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Reset latest snapshot to avoid it getting stale

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When switching to new storage that doesn't yet have any snapshots, we would otherwise keep the old latest snapshot around.
This commit is contained in:
Torsten Grote 2024-10-01 16:49:00 -03:00
parent 7696b88a5a
commit 11270ff694
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2 changed files with 8 additions and 0 deletions
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3
app/src/main/java/com/stevesoltys/seedvault/repo/SnapshotManager.kt
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@ -47,6 +47,9 @@ internal class SnapshotManager(
* currently available on the backend.
*/
suspend fun onSnapshotsLoaded(handles: List<AppBackupFileType.Snapshot>): List<Snapshot> {
// first reset latest snapshot, otherwise we'd hang on to a stale one
// e.g. when switching to new storage without any snapshots
latestSnapshot = null
return handles.mapNotNull { snapshotHandle ->
val snapshot = try {
loadSnapshot(snapshotHandle)

5
app/src/test/java/com/stevesoltys/seedvault/repo/SnapshotManagerTest.kt
View file

@ -23,6 +23,7 @@ import org.calyxos.seedvault.core.toHexString
import org.junit.jupiter.api.Assertions.assertArrayEquals
import org.junit.jupiter.api.Assertions.assertEquals
import org.junit.jupiter.api.Assertions.assertFalse
import org.junit.jupiter.api.Assertions.assertNull
import org.junit.jupiter.api.Assertions.assertTrue
import org.junit.jupiter.api.Test
import org.junit.jupiter.api.io.TempDir
@ -75,6 +76,10 @@ internal class SnapshotManagerTest : TransportTest() {
// snapshot with largest token is latest
assertEquals(20, snapshotManager.latestSnapshot?.token)
// when switching storage and now not having any snapshots, we must clear latestSnapshot
snapshotManager.onSnapshotsLoaded(emptyList())
assertNull(snapshotManager.latestSnapshot)
}
@Test