapter.class ).setText( "text" );
assertEquals( new Point( 4, 4 ), combo.getSelection() );
}
@Test
public void testTextLimit() {
combo.setTextLimit( -1 );
assertEquals( Combo.LIMIT, combo.getTextLimit() );
combo.setTextLimit( -20 );
assertEquals( Combo.LIMIT, combo.getTextLimit() );
combo.setTextLimit( -12345 );
assertEquals( Combo.LIMIT, combo.getTextLimit() );
combo.setTextLimit( 20 );
assertEquals( 20, combo.getTextLimit() );
try {
combo.setTextLimit( 0 );
fail( "Must not allow to set textLimit to zero" );
} catch( IllegalArgumentException e ) {
// as expected
}
combo.setText( "Sample_text" );
combo.setTextLimit( 6 );
assertEquals( "Sample_text", combo.getText() );
combo.setText( "Other_text" );
assertEquals( "Other_", combo.getText() );
}
@Test
public void testListVisible() {
combo.setListVisible( true );
assertTrue( combo.getListVisible() );
combo.setListVisible( false );
assertFalse( combo.getListVisible() );
}
@Test
public void testSelection() {
// test clearSelection
combo.setText( "abc" );
combo.setSelection( new Point( 1, 3 ) );
combo.clearSelection();
assertEquals( new Point( 0, 0 ), combo.getSelection() );
// test setSelection( a, b ), a < b
combo.clearSelection();
combo.setText( "test text" );
combo.setSelection( new Point( 3, 6 ) );
assertEquals( new Point( 3, 6 ), combo.getSelection() );
// test setSelection( a, b ), a > b
combo.clearSelection();
combo.setSelection( new Point( 5, 2 ) );
assertEquals( new Point( 2, 5 ), combo.getSelection() );
}
@Test
public void testIndexOf() {
combo = new CCombo( shell, SWT.READ_ONLY );
combo.add( "string0" );
try {
combo.indexOf( null );
fail( "No exception thrown for string == null" );
} catch( IllegalArgumentException e ) {
}
combo.removeAll();
int number = 5;
for( int i = 0; i < number; i++ ) {
combo.add( "fred" + i );
}
for( int i = 0; i < number; i++ ) {
assertEquals( i, combo.indexOf( "fred" + i ) );
}
for( int i = 0; i < number; i++ ) {
combo.add( "fred" + i );
}
combo.removeAll();
for( int i = 0; i < number; i++ ) {
assertEquals( -1, combo.indexOf( "fred" + i ) );
}
for( int i = 0; i < number; i++ ) {
combo.add( "fred" + i );
}
combo.remove( "fred3" );
for( int i = 0; i < 3; i++ ) {
assertEquals( i, combo.indexOf( "fred" + i ) );
}
assertEquals( -1, combo.indexOf( "fred3" ) );
for( int i = 4; i < number; i++ ) {
assertEquals( i - 1, combo.indexOf( "fred" + i ) );
}
combo.removeAll();
for( int i = 0; i < number; i++ ) {
combo.add( "fred" + i );
}
combo.remove( 2 );
for( int i = 0; i < 2; i++ ) {
assertEquals( i, combo.indexOf( "fred" + i ) );
}
assertEquals( -1, combo.indexOf( "fred2" ) );
for( int i = 3; i < number; i++ ) {
assertEquals( i - 1, combo.indexOf( "fred" + i ) );
}
}
@Test
public void testIndexOfI() {
combo = new CCombo( shell, SWT.READ_ONLY );
combo.add( "string0" );
try {
combo.indexOf( null );
fail( "No exception thrown for string == null" );
} catch( IllegalArgumentException e ) {
}
assertEquals( -1, combo.indexOf( "string0", -1 ) );
combo.removeAll();
int number = 5;
for( int i = 0; i < number; i++ ) {
combo.add( "fred" + i );
}
for( int i = 0; i < number; i++ ) {
assertTrue( ":a:" + i, combo.indexOf( "fred" + i, 0 ) == i );
}
for( int i = 0; i < number; i++ ) {
assertTrue( ":b:" + i, combo.indexOf( "fred" + i, i + 1 ) == -1 );
}
for( int i = 0; i < number; i++ ) {
combo.add( "fred" + i );
}
for( int i = 0; i < 3; i++ ) {
assertTrue( ":a:" + i, combo.indexOf( "fred" + i, 0 ) == i );
}
for( int i = 3; i < number; i++ ) {
assertTrue( ":b:" + i, combo.indexOf( "fred" + i, 3 ) == i );
}
for( int i = 0; i < number; i++ ) {
assertTrue( ":b:" + i, combo.indexOf( "fred" + i, i ) == i );
}
}
@Test
public void testSetText() {
try {
combo.setText( null );
fail( "No exception thrown for text == null" );
} catch( IllegalArgumentException e ) {
}
String[] cases = {
