// preceded and followed by a faulting page.
func dangerousSlice(t *testing.T) []byte {
	pagesize := syscall.Getpagesize()
	b, err := syscall.Mmap(0, 0, 3*pagesize, syscall.PROT_READ|syscall.PROT_WRITE, syscall.MAP_ANONYMOUS|syscall.MAP_PRIVATE)
	if err != nil {
		t.Fatalf("mmap failed %s", err)
	}
	err = syscall.Mprotect(b[:pagesize], syscall.PROT_NONE)
	if err != nil {
		t.Fatalf("mprotect low failed %s\n", err)
	}

Shinsuke Sugaya <******@****.***> 1755149504 +0900

Shinsuke Sugaya <******@****.***> 1553287182 +0900

        map.putAll(m);
        assertThat(map.get("THREE"), is("3"));
        assertThat(map.get("FOUR"), is("4"));
        assertThat(map.size(), is(4));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testPerformance() throws Exception {
        for (int j = 0; j < 3; ++j) {
            final int num = 100000;
            final Map<String, String> hmap = new HashMap<String, String>();

    }

    @Test
    public void testGetFloat_withFloatValue() {
        Map<String, Object> map = new HashMap<>();
        map.put("float", 1.5f);
        map.put("double", 2.5d);
        map.put("int", 3);
        map.put("string", "4.5");

        assertEquals(1.5f, MapValueExtractor.getFloat(map, "float"), 0.001f);
        assertEquals(2.5f, MapValueExtractor.getFloat(map, "double"), 0.001f);

    assertThat(map.putInstance(Integer.class, 1)).isNull();
    assertEquals(2, map.size());

    assertEquals(0, (int) map.getInstance(int.class));
    assertEquals(1, (int) map.getInstance(Integer.class));

    assertEquals(0, (int) map.putInstance(int.class, null));
    assertEquals(1, (int) map.putInstance(Integer.class, null));

    assertThat(map.getInstance(int.class)).isNull();

 *
 * Map<String, Integer> map = map("a", 1).$("b", 2).$("c", 3).$();
 * </pre>
 *
 * @author koichik
 * @param <K> the key type of the {@literal Map}
 * @param <V> the value type of the {@literal Map}
 */
public class Maps<K, V> {

    /** The target <code>Map</code> to be created. */
    protected Map<K, V> map;

    /**

        final Map<String, Object> map = new HashMap<String, Object>();

        assertTrue(0.0f == docBoostMatcher.getValue(map));

        map.put("data1", 20);
        assertTrue(docBoostMatcher.match(map));

        map.put("data1", 5);
        assertFalse(docBoostMatcher.match(map));

        map.remove("data1");
        assertFalse(docBoostMatcher.match(map));

        map.put("data2", 5);

    Map<Integer, String> map = CompactLinkedHashMap.create();
    map.put(1, "a");
    map.put(4, "b");
    map.put(3, "d");
    map.put(2, "c");
    map.remove(4);
    testHasMapEntriesInOrder(map, 1, "a", 3, "d", 2, "c");
  }

  public void testInsertionOrderAfterRemoveLastEntry() {
    Map<Integer, String> map = CompactLinkedHashMap.create();
    map.put(1, "a");
    map.put(4, "b");

  }

  public void testTransformSingletonMapEquality() {
    Map<String, String> map =
        transformValues(ImmutableMap.of("a", 1), Functions.toStringFunction());
    Map<String, String> expected = ImmutableMap.of("a", "1");
    assertMapsEqual(expected, map);
    assertThat(map.get("a")).isEqualTo(expected.get("a"));
  }

  public void testTransformIdentityFunctionEquality() {