@Test
public void testCompact() throws Exception {
DynamicByteBuffer readBuffer = DynamicByteBuffer.allocate(512);
byte[] bytes = new byte[521];
DynamicByteBuffer data = DynamicByteBuffer.wrap(bytes);
readBuffer.putBuffer(data);
readBuffer.limit(data.position());
int numberOfBytesToBeCopiedDuringCompact = readBuffer.remaining();
readBuffer.compact(); // compact the read buffer
Assert.assertEquals(numberOfBytesToBeCopiedDuringCompact, readBuffer.position());
byte[] bytes1 = new byte[10];
DynamicByteBuffer data1 = DynamicByteBuffer.wrap(bytes1);
readBuffer.putBuffer(data1);
readBuffer.limit(data1.position());
numberOfBytesToBeCopiedDuringCompact = readBuffer.remaining();
readBuffer.compact(); // compact the read buffer
Assert.assertEquals(numberOfBytesToBeCopiedDuringCompact, readBuffer.position());
readBuffer.position(10);
numberOfBytesToBeCopiedDuringCompact = readBuffer.remaining();
readBuffer.compact();
Assert.assertEquals(numberOfBytesToBeCopiedDuringCompact, readBuffer.position());
}
@Test
public void testGetAndSetUnsignedInt() throws Exception {
DynamicByteBuffer buf = new DynamicByteBuffer();
long MAX_UNSIGNED_INT = 4294967295L;
buf.putUnsignedInt(MAX_UNSIGNED_INT);
buf.putUnsignedInt(1);
buf.putUnsignedInt(0);
buf.putUnsignedInt(-1);
buf.putUnsignedInt(MAX_UNSIGNED_INT + 1);
assertEquals(buf.position(), 20);
buf.flip();
assertEquals(buf.position(), 0);
assertEquals(buf.limit(), 20);
assertEquals("test 1", MAX_UNSIGNED_INT, buf.getUnsignedInt());
assertEquals("test 2", 1L, buf.getUnsignedInt());
assertEquals("test 3", 0L, buf.getUnsignedInt());
assertEquals("test 4", MAX_UNSIGNED_INT, buf.getUnsignedInt());
assertEquals("test 5", 0L, buf.getUnsignedInt());
assertEquals(buf.position(), 20);
buf.putUnsignedIntAt(0, 121);
buf.putUnsignedIntAt(4, 4000000000L);
assertEquals(121L, buf.getUnsignedIntAt(0));
assertEquals(4000000000L, buf.getUnsignedIntAt(4));
assertEquals(buf.position(), 20);
}
/*
* Short Tests
*/
@Test
public void testGetAndSetShort() throws Exception {
DynamicByteBuffer buf = new DynamicByteBuffer();
buf.putShort((short) 0);
buf.putShort((short) 1);
buf.putShort((short) 32767);
buf.putShort((short) -32768);
buf.flip();
assertEquals(buf.position(), 0);
assertEquals(buf.limit(), 8);
assertEquals((short) 0, buf.getShort());
assertEquals((short) 1, buf.getShort());
assertEquals((short) 32767, buf.getShort());
assertEquals((short) -32768, buf.getShort());
assertEquals(buf.position(), 8);
buf.putShortAt(0, (short) 121);
buf.putShortAt(2, (short) 1000);
assertEquals((short) 121, buf.getShortAt(0));
assertEquals((short) 1000, buf.getShortAt(2));
assertEquals(buf.position(), 8);
}
@Test
public void testGetAndSetUnsigned() throws Exception {
DynamicByteBuffer buf = new DynamicByteBuffer();
buf.putUnsigned(0);
buf.putUnsigned(255);
buf.putUnsigned(256);
buf.putUnsigned(-1);
buf.flip();
assertEquals(buf.position(), 0);
assertEquals(buf.limit(), 4);
assertEquals(0, buf.getUnsigned());
assertEquals(255, buf.getUnsigned());
assertEquals(0, buf.getUnsigned());
assertEquals(255, buf.getUnsigned());
assertEquals(buf.position(), 4);
buf.putUnsignedAt(0, 121);
buf.putUnsignedAt(1, 122);
assertEquals(121, buf.getUnsignedAt(0));
assertEquals(122, buf.getUnsignedAt(1));
assertEquals(buf.position(), 4);
}
@Test
public void testByteBufferAllocate() {
/* Invariant: 0 <= mark <= position <= limit <= capacity */
DynamicByteBuffer buf = DynamicByteBuffer.allocate(0);
// assertEquals(0, buf.mark());
assertEquals(0, buf.position());
assertEquals(0, buf.limit());
assertEquals(0, buf.capacity());
}