}

  @CollectionSize.Require(SEVERAL)
  public void testFirst() {
    assertEquals(a.getKey(), navigableMap.firstKey());
  }

  @CollectionSize.Require(SEVERAL)
  public void testLast() {
    assertEquals(c.getKey(), navigableMap.lastKey());
  }

  @CollectionSize.Require(absent = ZERO)
  public void testHeadMapExclusive() {

  }

  @CollectionSize.Require(SEVERAL)
  public void testFirst() {
    assertEquals(a.getKey(), navigableMap.firstKey());
  }

  @CollectionSize.Require(SEVERAL)
  public void testLast() {
    assertEquals(c.getKey(), navigableMap.lastKey());
  }

  @CollectionSize.Require(absent = ZERO)
  public void testHeadMapExclusive() {

    assertEquals(null, navigableMap.higherEntry(c.getKey()));
    assertEquals(null, navigableMap.higherKey(c.getKey()));
  }

  @CollectionSize.Require(SEVERAL)
  public void testLast() {
    assertEquals(c, navigableMap.lastEntry());
  }

  @MapFeature.Require(SUPPORTS_REMOVE)
  @CollectionSize.Require(SEVERAL)
  public void testPollLast() {

          assertEquals(Ordering.natural().min(filtered), first);
        } catch (NoSuchElementException e) {
          assertTrue(filtered.isEmpty());
        }
      }
    }

    public void testLast() {
      for (List<Integer> contents : SAMPLE_INPUTS) {
        C filtered = filter(createUnfiltered(contents), EVEN);

        try {
          Integer first = filtered.last();

import java.util.Collection;
import java.util.Set;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.jspecify.annotations.NullUnmarked;

/**
 * @author Gregory Kick
 */
@GwtCompatible
@NullUnmarked
public class ContiguousSetTest extends TestCase {
  private static final DiscreteDomain<Integer> NOT_EQUAL_TO_INTEGERS =
      new DiscreteDomain<Integer>() {

import java.util.Collection;
import java.util.Set;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.jspecify.annotations.NullUnmarked;

/**
 * @author Gregory Kick
 */
@GwtCompatible
@NullUnmarked
public class ContiguousSetTest extends TestCase {
  private static final DiscreteDomain<Integer> NOT_EQUAL_TO_INTEGERS =
      new DiscreteDomain<Integer>() {

	}

	for i, testCase := range testCases {
		cred, err := CreateCredentials(testCase.accessKey, testCase.secretKey)

		if err != nil {
			if testCase.expectedErr == nil {
				t.Fatalf("test %v: error: expected = <nil>, got = %v", i+1, err)
			}
			if testCase.expectedErr.Error() != err.Error() {
				t.Fatalf("test %v: error: expected = %v, got = %v", i+1, testCase.expectedErr, err)
			}
		} else {

			gotIndexes, err := getSetIndexes(testCase.args, testCase.totalSizes, testCase.envOverride, argPatterns)
			if err != nil && testCase.success {
				t.Errorf("Expected success but failed instead %s", err)
			}
			if err == nil && !testCase.success {
				t.Errorf("Expected failure but passed instead")
			}
			if !reflect.DeepEqual(testCase.indexes, gotIndexes) {
				t.Errorf("Expected %v, got %v", testCase.indexes, gotIndexes)
			}
		})

				t.Error(errors.New("expected error, found success"))
			}

			if len(ekvs) != len(testCase.expectedEkvs) {
				t.Errorf("expected %v keys, got %v keys", len(testCase.expectedEkvs), len(ekvs))
			}

			if !reflect.DeepEqual(ekvs, testCase.expectedEkvs) {
				t.Errorf("expected %v, got %v", testCase.expectedEkvs, ekvs)
			}
		})
	}

			success:    false,
		},
	}

	for i, testCase := range testCases {
		t.Run(fmt.Sprintf("case-%d", i+1), func(t *testing.T) {
			_, err := NewReader(t.Context(), testCase.src, testCase.size, testCase.md5hex, testCase.sha256hex, testCase.actualSize)
			if err != nil && testCase.success {
				t.Errorf("Test %q: Expected success, but got error %s instead", testCase.desc, err)
			}
			if err == nil && !testCase.success {