assertThat(Ascii.toLowerCase(IGNORED)).isEqualTo(IGNORED);
    assertThat(Ascii.toLowerCase("fOobaR")).isEqualTo("foobar");
  }

  public void testToUpperCase() {
    assertThat(Ascii.toUpperCase(LOWER)).isEqualTo(UPPER);
    assertThat(Ascii.toUpperCase(UPPER)).isSameInstanceAs(UPPER);
    assertThat(Ascii.toUpperCase(IGNORED)).isEqualTo(IGNORED);
    assertThat(Ascii.toUpperCase("FoOBAr")).isEqualTo("FOOBAR");

    assertThat(Ascii.toLowerCase(IGNORED)).isEqualTo(IGNORED);
    assertThat(Ascii.toLowerCase("fOobaR")).isEqualTo("foobar");
  }

  public void testToUpperCase() {
    assertThat(Ascii.toUpperCase(LOWER)).isEqualTo(UPPER);
    assertThat(Ascii.toUpperCase(UPPER)).isSameInstanceAs(UPPER);
    assertThat(Ascii.toUpperCase(IGNORED)).isEqualTo(IGNORED);
    assertThat(Ascii.toUpperCase("FoOBAr")).isEqualTo("FOOBAR");

  }

  @Override
  protected boolean removeEldestEntry(Entry<K, Timestamped<V>> ignored) {
    boolean removal = (maximumSize == LocalCache.UNSET_INT) ? false : (size() > maximumSize);
    if ((removalListener != null) && removal) {
      removalListener.onRemoval(
          RemovalNotification.create(
              ignored.getKey(), ignored.getValue().getValue(), RemovalCause.SIZE));
    }
    statsCounter.recordEviction();

    inputFuture.cancel(true); // argument is ignored
    assertThrows(CancellationException.class, () -> resultFuture.get());
  }

  public void testFutureGetThrowsCancellationIfOutputCancelled() throws Exception {
    inputFuture.set(SLOW_OUTPUT_VALID_INPUT_DATA);
    outputFuture.cancel(true); // argument is ignored
    assertThrows(CancellationException.class, () -> resultFuture.get());
  }

    inputFuture.cancel(true); // argument is ignored
    assertThrows(CancellationException.class, () -> resultFuture.get());
  }

  public void testFutureGetThrowsCancellationIfOutputCancelled() throws Exception {
    inputFuture.set(SLOW_OUTPUT_VALID_INPUT_DATA);
    outputFuture.cancel(true); // argument is ignored
    assertThrows(CancellationException.class, () -> resultFuture.get());
  }

public enum IteratorFeature {
  /** Support for {@link Iterator#remove()}. */
  SUPPORTS_REMOVE,
  /**
   * Support for {@link ListIterator#add(Object)}; ignored for plain {@link Iterator}
   * implementations.
   */
  SUPPORTS_ADD,
  /**
   * Support for {@link ListIterator#set(Object)}; ignored for plain {@link Iterator}
   * implementations.
   */
  SUPPORTS_SET;

  /**

    "deviation ".encodeUtf8(),
    // 1.
    "disallowed ".encodeUtf8(),
    // 2.
    "disallowed_STD3_mapped ".encodeUtf8(),
    // 3.
    "disallowed_STD3_valid ".encodeUtf8(),
    // 4.
    "ignored ".encodeUtf8(),
    // 5.
    "mapped ".encodeUtf8(),
    // 6.
    "valid ".encodeUtf8(),
  )

internal const val TYPE_DEVIATION = 0
internal const val TYPE_DISALLOWED = 1

	return func() {
		initialStackSnapShot.DetectLeak(t)
	}
}

// list of functions to be ignored from the stack trace.
// Leak detection is done when tests are run, should ignore the tests related functions,
// and other runtime functions while identifying leaks.
var ignoredStackFns = []string{
	"",
	// Below are the stacks ignored by the upstream leaktest code.
	"testing.Main(",
	"testing.tRunner(",
	"testing.tRunner(",

# Files that should be ignored by tools which do not want to consider generated
# code.
#
# https://github.com/kubernetes/test-infra/blob/master/prow/plugins/size/size.go
#
# This file is a series of lines, each of the form:
#     <type> <name>
#
# Type can be:
#    path - an exact path to a single file
#    file-name - an exact leaf filename, regardless of path
#    path-prefix - a prefix match on the file path

                      try {
                        shutDown();
                      } catch (Exception ignored) {
                        restoreInterruptIfIsInterruptedException(ignored);
                        t.addSuppressed(ignored);
                      }
                      notifyFailed(t);
                      return;
                    }
                  }