testIndexOf() — netty Function Reference

Architecture documentation for the testIndexOf() function in ByteBufUtilTest.java from the netty codebase.

Function java Buffer Allocators

Entity Profile

Buffer→ Allocators→ testIndexOf() — netty Function Reference

Dependency Diagram

graph TD
  a17f95b5_2261_36b7_1ba7_056cfe20afc0["testIndexOf()"]
  1b32157c_4c5c_4c3c_706b_1a74a9afdca7["ByteBufUtilTest"]
  a17f95b5_2261_36b7_1ba7_056cfe20afc0 -->|defined in| 1b32157c_4c5c_4c3c_706b_1a74a9afdca7
  style a17f95b5_2261_36b7_1ba7_056cfe20afc0 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

buffer/src/test/java/io/netty/buffer/ByteBufUtilTest.java lines 147–180

    @Test
    public void testIndexOf() {
        ByteBuf haystack = Unpooled.copiedBuffer("abc123", CharsetUtil.UTF_8);
        assertEquals(0, ByteBufUtil.indexOf(Unpooled.copiedBuffer("a", CharsetUtil.UTF_8), haystack));
        assertEquals(1, ByteBufUtil.indexOf(Unpooled.copiedBuffer("bc".getBytes(CharsetUtil.UTF_8)), haystack));
        assertEquals(2, ByteBufUtil.indexOf(Unpooled.copiedBuffer("c".getBytes(CharsetUtil.UTF_8)), haystack));
        assertEquals(0, ByteBufUtil.indexOf(Unpooled.copiedBuffer("abc12".getBytes(CharsetUtil.UTF_8)), haystack));
        assertEquals(-1, ByteBufUtil.indexOf(Unpooled.copiedBuffer("abcdef".getBytes(CharsetUtil.UTF_8)), haystack));
        assertEquals(-1, ByteBufUtil.indexOf(Unpooled.copiedBuffer("abc12x".getBytes(CharsetUtil.UTF_8)), haystack));
        assertEquals(-1, ByteBufUtil.indexOf(Unpooled.copiedBuffer("abc123def".getBytes(CharsetUtil.UTF_8)), haystack));

        final ByteBuf needle = Unpooled.copiedBuffer("abc12", CharsetUtil.UTF_8);
        haystack.readerIndex(1);
        needle.readerIndex(1);
        assertEquals(1, ByteBufUtil.indexOf(needle, haystack));
        haystack.readerIndex(2);
        needle.readerIndex(3);
        assertEquals(3, ByteBufUtil.indexOf(needle, haystack));
        haystack.readerIndex(1);
        needle.readerIndex(2);
        assertEquals(2, ByteBufUtil.indexOf(needle, haystack));
        haystack.release();

        haystack = new WrappedByteBuf(Unpooled.copiedBuffer("abc123", CharsetUtil.UTF_8));
        assertEquals(0, ByteBufUtil.indexOf(Unpooled.copiedBuffer("a", CharsetUtil.UTF_8), haystack));
        assertEquals(1, ByteBufUtil.indexOf(Unpooled.copiedBuffer("bc".getBytes(CharsetUtil.UTF_8)), haystack));
        assertEquals(-1, ByteBufUtil.indexOf(Unpooled.copiedBuffer("abcdef".getBytes(CharsetUtil.UTF_8)), haystack));
        haystack.release();

        haystack = Unpooled.copiedBuffer("123aab123", CharsetUtil.UTF_8);
        assertEquals(3, ByteBufUtil.indexOf(Unpooled.copiedBuffer("aab", CharsetUtil.UTF_8), haystack));
        haystack.release();
        needle.release();
    }