immutableCell(null, null, null);
    assertThat(nullEntry.toString()).isEqualTo("(null,null)=null");
  }

  public void testEntryEquals() {
    Cell<String, Integer, Character> entry = immutableCell("foo", 1, 'a');

    new EqualsTester()
        .addEqualityGroup(entry, immutableCell("foo", 1, 'a'))
        .addEqualityGroup(immutableCell("bar", 1, 'a'))
        .addEqualityGroup(immutableCell("foo", 2, 'a'))

        immutableCell(null, null, null);
    assertThat(nullEntry.toString()).isEqualTo("(null,null)=null");
  }

  public void testEntryEquals() {
    Cell<String, Integer, Character> entry = immutableCell("foo", 1, 'a');

    new EqualsTester()
        .addEqualityGroup(entry, immutableCell("foo", 1, 'a'))
        .addEqualityGroup(immutableCell("bar", 1, 'a'))
        .addEqualityGroup(immutableCell("foo", 2, 'a'))

@NullMarked
public class RegularImmutableTableTest extends AbstractImmutableTableTest {
  private static final ImmutableSet<Cell<Character, Integer, String>> CELLS =
      ImmutableSet.of(
          immutableCell('a', 1, "foo"), immutableCell('b', 1, "bar"), immutableCell('a', 2, "baz"));

  private static final ImmutableSet<Character> ROW_SPACE = ImmutableSet.of('a', 'b');

  private static final ImmutableSet<Integer> COLUMN_SPACE = ImmutableSet.of(1, 2);

      Cell<R, C, V> immutableCell(
          @ParametricNullness R rowKey,
          @ParametricNullness C columnKey,
          @ParametricNullness V value) {
    return new ImmutableCell<>(rowKey, columnKey, value);
  }

  static final class ImmutableCell<
          R extends @Nullable Object, C extends @Nullable Object, V extends @Nullable Object>

      Cell<R, C, V> immutableCell(
          @ParametricNullness R rowKey,
          @ParametricNullness C columnKey,
          @ParametricNullness V value) {
    return new ImmutableCell<>(rowKey, columnKey, value);
  }

  static final class ImmutableCell<
          R extends @Nullable Object, C extends @Nullable Object, V extends @Nullable Object>

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.collect.Tables.immutableCell;
import static com.google.common.truth.Truth.assertThat;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.testing.EqualsTester;

import static com.google.common.collect.Maps.safeGet;
import static com.google.common.collect.NullnessCasts.uncheckedCastNullableTToT;
import static com.google.common.collect.Tables.immutableCell;
import static java.util.Objects.requireNonNull;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;