public void testTransformEmptyMapEquality() {
    Map<String, String> map =
        Maps.transformValues(ImmutableMap.<String, Integer>of(), Functions.toStringFunction());
    assertMapsEqual(Maps.newHashMap(), map);
  }

  public void testTransformSingletonMapEquality() {
    Map<String, String> map =
        Maps.transformValues(ImmutableMap.of("a", 1), Functions.toStringFunction());

import java.util.Map;

/**
 * Tests for {@link Maps#transformValues(Map, Function)}.
 *
 * @author Isaac Shum
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public class MapsTransformValuesTest extends AbstractMapsTransformValuesTest {
  @Override
  protected Map<String, String> makeEmptyMap() {
    return Maps.transformValues(Maps.<String, String>newHashMap(), Functions.<String>identity());
  }

    return Tables.transformValues(table, TableCollectionTest.DIVIDE_BY_2);
  }

  @Override
  protected Map<String, Integer> makePopulatedMap() {
    Table<Character, String, Integer> table = HashBasedTable.create();
    table.put('a', "one", 2);
    table.put('a', "two", 4);
    table.put('a', "three", 6);
    table.put('b', "four", 8);
    return Tables.transformValues(table, TableCollectionTest.DIVIDE_BY_2).row('a');

import com.google.common.annotations.J2ktIncompatible;
import com.google.common.base.Function;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Test cases for {@link Tables#transformValues}.
 *
 * @author Jared Levy
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public class TablesTransformValuesTest extends AbstractTableTest<Character> {

  public void testTransformEmptyMapEquality() {
    Map<String, String> map =
        Maps.transformValues(ImmutableMap.<String, Integer>of(), Functions.toStringFunction());
    assertMapsEqual(Maps.newHashMap(), map);
  }

  public void testTransformSingletonMapEquality() {
    Map<String, String> map =
        Maps.transformValues(ImmutableMap.of("a", 1), Functions.toStringFunction());

    return Tables.transformValues(original, FIRST_CHARACTER);
  }

  @Override
  protected Map<String, Map<Integer, Character>> makePopulatedMap() {
    Table<Integer, String, String> table = HashBasedTable.create();
    table.put(1, "foo", "apple");
    table.put(1, "bar", "banana");
    table.put(3, "foo", "cat");
    return Tables.transformValues(table, FIRST_CHARACTER).columnMap();
  }

                      table.put(i, 'a', "x" + checkNotNull(elements[i]));
                    }
                    return Tables.transformValues(table, removeFirstCharacter).values();
                  }
                })
            .named("TransformValues.values")
            .withFeatures(COLLECTION_FEATURES_REMOVE)
            .withFeatures(CollectionFeature.SUPPORTS_ITERATOR_REMOVE)

  }

  public void testTransformEmptyMapEquality() {
    Map<String, String> map =
        Maps.transformValues(ImmutableMap.<String, Integer>of(), Functions.toStringFunction());
    assertMapsEqual(Maps.newHashMap(), map);
  }

  public void testTransformSingletonMapEquality() {
    Map<String, String> map =
        Maps.transformValues(ImmutableMap.of("a", 1), Functions.toStringFunction());

                      table.put(i, 'a', "x" + checkNotNull(elements[i]));
                    }
                    return Tables.transformValues(table, removeFirstCharacter).values();
                  }
                })
            .named("TransformValues.values")
            .withFeatures(COLLECTION_FEATURES_REMOVE)
            .withFeatures(CollectionFeature.SUPPORTS_ITERATOR_REMOVE)

                      map.put(entry.getKey(), encode(entry.getValue()));
                    }
                    return Maps.transformValues(map, DECODE_FUNCTION);
                  }
                })
            .named("Maps.transformValues[Map, Function]")
            .withFeatures(
                CollectionSize.ANY,
                CollectionFeature.KNOWN_ORDER,