/*
     * Maybe it rejects all elements, or maybe it adds "a" before failing.
     * Either way is fine with us.
     */
    if (result.isEmpty()) {
      return;
    }
    assertTrue(ImmutableList.of("a").equals(result));
    assertEquals(1, result.size());
  }

  public void testBuilderAddCollectionHandlesNulls() {
    List<@Nullable String> elements = asList("a", null, "b");

import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertSame;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.isNull;
import static org.mockito.ArgumentMatchers.same;
import static org.mockito.Mockito.doAnswer;

package org.codelibs.fess.suggest;

import static org.codelibs.opensearch.runner.OpenSearchRunner.newConfigs;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

import java.time.ZonedDateTime;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import static java.util.Collections.singleton;
import static java.util.Collections.unmodifiableList;
import static junit.framework.TestCase.assertEquals;
import static junit.framework.TestCase.assertTrue;
import static junit.framework.TestCase.fail;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.ArrayListMultimap;
import com.google.common.collect.LinkedHashMultiset;

    }

    /* Read in various values in LITTLE ENDIAN FORMAT */
    byte[] b = new byte[2];
    in.readFully(b);
    assertEquals(-100, b[0]);
    assertEquals(100, b[1]);
    assertTrue(in.readBoolean());
    assertFalse(in.readBoolean());
  }

  }

  public void testRemoveUnsupported() {
    Multiset<String> multiset = new NoRemoveMultiset<>();
    multiset.add("a");
    assertThrows(UnsupportedOperationException.class, () -> multiset.remove("a"));
    assertTrue(multiset.contains("a"));
  }

  private static class NoRemoveMultiset<E extends @Nullable Object> extends AbstractMultiset<E>
      implements Serializable {
    final Map<E, Integer> backingMap = new HashMap<>();

    registry.register(s1);
    registry.register(s2);

    registry.unregister(s1);
    assertEquals(1, registry.getSubscribersForTesting(String.class).size());

    registry.unregister(s2);
    assertTrue(registry.getSubscribersForTesting(String.class).isEmpty());
  }

  public void testUnregister_notRegistered() {
    assertThrows(IllegalArgumentException.class, () -> registry.unregister(new StringSubscriber()));

  }

  private void expectReturnsTrue(Target target) {
    String message = Platform.format("retainAll(%s) should return true", target);
    assertTrue(message, collection.retainAll(target.toRetain));
  }

  private void expectReturnsFalse(Target target) {
    String message = Platform.format("retainAll(%s) should return false", target);

            ? unmodifiableIterable(concurrentlyMutatedList)
            : concurrentlyMutatedList;

    ImmutableList<Integer> copyOfIterable = ImmutableList.copyOf(iterableToCopy);

    assertTrue(concurrentlyMutatedList.getAllStates().contains(copyOfIterable));
  }

  private static void runConcurrentlyMutatedTest(WrapWithIterable wrap) {
    /*

            assertTrue(context instanceof NegotiateContextRequest);
        }

        @Test
        @DisplayName("Should implement NegotiateContextResponse interface")
        void testImplementsNegotiateContextResponse() {
            PreauthIntegrityNegotiateContext context = new PreauthIntegrityNegotiateContext();

            assertTrue(context instanceof NegotiateContextResponse);
        }