396 lines
16 KiB
Swift
396 lines
16 KiB
Swift
//
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// XCTRewindRescanTests.swift
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// ZcashLightClientKit-Unit-Tests
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//
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// Created by Francisco Gindre on 3/25/21.
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//
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import XCTest
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@testable import ZcashLightClientKit
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// swiftlint:disable type_body_length implicitly_unwrapped_optional
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class RewindRescanTests: XCTestCase {
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// TODO: Parameterize this from environment?
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// swiftlint:disable:next line_length
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let seedPhrase = "still champion voice habit trend flight survey between bitter process artefact blind carbon truly provide dizzy crush flush breeze blouse charge solid fish spread"
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// TODO: Parameterize this from environment
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let testRecipientAddress = "zs17mg40levjezevuhdp5pqrd52zere7r7vrjgdwn5sj4xsqtm20euwahv9anxmwr3y3kmwuz8k55a"
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let sendAmount: Int64 = 1000
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let defaultLatestHeight: BlockHeight = 663175
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let branchID = "2bb40e60"
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let chainName = "main"
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var birthday: BlockHeight = 663150
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var coordinator: TestCoordinator!
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var syncedExpectation = XCTestExpectation(description: "synced")
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var sentTransactionExpectation = XCTestExpectation(description: "sent")
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var expectedReorgHeight: BlockHeight = 665188
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var expectedRewindHeight: BlockHeight = 665188
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var reorgExpectation = XCTestExpectation(description: "reorg")
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var network = ZcashNetworkBuilder.network(for: .mainnet)
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override func setUpWithError() throws {
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try super.setUpWithError()
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coordinator = try TestCoordinator(
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seed: seedPhrase,
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walletBirthday: birthday,
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channelProvider: ChannelProvider(),
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network: network
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)
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try coordinator.reset(saplingActivation: 663150, branchID: "e9ff75a6", chainName: "main")
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}
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override func tearDownWithError() throws {
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try super.tearDownWithError()
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NotificationCenter.default.removeObserver(self)
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try coordinator.stop()
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try? FileManager.default.removeItem(at: coordinator.databases.cacheDB)
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try? FileManager.default.removeItem(at: coordinator.databases.dataDB)
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try? FileManager.default.removeItem(at: coordinator.databases.pendingDB)
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}
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func handleError(_ error: Error?) {
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guard let testError = error else {
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XCTFail("failed with nil error")
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return
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}
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XCTFail("Failed with error: \(testError)")
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}
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func testBirthdayRescan() throws {
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// 1 sync and get spendable funds
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try FakeChainBuilder.buildChain(darksideWallet: coordinator.service, branchID: branchID, chainName: chainName)
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try coordinator.applyStaged(blockheight: defaultLatestHeight + 50)
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let initialVerifiedBalance = coordinator.synchronizer.initializer.getVerifiedBalance()
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let initialTotalBalance = coordinator.synchronizer.initializer.getBalance()
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sleep(1)
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let firstSyncExpectation = XCTestExpectation(description: "first sync expectation")
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try coordinator.sync(completion: { _ in
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firstSyncExpectation.fulfill()
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}, error: handleError)
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wait(for: [firstSyncExpectation], timeout: 12)
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let verifiedBalance = coordinator.synchronizer.initializer.getVerifiedBalance()
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let totalBalance = coordinator.synchronizer.initializer.getBalance()
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// 2 check that there are no unconfirmed funds
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XCTAssertTrue(verifiedBalance > network.constants.defaultFee(for: defaultLatestHeight))
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XCTAssertEqual(verifiedBalance, totalBalance)
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// rewind to birthday
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try coordinator.synchronizer.rewind(.birthday)
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// assert that after the new height is
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XCTAssertEqual(try coordinator.synchronizer.initializer.transactionRepository.lastScannedHeight(), self.birthday)
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// check that the balance is cleared
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XCTAssertEqual(initialVerifiedBalance, coordinator.synchronizer.initializer.getVerifiedBalance())
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XCTAssertEqual(initialTotalBalance, coordinator.synchronizer.initializer.getBalance())
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let secondScanExpectation = XCTestExpectation(description: "rescan")
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try coordinator.sync(completion: { _ in
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secondScanExpectation.fulfill()
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}, error: handleError)
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wait(for: [secondScanExpectation], timeout: 12)
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// verify that the balance still adds up
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XCTAssertEqual(verifiedBalance, coordinator.synchronizer.initializer.getVerifiedBalance())
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XCTAssertEqual(totalBalance, coordinator.synchronizer.initializer.getBalance())
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}
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func testRescanToHeight() throws {
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// 1 sync and get spendable funds
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try FakeChainBuilder.buildChainWithTxsFarFromEachOther(
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darksideWallet: coordinator.service,
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branchID: branchID,
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chainName: chainName,
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length: 10000
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)
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let newChaintTip = defaultLatestHeight + 10000
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try coordinator.applyStaged(blockheight: newChaintTip)
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sleep(3)
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let initialVerifiedBalance = coordinator.synchronizer.initializer.getVerifiedBalance()
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let firstSyncExpectation = XCTestExpectation(description: "first sync expectation")
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try coordinator.sync(
