final StringBuffer sb = new StringBuffer();
        sb.append(isAllow() ? "Allow " : "Deny  ");
        appendCol(sb, this.sid.toDisplayString(), 25);
        sb.append(" 0x").append(Hexdump.toHexString(this.access, 8)).append(' ');
        sb.append(isInherited() ? "Inherited " : "Direct    ");
        appendCol(sb, getApplyToText(), 34);
        return sb.toString();
    }

    }

    @Test
    @DisplayName("Test appendCol helper method")
    void testAppendCol() {
        StringBuffer sb = new StringBuffer();

        // Test with short string
        ace.appendCol(sb, "test", 10);
        assertEquals("test      ", sb.toString());

        // Test with exact width string
        sb = new StringBuffer();
        ace.appendCol(sb, "exact", 5);

        final StringBuffer sb = new StringBuffer();
        sb.append(isAllow() ? "Allow " : "Deny  ");
        appendCol(sb, sid.toDisplayString(), 25);
        sb.append(" 0x").append(Hexdump.toHexString(access, 8)).append(' ');
        sb.append(isInherited() ? "Inherited " : "Direct    ");
        appendCol(sb, getApplyToText(), 34);
        return sb.toString();
    }

	if z.InMemory == nil {
		o = msgp.AppendNil(o)
	} else {
		o = msgp.AppendBool(o, *z.InMemory)
	}
	// string "Compress"
	o = append(o, 0xa8, 0x43, 0x6f, 0x6d, 0x70, 0x72, 0x65, 0x73, 0x73)
	if z.Compress == nil {
		o = msgp.AppendNil(o)
	} else {
		o = msgp.AppendBool(o, *z.Compress)
	}
	// string "SmallerThan"
	o = append(o, 0xab, 0x53, 0x6d, 0x61, 0x6c, 0x6c, 0x65, 0x72, 0x54, 0x68, 0x61, 0x6e)

	if z.Replicate == nil {
		o = msgp.AppendNil(o)
	} else {
		o, err = z.Replicate.MarshalMsg(o)
		if err != nil {
			err = msgp.WrapError(err, "Replicate")
			return
		}
	}
	// string "KeyRotate"
	o = append(o, 0xa9, 0x4b, 0x65, 0x79, 0x52, 0x6f, 0x74, 0x61, 0x74, 0x65)
	if z.KeyRotate == nil {
		o = msgp.AppendNil(o)
	} else {
		o, err = z.KeyRotate.MarshalMsg(o)

	// map header, size 9
	// string "Name"
	o = append(o, 0x89, 0xa4, 0x4e, 0x61, 0x6d, 0x65)
	o = msgp.AppendString(o, z.Name)
	// string "Writer"
	o = append(o, 0xa6, 0x57, 0x72, 0x69, 0x74, 0x65, 0x72)
	o = msgp.AppendBool(o, z.Writer)
	// string "UID"
	o = append(o, 0xa3, 0x55, 0x49, 0x44)
	o = msgp.AppendString(o, z.UID)
	// string "Timestamp"
	o = append(o, 0xa9, 0x54, 0x69, 0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70)

	o = msgp.AppendBool(o, z.dependGlobalObjectAPI)
	// string "dependGlobalAuthNPlugin"
	o = append(o, 0xb7, 0x64, 0x65, 0x70, 0x65, 0x6e, 0x64, 0x47, 0x6c, 0x6f, 0x62, 0x61, 0x6c, 0x41, 0x75, 0x74, 0x68, 0x4e, 0x50, 0x6c, 0x75, 0x67, 0x69, 0x6e)
	o = msgp.AppendBool(o, z.dependGlobalAuthNPlugin)
	// string "dependGlobalSiteReplicationSys"

	o = append(o, 0x83, 0xa7, 0x44, 0x65, 0x6c, 0x65, 0x74, 0x65, 0x64)
	o = msgp.AppendBool(o, z.Deleted)
	// string "Cached"
	o = append(o, 0xa6, 0x43, 0x61, 0x63, 0x68, 0x65, 0x64)
	o = msgp.AppendBool(o, z.Cached)
	// string "NoMetadata"
	o = append(o, 0xaa, 0x4e, 0x6f, 0x4d, 0x65, 0x74, 0x61, 0x64, 0x61, 0x74, 0x61)
	o = msgp.AppendBool(o, z.NoMetadata)
	return
}

// UnmarshalMsg implements msgp.Unmarshaler

	o = msgp.AppendBool(o, z.Create)
	// string "IncludeDirectories"
	o = append(o, 0xb2, 0x49, 0x6e, 0x63, 0x6c, 0x75, 0x64, 0x65, 0x44, 0x69, 0x72, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x69, 0x65, 0x73)
	o = msgp.AppendBool(o, z.IncludeDirectories)
	// string "Transient"
	o = append(o, 0xa9, 0x54, 0x72, 0x61, 0x6e, 0x73, 0x69, 0x65, 0x6e, 0x74)
	o = msgp.AppendBool(o, z.Transient)
	// string "Versioned"

	}
}

// TestChecksumSerializeDeserialize checks AppendTo can be reversed by ChecksumFromBytes
func TestChecksumSerializeDeserialize(t *testing.T) {
	myData := []byte("this-is-a-checksum-data-test")
	chksm := NewChecksumFromData(ChecksumCRC32, myData)
	if chksm == nil {
		t.Fatal("NewChecksumFromData returned nil")
	}
	// Serialize the checksum to bytes
	b := chksm.AppendTo(nil, nil)
	if b == nil {