public void testSanity() {
assertTrue(sizeOf(new String("test string")) > shallowSizeOfInstance(String.class));
Holder holder = new Holder();
holder.holder = new Holder("string2", 5000L);
assertTrue(sizeOf(holder) > shallowSizeOfInstance(Holder.class));
assertTrue(sizeOf(holder) > sizeOf(holder.holder));
assertTrue(shallowSizeOfInstance(HolderSubclass.class) >= shallowSizeOfInstance(Holder.class));
assertTrue(shallowSizeOfInstance(Holder.class) == shallowSizeOfInstance(HolderSubclass2.class));
String[] strings =
new String[] {new String("test string"), new String("hollow"), new String("catchmaster")};
assertTrue(sizeOf(strings) > shallowSizeOf(strings));
}
public void testReferenceSize() {
if (!isSupportedJVM()) {
System.err.println("WARN: Your JVM does not support certain Oracle/Sun extensions.");
System.err.println(" Memory estimates may be inaccurate.");
System.err.println(" Please report this to the Lucene mailing list.");
System.err.println("JVM version: " + RamUsageEstimator.JVM_INFO_STRING);
System.err.println("UnsupportedFeatures:");
for (JvmFeature f : RamUsageEstimator.getUnsupportedFeatures()) {
System.err.print(" - " + f.toString());
if (f == RamUsageEstimator.JvmFeature.OBJECT_ALIGNMENT) {
System.err.print(
"; Please note: 32bit Oracle/Sun VMs don't allow exact OBJECT_ALIGNMENT retrieval, this is a known issue.");
}
System.err.println();
}
}
assertTrue(NUM_BYTES_OBJECT_REF == 4 || NUM_BYTES_OBJECT_REF == 8);
if (!Constants.JRE_IS_64BIT) {
assertEquals("For 32bit JVMs, reference size must always be 4?", 4, NUM_BYTES_OBJECT_REF);
}
}