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testCopy() — netty Function Reference

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

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Entity Profile

Dependency Diagram

graph TD
  988485e8_fa72_8f2b_dc21_d271dd22a514["testCopy()"]
  6540f2d1_cdad_6705_dd1d_9a24e2e53242["AbstractByteBufTest"]
  988485e8_fa72_8f2b_dc21_d271dd22a514 -->|defined in| 6540f2d1_cdad_6705_dd1d_9a24e2e53242
  style 988485e8_fa72_8f2b_dc21_d271dd22a514 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

buffer/src/test/java/io/netty/buffer/AbstractByteBufTest.java lines 2042–2069

    @Test
    public void testCopy() {
        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 copy = buffer.copy();
        assertEquals(0, copy.readerIndex());
        assertEquals(buffer.readableBytes(), copy.writerIndex());
        assertEquals(buffer.readableBytes(), copy.capacity());
        assertSame(buffer.order(), copy.order());
        for (int i = 0; i < copy.capacity(); i ++) {
            assertEquals(buffer.getByte(i + readerIndex), copy.getByte(i));
        }

        // Make sure the buffer content is independent from each other.
        buffer.setByte(readerIndex, (byte) (buffer.getByte(readerIndex) + 1));
        assertTrue(buffer.getByte(readerIndex) != copy.getByte(0));
        copy.setByte(1, (byte) (copy.getByte(1) + 1));
        assertTrue(buffer.getByte(readerIndex + 1) != copy.getByte(1));
        copy.release();
    }

Domain

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Defined In

Source

Frequently Asked Questions

What does testCopy() do?
testCopy() is a function in the netty codebase, defined in buffer/src/test/java/io/netty/buffer/AbstractByteBufTest.java.
Where is testCopy() defined?
testCopy() is defined in buffer/src/test/java/io/netty/buffer/AbstractByteBufTest.java at line 2042.

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