Provide an artifact for unit tests

[ShreyashKore]

Should the library provide artifacts for easier testing in unit tests? Something like an in-memory store would similar to JdbcSqliteDriver(JdbcSqliteDriver.IN_MEMORY) could be provided. It could have simple implementation like this:

class KStoreInMemoryCodec<T : @Serializable Any>(
    private val json: Json,
    private val serializer: KSerializer<T>
) : Codec<T> {

    private var storedData: String? = null

    override suspend fun decode(): T? =
        storedData?.let {
            try {
                json.decodeFromString(serializer, it)
            } catch (e: SerializationException) {
                null
            }
        }

    override suspend fun encode(value: T?) {
        storedData = value?.let { json.encodeToString(serializer, it) }
    }
}

[ShreyashKore]

If you're interested in adding this feature, I’d love to contribute!

[xxfast]

Hi! Yes that would be a great addition :) Feel free to PR