Set<Feature<?>> features = newHashSet(FOO);
    assertThat(addImpliedFeatures(features)).isSameInstanceAs(features);
  }

  public void testAddImpliedFeatures_addsImpliedFeatures() {
    assertThat(addImpliedFeatures(newHashSet(FOO))).containsExactly(FOO);

    assertThat(addImpliedFeatures(newHashSet(IMPLIES_IMPLIES_FOO)))

    ImmutableDoubleArray iia = ImmutableDoubleArray.of(1, 1, 2, 3, 5, 8);
    assertThat(iia.indexOf(1)).isEqualTo(0);
    assertThat(iia.indexOf(8)).isEqualTo(5);
    assertThat(iia.indexOf(4)).isEqualTo(-1);
    assertThat(ImmutableDoubleArray.of(13).indexOf(13)).isEqualTo(0);
    assertThat(ImmutableDoubleArray.of().indexOf(21)).isEqualTo(-1);
    assertThat(iia.subArray(1, 5).indexOf(1)).isEqualTo(0);
  }

  private fun assertGarbageFilesAllDeleted() {
    assertThat(filesystem.exists(getCleanFile("g1", 0))).isFalse()
    assertThat(filesystem.exists(getCleanFile("g1", 1))).isFalse()
    assertThat(filesystem.exists(getCleanFile("g2", 0))).isFalse()
    assertThat(filesystem.exists(getCleanFile("g2", 1))).isFalse()
    assertThat(filesystem.exists(cacheDir / "otherFile0")).isFalse()
    assertThat(filesystem.exists(cacheDir / "dir1")).isFalse()
  }

    assertThat(stats.loadSuccessCount()).isEqualTo(0);
    assertThat(stats.loadExceptionCount()).isEqualTo(0);
    assertThat(stats.loadCount()).isEqualTo(0);
    assertThat(stats.totalLoadTime()).isEqualTo(0);
    assertThat(stats.averageLoadPenalty()).isEqualTo(0.0);
    assertThat(stats.evictionCount()).isEqualTo(0);
  }

  public void testSingleSimpleStats() {

        final Map<String, Object> map = BeanUtil.copyBeanToNewMap(hoge);
        assertThat(map.size(), is(4));
        assertThat(map.get("aaa"), is((Object) "1"));
        assertThat(map.get("search_bbb"), is((Object) "2"));
        assertThat(map.get("search_ccc.ddd"), is((Object) "3"));
        assertThat(map.get("employee.name"), is(nullValue()));
    }

    /**
     * @throws Exception
     */

    // Check the Kotlin-focused APIs.
    assertThat(call.tag(String::class)).isEqualTo("hello")
    assertThat(call.tag(Integer::class)).isEqualTo(5)
    assertThat(call.tag(Boolean::class)).isNull()
    assertThat(call.tag(Any::class)).isNull()

    // Check the Java APIs too.
    assertThat(call.tag(String::class.java)).isEqualTo("hello")
    assertThat(call.tag(Integer::class.java)).isEqualTo(5)

    assertThat(future.isDone()).isFalse();
    assertThat(future.set(1)).isTrue();
    assertSuccessful(future, 1);
  }

  public void testSetFutureNull() throws Exception {
    assertThrows(NullPointerException.class, () -> future.setFuture(null));

    assertThat(future.isDone()).isFalse();
    assertThat(future.set(1)).isTrue();
    assertSuccessful(future, 1);
  }

    assertThat(c.size()).isEqualTo(1);
    assertThat(c.asMap().computeIfAbsent("hash-2", k -> "")).isEqualTo("");
  }

  public void testComputeEviction() {
    // b/80241237

    Cache<String, String> c = CacheBuilder.newBuilder().maximumSize(1).build();

    assertThat(c.asMap().compute("hash-1", (k, v) -> "a")).isEqualTo("a");
    assertThat(c.asMap().compute("hash-1", (k, v) -> "b")).isEqualTo("b");

  }

  public void testCount() {
    assertThat(emptyAccumulator.count()).isEqualTo(0);
    assertThat(emptyAccumulatorByAddAllEmptyPairedStats.count()).isEqualTo(0);
    assertThat(oneValueAccumulator.count()).isEqualTo(1);
    assertThat(oneValueAccumulatorByAddAllEmptyPairedStats.count()).isEqualTo(1);
    assertThat(twoValuesAccumulator.count()).isEqualTo(2);

      )

    assertThat(handshake.tlsVersion).isEqualTo(TlsVersion.TLS_1_3)
    assertThat(handshake.cipherSuite).isEqualTo(CipherSuite.TLS_AES_128_GCM_SHA256)
    assertThat(handshake.peerCertificates).containsExactly(
      serverCertificate.certificate,
      serverIntermediate.certificate,
    )
    assertThat(handshake.localPrincipal).isNull()
    assertThat(handshake.peerPrincipal)