assertEquals('9', Hexdump.HEX_DIGITS[9]);
        assertEquals('A', Hexdump.HEX_DIGITS[10]);
        assertEquals('F', Hexdump.HEX_DIGITS[15]);
    }

    @Test
    @DisplayName("Should handle edge cases in toHexChars")
    void testToHexCharsEdgeCases() {
        // Test with zero
        char[] dst1 = new char[4];
        java.util.Arrays.fill(dst1, 'X');
        Hexdump.toHexChars(0, dst1, 0, 4);

        assertTrue(ace.isInherited());

        ace.flags = ACE.FLAGS_INHERITED | ACE.FLAGS_INHERIT_ONLY;
        assertTrue(ace.isInherited());
    }

    @Test
    @DisplayName("Test edge cases in getApplyToText")
    void testGetApplyToTextEdgeCases() {
        // Test with only FLAGS_INHERIT_ONLY (should return Invalid)
        ace.flags = ACE.FLAGS_INHERIT_ONLY;

            MockCreateContextResponse mock = new MockCreateContextResponse(name);
            assertArrayEquals(name.getBytes(StandardCharsets.UTF_8), mock.getName());
        }
    }

    @Nested
    @DisplayName("Edge Case Tests")
    class EdgeCaseTests {

        @Test
        @DisplayName("Should handle large buffer decoding")
        void testLargeBufferDecode() throws SMBProtocolDecodingException {

        byte[] copiedFileId = new byte[16];
        System.arraycopy(buffer, 8, copiedFileId, 0, 16);
        assertArrayEquals(newFileId, copiedFileId);
    }

    @Test
    @DisplayName("Test edge case with minimum buffer size")
    void testMinimumBufferSize() {
        byte[] buffer = new byte[24]; // Exact size needed

        int written = request.writeBytesWireFormat(buffer, 0);

            assertEquals(size, mock.size());
            assertEquals(size, mock.encode(new byte[size * 2], 0));
        }
    }

    @Nested
    @DisplayName("Edge Case Tests")
    class EdgeCaseTests {

        @Test
        @DisplayName("Should handle large buffer encoding")
        void testLargeBufferEncode() {
            byte[] largeName = new byte[1024];

  //    visible to done(). This is because there is no happens before edge between the write and a
  //    (hypothetical) unsafe read by our caller. Note: adding 'volatile' does not fix this issue,
  //    it would just add an edge such that if done() observed non-null, then it would also
  //    definitely observe all earlier writes, but we still have no guarantee that done() would see

            String result = notification.toString();
            assertTrue(result.contains("oplockLevel=" + oplockLevel));
        }
    }

    @Nested
    @DisplayName("Edge Case Tests")
    class EdgeCaseTests {

        @Test
        @DisplayName("Should handle minimum valid buffer size")
        void testMinimumBufferSize() throws Exception {

            assertEquals((chunkCount - 1) * 100, SMBUtil.readInt4(buffer, offset + 16));
        }
    }

    @Nested
    @DisplayName("Edge Case Tests")
    class EdgeCaseTests {

        @Test
        @DisplayName("Should handle source key with all zeros")
        void testSourceKeyAllZeros() {
            // Given

        String result = facetQueryView.toString();
        assertNotNull(result);
        assertTrue(result.contains("title=Empty Map Test"));
        assertTrue(result.contains("queryMap={}"));
    }

    // Test edge cases
    public void test_addQuery_withNullValues() {
        facetQueryView.addQuery(null, "query1");
        assertEquals("query1", facetQueryView.getQueryMap().get(null));

            // Then: Should return binding's string representation
            assertEquals("mockBindingString", result);
        }
    }

    @Nested
    @DisplayName("Edge Cases and Error Handling")
    class EdgeCaseTests {

        @Test
        @DisplayName("Should handle null binding toString")
        void testToStringWithNullBinding() {