/** replace(null, x, y) throws NPE */
public void testReplaceValue_NullPointerException() {
try {
ConcurrentNavigableMap c = map5();
c.replace(null, one, "whatever");
shouldThrow();
} catch (NullPointerException success) {
}
}
/** replace(null, x) throws NPE */
public void testDescendingReplace_NullPointerException() {
try {
ConcurrentNavigableMap c = dmap5();
c.replace(null, "whatever");
shouldThrow();
} catch (NullPointerException success) {
}
}
/** replace value succeeds when the given key mapped to expected value */
public void testDescendingReplaceValue2() {
ConcurrentNavigableMap map = dmap5();
assertEquals("A", map.get(m1));
assertTrue(map.replace(m1, "A", "Z"));
assertEquals("Z", map.get(m1));
}
/** replace fails when the given key is not present */
public void testDescendingReplace() {
ConcurrentNavigableMap map = dmap5();
assertNull(map.replace(six, "Z"));
assertFalse(map.containsKey(six));
}
/** replace value succeeds when the given key mapped to expected value */
public void testReplaceValue2() {
ConcurrentNavigableMap map = map5();
assertEquals("A", map.get(one));
assertTrue(map.replace(one, "A", "Z"));
assertEquals("Z", map.get(one));
}
/** replace succeeds if the key is already present */
public void testReplace2() {
ConcurrentNavigableMap map = map5();
assertNotNull(map.replace(one, "Z"));
assertEquals("Z", map.get(one));
}