import static java.util.Collections.singleton;

import com.google.common.annotations.GwtCompatible;
import java.util.Collections;
import java.util.Iterator;
import java.util.NoSuchElementException;
import junit.framework.TestCase;

/**
 * Unit test for {@link MinimalIterable}.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
public class MinimalIterableTest extends TestCase {

     */
    public E getFirst() {
        if (isEmpty()) {
            throw new NoSuchElementException();
        }
        return getFirstEntry().element;
    }

    /**
     * Returns the last element.
     *
     * @return the last element
     */
    public E getLast() {
        if (isEmpty()) {
            throw new NoSuchElementException();
        }
        return getLastEntry().element;
    }

    /**

import static com.google.common.collect.ReflectionFreeAssertThrows.assertThrows;

import com.google.common.annotations.GwtCompatible;
import java.util.Iterator;
import java.util.ListIterator;
import java.util.NoSuchElementException;
import junit.framework.TestCase;
import org.jspecify.annotations.NullMarked;

/**
 * Tests for UnmodifiableListIterator.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@NullMarked

 * limitations under the License.
 */

package com.google.common.collect;

import com.google.common.annotations.GwtCompatible;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.util.NoSuchElementException;
import java.util.Queue;
import org.jspecify.annotations.Nullable;

/**
 * A queue which forwards all its method calls to another queue. Subclasses should override one or

  EmptyContiguousSet(DiscreteDomain<C> domain) {
    super(domain);
  }

  @Override
  public C first() {
    throw new NoSuchElementException();
  }

  @Override
  public C last() {
    throw new NoSuchElementException();
  }

  @Override
  public int size() {
    return 0;
  }

  @Override
  public ContiguousSet<C> intersection(ContiguousSet<C> other) {

          .put(IllegalStateException.class, e -> e instanceof IllegalStateException)
          .put(IndexOutOfBoundsException.class, e -> e instanceof IndexOutOfBoundsException)
          .put(NoSuchElementException.class, e -> e instanceof NoSuchElementException)
          .put(NullPointerException.class, e -> e instanceof NullPointerException)
          .put(NumberFormatException.class, e -> e instanceof NumberFormatException)

          .put(IllegalStateException.class, e -> e instanceof IllegalStateException)
          .put(IndexOutOfBoundsException.class, e -> e instanceof IndexOutOfBoundsException)
          .put(NoSuchElementException.class, e -> e instanceof NoSuchElementException)
          .put(NullPointerException.class, e -> e instanceof NullPointerException)
          .put(NumberFormatException.class, e -> e instanceof NumberFormatException)

import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.NoSuchElementException;
import junit.framework.TestCase;

/**
 * Unit test for IteratorTester.
 *
 * @author Mick Killianey
 */
@GwtCompatible
@SuppressWarnings("serial") // No serialization is used in this test

    assertEquals(
        "next() should still return last element after peeking", "C", peekingIterator.next());

    assertThrows(NoSuchElementException.class, () -> peekingIterator.peek());
    assertThrows(NoSuchElementException.class, () -> peekingIterator.peek());
    assertThrows(NoSuchElementException.class, () -> peekingIterator.next());
  }

  public void testCantRemoveAfterPeek() {

        return true;
      } catch (ClassCastException e) {
        return false;
      } catch (NoSuchElementException e) {
        return false; // concurrent change to other set
      }
    }
    return containsAll(that);
  }

  @Override
  public E first() {
    if (isEmpty()) {
      throw new NoSuchElementException();
    }
    return elements.get(0);
  }

  @Override
  public E last() {