testCompareAddresses() — netty Function Reference

Architecture documentation for the testCompareAddresses() function in MacAddressUtilTest.java from the netty codebase.

Function java Buffer Telemetry

Entity Profile

Buffer→ Telemetry→ testCompareAddresses() — netty Function Reference

Dependency Diagram

graph TD
  47f7c295_60c7_1a2f_e33b_86f34898092e["testCompareAddresses()"]
  1b384915_b7eb_7a58_649b_38b1444221ff["MacAddressUtilTest"]
  47f7c295_60c7_1a2f_e33b_86f34898092e -->|defined in| 1b384915_b7eb_7a58_649b_38b1444221ff
  style 47f7c295_60c7_1a2f_e33b_86f34898092e fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

common/src/test/java/io/netty/util/internal/MacAddressUtilTest.java lines 28–71

    @Test
    public void testCompareAddresses() {
        // should not prefer empty address when candidate is not globally unique
        assertEquals(
                0,
                MacAddressUtil.compareAddresses(
                        EMPTY_BYTES,
                        new byte[]{(byte) 0x52, (byte) 0x54, (byte) 0x00, (byte) 0xf9, (byte) 0x32, (byte) 0xbd}));

        // only candidate is globally unique
        assertEquals(
                -1,
                MacAddressUtil.compareAddresses(
                        EMPTY_BYTES,
                        new byte[]{(byte) 0x50, (byte) 0x54, (byte) 0x00, (byte) 0xf9, (byte) 0x32, (byte) 0xbd}));

        // only candidate is globally unique
        assertEquals(
                -1,
                MacAddressUtil.compareAddresses(
                        new byte[]{(byte) 0x52, (byte) 0x54, (byte) 0x00, (byte) 0xf9, (byte) 0x32, (byte) 0xbd},
                        new byte[]{(byte) 0x50, (byte) 0x54, (byte) 0x00, (byte) 0xf9, (byte) 0x32, (byte) 0xbd}));

        // only current is globally unique
        assertEquals(
                1,
                MacAddressUtil.compareAddresses(
                        new byte[]{(byte) 0x52, (byte) 0x54, (byte) 0x00, (byte) 0xf9, (byte) 0x32, (byte) 0xbd},
                        EMPTY_BYTES));

        // only current is globally unique
        assertEquals(
                1,
                MacAddressUtil.compareAddresses(
                        new byte[]{(byte) 0x50, (byte) 0x54, (byte) 0x00, (byte) 0xf9, (byte) 0x32, (byte) 0xbd},
                        new byte[]{(byte) 0x52, (byte) 0x54, (byte) 0x00, (byte) 0xf9, (byte) 0x32, (byte) 0xbd}));

        // both are globally unique
        assertEquals(
                0,
                MacAddressUtil.compareAddresses(
                        new byte[]{(byte) 0x50, (byte) 0x54, (byte) 0x00, (byte) 0xf9, (byte) 0x32, (byte) 0xbd},
                        new byte[]{(byte) 0x50, (byte) 0x55, (byte) 0x01, (byte) 0xfa, (byte) 0x33, (byte) 0xbe}));
    }