Java Code Examples for java.util.Comparator#thenComparing()

The following examples show how to use java.util.Comparator#thenComparing() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: CompositeOrderComparator.java    From openAGV with Apache License 2.0 6 votes vote down vote up 
@Inject
public CompositeOrderComparator(DefaultDispatcherConfiguration configuration,
                                Map<String, Comparator<TransportOrder>> availableComparators) {
  // At the end, if all other comparators failed to see a difference, compare by age.
  // As the age of two distinct transport orders may still be the same, finally compare by name.
  // Add configured comparators before these two.
  Comparator<TransportOrder> composite
      = new TransportOrderComparatorByAge().thenComparing(new TransportOrderComparatorByName());

  for (String priorityKey : Lists.reverse(configuration.orderPriorities())) {
    Comparator<TransportOrder> configuredComparator = availableComparators.get(priorityKey);
    checkArgument(configuredComparator != null, "Unknown order priority key: %s", priorityKey);
    composite = configuredComparator.thenComparing(composite);
  }
  this.compositeComparator = composite;
}
Example 2
Source File: CompositeOrderCandidateComparator.java    From openAGV with Apache License 2.0 6 votes vote down vote up 
@Inject
public CompositeOrderCandidateComparator(
    DefaultDispatcherConfiguration configuration,
    Map<String, Comparator<AssignmentCandidate>> availableComparators) {
  // At the end, if all other comparators failed to see a difference, compare by age.
  // As the age of two distinct transport orders may still be the same, finally compare by name.
  // Add configured comparators before these two.
  Comparator<AssignmentCandidate> composite
      = new CandidateComparatorByOrderAge().thenComparing(new CandidateComparatorByOrderName());

  for (String priorityKey : Lists.reverse(configuration.orderCandidatePriorities())) {
    Comparator<AssignmentCandidate> configuredComparator = availableComparators.get(priorityKey);
    checkArgument(configuredComparator != null,
                  "Unknown order candidate priority key: %s",
                  priorityKey);
    composite = configuredComparator.thenComparing(composite);
  }
  this.compositeComparator = composite;
}
Example 3
Source File: CompositeVehicleComparator.java    From openAGV with Apache License 2.0 6 votes vote down vote up 
@Inject
public CompositeVehicleComparator(DefaultDispatcherConfiguration configuration,
                                  Map<String, Comparator<Vehicle>> availableComparators) {
  // At the end, if all other comparators failed to see a difference, compare by energy level.
  // As the energy level of two distinct vehicles may still be the same, finally compare by name.
  // Add configured comparators before these two.
  Comparator<Vehicle> composite
      = new VehicleComparatorByEnergyLevel().thenComparing(new VehicleComparatorByName());

  for (String priorityKey : Lists.reverse(configuration.vehiclePriorities())) {
    Comparator<Vehicle> configuredComparator = availableComparators.get(priorityKey);
    checkArgument(configuredComparator != null, "Unknown vehicle priority key: %s", priorityKey);
    composite = configuredComparator.thenComparing(composite);
  }
  this.compositeComparator = composite;
}
Example 4
Source File: ApiVersionComparator.java    From intellij-kubernetes with Apache License 2.0 6 votes vote down vote up 
@Override
public int compare(final String o1, final String o2) {
    final Matcher matcherOne = VERSION_FORMAT_REGEX.matcher(o1);
    final Matcher matcherTwo = VERSION_FORMAT_REGEX.matcher(o2);

    // Fall back to simple string comparision if either of the versions cannot be parsed
    if (!matcherOne.matches() || !matcherTwo.matches()) {
        return o1.compareTo(o2);
    }

    Comparator<Matcher> comparator = Comparator.comparing(m -> m.group("group"), Comparator.nullsFirst(Comparator.naturalOrder()));
    comparator = comparator.thenComparingInt(m -> Integer.parseInt(m.group("major")));
    comparator = comparator.thenComparing(m -> m.group("minor"), Comparator.nullsLast(Comparator.naturalOrder()));

    return comparator.compare(matcherOne, matcherTwo);
}
Example 5
Source File: BasicTest.java    From dragonwell8_jdk with GNU General Public License v2.0 5 votes vote down vote up 
public void testComposeComparator() {
    // Longer string in front
    Comparator<String> first = (s1, s2) -> s2.length() - s1.length();
    Comparator<String> second = Comparator.naturalOrder();
    Comparator<String> composed = first.thenComparing(second);

