### Question:
SelectionTableRowData { public Set<PageRange> toPageRangeSet() throws ConversionException { return ConversionUtils.toPageRangeSet(pageSelection.get()); } SelectionTableRowData(PdfDocumentDescriptor descriptor); SelectionTableRowData duplicate(); PdfDocumentDescriptor descriptor(); void invalidate(); Set<PageRange> toPageRangeSet(); final SimpleStringProperty pageSelection; final SimpleStringProperty pace; final SimpleBooleanProperty reverse; }### Answer:
@Test public void empty() throws ConversionException { PdfDocumentDescriptor descriptor = mock(PdfDocumentDescriptor.class); SelectionTableRowData victim = new SelectionTableRowData(descriptor); assertTrue(victim.toPageRangeSet().isEmpty()); }