assertNotNull(avFlags, "AvFlags object should not be null");
        assertEquals(0x04030201, avFlags.getFlags(), "Flags should match the raw bytes (little-endian)");

        // Test with zero
        byte[] zeroBytes = new byte[] { 0x00, 0x00, 0x00, 0x00 };
        AvFlags zeroAvFlags = new AvFlags(zeroBytes);
        assertNotNull(zeroAvFlags, "AvFlags object should not be null for zero bytes");

        }

        @Test
        @DisplayName("Should align size to 8-byte boundary")
        void testSizeAlignment() {
            int size = request.size();
            assertEquals(0, size % 8, "Size should be aligned to 8-byte boundary");
        }

        @ParameterizedTest
        @DisplayName("Should calculate size for various lock counts")

        String queryString = result.toString();
        assertTrue("Should contain tag1", queryString.contains("tag1"));
        assertTrue("Should contain tag2", queryString.contains("tag2"));
        assertTrue("Should contain tag3", queryString.contains("tag3"));
        // Should be minimum_should_match = 1 (OR logic)
        assertTrue("Should use should clauses", queryString.contains("should"));
    }

    @Test

            assertNotNull("Resource should exist", is);
            contentNew = new String(is.readAllBytes(), StandardCharsets.UTF_8);
        }

        // Verify content is valid JSON
        assertTrue("Content should start with {", contentNew.trim().startsWith("{"));
        assertTrue("Content should end with }", contentNew.trim().endsWith("}"));
        assertTrue("Content should be substantial", contentNew.length() > 100);

		t.Errorf("name should be groupby, but got %v, total should be 60, but got %v", name, total)
	}

	if err := DB.Model(&User{}).Select("name, sum(age) as total").Where("name LIKE ?", "groupby%").Group("name").Having("name = ?", "groupby1").Row().Scan(&name, &total); err != nil {
		t.Errorf("no error should happen, but got %v", err)
	}

	if name != "groupby1" || total != 660 {

        assertNotNull(password, "Password char array should not be null");
        assertArrayEquals(testPassword.toCharArray(), password, "Password should match");

        // Verify it returns a clone, not the original
        password[0] = 'X';
        char[] password2 = authenticator.getPasswordAsCharArray();
        assertNotEquals(password[0], password2[0], "Should return a clone, not the original");
    }

    @Test

/**
 * Test class for StringUtil utility methods
 */
class StringUtilTest {

    @Test
    @DisplayName("Should join single element without delimiter")
    void testJoinSingleElement() {
        String result = StringUtil.join(",", "hello");
        assertEquals("hello", result);
    }

    @Test
    @DisplayName("Should join two elements with delimiter")
    void testJoinTwoElements() {

        assertEquals(message, ex.getMessage(), "Message should be preserved as provided");
        assertNull(ex.getCause(), "Cause should be null when only message is provided");

        // toString should include the class name and (if non-null) the message
        String ts = ex.toString();
        assertTrue(ts.contains("SMBProtocolDecodingException"), "toString should include class name");
        if (message != null && !message.isEmpty()) {

        assertEquals(mid, request.getMid(), "MID should be set correctly");
        assertEquals(asyncId, request.getAsyncId(), "AsyncId should be set correctly");
        assertEquals(credits, request.getCredit(), "Credits should be set correctly");
        assertEquals(treeId, request.getTreeId(), "Tree ID should be set correctly");
        assertTrue((request.getFlags() & SMB2_FLAGS_ASYNC_COMMAND) != 0, "Async flag should be set for non-zero asyncId");
    }

        }

        @Test
        @DisplayName("Should initialize with SMB2_WRITE command")
        void testCommandInitialization() {
            Smb2WriteRequest writeRequest = new Smb2WriteRequest(mockConfig, testFileId);
            // Command is set in parent constructor
            assertNotNull(writeRequest);
        }

        @Test
        @DisplayName("Should accept null file ID in constructor")