    assertTrue(composed.compare("abcdefg", "abcdef") < 0);
    assertTrue(composed.compare("abcdef", "abcdefg") > 0);
    assertTrue(composed.compare("abcdef", "abcdef") == 0);
    assertTrue(composed.compare("abcdef", "ghijkl") < 0);
    assertTrue(composed.compare("ghijkl", "abcdefg") > 0);
}
Example 6
Source File: EntryComparators.java    From openjdk-8-source with GNU General Public License v2.0 5 votes vote down vote up 
public void testKVComparators() {
    // Comparator<People> cmp = Comparator.naturalOrder(); // Should fail to compiler as People is not comparable
    // We can use simple comparator, but those have been tested above.
    // Thus choose to do compose for some level of interation.
    Comparator<People> cmp1 = Comparator.comparing(People::getFirstName);
    Comparator<People> cmp2 = Comparator.comparing(People::getLastName);
    Comparator<People> cmp = cmp1.thenComparing(cmp2);

    assertPairComparison(people[0], people[0], people[1], people[1],
                     Map.Entry.<People, People>comparingByKey(cmp),
                     Map.Entry.<People, People>comparingByValue(cmp));

}
Example 7
Source File: BasicTest.java    From jdk8u_jdk with GNU General Public License v2.0 5 votes vote down vote up 
public void testNullsFirst() {
    Comparator<String> strcmp = Comparator.nullsFirst(Comparator.naturalOrder());
    Comparator<People> cmp = Comparator.comparing(People::getLastName, strcmp)
                                       .thenComparing(People::getFirstName, strcmp);
    // Mary.null vs Mary.Cook - solve by last name
    assertComparison(cmp, people[6], people[5]);
    // John.null vs Mary.null - solve by first name
    assertComparison(cmp, people[7], people[6]);

    // More than one thenComparing
    strcmp = Comparator.nullsFirst(Comparator.comparingInt(String::length)
                                             .thenComparing(String.CASE_INSENSITIVE_ORDER));
    assertComparison(strcmp, null, "abc");
    assertComparison(strcmp, "ab", "abc");
    assertComparison(strcmp, "abc", "def");
    assertEquals(0, strcmp.compare("abc", "ABC"));

    // Ensure reverse still handle null properly
    Comparator<String> strcmp2 = strcmp.reversed().thenComparing(Comparator.naturalOrder());
    assertComparison(strcmp2, "abc", null);
    assertComparison(strcmp2, "abc", "ab");
    assertComparison(strcmp2, "def", "abc");
    assertComparison(strcmp2, "ABC", "abc");

    // Considering non-null values to be equal
    Comparator<String> blind = Comparator.nullsFirst(null);
    assertComparison(blind, null, "abc");
    assertEquals(0, blind.compare("abc", "def"));
    // reverse still consider non-null values to be equal
    strcmp = blind.reversed();
    assertComparison(strcmp, "abc", null);
    assertEquals(0, strcmp.compare("abc", "def"));
    // chain with another comparator to compare non-nulls
    strcmp = blind.thenComparing(Comparator.naturalOrder());
    assertComparison(strcmp, null, "abc");
    assertComparison(strcmp, "abc", "def");
}
Example 8
Source File: BasicTest.java    From jdk8u60 with GNU General Public License v2.0 5 votes vote down vote up 
public void testComposeComparator() {
    // Longer string in front
    Comparator<String> first = (s1, s2) -> s2.length() - s1.length();
    Comparator<String> second = Comparator.naturalOrder();
    Comparator<String> composed = first.thenComparing(second);

    assertTrue(composed.compare("abcdefg", "abcdef") < 0);
    assertTrue(composed.compare("abcdef", "abcdefg") > 0);
    assertTrue(composed.compare("abcdef", "abcdef") == 0);
    assertTrue(composed.compare("abcdef", "ghijkl") < 0);
    assertTrue(composed.compare("ghijkl", "abcdefg") > 0);
}
Example 9
Source File: BasicTest.java    From hottub with GNU General Public License v2.0 5 votes vote down vote up 
public void testComposeComparator() {
    // Longer string in front
    Comparator<String> first = (s1, s2) -> s2.length() - s1.length();
    Comparator<String> second = Comparator.naturalOrder();
    Comparator<String> composed = first.thenComparing(second);

