163 lines
5.4 KiB
Swift
163 lines
5.4 KiB
Swift
//
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// TestDbBuilder.swift
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// ZcashLightClientKitTests
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//
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// Created by Francisco Gindre on 10/14/19.
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// Copyright © 2019 Electric Coin Company. All rights reserved.
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//
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import Foundation
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import SQLite
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@testable import ZcashLightClientKit
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struct TestDbHandle {
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var originalDb: URL
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var readWriteDb: URL
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init(originalDb: URL) {
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self.originalDb = originalDb
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// avoid files clashing because crashing tests failed to remove previous ones by incrementally changing the filename
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self.readWriteDb = FileManager.default.temporaryDirectory
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.appendingPathComponent(
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self.originalDb.lastPathComponent.appending("_\(Date().timeIntervalSince1970)")
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)
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}
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func setUp() throws {
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try FileManager.default.copyItem(at: originalDb, to: readWriteDb)
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}
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func dispose() {
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try? FileManager.default.removeItem(at: readWriteDb)
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}
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func connectionProvider(readwrite: Bool = true) -> ConnectionProvider {
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SimpleConnectionProvider(path: self.readWriteDb.absoluteString, readonly: !readwrite)
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}
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}
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// This requires reference semantics, an enum cannot be used
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enum TestDbBuilder {
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enum TestBuilderError: Error {
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case generalError
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}
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static func pendingTransactionsDbURL() throws -> URL {
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try __documentsDirectory().appendingPathComponent("pending.db")
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}
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static func prePopulatedDataDbURL() -> URL? {
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Bundle.module.url(forResource: "test_data", withExtension: "db")
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}
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static func prePopulatedMainnetDataDbURL() -> URL? {
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Bundle.module.url(forResource: "darkside_data", withExtension: "db")
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}
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static func prePopulatedDarksideCacheDb() -> URL? {
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Bundle.module.url(forResource: "darkside_caches", withExtension: "db")
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}
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static func prepopulatedDataDbProvider(rustBackend: ZcashRustBackendWelding) async throws -> ConnectionProvider? {
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guard let url = prePopulatedMainnetDataDbURL() else { return nil }
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let provider = SimpleConnectionProvider(path: url.absoluteString, readonly: true)
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let initResult = try await rustBackend.initDataDb(seed: Environment.seedBytes)
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switch initResult {
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case .success: return provider
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case .seedRequired:
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throw DatabaseStorageError.migrationFailedWithMessage(message: "Seed value required to initialize the wallet database")
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}
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}
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static func transactionRepository(rustBackend: ZcashRustBackendWelding) async throws -> TransactionRepository? {
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guard let provider = try await prepopulatedDataDbProvider(rustBackend: rustBackend) else { return nil }
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return TransactionSQLDAO(dbProvider: provider)
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}
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static func sentNotesRepository(rustBackend: ZcashRustBackendWelding) async throws -> SentNotesRepository? {
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guard let provider = try await prepopulatedDataDbProvider(rustBackend: rustBackend) else { return nil }
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return SentNotesSQLDAO(dbProvider: provider)
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}
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static func receivedNotesRepository(rustBackend: ZcashRustBackendWelding) async throws -> ReceivedNoteRepository? {
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guard let provider = try await prepopulatedDataDbProvider(rustBackend: rustBackend) else { return nil }
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return ReceivedNotesSQLDAO(dbProvider: provider)
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}
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static func seed(db: CompactBlockRepository, with blockRange: CompactBlockRange) async throws {
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guard let blocks = StubBlockCreator.createBlockRange(blockRange) else {
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throw TestBuilderError.generalError
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}
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try await db.write(blocks: blocks)
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}
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}
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class InMemoryDbProvider: ConnectionProvider {
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var readonly: Bool
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var conn: Connection?
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init(readonly: Bool = false) throws {
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self.readonly = readonly
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}
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func connection() throws -> Connection {
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guard let conn else {
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let newConnection = try Connection(.inMemory, readonly: readonly)
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self.conn = newConnection
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return newConnection
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}
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return conn
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}
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func close() {
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self.conn = nil
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}
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}
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enum StubBlockCreator {
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static func createRandomBlockMeta() -> ZcashCompactBlock.Meta {
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ZcashCompactBlock.Meta(
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hash: randomData(ofLength: 32)!,
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time: UInt32(Date().timeIntervalSince1970),
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saplingOutputs: UInt32.random(in: 0 ... 32),
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orchardOutputs: UInt32.random(in: 0 ... 32)
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)
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}
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static func createRandomDataBlock(with height: BlockHeight) -> ZcashCompactBlock? {
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guard let data = randomData(ofLength: 100) else {
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LoggerProxy.debug("error creating stub block")
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return nil
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}
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return ZcashCompactBlock(height: height, data: data, meta: createRandomBlockMeta())
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}
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static func createBlockRange(_ range: CompactBlockRange) -> [ZcashCompactBlock]? {
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var blocks: [ZcashCompactBlock] = []
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for height in range {
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guard let block = createRandomDataBlock(with: height) else {
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return nil
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}
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blocks.append(block)
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}
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return blocks
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}
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static func randomData(ofLength length: Int) -> Data? {
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var bytes = [UInt8](repeating: 0, count: length)
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let status = SecRandomCopyBytes(kSecRandomDefault, length, &bytes)
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if status == errSecSuccess {
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return Data(bytes: &bytes, count: bytes.count)
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}
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LoggerProxy.debug("Status \(status)")
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return nil
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}
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}
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