@Override public String toString() { StringBuilder sb = new StringBuilder(); sb.append(getClass().getName()); sb.append("[pos="); sb.append(position()); sb.append(" lim="); sb.append(limit()); sb.append(" cap="); sb.append(capacity()); sb.append("]"); return sb.toString(); }
@Test public void testCompact() { ByteBuffer bb1 = ByteBuffer.allocate(5); bb1.put("012".getBytes()); bb1.flip(); ByteBuffer bb2 = ByteBuffer.allocate(5); bb2.put("345".getBytes()); bb2.flip(); ByteBuffer bb3 = ByteBuffer.allocate(5); bb3.put("6789".getBytes()); bb3.flip(); IoBuffer ioBuffer = IoBuffer.newInstance(); ioBuffer.add(bb1, bb2).add(bb3); ioBuffer.position(2); ioBuffer.limit(8); ioBuffer.compact(); assertEquals(ioBuffer.capacity(), ioBuffer.limit()); assertEquals(6, ioBuffer.position()); byte seg[] = "234567".getBytes(); for (int i = 0; i < 6; i++) { assertEquals(seg[i], ioBuffer.get(i)); } }
assertEquals(10, ioBuffer.capacity()); assertTrue(ioBuffer.hasRemaining());
/** * Test the addition of 3 heap buffers, one being empty */ @Test public void testAddHeapBuffersOneEmpty() { ByteBuffer bb1 = ByteBuffer.allocate(5); bb1.put("012".getBytes()); bb1.flip(); ByteBuffer bb2 = ByteBuffer.allocate(0); ByteBuffer bb3 = ByteBuffer.allocate(5); bb3.put("3456".getBytes()); bb3.flip(); IoBuffer ioBuffer = IoBuffer.newInstance(); ioBuffer.add(bb1, bb2).add(bb3); assertEquals(0, ioBuffer.position()); assertEquals(7, ioBuffer.limit()); assertEquals(7, ioBuffer.capacity()); for (int i = 0; i < 7; i++) { assertTrue(ioBuffer.hasRemaining()); assertEquals("0123456".charAt(i), ioBuffer.get()); } try { ioBuffer.get(); fail(); } catch (BufferUnderflowException bufe) { assertTrue(true); } }
@Test public void testFloat() { for (ByteOrder bo : new ByteOrder[] { ByteOrder.BIG_ENDIAN, ByteOrder.LITTLE_ENDIAN }) { ByteBuffer bb = (ByteBuffer) ByteBuffer.allocate(5).order(bo).putFloat(-0.68f).rewind(); IoBuffer ioBuffer = IoBuffer.wrap(bb).order(bo); assertEquals(5, ioBuffer.capacity()); ioBuffer.extend(3); ioBuffer.position(4); assertEquals(8, ioBuffer.capacity()); ioBuffer.putFloat(3.14f); ioBuffer.rewind(); assertEquals(-0.68f, ioBuffer.getFloat(), 0.001f); assertEquals(3.14f, ioBuffer.getFloat(), 0.001f); ioBuffer.rewind(); ioBuffer.putFloat(2, -12.34f); assertEquals(-12.34f, ioBuffer.getFloat(2), 0.001f); } }
@Test public void testDouble() { for (ByteOrder bo : new ByteOrder[] { ByteOrder.BIG_ENDIAN, ByteOrder.LITTLE_ENDIAN }) { ByteBuffer bb = (ByteBuffer) ByteBuffer.allocate(9).order(bo).putDouble(Math.PI).rewind(); IoBuffer ioBuffer = IoBuffer.wrap(bb).order(bo); assertEquals(9, ioBuffer.capacity()); ioBuffer.extend(7); ioBuffer.position(8); assertEquals(16, ioBuffer.capacity()); ioBuffer.putDouble(-Math.E); ioBuffer.rewind(); assertEquals(Math.PI, ioBuffer.getDouble(), 1E-10); assertEquals(-Math.E, ioBuffer.getDouble(), 1E-10); ioBuffer.rewind(); ioBuffer.putDouble(4, 12.34); assertEquals(12.34, ioBuffer.getDouble(4), 1E-10); } }
@Test public void testLong() { for (ByteOrder bo : new ByteOrder[] { ByteOrder.BIG_ENDIAN, ByteOrder.LITTLE_ENDIAN }) { ByteBuffer bb = (ByteBuffer) ByteBuffer.allocate(9).order(bo).putLong(123456789012l).rewind(); IoBuffer ioBuffer = IoBuffer.wrap(bb).order(bo); assertEquals(9, ioBuffer.capacity()); ioBuffer.extend(7); ioBuffer.position(8); assertEquals(16, ioBuffer.capacity()); ioBuffer.putLong(-23456789023l); ioBuffer.rewind(); assertEquals(123456789012l, ioBuffer.getLong()); assertEquals(-23456789023l, ioBuffer.getLong()); ioBuffer.rewind(); ioBuffer.putLong(4, 1234567890); assertEquals(1234567890, ioBuffer.getLong(4)); try { ioBuffer.putLong(9, 1); fail("Not enough place on the buffer"); } catch (BufferUnderflowException e) { // Should come here } try { ioBuffer.getLong(9); fail("Not enough place on the buffer"); } catch (BufferUnderflowException e) { // Should come here } } }
