IosDriverFactory.kt

override fun shouldPrepopulateDatabase(databaseName: String): Boolean =
    !databaseExists(databaseName)

private fun databaseExists(databaseName: String): Boolean {
    val fileManager = NSFileManager.defaultManager
    val documentDirectory = NSFileManager.defaultManager.URLsForDirectory(
        NSLibraryDirectory,
        NSUserDomainMask,
    ).last() as NSURL
    val file = documentDirectory
        .URLByAppendingPathComponent("$DATABASE_PATH$databaseName")?.path
    return fileManager.fileExistsAtPath(file ?: "")
}

private const val DATABASE_PATH = "Application Support/databases/"