"", "fred", "fred0"
};
for( int i = 0; i < cases.length; i++ ) {
combo.setText( cases[ i ] );
assertTrue( ":a:" + i, combo.getText().equals( cases[ i ] ) );
}
for( int i = 0; i < 5; i++ ) {
combo.add( "fred" );
}
for( int i = 0; i < cases.length; i++ ) {
combo.setText( cases[ i ] );
assertTrue( ":b:" + i, combo.getText().equals( cases[ i ] ) );
}
for( int i = 0; i < 5; i++ ) {
combo.add( "fred" + i );
}
for( int i = 0; i < cases.length; i++ ) {
combo.setText( cases[ i ] );
assertTrue( ":c:" + i, combo.getText().equals( cases[ i ] ) );
}
}
@Test
public void testSetTextReadOnly() {
combo = new CCombo( shell, SWT.READ_ONLY );
combo.setText( "foo" );
assertEquals( "foo", combo.getText() );
}
@Test
public void testSetTextNotEditable() {
combo.setEditable( false );
combo.setText( "foo" );
assertEquals( "foo", combo.getText() );
}
@Test
public void testSetTextNotInItems() {
combo.setItems( new String[] { "a", "b", "c" } );
combo.select( 1 );
combo.setText( "foo" );
assertEquals( "foo", combo.getText() );
assertEquals( -1, combo.getSelectionIndex() );
}
@Test
public void testSetTextInItems() {
combo.setItems( new String[] { "a", "b", "c" } );
combo.setText( "b" );
assertEquals( "b", combo.getText() );
assertEquals( 1, combo.getSelectionIndex() );
}
@Test
public void testSelect() {
combo.add( "test" );
combo.select( 0 );
assertEquals( "test", combo.getText() );
combo.removeAll();
assertEquals( "", combo.getText() );
combo.add( "foo" );
combo.select( 0 );
assertEquals( "foo", combo.getText() );
}
@Test
public void testSelect2() {
combo.add( "test" );
combo.select( 0 );
assertEquals( "test", combo.getText() );
combo.remove( 0 );
combo.add( "foo" );
combo.select( 0 );
assertEquals( "foo", combo.getText() );
combo = new CCombo( shell, SWT.READ_ONLY );
combo.add( "test" );
combo.select( 0 );
assertEquals( "test", combo.getText() );
combo.remove( 0 );
assertEquals( "", combo.getText() );
combo.add( "foo" );
combo.select( 0 );
assertEquals( "foo", combo.getText() );
}
@Test
public void testSelect3() {
combo.add( "test" );
combo.add( "test1" );
combo.add( "test2" );
combo.setText( "foo" );
combo.removeAll();
assertEquals( "", combo.getText() );
combo = new CCombo( shell, SWT.READ_ONLY );
combo.add( "test" );
combo.add( "test1" );
combo.add( "test2" );
combo.setText( "foo" );
combo.removeAll();
assertEquals( "", combo.getText() );
combo = new CCombo( shell, SWT.NONE );
combo.add( "test" );
combo.add( "test1" );
combo.add( "test2" );
combo.select( 1 );
combo.remove( 1 );
assertEquals( "", combo.getText() );
combo = new CCombo( shell, SWT.NONE );
combo.add( "test" );
combo.add( "test1" );
combo.add( "test2" );
combo.select( 1 );
combo.remove( "test1" );
assertEquals( "", combo.getText() );
combo = new CCombo( shell, SWT.NONE );
combo.add( "test" );
combo.add( "test1" );
combo.add( "test2" );
combo.select( 1 );
combo.setText( "foo" );
combo.remove( 1 );
assertEquals( "foo", combo.getText() );
combo.removeAll();
combo = new CCombo( shell, SWT.NONE );
combo.add( "test" );
combo.add( "test1" );
combo.add( "test2" );
combo.add( "test3" );
combo.select( 1 );
combo.remove( 1, 3 );
assertEquals( "", combo.getText() );
}
@Test
public void testSelectWithInvalidIndex() {
combo.add( "test" );
combo.add( "test1" );
combo.add( "test2" );
combo.select( 1 );
assertEquals( 1, combo.getSelectionIndex() );
assertEquals( "test1", combo.getText() );
combo.select( -2 );
assertEquals( 1, combo.getSelectionIndex() );
assertEquals( "test1", combo.getText() );
combo.select( 10 );
assertEquals( 1, combo.getSelectionIndex() );
assertEquals( "test1", combo.getText() );
combo.select( -1 );
assertEquals( -1, combo.getSelectionIndex() );
assertEquals( "", combo.getText() );
}
@Test
public void testSetTextSelect() {
combo.add( "test" );
combo.add( "test2" );
combo.add( "test3" );