@Test public void testShort() { for (ByteOrder bo : new ByteOrder[] { ByteOrder.BIG_ENDIAN, ByteOrder.LITTLE_ENDIAN }) { ByteBuffer bb = (ByteBuffer) ByteBuffer.allocate(3).order(bo).putShort((short) 12345).rewind(); IoBuffer ioBuffer = IoBuffer.wrap(bb).order(bo); assertEquals(3, ioBuffer.capacity()); ioBuffer.extend(1); ioBuffer.position(2); assertEquals(4, ioBuffer.capacity()); ioBuffer.putShort((short) -23456); ioBuffer.rewind(); assertEquals(12345, ioBuffer.getShort()); assertEquals(-23456, ioBuffer.getShort()); ioBuffer.rewind(); ioBuffer.putShort(1, (short) 12345); assertEquals((short) 12345, ioBuffer.getShort(1)); try { ioBuffer.putShort(3, (short) 1); fail("Not enough place on the buffer"); } catch (BufferUnderflowException e) { // Should come here } try { ioBuffer.getShort(3); fail("Not enough place on the buffer"); } catch (BufferUnderflowException e) { // Should come here } } }
@Test public void testInt() { for (ByteOrder bo : new ByteOrder[] { ByteOrder.BIG_ENDIAN, ByteOrder.LITTLE_ENDIAN }) { ByteBuffer bb = (ByteBuffer) ByteBuffer.allocate(5).order(bo).putInt(123456).rewind(); IoBuffer ioBuffer = IoBuffer.wrap(bb).order(bo); assertEquals(5, ioBuffer.capacity()); ioBuffer.extend(3); ioBuffer.position(4); assertEquals(8, ioBuffer.capacity()); ioBuffer.putInt(-23456789); ioBuffer.rewind(); assertEquals(123456, ioBuffer.getInt()); assertEquals(-23456789, ioBuffer.getInt()); ioBuffer.rewind(); ioBuffer.putInt(2, 1234567890); assertEquals(1234567890, ioBuffer.getInt(2)); try { ioBuffer.putInt(5, 1); fail("Not enough place on the buffer"); } catch (BufferUnderflowException e) { // Should come here } try { ioBuffer.getInt(5); fail("Not enough place on the buffer"); } catch (BufferUnderflowException e) { // Should come here } } }
/** * Test the allocation of a new heap IoBuffer with no byte in it */ @Test public void testAllocate0() { IoBuffer ioBuffer = IoBuffer.allocate(0); assertFalse(ioBuffer.isDirect()); assertEquals(0, ioBuffer.capacity()); assertEquals(0, ioBuffer.limit()); assertEquals(0, ioBuffer.position()); assertFalse(ioBuffer.hasRemaining()); }
/** * Test the allocation of a new direct IoBuffer with 1024 bytes */ @Test public void testAllocateDirect1024() { IoBuffer ioBuffer = IoBuffer.allocateDirect(1024); assertTrue(ioBuffer.isDirect()); assertEquals(1024, ioBuffer.capacity()); assertEquals(1024, ioBuffer.limit()); assertEquals(0, ioBuffer.position()); assertTrue(ioBuffer.hasRemaining()); }
/** * Test the allocation of a new direct IoBuffer with no byte in it */ @Test public void testAllocateDirect0() { IoBuffer ioBuffer = IoBuffer.allocateDirect(0); assertTrue(ioBuffer.isDirect()); assertEquals(0, ioBuffer.capacity()); assertEquals(0, ioBuffer.limit()); assertEquals(0, ioBuffer.position()); assertFalse(ioBuffer.hasRemaining()); }
/** * Test the allocation of a new heap IoBuffer with 1024 bytes */ @Test public void testAllocate1024() { IoBuffer ioBuffer = IoBuffer.allocate(1024); assertFalse(ioBuffer.isDirect()); assertEquals(1024, ioBuffer.capacity()); assertEquals(1024, ioBuffer.limit()); assertEquals(0, ioBuffer.position()); assertTrue(ioBuffer.hasRemaining()); }