/** get(null) of nonempty map throws NPE */
public void testGet_NullPointerException() {
try {
ConcurrentNavigableMap c = map5();
c.get(null);
shouldThrow();
} catch (NullPointerException success) {
}
}
/** remove(key,value) removes only if pair present */
public void testDescendingRemove2() {
ConcurrentNavigableMap map = dmap5();
assertTrue(map.containsKey(m5));
assertEquals("E", map.get(m5));
map.remove(m5, "E");
assertEquals(4, map.size());
assertFalse(map.containsKey(m5));
map.remove(m4, "A");
assertEquals(4, map.size());
assertTrue(map.containsKey(m4));
}
/** remove(key,value) removes only if pair present */
public void testRemove2() {
ConcurrentNavigableMap map = map5();
assertTrue(map.containsKey(five));
assertEquals("E", map.get(five));
map.remove(five, "E");
assertEquals(4, map.size());
assertFalse(map.containsKey(five));
map.remove(four, "A");
assertEquals(4, map.size());
assertTrue(map.containsKey(four));
}
/** get returns the correct element at the given key, or null if not present */
public void testGet() {
ConcurrentNavigableMap map = map5();
assertEquals("A", (String) map.get(one));
ConcurrentNavigableMap empty = map0();
assertNull(empty.get(one));
}
/** 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));
}
/** get returns the correct element at the given key, or null if not present */
public void testDescendingGet() {
ConcurrentNavigableMap map = dmap5();
assertEquals("A", (String) map.get(m1));
ConcurrentNavigableMap empty = dmap0();
assertNull(empty.get(m1));
}
/** 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));
}