public void testSelectionForDirectSelectionChanges() {
SelectionInList<String> sil = new SelectionInList<String>(listModel);
PropertyChangeReport selectionEmptyReport = new PropertyChangeReport();
sil.addPropertyChangeListener(
SelectionInList.PROPERTYNAME_SELECTION_EMPTY, selectionEmptyReport);
sil.setSelection((String) listModel.getElementAt(0));
assertFalse("The selection index is 0 and not empty.", sil.isSelectionEmpty());
assertEquals(
"selectionEmpty changed from true to false.", 1, selectionEmptyReport.eventCount());
assertTrue(
"1) selectionEmpty change event oldValue == true.",
selectionEmptyReport.lastOldBooleanValue());
assertFalse(
"1) selectionEmpty change event newValue == false.",
selectionEmptyReport.lastNewBooleanValue());
sil.setSelection((String) listModel.getElementAt(1));
assertFalse("The selection index is 1 and not empty.", sil.isSelectionEmpty());
assertEquals("No selectionEmpty change event fired", 1, selectionEmptyReport.eventCount());
sil.setSelection(null);
assertTrue("The selection index is empty.", sil.isSelectionEmpty());
assertEquals(
"selectionEmpty changed from false to true.", 2, selectionEmptyReport.eventCount());
assertFalse(
"2) selectionEmpty change event oldValue == false.",
selectionEmptyReport.lastOldBooleanValue());
assertTrue(
"2) selectionEmpty change event newValue == true.",
selectionEmptyReport.lastNewBooleanValue());
}
public void testSelectionForDirectSelectionIndexChanges() {
SelectionInList<String> sil = new SelectionInList<String>(listModel);
// Create change reports.
PropertyChangeReport valueReport = new PropertyChangeReport();
PropertyChangeReport selectionReport = new PropertyChangeReport();
PropertyChangeReport selectionEmptyReport = new PropertyChangeReport();
PropertyChangeReport selectionIndexReport = new PropertyChangeReport();
// Register change reports for value, selection, selection index,
// and selectionEmpty
sil.addValueChangeListener(valueReport);
sil.addPropertyChangeListener(SelectionInList.PROPERTYNAME_SELECTION, selectionReport);
sil.addPropertyChangeListener(
SelectionInList.PROPERTYNAME_SELECTION_EMPTY, selectionEmptyReport);
sil.addPropertyChangeListener(
SelectionInList.PROPERTYNAME_SELECTION_INDEX, selectionIndexReport);
assertEquals("The initial value is null.", null, sil.getValue());
assertEquals("The initial selection is null.", null, sil.getSelection());
assertTrue("The initial selection is empty.", sil.isSelectionEmpty());
assertEquals("The initial selection index is -1.", -1, sil.getSelectionIndex());
sil.setSelectionIndex(0);
assertEquals(
"The new value is the first list element.", listModel.getElementAt(0), sil.getValue());
assertEquals(
"The new selection is the first list element.",
listModel.getElementAt(0),
sil.getSelection());
assertFalse("The selection is not empty.", sil.isSelectionEmpty());
assertEquals("The new selection index is 0.", 0, sil.getSelectionIndex());
assertEquals(
"selectionEmpty changed from true to false.", 1, selectionEmptyReport.eventCount());
assertTrue(
"1) selectionEmpty change event oldValue == true.",
selectionEmptyReport.lastOldBooleanValue());
assertFalse(
"1) selectionEmpty change event newValue == false.",
selectionEmptyReport.lastNewBooleanValue());
sil.setSelectionIndex(1);
assertFalse("The selection index is 1 and not empty.", sil.isSelectionEmpty());
assertEquals("No selectionEmpty change event fired", 1, selectionEmptyReport.eventCount());
sil.clearSelection();
assertTrue("The selection index is empty.", sil.isSelectionEmpty());
assertEquals(
"selectionEmpty changed from false to true.", 2, selectionEmptyReport.eventCount());
assertFalse(
"2) selectionEmpty change event oldValue == false.",
selectionEmptyReport.lastOldBooleanValue());
assertTrue(
"2) selectionEmpty change event newValue == true.",
selectionEmptyReport.lastNewBooleanValue());
}
