assertThat(map.putIfAbsent(three, one)).isNull();
    assertThat(map.get(three)).isSameInstanceAs(one);
    assertThat(map.replace(one, three)).isSameInstanceAs(two);
    assertThat(map.get(one)).isSameInstanceAs(three);
    assertThat(map.replace(one, two, three)).isFalse();
    assertThat(map.get(one)).isSameInstanceAs(three);
    assertThat(map.replace(one, three, two)).isTrue();
    assertThat(map.get(one)).isSameInstanceAs(two);

  /*
   * Since Quantiles provides a fluent-style API, each test covers a chain of methods resulting in
   * the computation of one or more quantiles (or in an error) rather than individual methods. The
   * tests are divided into three sections:
   * 1. Tests on a hardcoded dataset for chains starting with median(), quartiles(), and scale(10);
   * 2. Tests on hardcoded datasets include non-finite values for chains starting with scale(10);

  /*
   * Since Quantiles provides a fluent-style API, each test covers a chain of methods resulting in
   * the computation of one or more quantiles (or in an error) rather than individual methods. The
   * tests are divided into three sections:
   * 1. Tests on a hardcoded dataset for chains starting with median(), quartiles(), and scale(10);
   * 2. Tests on hardcoded datasets include non-finite values for chains starting with scale(10);

  6. As an exception to the Sections above, you may also combine or
link a "work that uses the Library" with the Library to produce a
work containing portions of the Library, and distribute that work
under terms of your choice, provided that the terms permit
modification of the work for the customer's own use and reverse
engineering for debugging such modifications.

  You must give prominent notice with each copy of the work that the

        this.macSigningKey = macSigningKey;
        this.signSequence = initialSequence;
        this.bypass = bypass;

        if (log.isTraceEnabled()) {
            log.trace("macSigningKey:");
            log.trace(Hexdump.toHexString(macSigningKey, 0, macSigningKey.length));
        }
    }

    /**
     * This constructor used to instance a SigningDigest object for

        String message1 = "Test with suppression enabled";
        CrawlerSystemException exception1 = constructor.newInstance(message1, true, true);
        assertNotNull(exception1);
        assertEquals(message1, exception1.getMessage());
        assertNull(exception1.getCause());

        // Test with suppression disabled and writable stack trace

    Map<String, @Nullable Integer> map = new HashMap<>();
    map.put("One", 1);
    map.put("Three", 3);
    map.put("Null", null);
    Function<String, @Nullable Integer> function = Functions.forMap(map);

    assertEquals(1, function.apply("One").intValue());
    assertEquals(3, function.apply("Three").intValue());
    assertThat(function.apply("Null")).isNull();

        ImmutableMap.of("one", 1, "two", 2, "three", 3), "one", 1, "two", 2, "three", 3);
    assertMapEquals(
        ImmutableMap.of("one", 1, "two", 2, "three", 3, "four", 4),
        "one",
        1,
        "two",
        2,
        "three",
        3,
        "four",
        4);
    assertMapEquals(
        ImmutableMap.of("one", 1, "two", 2, "three", 3, "four", 4, "five", 5),
        "one",

        // ## Note: There's no Curl.trace() factory method, but we can use the constructor ##

        // ## Act ##
        final CurlRequest request = new CurlRequest(Method.TRACE, "http://example.com");

        // ## Assert ##
        assertNotNull(request);
        assertEquals(Method.TRACE, request.method());
    }

    @Test
    public void test_MethodEnumValueOf() {

        for (final Entry<String, Map<String, CacheEntry<DfsReferralDataInternal>>> entry : domains.entrySet()) {
            log.trace("Domain " + entry.getKey());
            for (final Entry<String, CacheEntry<DfsReferralDataInternal>> entry2 : entry.getValue().entrySet()) {
                log.trace("  Root " + entry2.getKey());
                if (entry2.getValue().map != null) {