combo.setText( "foo" );
combo.select( 1 );
assertEquals( "test2", combo.getText() );
}
@Test
public void testRemoveAll() {
combo.add( "1" );
combo.add( "2" );
combo.removeAll();
assertEquals( 0, combo.getItems().length );
}
@Test
public void testDispose() {
combo.add( "test" );
combo.dispose();
assertTrue( combo.isDisposed() );
}
@Test
public void testAddModifyListener() {
combo.setItems( new String [] { "A-1", "B-1", "C-1" } );
ModifyListener listener = new ModifyListener() {
@Override
public void modifyText( ModifyEvent event ) {
listenerCalled = true;
}
};
try {
combo.addModifyListener( null );
fail( "removeModifyListener must not allow null listener" );
} catch( IllegalArgumentException e ) {
// expected
}
// test whether all content modifying API methods send a Modify event
combo.addModifyListener( listener );
listenerCalled = false;
combo.setText( "new text" );
assertTrue( listenerCalled );
listenerCalled = false;
// select and deselect item(s) test cases
combo.select( 1 );
assertTrue( listenerCalled );
listenerCalled = false;
combo.deselect( 1 );
assertTrue( listenerCalled );
listenerCalled = false;
combo.select( 0 );
assertTrue( listenerCalled );
listenerCalled = false;
combo.deselectAll();
assertTrue( listenerCalled );
// remove item(s) test cases
listenerCalled = false;
combo.select(0);
combo.remove(0);
assertTrue( listenerCalled );
listenerCalled = false;
combo.setItems (new String [] {"A-1", "B-1", "C-1"});
combo.select(0);
combo.remove("A-1");
assertTrue( listenerCalled );
listenerCalled = false;
combo.setItems (new String [] {"A-1", "B-1", "C-1"});
combo.select(0);
combo.remove(0,1);
assertTrue( listenerCalled );
listenerCalled = false;
combo.setItems (new String [] {"A-1", "B-1", "C-1"});
combo.select(0);
combo.removeAll();
assertTrue( listenerCalled );
//
listenerCalled = false;
combo.removeModifyListener( listener );
// cause to call the listener.
combo.setText( "line" );
assertFalse( listenerCalled );
try {
combo.removeModifyListener( null );
fail( "removeModifyListener must not allow null listener" );
} catch( IllegalArgumentException e ) {
// expected
}
}
@Test
public void testAddModifyListenerWithNullArgument() {
try {
combo.addModifyListener( null );
} catch( IllegalArgumentException expected ) {
}
}
@Test
public void testAddModifyListenerReadOnly() {
combo = new CCombo( shell, SWT.READ_ONLY );
combo.setItems (new String [] {"A-1", "B-1", "C-1"});
ModifyListener listener = new ModifyListener() {
@Override
public void modifyText( ModifyEvent event ) {
listenerCalled = true;
}
};
try {
combo.addModifyListener( null );
fail( "removeModifyListener must not allow null listener" );
} catch( IllegalArgumentException e ) {
// expected
}
// test whether all content modifying API methods send a Modify event
combo.addModifyListener( listener );
listenerCalled = false;
// select and deselect item(s) test cases
combo.select( 1 );
assertTrue( listenerCalled );
listenerCalled = false;
combo.deselect( 1 );
assertTrue( listenerCalled );
listenerCalled = false;
combo.select( 0 );
assertTrue( listenerCalled );
listenerCalled = false;
combo.deselectAll();
assertTrue( listenerCalled );
// remove item(s) test cases
listenerCalled = false;
combo.select(0);
combo.remove(0);
assertTrue( listenerCalled );
listenerCalled = false;
combo.setItems (new String [] {"A-1", "B-1", "C-1"});
combo.select(0);
combo.remove("A-1");
assertTrue( listenerCalled );
listenerCalled = false;
combo.setItems (new String [] {"A-1", "B-1", "C-1"});
combo.select(0);
combo.remove(0,1);
assertTrue( listenerCalled );
listenerCalled = false;
combo.setItems (new String [] {"A-1", "B-1", "C-1"});
combo.select(0);
combo.removeAll();
assertTrue( listenerCalled );
//
listenerCalled = false;
combo.removeModifyListener( listener );
// cause to call the listener.
