? null
              : ("[" + String.valueOf(cp) + "]").toCharArray();
        }
      };

  public void testNopEscaper() {
    UnicodeEscaper e = NOP_ESCAPER;
    assertThat(escapeAsString(e, TEST_STRING)).isEqualTo(TEST_STRING);
  }

  public void testSimpleEscaper() {
    UnicodeEscaper e = SIMPLE_ESCAPER;
    String expected =
        "[0]abyz[128][256][2048][4096]ABYZ[65535]"

@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class CollectionAddTester<E> extends AbstractCollectionTester<E> {
  @CollectionFeature.Require(SUPPORTS_ADD)
  public void testAdd_supportedNotPresent() {
    assertTrue("add(notPresent) should return true", collection.add(e3()));
    expectAdded(e3());
  }

  @CollectionFeature.Require(absent = SUPPORTS_ADD)
  public void testAdd_unsupportedNotPresent() {

              ? null
              : ("[" + String.valueOf(cp) + "]").toCharArray();
        }
      };

  public void testNopEscaper() {
    UnicodeEscaper e = NOP_ESCAPER;
    assertThat(escapeAsString(e, TEST_STRING)).isEqualTo(TEST_STRING);
  }

  public void testSimpleEscaper() {
    UnicodeEscaper e = SIMPLE_ESCAPER;
    String expected =
        "[0]abyz[128][256][2048][4096]ABYZ[65535]"

 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *

@SuppressWarnings("JUnit4ClassUsedInJUnit3")
@NullMarked
public class ConcurrentMapPutIfAbsentTester<K, V> extends AbstractMapTester<K, V> {
  @Override
  protected ConcurrentMap<K, V> getMap() {
    return (ConcurrentMap<K, V>) super.getMap();
  }

  @MapFeature.Require(SUPPORTS_PUT)
  public void testPutIfAbsent_supportedAbsent() {

  }

  public void testToString() {
    assertEquals("foo", entry("foo", 1).toString());
    assertEquals("bar x 2", entry("bar", 2).toString());
  }

  public void testToStringNull() {
    assertEquals("null", entry(NE, 1).toString());
    assertEquals("null x 2", entry(NE, 2).toString());
  }

  public void testEquals() {
    assertEquals(control("foo", 1), entry("foo", 1));

/**
 * Test {@code TreeMultimap.asMap().subMap()} with {@link MapInterfaceTest}.
 *
 * @author Jared Levy
 */
@GwtCompatible
@NullMarked
public class SubMapMultimapAsMapImplementsMapTest extends AbstractMultimapAsMapImplementsMapTest {

  public SubMapMultimapAsMapImplementsMapTest() {
    super(true, true, true);
  }

  private TreeMultimap<String, Integer> createMultimap() {

  public @Nullable E poll(long timeout, TimeUnit unit) throws InterruptedException {
    return delegate().poll(timeout, unit);
  }

  @Override
  public void put(E e) throws InterruptedException {
    delegate().put(e);
  }

  @Override
  public int remainingCapacity() {
    return delegate().remainingCapacity();
  }

  @CanIgnoreReturnValue // TODO(kak): consider removing this
  @Override

@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class BiMapRemoveTester<K, V> extends AbstractBiMapTester<K, V> {
  @MapFeature.Require(SUPPORTS_REMOVE)
  @CollectionSize.Require(absent = ZERO)
  public void testRemoveKeyRemovesFromInverse() {
    getMap().remove(k0());
    expectMissing(e0());
  }

  @MapFeature.Require(SUPPORTS_REMOVE)
  @CollectionSize.Require(absent = ZERO)
  public void testRemoveKeyFromKeySetRemovesFromInverse() {

@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class MapGetTester<K, V> extends AbstractMapTester<K, V> {
  @CollectionSize.Require(absent = ZERO)
  public void testGet_yes() {
    assertEquals("get(present) should return the associated value", v0(), get(k0()));
  }

  public void testGet_no() {
    assertNull("get(notPresent) should return null", get(k3()));
  }