import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertTrue;

@Deprecated
class DefaultUpdateCheckManagerTest extends AbstractArtifactComponentTestCase {

    @Inject
    private ArtifactFactory artifactFactory;

  @CollectionSize.Require(ONE)
  public void testForcePutKeyPresent() {
    getMap().forcePut(k0(), v1());
    expectContents(Helpers.mapEntry(k0(), v1()));
    assertFalse(getMap().containsValue(v0()));
    assertNull(getMap().inverse().get(v0()));
    assertEquals(1, getMap().size());
    assertTrue(getMap().containsKey(k0()));
  }

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(ONE)

    ValueReference<Object, Object> valueRef = map.newValueReference(entry, value, 1);
    entry.setValueReference(valueRef);

    assertNull(segment.get(key, hash));

    // count == 0
    table.set(index, entry);
    assertNull(segment.get(key, hash));
    assertFalse(segment.containsKey(key, hash));
    assertFalse(segment.containsValue(value));

    // count == 1

    ValueReference<Object, Object> valueRef = map.newValueReference(entry, value, 1);
    entry.setValueReference(valueRef);

    assertNull(segment.get(key, hash));

    // count == 0
    table.set(index, entry);
    assertNull(segment.get(key, hash));
    assertFalse(segment.containsKey(key, hash));
    assertFalse(segment.containsValue(value));

    // count == 1

@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public class FunctionsTest extends TestCase {

  public void testIdentity_same() {
    Function<@Nullable String, @Nullable String> identity = Functions.identity();
    assertNull(identity.apply(null));
    assertSame("foo", identity.apply("foo"));
  }

  public void testIdentity_notSame() {
    Function<Long, Long> identity = Functions.identity();

@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public class FunctionsTest extends TestCase {

  public void testIdentity_same() {
    Function<@Nullable String, @Nullable String> identity = Functions.identity();
    assertNull(identity.apply(null));
    assertSame("foo", identity.apply("foo"));
  }

  public void testIdentity_notSame() {
    Function<Long, Long> identity = Functions.identity();

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNull;

class DefaultProblemCollectorTest {

    @Test
    void testGetProblems() {
        DefaultProblemCollector collector = new DefaultProblemCollector(null);
        assertNotNull(collector.getProblems());

  public void testPutIfAbsent() {
    TestMap map = new TestMap();
    map.put("foo", 1);
    assertEquals(Integer.valueOf(1), map.putIfAbsent("foo", 2));
    assertEquals(Integer.valueOf(1), map.get("foo"));
    assertNull(map.putIfAbsent("bar", 3));
    assertEquals(Integer.valueOf(3), map.get("bar"));
  }

  public void testRemove() {
    TestMap map = new TestMap();
    map.put("foo", 1);
    assertFalse(map.remove("foo", 2));

    assertEquals((Character) 'b', table.get("bar", 1));
    assertEquals((Character) 'c', table.get("foo", 3));
    assertNull(table.get("foo", 2));
    assertNull(table.get("bar", 3));
    assertNull(table.get("cat", 1));
    assertNull(table.get("foo", null));
    assertNull(table.get(null, 1));
    assertNull(table.get(null, null));
  }

  public void testIsEmpty() {
    assertTrue(table.isEmpty());

    assertEquals((Character) 'b', table.get("bar", 1));
    assertEquals((Character) 'c', table.get("foo", 3));
    assertNull(table.get("foo", 2));
    assertNull(table.get("bar", 3));
    assertNull(table.get("cat", 1));
    assertNull(table.get("foo", null));
    assertNull(table.get(null, 1));
    assertNull(table.get(null, null));
  }

  public void testIsEmpty() {
    assertTrue(table.isEmpty());