@Test
public void testFullConsolidation() {
CompositeByteBuf buf = freeLater(compositeBuffer(Integer.MAX_VALUE));
buf.addComponent(wrappedBuffer(new byte[] {1}));
buf.addComponent(wrappedBuffer(new byte[] {2, 3}));
buf.addComponent(wrappedBuffer(new byte[] {4, 5, 6}));
buf.consolidate();
assertEquals(1, buf.numComponents());
assertTrue(buf.hasArray());
assertNotNull(buf.array());
assertEquals(0, buf.arrayOffset());
}
@Test
public void testRangedConsolidation() {
CompositeByteBuf buf = freeLater(compositeBuffer(Integer.MAX_VALUE));
buf.addComponent(wrappedBuffer(new byte[] {1}));
buf.addComponent(wrappedBuffer(new byte[] {2, 3}));
buf.addComponent(wrappedBuffer(new byte[] {4, 5, 6}));
buf.addComponent(wrappedBuffer(new byte[] {7, 8, 9, 10}));
buf.consolidate(1, 2);
assertEquals(3, buf.numComponents());
assertEquals(wrappedBuffer(new byte[] {1}), buf.component(0));
assertEquals(wrappedBuffer(new byte[] {2, 3, 4, 5, 6}), buf.component(1));
assertEquals(wrappedBuffer(new byte[] {7, 8, 9, 10}), buf.component(2));
}
@Test
public void testRemoveLastComponent() {
CompositeByteBuf buf = freeLater(compositeBuffer());
buf.addComponent(wrappedBuffer(new byte[] {1, 2}));
assertEquals(1, buf.numComponents());
buf.removeComponent(0);
assertEquals(0, buf.numComponents());
}
@Test
public void testComponentMustBeSlice() {
CompositeByteBuf buf = freeLater(compositeBuffer());
buf.addComponent(buffer(4).setIndex(1, 3));
assertThat(buf.component(0), is(instanceOf(SlicedByteBuf.class)));
assertThat(buf.component(0).capacity(), is(2));
assertThat(buf.component(0).maxCapacity(), is(2));
}
@Test
public void testAutoConsolidation() {
CompositeByteBuf buf = compositeBuffer(2);
buf.addComponent(wrappedBuffer(new byte[] {1}));
assertEquals(1, buf.numComponents());
buf.addComponent(wrappedBuffer(new byte[] {2, 3}));
assertEquals(2, buf.numComponents());
buf.addComponent(wrappedBuffer(new byte[] {4, 5, 6}));
assertEquals(1, buf.numComponents());
assertTrue(buf.hasArray());
assertNotNull(buf.array());
assertEquals(0, buf.arrayOffset());
}
@Test
public void testNestedLayout() {
CompositeByteBuf buf = freeLater(compositeBuffer());
buf.addComponent(
compositeBuffer()
.addComponent(wrappedBuffer(new byte[] {1, 2}))
.addComponent(wrappedBuffer(new byte[] {3, 4}))
.slice(1, 2));
ByteBuffer[] nioBuffers = buf.nioBuffers(0, 2);
assertThat(nioBuffers.length, is(2));
assertThat(nioBuffers[0].remaining(), is(1));
assertThat(nioBuffers[0].get(), is((byte) 2));
assertThat(nioBuffers[1].remaining(), is(1));
assertThat(nioBuffers[1].get(), is((byte) 3));
}