2 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Michal Fousek
|
2bbc5800bd |
[#888] Make actor from ZcashRustBackendWelding
Closes #888. - `ZcashRustBackend` is actor now. So majority of methods in this actor are now async. - Some methods stayed `static` in `ZcashRustBackend`. It would be hard to pass instance of the `ZcashRustBackend` to the places where these methods are used in static manner. And it would change lot of APIs. But it isn't problem from technical perspective because these methods would be `nonisolated` otherwise. - Methods `lastError()` and `getLastError()` in `ZcashRustBackend` are now private. This makes sure that ther won't be aby race condition between other methods and these two error methods. - All the methods for which was `lastError()` used in code now throw error. So `lastError()` is no longer needed outside of the `ZcashRustBackend`. - There are in the public API related to `DerivationTool`. - `DerivationTool` now requires instance of the `ZcashRustBackend`. And `ZcashRustBackend` isn't public type. So `DerivationTool` doesn't have any public constructor now. It can be created only via `Initializer.makeDerivationTool()` instance method. - `deriveUnifiedSpendingKey()` and `deriveUnifiedFullViewingKey()` in `DerivationTool` are now async. It is because these are using `ZcashRustBackend` inside. `DerivationTool` offers alternative (closure and combine) APIs. But downside is that there is no sync API to dervie spending key or viewing key. - Some methods of the `DerivationTool` are now static. These methods don't use anything that requires instance of the `DerivationTool` inside. [#888] Use Sourcery to generate mocks - I wrote mock for `Synchronizer` manually. And it's tedious and long and boring work. - Now `ZcashRustBackendWelding` is changed a lot so it means `MockRustBackend` must be changed a lot. So I decided to introduce `sourcery` to generate mocks from protocols so we don't have to do it manually ever. - To generate mocks go to `ZcashLightClientKit/Tests/TestUtils/Sourcery` directory and run `generateMocks.sh` script. - Your protocol must be mentioned in `AutoMockable.swift` file. Generated mocks are in `AutoMockable.generated.swift` file. [#888] Fix Offline tests - Offline tests target now runs and tests are green. - There is log of changes in tests. But logic is not changed. - Updated `AutoMockable.stencil` so sourcery is able to generate mock as actor when protocol is marked with: `// sourcery: mockActor`. - Last few updates in `ZcashRustBackendWelding`. In previous PR `rewindCacheToHeight` methods was overlooked and it didn't throw error. - Removed `MockRustBackend` and using generated `ZCashRustBackendWeldingMock` instead. - Using generated `SynchronizerMock`. [#888] Fix NetworkTests - Changed a bit how rust backend mock is used in the tests. Introduced `RustBackendMockHelper`. There are some state variables that must be preserved within one instance of the mock. This helper does exactly this. It keeps this state variables in the memory and helping mock to work as expected. [#888] Fix Darkside tests Create ZcashKeyDeriving internal protocol Use New DerivationTool that does not require RustBackend Remove duplicated methods that had been copied over [#888] Fix potentially broken tests I broke the tests because I moved `testTempDirectory` from each `TestCase` to the `Environment`. By this I caused that each tests uses exactly same URL. Which is directly against purpose of `testTempDirectory`. So now each test calls this one and store it to local variable. So each test has unique URL. [#888] Add ability to mock nonisolated methods to AutoMockable.stencil [#888] Add changelog and fix the documentation in ZcashRustBackendWelding [#888] Rename derivation rust backend protocol and remove static methods - Renamed `ZcashKeyDeriving` to `ZcashKeyDerivationBackendWelding`. So the naming scheme is same as for `ZcashRustBackendWelding`. - `ZcashKeyDerivationBackend` is now struct instead of enum. - Methods in `ZcashKeyDerivationBackendWelding` (except one) are no longer static. Because of this the respective methods in `DerivationTool` aren't also static anymore. |
|
Francisco Gindre
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6b7fbdd908
|
[#895] Add Sync Session ID Synchronizer State (#906)
Closes #895 Add Sync Session ID to `SynchronizerState`. A SyncSession is an attempt to sync the blockchain within the lifetime of a Synchronizer. A Synchronizer can sync many times, when synced it will refresh every ~20 seconds +- random padding. each sync attempt will have a different UUID even if it's from the same instance of SDKSynchronizer. **How are SyncSessions are delimited? With `SyncStatus` changes.** changes from [`.unprepared`|`.error`|`.disconnected`|`.stopped`] to `.syncing` assign a new sessionID to the synchronizer. Any other transitions won't. `areTwoStatusesDifferent ` was refactored to a helper function of `SyncStatus` **How are IDs generated?** ID generation is not mandated but delegated to a protocol `SyncSessionIDGenerator`. Tests inject their own deterministic generator to avoid test flakiness. Default implementation of SyncSessionIDGenerator is ````Swift struct UniqueSyncSessionIDGenerator {} extension UniqueSyncSessionIDGenerator: SyncSessionIDGenerator { func nextID() -> UUID { UUID() } } ```` **SyncSession Pseudo-Atomicity and thread safety** SyncSession is a type alias of a GenericActor holding a UUID ```` typealias SyncSession = GenericActor<UUID> extension SyncSession { /// updates the current sync session to a new value with the given generator /// - Parameters generator: a `SyncSessionIDGenerator` /// - returns: the `UUID` of the newly updated value. @discardableResult func newSession(with generator: SyncSessionIDGenerator) async -> UUID { return await self.update(generator.nextID()) } } ```` Closes #895 SessionTicker struct to control session transitions. switching to `.unprepared` now makes syncID to be `.nullID` |