testDuplicate() — netty Function Reference

Architecture documentation for the testDuplicate() function in AbstractByteBufTest.java from the netty codebase.

Function java Buffer Telemetry

Entity Profile

Buffer→ Telemetry→ testDuplicate() — netty Function Reference

Dependency Diagram

graph TD
  c01041aa_f17c_e29a_e634_6c4764ea71d1["testDuplicate()"]
  6540f2d1_cdad_6705_dd1d_9a24e2e53242["AbstractByteBufTest"]
  c01041aa_f17c_e29a_e634_6c4764ea71d1 -->|defined in| 6540f2d1_cdad_6705_dd1d_9a24e2e53242
  style c01041aa_f17c_e29a_e634_6c4764ea71d1 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

buffer/src/test/java/io/netty/buffer/AbstractByteBufTest.java lines 2071–2093

    @Test
    public void testDuplicate() {
        for (int i = 0; i < buffer.capacity(); i ++) {
            byte value = (byte) random.nextInt();
            buffer.setByte(i, value);
        }

        final int readerIndex = CAPACITY / 3;
        final int writerIndex = CAPACITY * 2 / 3;
        buffer.setIndex(readerIndex, writerIndex);

        // Make sure all properties are copied.
        ByteBuf duplicate = buffer.duplicate();
        assertSame(buffer.order(), duplicate.order());
        assertEquals(buffer.readableBytes(), duplicate.readableBytes());
        assertEquals(0, buffer.compareTo(duplicate));

        // Make sure the buffer content is shared.
        buffer.setByte(readerIndex, (byte) (buffer.getByte(readerIndex) + 1));
        assertEquals(buffer.getByte(readerIndex), duplicate.getByte(duplicate.readerIndex()));
        duplicate.setByte(duplicate.readerIndex(), (byte) (duplicate.getByte(duplicate.readerIndex()) + 1));
        assertEquals(buffer.getByte(readerIndex), duplicate.getByte(duplicate.readerIndex()));
    }