/** get returns the last value set */
public void testGetSet() {
AtomicLong ai = new AtomicLong(1);
assertEquals(1, ai.get());
ai.set(2);
assertEquals(2, ai.get());
ai.set(-3);
assertEquals(-3, ai.get());
}
/** doubleValue returns current value. */
public void testDoubleValue() {
AtomicLong ai = new AtomicLong();
for (int i = -12; i < 6; ++i) {
ai.set(i);
assertEquals((double) i, ai.doubleValue(), 0.0);
}
}
/** floatValue returns current value. */
public void testFloatValue() {
AtomicLong ai = new AtomicLong();
for (int i = -12; i < 6; ++i) {
ai.set(i);
assertEquals((float) i, ai.floatValue(), 0.0f);
}
}
/** longValue returns current value. */
public void testLongValue() {
AtomicLong ai = new AtomicLong();
for (int i = -12; i < 6; ++i) {
ai.set(i);
assertEquals((long) i, ai.longValue());
}
}
/** toString returns current value. */
public void testToString() {
AtomicLong ai = new AtomicLong();
for (long i = -12; i < 6; ++i) {
ai.set(i);
assertEquals(ai.toString(), Long.toString(i));
}
}
/** incrementAndGet increments and returns current value */
public void testIncrementAndGet() {
AtomicLong ai = new AtomicLong(1);
assertEquals(2, ai.incrementAndGet());
assertEquals(2, ai.get());
ai.set(-2);
assertEquals(-1, ai.incrementAndGet());
assertEquals(0, ai.incrementAndGet());
assertEquals(1, ai.incrementAndGet());
assertEquals(1, ai.get());
}
/** a deserialized serialized atomic holds same value */
public void testSerialization() {
AtomicLong l = new AtomicLong();
try {
l.set(-22);
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
out.writeObject(l);
out.close();
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
AtomicLong r = (AtomicLong) in.readObject();
assertEquals(l.get(), r.get());
} catch (Exception e) {
unexpectedException();
}
}