assertEquals(0L, map.get(key));
    assertTrue(map.containsKey(key));

    assertEquals(0L, map.putIfAbsent(key, value));
    assertEquals(value, map.get(key));
  }

  public void testReplace() {
    AtomicLongMap<String> map = AtomicLongMap.create();
    String key = "key";
    long newValue = random.nextInt(MAX_ADDEND);
    for (int i = 0; i < ITERATIONS; i++) {
      long before = map.get(key);

import java.lang.reflect.Method;

import org.junit.Test;

/**
 * @author higa
 *
 */
public class StringUtilTest {

    /**
     * @throws Exception
     */
    @Test
    public void testReplace() throws Exception {
        assertEquals("1", "1bc45", StringUtil.replace("12345", "23", "bc"));
        assertEquals("2", "1234ef", StringUtil.replace("12345", "5", "ef"));