package com.vaadin.ui; 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 java.util.ArrayList; import java.util.Arrays; import java.util.Collection; import java.util.List; import java.util.Optional; import java.util.concurrent.atomic.AtomicReference; import org.jsoup.nodes.Element; import org.junit.Before; import org.junit.Test; import org.mockito.Mockito; import com.vaadin.data.HasDataProvider; import com.vaadin.data.HasValue.ValueChangeEvent; import com.vaadin.data.provider.DataProvider; import com.vaadin.data.provider.bov.Person; import com.vaadin.event.selection.SingleSelectionEvent; import com.vaadin.event.selection.SingleSelectionListener; import com.vaadin.shared.Registration; import com.vaadin.shared.data.DataCommunicatorClientRpc; import com.vaadin.ui.declarative.DesignContext; /** * Test for {@link AbstractSingleSelect} and {@link AbstractSingleSelection} * * @author Vaadin Ltd */ public class AbstractSingleSelectTest { private List selectionChanges; private List oldSelections; private static class PersonListing extends AbstractSingleSelect implements HasDataProvider { @Override protected Element writeItem(Element design, Person item, DesignContext context) { return null; } @Override protected void readItems(Element design, DesignContext context) { } @Override public DataProvider getDataProvider() { return internalGetDataProvider(); } @Override public void setDataProvider(DataProvider dataProvider) { internalSetDataProvider(dataProvider); } } @Before public void initListing() { listing = new PersonListing(); listing.setItems(PERSON_A, PERSON_B, PERSON_C); selectionChanges = new ArrayList<>(); oldSelections = new ArrayList<>(); listing.addSelectionListener( event -> selectionChanges.add(event.getValue())); listing.addSelectionListener( event -> oldSelections.add(event.getOldValue())); } public static final Person PERSON_C = new Person("c", 3); public static final Person PERSON_B = new Person("b", 2); public static final Person PERSON_A = new Person("a", 1); public static final String RPC_INTERFACE = DataCommunicatorClientRpc.class .getName(); private PersonListing listing; @Test public void select() { listing.setValue(PERSON_B); assertTrue(listing.getSelectedItem().isPresent()); assertEquals(PERSON_B, listing.getSelectedItem().orElse(null)); assertFalse(listing.isSelected(PERSON_A)); assertTrue(listing.isSelected(PERSON_B)); assertFalse(listing.isSelected(PERSON_C)); assertEquals(Optional.of(PERSON_B), listing.getSelectedItem()); assertEquals(Arrays.asList(PERSON_B), selectionChanges); verifyValueChanges(); } @Test public void selectDeselect() { listing.setValue(PERSON_B); listing.setValue(null); assertFalse(listing.getSelectedItem().isPresent()); assertFalse(listing.isSelected(PERSON_A)); assertFalse(listing.isSelected(PERSON_B)); assertFalse(listing.isSelected(PERSON_C)); assertFalse(listing.getSelectedItem().isPresent()); assertEquals(Arrays.asList(PERSON_B, null), selectionChanges); verifyValueChanges(); } @Test public void reselect() { listing.setValue(PERSON_B); listing.setValue(PERSON_C); assertEquals(PERSON_C, listing.getSelectedItem().orElse(null)); assertFalse(listing.isSelected(PERSON_A)); assertFalse(listing.isSelected(PERSON_B)); assertTrue(listing.isSelected(PERSON_C)); assertEquals(Optional.of(PERSON_C), listing.getSelectedItem()); assertEquals(Arrays.asList(PERSON_B, PERSON_C), selectionChanges); verifyValueChanges(); } @Test public void selectTwice() { listing.setValue(PERSON_C); listing.setValue(PERSON_C); assertEquals(PERSON_C, listing.getSelectedItem().orElse(null)); assertFalse(listing.isSelected(PERSON_A)); assertFalse(listing.isSelected(PERSON_B)); assertTrue(listing.isSelected(PERSON_C)); assertEquals(Optional.of(PERSON_C), listing.getSelectedItem()); assertEquals(Arrays.asList(PERSON_C), selectionChanges); verifyValueChanges(); } @Test public void deselectTwice() { listing.setValue(PERSON_C); listing.setValue(null); listing.setValue(null); assertFalse(listing.getSelectedItem().isPresent()); assertFalse(listing.isSelected(PERSON_A)); assertFalse(listing.isSelected(PERSON_B)); assertFalse(listing.isSelected(PERSON_C)); assertFalse(listing.getSelectedItem().isPresent()); assertEquals(Arrays.asList(PERSON_C, null), selectionChanges); verifyValueChanges(); } @Test public void getValue() { listing.setSelectedItem(PERSON_B); assertEquals(PERSON_B, listing.getValue()); listing.setValue(null); assertNull(listing.getValue()); verifyValueChanges(); } @Test @SuppressWarnings({ "rawtypes" }) public void getValue_isDelegatedTo_getSelectedItem() { AbstractSingleSelect select = Mockito.mock(AbstractSingleSelect.class); Optional selected = Optional.of(new Object()); Mockito.when(select.getSelectedItem()).thenReturn(selected); Mockito.doCallRealMethod().when(select).getValue(); assertSame(selected.get(), select.getValue()); selected = Optional.empty(); Mockito.when(select.getSelectedItem()).thenReturn(selected); assertNull(select.getValue()); } @Test public void setValue() { listing.setValue(PERSON_C); assertEquals(PERSON_C, listing.getSelectedItem().get()); listing.setValue(null); assertFalse(listing.getSelectedItem().isPresent()); verifyValueChanges(); } @Test @SuppressWarnings({ "rawtypes", "unchecked" }) public void setValue_isDelegatedTo_setSelectedItem() { AbstractSingleSelect select = Mockito.mock(AbstractSingleSelect.class); Mockito.doCallRealMethod().when(select).setValue(Mockito.any()); Object value = new Object(); select.setValue(value); Mockito.verify(select).setSelectedItem(value); select.setValue(null); Mockito.verify(select).setSelectedItem(null); } @SuppressWarnings("serial") @Test public void addValueChangeListener() { AtomicReference> selectionListener = new AtomicReference<>(); Registration registration = Mockito.mock(Registration.class); String value = "foo"; AbstractSingleSelect select = new AbstractSingleSelect() { @Override public Registration addSelectionListener( SingleSelectionListener listener) { selectionListener.set(listener); return registration; } @Override public String getValue() { return value; } @Override protected Element writeItem(Element design, String item, DesignContext context) { return null; } @Override protected void readItems(Element design, DesignContext context) { } @Override public void setItems(Collection items) { throw new UnsupportedOperationException( "Not needed in this test"); } @Override public DataProvider getDataProvider() { return null; } }; AtomicReference> event = new AtomicReference<>(); Registration actualRegistration = select.addValueChangeListener(evt -> { assertNull(event.get()); event.set(evt); }); assertSame(registration, actualRegistration); selectionListener.get().selectionChange( new SingleSelectionEvent<>(select, value, true)); assertEquals(select, event.get().getComponent()); assertEquals(value, event.get().getOldValue()); assertEquals(value, event.get().getValue()); assertTrue(event.get().isUserOriginated()); } private void verifyValueChanges() { if (!oldSelections.isEmpty()) { assertEquals(null, oldSelections.get(0)); assertEquals(selectionChanges.size(), oldSelections.size()); for (int i = 0; i < oldSelections.size() - 1; i++) { assertEquals(selectionChanges.get(i), oldSelections.get(i + 1)); } } } } href='#n167'>167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257