}

  public void testToString() {
    assertEquals("{}", INSTANCE.toString());
  }

  public void testSize() {
    assertEquals(0, INSTANCE.size());
  }

  public void testGet() {
    assertNull(INSTANCE.get('a', 1));
  }

  public void testIsEmpty() {
    assertTrue(INSTANCE.isEmpty());
  }

  public void testCellSet() {
    assertEquals(ImmutableSet.of(), INSTANCE.cellSet());
  }

    assertEquals(0, stats.missCount());
    assertEquals(0, stats.loadSuccessCount());
    assertEquals(0, stats.loadExceptionCount());
    assertEquals(0, stats.hitCount());

    assertEquals(ImmutableMap.of(), cache.getAllPresent(ImmutableList.<Integer>of()));
    stats = cache.stats();
    assertEquals(0, stats.missCount());
    assertEquals(0, stats.loadSuccessCount());
    assertEquals(0, stats.loadExceptionCount());

  public void testMergePresent() {
    assertEquals(
        "Map.merge(present, value, function) should return function result",
        v4(),
        getMap()
            .merge(
                k0(),
                v3(),
                (oldV, newV) -> {
                  assertEquals(v0(), oldV);
                  assertEquals(v3(), newV);
                  return v4();
                }));

public class FuturesGetUncheckedTest extends TestCase {
  public void testGetUnchecked_success() {
    assertEquals("foo", getUnchecked(immediateFuture("foo")));
  }

  @J2ktIncompatible
  @GwtIncompatible // Thread.interrupt
  public void testGetUnchecked_interrupted() {
    Thread.currentThread().interrupt();
    try {
      assertEquals("foo", getUnchecked(immediateFuture("foo")));
      assertTrue(Thread.currentThread().isInterrupted());

public class FuturesGetUncheckedTest extends TestCase {
  public void testGetUnchecked_success() {
    assertEquals("foo", getUnchecked(immediateFuture("foo")));
  }

  @J2ktIncompatible
  @GwtIncompatible // Thread.interrupt
  public void testGetUnchecked_interrupted() {
    Thread.currentThread().interrupt();
    try {
      assertEquals("foo", getUnchecked(immediateFuture("foo")));
      assertTrue(Thread.currentThread().isInterrupted());

        assertEquals(0, parameterMap.size());

        parameters = "domain\nworkstation";
        parameterMap = ParameterUtil.parse(parameters);
        assertEquals(2, parameterMap.size());
        assertEquals("", parameterMap.get("domain"));
        assertEquals("", parameterMap.get("workstation"));

        parameters = "domain=\nworkstation=";
        parameterMap = ParameterUtil.parse(parameters);

      assertEquals(hashUtf8, murmur3_32().newHasher().putBytes(str.getBytes(UTF_8)).hash());
      assertEquals(hashUtf8, murmur3_32().hashString(str, UTF_8));
      assertEquals(hashUtf8, murmur3_32().newHasher().putString(str, UTF_8).hash());
      HashCode hashUtf16 = murmur3_32().hashBytes(str.getBytes(UTF_16));

    assertEquals(0, stats.loadCount());
    assertEquals(0, stats.totalLoadTime());
    assertThat(stats.averageLoadPenalty()).isEqualTo(0.0);
    assertEquals(0, stats.evictionCount());
  }

  public void testSingle() {
    CacheStats stats = new CacheStats(11, 13, 17, 19, 23, 27);
    assertEquals(24, stats.requestCount());
    assertEquals(11, stats.hitCount());
    assertThat(stats.hitRate()).isEqualTo(11.0 / 24);

    }

    assertTrue(source.wasStreamClosed());
    assertEquals(SPLIT_LINES, lines);
  }

  public void testCopyTo_appendable() throws IOException {
    StringBuilder builder = new StringBuilder();

    assertEquals(STRING.length(), source.copyTo(builder));
    assertTrue(source.wasStreamOpened() && source.wasStreamClosed());

    assertEquals(STRING, builder.toString());
  }

    String s = "\0\n\t\\az09~\uD800\uDC00\uFFFF";
    assertEquals("null escaper should have no effect", s, escaper.escape(s));
  }

  public void testBuilderInitialStateNoReplacement() {
    // Unsafe characters aren't modified by default (unsafeReplacement == null).
    Escaper escaper = Escapers.builder().setSafeRange('a', 'z').build();
    assertEquals("The Quick Brown Fox", escaper.escape("The Quick Brown Fox"));
  }