    assertTrue(composed.compare("abcdefg", "abcdef") < 0);
    assertTrue(composed.compare("abcdef", "abcdefg") > 0);
    assertTrue(composed.compare("abcdef", "abcdef") == 0);
    assertTrue(composed.compare("abcdef", "ghijkl") < 0);
    assertTrue(composed.compare("ghijkl", "abcdefg") > 0);
}
Example 10
Source File: BasicTest.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 5 votes vote down vote up 
public void testComposeComparator() {
    // Longer string in front
    Comparator<String> first = (s1, s2) -> s2.length() - s1.length();
    Comparator<String> second = Comparator.naturalOrder();
    Comparator<String> composed = first.thenComparing(second);

    assertTrue(composed.compare("abcdefg", "abcdef") < 0);
    assertTrue(composed.compare("abcdef", "abcdefg") > 0);
    assertTrue(composed.compare("abcdef", "abcdef") == 0);
    assertTrue(composed.compare("abcdef", "ghijkl") < 0);
    assertTrue(composed.compare("ghijkl", "abcdefg") > 0);
}
Example 11
Source File: EntryComparators.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
public void testKVComparators() {
    // Comparator<People> cmp = Comparator.naturalOrder(); // Should fail to compiler as People is not comparable
    // We can use simple comparator, but those have been tested above.
    // Thus choose to do compose for some level of interation.
    Comparator<People> cmp1 = Comparator.comparing(People::getFirstName);
    Comparator<People> cmp2 = Comparator.comparing(People::getLastName);
    Comparator<People> cmp = cmp1.thenComparing(cmp2);

    assertPairComparison(people[0], people[0], people[1], people[1],
                     Map.Entry.<People, People>comparingByKey(cmp),
                     Map.Entry.<People, People>comparingByValue(cmp));

}
Example 12
Source File: EntryComparators.java    From openjdk-jdk8u with GNU General Public License v2.0 5 votes vote down vote up 
public void testKVComparators() {
    // Comparator<People> cmp = Comparator.naturalOrder(); // Should fail to compiler as People is not comparable
    // We can use simple comparator, but those have been tested above.
    // Thus choose to do compose for some level of interation.
    Comparator<People> cmp1 = Comparator.comparing(People::getFirstName);
    Comparator<People> cmp2 = Comparator.comparing(People::getLastName);
    Comparator<People> cmp = cmp1.thenComparing(cmp2);

    assertPairComparison(people[0], people[0], people[1], people[1],
                     Map.Entry.<People, People>comparingByKey(cmp),
                     Map.Entry.<People, People>comparingByValue(cmp));

}
Example 13
Source File: BasicTest.java    From openjdk-jdk8u with GNU General Public License v2.0 5 votes vote down vote up 
public void testNullsFirst() {
    Comparator<String> strcmp = Comparator.nullsFirst(Comparator.naturalOrder());
    Comparator<People> cmp = Comparator.comparing(People::getLastName, strcmp)
                                       .thenComparing(People::getFirstName, strcmp);
    // Mary.null vs Mary.Cook - solve by last name
    assertComparison(cmp, people[6], people[5]);
    // John.null vs Mary.null - solve by first name
    assertComparison(cmp, people[7], people[6]);

    // More than one thenComparing
    strcmp = Comparator.nullsFirst(Comparator.comparingInt(String::length)
                                             .thenComparing(String.CASE_INSENSITIVE_ORDER));
    assertComparison(strcmp, null, "abc");
    assertComparison(strcmp, "ab", "abc");
    assertComparison(strcmp, "abc", "def");
    assertEquals(0, strcmp.compare("abc", "ABC"));

    // Ensure reverse still handle null properly
    Comparator<String> strcmp2 = strcmp.reversed().thenComparing(Comparator.naturalOrder());
    assertComparison(strcmp2, "abc", null);
    assertComparison(strcmp2, "abc", "ab");
    assertComparison(strcmp2, "def", "abc");
    assertComparison(strcmp2, "ABC", "abc");

