Coverage Summary for Class: BackupExporter (com.georgeci.moneysurfer.domain.backup)

 package com.georgeci.moneysurfer.domain.backup
 
 import okio.BufferedSink
 import okio.BufferedSource
 
 interface BackupExporter {
     /**
      * Streams a complete backup ZIP into [sink].
      *
      * With a non-blank [passphrase] the data entries are sealed inside an
      * encrypted `payload.enc` entry ([BackupEncryptionInfo.SCHEME_V1]); the
      * container is still a plain ZIP with a readable manifest. With a null or
      * blank passphrase the archive is fully unencrypted.
      *
      * Caller owns [sink] lifecycle and must close it after this returns.
      * The function flushes but does not close. Suspends on a background
      * dispatcher; safe to invoke from the main thread.
      */
     suspend fun exportTo(sink: BufferedSink, passphrase: String? = null): Result<BackupManifest>
 }
 
 interface BackupImporter {
     /**
      * Peeks at [source] without consuming it and reports whether the backup
      * is passphrase-protected (so the UI can prompt before [importFrom]).
      * Returns `false` for unreadable input — [importFrom] surfaces the real
      * error in that case.
      */
     suspend fun isPassphraseProtected(source: BufferedSource): Boolean
 
     /**
      * Reads a backup ZIP from [source] and replaces the current local data.
      * Encrypted backups require the matching [passphrase]
      * ([BackupError.PassphraseRequired] / [BackupError.WrongPassphrase]).
      *
      * On success the caller must immediately trigger an app restart via
      * [AppRestarter] — the in-memory Koin singletons still reference closed
      * Room handles. Caller owns [source] and must close it.
      */
     suspend fun importFrom(source: BufferedSource, passphrase: String? = null): Result<BackupManifest>
 }