combo.select( 2 );
assertFalse( listenerCalled );
try {
combo.removeModifyListener( null );
fail( "removeModifyListener must not allow null listener" );
} catch( IllegalArgumentException e ) {
// expected
}
}
@Test
public void testAddModifyListenerRegistersUntypedEvents() {
combo.addModifyListener( mock( ModifyListener.class ) );
assertTrue( combo.isListening( SWT.Modify ) );
}
@Test
public void testRemoveModifyListenerUnregistersUntypedEvents() {
ModifyListener listener = mock( ModifyListener.class );
combo.addModifyListener( listener );
combo.removeModifyListener( listener );
assertFalse( combo.isListening( SWT.Modify ) );
}
@Test
public void testAddVerifyListenerWithNullArgument() {
try {
combo.addVerifyListener( null );
} catch( IllegalArgumentException expected ) {
}
}
@Test
public void testAddVerifyListenerRegistersUntypedEvents() {
combo.addVerifyListener( mock( VerifyListener.class ) );
assertTrue( combo.isListening( SWT.Verify ) );
}
@Test
public void testRemoveVerifyListenerUnregistersUntypedEvents() {
VerifyListener listener = mock( VerifyListener.class );
combo.addVerifyListener( listener );
combo.removeVerifyListener( listener );
assertFalse( combo.isListening( SWT.Verify ) );
}
@Test
public void testVerifyEvent() {
VerifyListener verifyListener;
final java.util.List<TypedEvent> log = new ArrayList<TypedEvent>();
combo.addModifyListener( new ModifyListener() {
@Override
public void modifyText( ModifyEvent event ) {
log.add( event );
}
} );
combo.addVerifyListener( new VerifyListener() {
@Override
public void verifyText( VerifyEvent event ) {
log.add( event );
}
} );
// VerifyEvent is also sent when setting text to the already set value
log.clear();
combo.setText( "" );
assertEquals( 2, log.size() );
assertEquals( VerifyEvent.class, log.get( 0 ).getClass() );
assertEquals( ModifyEvent.class, log.get( 1 ).getClass() );
// Test verifyListener that prevents (doit=false) change
combo.setText( "" );
log.clear();
verifyListener = new VerifyListener() {
@Override
public void verifyText( VerifyEvent event ) {
event.doit = false;
}
};
combo.addVerifyListener( verifyListener );
combo.setText( "other" );
assertEquals( 1, log.size() );
assertEquals( VerifyEvent.class, log.get( 0 ).getClass() );
assertEquals( "", combo.getText() );
combo.removeVerifyListener( verifyListener );
// Test verifyListener that manipulates text
combo.setText( "" );
log.clear();
verifyListener = new VerifyListener() {
@Override
public void verifyText( VerifyEvent event ) {
event.text = "manipulated";
}
};
combo.addVerifyListener( verifyListener );
combo.setText( "other" );
assertEquals( 2, log.size() );
assertEquals( VerifyEvent.class, log.get( 0 ).getClass() );
assertEquals( ModifyEvent.class, log.get( 1 ).getClass() );
assertEquals( "manipulated", combo.getText() );
combo.removeVerifyListener( verifyListener );
// Ensure that VerifyEvent#start and #end denote the positions of the old
// text and #text denotes the text to be set
String oldText = "old";
combo.setText( oldText );
log.clear();
String newText = oldText + "changed";
combo.setText( newText );
assertEquals( 2, log.size() );
assertEquals( VerifyEvent.class, log.get( 0 ).getClass() );
VerifyEvent verifyEvent = ( VerifyEvent )log.get( 0 );
assertEquals( 0, verifyEvent.start );
assertEquals( oldText.length(), verifyEvent.end );
assertEquals( newText, verifyEvent.text );
assertEquals( ModifyEvent.class, log.get( 1 ).getClass() );
// Ensure that VerifyEvent#text denotes the text to be set
// and not the cut by textLimit one
combo.setTextLimit( 5 );
String sampleText = "sample_text";
log.clear();