    // Considering non-null values to be equal
    Comparator<String> blind = Comparator.nullsFirst(null);
    assertComparison(blind, null, "abc");
    assertEquals(0, blind.compare("abc", "def"));
    // reverse still consider non-null values to be equal
    strcmp = blind.reversed();
    assertComparison(strcmp, "abc", null);
    assertEquals(0, strcmp.compare("abc", "def"));
    // chain with another comparator to compare non-nulls
    strcmp = blind.thenComparing(Comparator.naturalOrder());
    assertComparison(strcmp, null, "abc");
    assertComparison(strcmp, "abc", "def");
}
Example 14
Source File: BasicTest.java    From jdk8u-jdk with GNU General Public License v2.0 5 votes vote down vote up 
public void testNullsLast() {
    Comparator<String> strcmp = Comparator.nullsLast(Comparator.naturalOrder());
    Comparator<People> cmp = Comparator.comparing(People::getLastName, strcmp)
                                       .thenComparing(People::getFirstName, strcmp);
    // Mary.null vs Mary.Cook - solve by last name
    assertComparison(cmp, people[5], people[6]);
    // John.null vs Mary.null - solve by first name
    assertComparison(cmp, people[7], people[6]);

    // More than one thenComparing
    strcmp = Comparator.nullsLast(Comparator.comparingInt(String::length)
                                            .thenComparing(String.CASE_INSENSITIVE_ORDER));
    assertComparison(strcmp, "abc", null);
    assertComparison(strcmp, "ab", "abc");
    assertComparison(strcmp, "abc", "def");

    // Ensure reverse still handle null properly
    Comparator<String> strcmp2 = strcmp.reversed().thenComparing(Comparator.naturalOrder());
    assertComparison(strcmp2, null, "abc");
    assertComparison(strcmp2, "abc", "ab");
    assertComparison(strcmp2, "def", "abc");
    assertComparison(strcmp2, "ABC", "abc");

    // Considering non-null values to be equal
    Comparator<String> blind = Comparator.nullsLast(null);
    assertComparison(blind, "abc", null);
    assertEquals(0, blind.compare("abc", "def"));
    // reverse still consider non-null values to be equal
    strcmp = blind.reversed();
    assertComparison(strcmp, null, "abc");
    assertEquals(0, strcmp.compare("abc", "def"));
    // chain with another comparator to compare non-nulls
    strcmp = blind.thenComparing(Comparator.naturalOrder());
    assertComparison(strcmp, "abc", null);
    assertComparison(strcmp, "abc", "def");
}
Example 15
Source File: BasicTest.java    From jdk8u-dev-jdk with GNU General Public License v2.0 5 votes vote down vote up 
public void testNullsLast() {
    Comparator<String> strcmp = Comparator.nullsLast(Comparator.naturalOrder());
    Comparator<People> cmp = Comparator.comparing(People::getLastName, strcmp)
                                       .thenComparing(People::getFirstName, strcmp);
    // Mary.null vs Mary.Cook - solve by last name
    assertComparison(cmp, people[5], people[6]);
    // John.null vs Mary.null - solve by first name
    assertComparison(cmp, people[7], people[6]);

    // More than one thenComparing
    strcmp = Comparator.nullsLast(Comparator.comparingInt(String::length)
                                            .thenComparing(String.CASE_INSENSITIVE_ORDER));
    assertComparison(strcmp, "abc", null);
    assertComparison(strcmp, "ab", "abc");
    assertComparison(strcmp, "abc", "def");

    // Ensure reverse still handle null properly
    Comparator<String> strcmp2 = strcmp.reversed().thenComparing(Comparator.naturalOrder());
    assertComparison(strcmp2, null, "abc");
    assertComparison(strcmp2, "abc", "ab");
    assertComparison(strcmp2, "def", "abc");
    assertComparison(strcmp2, "ABC", "abc");

    // Considering non-null values to be equal
    Comparator<String> blind = Comparator.nullsLast(null);
    assertComparison(blind, "abc", null);
    assertEquals(0, blind.compare("abc", "def"));
    // reverse still consider non-null values to be equal
    strcmp = blind.reversed();
    assertComparison(strcmp, null, "abc");
    assertEquals(0, strcmp.compare("abc", "def"));
    // chain with another comparator to compare non-nulls
    strcmp = blind.thenComparing(Comparator.naturalOrder());
    assertComparison(strcmp, "abc", null);
    assertComparison(strcmp, "abc", "def");
}
Example 16
Source File: EntryComparators.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 5 votes vote down vote up 
public void testKVComparators() {
    // Comparator<People> cmp = Comparator.naturalOrder(); // Should fail to compiler as People is not comparable
    // We can use simple comparator, but those have been tested above.
    // Thus choose to do compose for some level of interation.
    Comparator<People> cmp1 = Comparator.comparing(People::getFirstName);
    Comparator<People> cmp2 = Comparator.comparing(People::getLastName);
    Comparator<People> cmp = cmp1.thenComparing(cmp2);

    assertPairComparison(people[0], people[0], people[1], people[1],
                     Map.Entry.<People, People>comparingByKey(cmp),
                     Map.Entry.<People, People>comparingByValue(cmp));

}
Example 17
Source File: BasicTest.java    From openjdk-8-source with GNU General Public License v2.0 5 votes vote down vote up 
public void testComposeComparator() {
    // Longer string in front
    Comparator<String> first = (s1, s2) -> s2.length() - s1.length();
    Comparator<String> second = Comparator.naturalOrder();
    Comparator<String> composed = first.thenComparing(second);

    assertTrue(composed.compare("abcdefg", "abcdef") < 0);
    assertTrue(composed.compare("abcdef", "abcdefg") > 0);
    assertTrue(composed.compare("abcdef", "abcdef") == 0);
    assertTrue(composed.compare("abcdef", "ghijkl") < 0);
    assertTrue(composed.compare("ghijkl", "abcdefg") > 0);
}
Example 18
Source File: EntryComparators.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 4 votes vote down vote up 
private <K, V> void assertPairComparison(K k1, V v1, K k2, V v2,
                                    Comparator<Map.Entry<K, V>> ck,
                                    Comparator<Map.Entry<K, V>> cv) {
    final Map.Entry<K, V> p11 = new AbstractMap.SimpleImmutableEntry<>(k1, v1);
    final Map.Entry<K, V> p12 = new AbstractMap.SimpleImmutableEntry<>(k1, v2);
    final Map.Entry<K, V> p21 = new AbstractMap.SimpleImmutableEntry<>(k2, v1);
    final Map.Entry<K, V> p22 = new AbstractMap.SimpleImmutableEntry<>(k2, v2);

    assertTrue(ck.compare(p11, p11) == 0);
    assertTrue(ck.compare(p12, p11) == 0);
    assertTrue(ck.compare(p11, p12) == 0);
    assertTrue(ck.compare(p12, p22) < 0);
    assertTrue(ck.compare(p12, p21) < 0);
    assertTrue(ck.compare(p21, p11) > 0);
    assertTrue(ck.compare(p21, p12) > 0);

    assertTrue(cv.compare(p11, p11) == 0);
    assertTrue(cv.compare(p12, p11) > 0);
    assertTrue(cv.compare(p11, p12) < 0);
    assertTrue(cv.compare(p12, p22) == 0);
    assertTrue(cv.compare(p12, p21) > 0);
    assertTrue(cv.compare(p21, p11) == 0);
    assertTrue(cv.compare(p21, p12) < 0);

    Comparator<Map.Entry<K, V>> cmp = ck.thenComparing(cv);
    assertTrue(cmp.compare(p11, p11) == 0);
    assertTrue(cmp.compare(p12, p11) > 0);
    assertTrue(cmp.compare(p11, p12) < 0);
    assertTrue(cmp.compare(p12, p22) < 0);
    assertTrue(cmp.compare(p12, p21) < 0);
    assertTrue(cmp.compare(p21, p11) > 0);
    assertTrue(cmp.compare(p21, p12) > 0);

    cmp = cv.thenComparing(ck);
    assertTrue(cmp.compare(p11, p11) == 0);
    assertTrue(cmp.compare(p12, p11) > 0);
    assertTrue(cmp.compare(p11, p12) < 0);
    assertTrue(cmp.compare(p12, p22) < 0);
    assertTrue(cmp.compare(p12, p21) > 0);
    assertTrue(cmp.compare(p21, p11) > 0);
    assertTrue(cmp.compare(p21, p12) < 0);
}
Example 19
Source File: EntryComparators.java    From hottub with GNU General Public License v2.0 4 votes vote down vote up 
private <K, V> void assertPairComparison(K k1, V v1, K k2, V v2,
                                    Comparator<Map.Entry<K, V>> ck,
                                    Comparator<Map.Entry<K, V>> cv) {
    final Map.Entry<K, V> p11 = new AbstractMap.SimpleImmutableEntry<>(k1, v1);
    final Map.Entry<K, V> p12 = new AbstractMap.SimpleImmutableEntry<>(k1, v2);
    final Map.Entry<K, V> p21 = new AbstractMap.SimpleImmutableEntry<>(k2, v1);
    final Map.Entry<K, V> p22 = new AbstractMap.SimpleImmutableEntry<>(k2, v2);