combo.setText( sampleText );
assertEquals( 2, log.size() );
assertEquals( VerifyEvent.class, log.get( 0 ).getClass() );
verifyEvent = ( VerifyEvent )log.get( 0 );
assertEquals( sampleText, verifyEvent.text );
}
@Test
public void testVisibleItemCount() {
combo.add( "1" );
combo.add( "2" );
combo.add( "3" );
int visibleItemCount = combo.getVisibleItemCount();
combo.setVisibleItemCount( -2 );
assertEquals( visibleItemCount, combo.getVisibleItemCount() );
combo.setVisibleItemCount( 2 );
assertEquals( 2, combo.getVisibleItemCount() );
combo.setVisibleItemCount( 3 );
assertEquals( 3, combo.getVisibleItemCount() );
}
@Test
public void testComputeSize() {
Point expected = new Point( 64, 26 );
assertEquals( expected, combo.computeSize( SWT.DEFAULT, SWT.DEFAULT ) );
combo = new CCombo( shell, SWT.BORDER );
expected = new Point( 66, 28 );
assertEquals( expected, combo.computeSize( SWT.DEFAULT, SWT.DEFAULT ) );
combo = new CCombo( shell, SWT.FLAT );
expected = new Point( 64, 26 );
assertEquals( expected, combo.computeSize( SWT.DEFAULT, SWT.DEFAULT ) );
combo = new CCombo( shell, SWT.NONE );
combo.add( "1" );
combo.add( "22" );
combo.add( "333" );
expected = new Point( 80, 26 );
assertEquals( expected, combo.computeSize( SWT.DEFAULT, SWT.DEFAULT ) );
expected = new Point( 100, 100 );
assertEquals( expected, combo.computeSize( 100, 100 ) );
}
@Test
public void testSetTextAndSelection() {
combo.add( "test" );
combo.add( "test1" );
combo.add( "test2" );
combo.addVerifyListener( new VerifyListener() {
@Override
public void verifyText( VerifyEvent event ) {
event.text = event.text + "2";
}
} );
combo.setText( "test" );
assertEquals( 2, combo.getSelectionIndex() );
}
@Test
public void testGetTextHeight() {
// default theme font is 11px
assertEquals( 19, combo.getTextHeight() );
combo.setFont( new Font( display, "Helvetica", 12, SWT.NORMAL ) );
assertEquals( 16, combo.getTextHeight() );
combo.setFont( null );
assertEquals( 19, combo.getTextHeight() );
}
@Test
public void testSelectionIsSerializable() throws Exception {
combo.add( "0" );
combo.add( "1" );
combo.select( 1 );
CCombo deserializedCombo = serializeAndDeserialize( combo );
assertEquals( "1", deserializedCombo.getText() );
assertEquals( 1, deserializedCombo.getSelectionIndex() );
assertEquals( "0", deserializedCombo.getItem( 0 ) );
assertEquals( "1", deserializedCombo.getItem( 1 ) );
}
@Test
public void testSelectionIndex() {
combo.add( "test" );
combo.add( "test" );
combo.add( "test" );
assertEquals(-1, combo.getSelectionIndex() );
combo.select( 0 );
assertEquals( 0, combo.getSelectionIndex() );
combo.select( 1 );
assertEquals( 1, combo.getSelectionIndex() );
combo.select( 2 );
assertEquals( 2, combo.getSelectionIndex() );
}
@Test
public void testAddSelectionListener() {
combo.addSelectionListener( mock( SelectionListener.class ) );
assertTrue( combo.isListening( SWT.Selection ) );
assertTrue( combo.isListening( SWT.DefaultSelection ) );
}
@Test
public void testRemoveSelectionListener() {
SelectionListener listener = mock( SelectionListener.class );
combo.addSelectionListener( listener );
combo.removeSelectionListener( listener );
assertFalse( combo.isListening( SWT.Selection ) );
assertFalse( combo.isListening( SWT.DefaultSelection ) );
}
@Test( expected = IllegalArgumentException.class )
public void testAddSelectionListenerWithNullArgument() {
combo.addSelectionListener( null );
}
@Test
public void testGetAdapter_LCA() {
assertTrue( combo.getAdapter( WidgetLCA.class ) instanceof CComboLCA );
assertSame( combo.getAdapter( WidgetLCA.class ), combo.getAdapter( WidgetLCA.class ) );
}
}