    assertTrue(ck.compare(p11, p11) == 0);
    assertTrue(ck.compare(p12, p11) == 0);
    assertTrue(ck.compare(p11, p12) == 0);
    assertTrue(ck.compare(p12, p22) < 0);
    assertTrue(ck.compare(p12, p21) < 0);
    assertTrue(ck.compare(p21, p11) > 0);
    assertTrue(ck.compare(p21, p12) > 0);

    assertTrue(cv.compare(p11, p11) == 0);
    assertTrue(cv.compare(p12, p11) > 0);
    assertTrue(cv.compare(p11, p12) < 0);
    assertTrue(cv.compare(p12, p22) == 0);
    assertTrue(cv.compare(p12, p21) > 0);
    assertTrue(cv.compare(p21, p11) == 0);
    assertTrue(cv.compare(p21, p12) < 0);

    Comparator<Map.Entry<K, V>> cmp = ck.thenComparing(cv);
    assertTrue(cmp.compare(p11, p11) == 0);
    assertTrue(cmp.compare(p12, p11) > 0);
    assertTrue(cmp.compare(p11, p12) < 0);
    assertTrue(cmp.compare(p12, p22) < 0);
    assertTrue(cmp.compare(p12, p21) < 0);
    assertTrue(cmp.compare(p21, p11) > 0);
    assertTrue(cmp.compare(p21, p12) > 0);

    cmp = cv.thenComparing(ck);
    assertTrue(cmp.compare(p11, p11) == 0);
    assertTrue(cmp.compare(p12, p11) > 0);
    assertTrue(cmp.compare(p11, p12) < 0);
    assertTrue(cmp.compare(p12, p22) < 0);
    assertTrue(cmp.compare(p12, p21) > 0);
    assertTrue(cmp.compare(p21, p11) > 0);
    assertTrue(cmp.compare(p21, p12) < 0);
}
Example 20
Source File: EntryComparators.java    From jdk8u60 with GNU General Public License v2.0 4 votes vote down vote up 
private <K, V> void assertPairComparison(K k1, V v1, K k2, V v2,
                                    Comparator<Map.Entry<K, V>> ck,
                                    Comparator<Map.Entry<K, V>> cv) {
    final Map.Entry<K, V> p11 = new AbstractMap.SimpleImmutableEntry<>(k1, v1);
    final Map.Entry<K, V> p12 = new AbstractMap.SimpleImmutableEntry<>(k1, v2);
    final Map.Entry<K, V> p21 = new AbstractMap.SimpleImmutableEntry<>(k2, v1);
    final Map.Entry<K, V> p22 = new AbstractMap.SimpleImmutableEntry<>(k2, v2);

    assertTrue(ck.compare(p11, p11) == 0);
    assertTrue(ck.compare(p12, p11) == 0);
    assertTrue(ck.compare(p11, p12) == 0);
    assertTrue(ck.compare(p12, p22) < 0);
    assertTrue(ck.compare(p12, p21) < 0);
    assertTrue(ck.compare(p21, p11) > 0);
    assertTrue(ck.compare(p21, p12) > 0);

    assertTrue(cv.compare(p11, p11) == 0);
    assertTrue(cv.compare(p12, p11) > 0);
    assertTrue(cv.compare(p11, p12) < 0);
    assertTrue(cv.compare(p12, p22) == 0);
    assertTrue(cv.compare(p12, p21) > 0);
    assertTrue(cv.compare(p21, p11) == 0);
    assertTrue(cv.compare(p21, p12) < 0);

    Comparator<Map.Entry<K, V>> cmp = ck.thenComparing(cv);
    assertTrue(cmp.compare(p11, p11) == 0);
    assertTrue(cmp.compare(p12, p11) > 0);
    assertTrue(cmp.compare(p11, p12) < 0);
    assertTrue(cmp.compare(p12, p22) < 0);
    assertTrue(cmp.compare(p12, p21) < 0);
    assertTrue(cmp.compare(p21, p11) > 0);
    assertTrue(cmp.compare(p21, p12) > 0);

    cmp = cv.thenComparing(ck);
    assertTrue(cmp.compare(p11, p11) == 0);
    assertTrue(cmp.compare(p12, p11) > 0);
    assertTrue(cmp.compare(p11, p12) < 0);
    assertTrue(cmp.compare(p12, p22) < 0);
    assertTrue(cmp.compare(p12, p21) > 0);
    assertTrue(cmp.compare(p21, p11) > 0);
    assertTrue(cmp.compare(p21, p12) < 0);
}