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completion: { _ in
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firstSyncExpectation.fulfill()
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},
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error: handleError
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)
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wait(for: [firstSyncExpectation], timeout: 20)
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let verifiedBalance = coordinator.synchronizer.initializer.getVerifiedBalance()
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let totalBalance = coordinator.synchronizer.initializer.getBalance()
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// 2 check that there are no unconfirmed funds
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XCTAssertTrue(verifiedBalance > network.constants.defaultFee(for: defaultLatestHeight))
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XCTAssertEqual(verifiedBalance, totalBalance)
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// rewind to birthday
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let targetHeight: BlockHeight = newChaintTip - 8000
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let rewindHeight = ZcashRustBackend.getNearestRewindHeight(
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dbData: coordinator.databases.dataDB,
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height: Int32(targetHeight),
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networkType: network.networkType
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)
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try coordinator.synchronizer.rewind(.height(blockheight: targetHeight))
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guard rewindHeight > 0 else {
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XCTFail("get nearest height failed error: \(ZcashRustBackend.getLastError() ?? "null")")
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return
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}
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// check that the balance is cleared
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XCTAssertEqual(initialVerifiedBalance, coordinator.synchronizer.initializer.getVerifiedBalance())
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let secondScanExpectation = XCTestExpectation(description: "rescan")
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try coordinator.sync(completion: { _ in
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secondScanExpectation.fulfill()
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}, error: handleError)
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wait(for: [secondScanExpectation], timeout: 20)
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// verify that the balance still adds up
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XCTAssertEqual(verifiedBalance, coordinator.synchronizer.initializer.getVerifiedBalance())
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XCTAssertEqual(totalBalance, coordinator.synchronizer.initializer.getBalance())
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// try to spend the funds
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let sendExpectation = XCTestExpectation(description: "after rewind expectation")
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coordinator.synchronizer.sendToAddress(
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spendingKey: coordinator.spendingKey,
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zatoshi: 1000,
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toAddress: testRecipientAddress,
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memo: nil,
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from: 0
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) { result in
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sendExpectation.fulfill()
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switch result {
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case .success(let pendingTx):
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XCTAssertEqual(1000, pendingTx.value)
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case .failure(let error):
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XCTFail("sending fail: \(error)")
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}
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}
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wait(for: [sendExpectation], timeout: 15)
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}
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func testRescanToTransaction() throws {
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// 1 sync and get spendable funds
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try FakeChainBuilder.buildChain(darksideWallet: coordinator.service, branchID: branchID, chainName: chainName)
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try coordinator.applyStaged(blockheight: defaultLatestHeight + 50)
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sleep(1)
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let firstSyncExpectation = XCTestExpectation(description: "first sync expectation")
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try coordinator.sync(completion: { _ in
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firstSyncExpectation.fulfill()
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}, error: handleError)
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wait(for: [firstSyncExpectation], timeout: 12)
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let verifiedBalance = coordinator.synchronizer.initializer.getVerifiedBalance()
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let totalBalance = coordinator.synchronizer.initializer.getBalance()
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// 2 check that there are no unconfirmed funds
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XCTAssertTrue(verifiedBalance > network.constants.defaultFee(for: defaultLatestHeight))
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XCTAssertEqual(verifiedBalance, totalBalance)
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// rewind to transaction
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guard let transaction = try coordinator.synchronizer.allClearedTransactions().first else {
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XCTFail("failed to get a transaction to rewind to")
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return
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}
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try coordinator.synchronizer.rewind(.transaction(transaction.transactionEntity))
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// assert that after the new height is
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XCTAssertEqual(
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try coordinator.synchronizer.initializer.transactionRepository.lastScannedHeight(),
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transaction.transactionEntity.anchor(network: network)
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)
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let secondScanExpectation = XCTestExpectation(description: "rescan")
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try coordinator.sync(completion: { _ in
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secondScanExpectation.fulfill()
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}, error: handleError)
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wait(for: [secondScanExpectation], timeout: 12)
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// verify that the balance still adds up
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XCTAssertEqual(verifiedBalance, coordinator.synchronizer.initializer.getVerifiedBalance())
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XCTAssertEqual(totalBalance, coordinator.synchronizer.initializer.getBalance())
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}
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func testRewindAfterSendingTransaction() throws {
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let notificationHandler = SDKSynchonizerListener()
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let foundTransactionsExpectation = XCTestExpectation(description: "found transactions expectation")
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let transactionMinedExpectation = XCTestExpectation(description: "transaction mined expectation")
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// 0 subscribe to updated transactions events
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notificationHandler.subscribeToSynchronizer(coordinator.synchronizer)
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// 1 sync and get spendable funds
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try FakeChainBuilder.buildChain(darksideWallet: coordinator.service, branchID: branchID, chainName: chainName)
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try coordinator.applyStaged(blockheight: defaultLatestHeight + 10)
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sleep(1)
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let firstSyncExpectation = XCTestExpectation(description: "first sync expectation")
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try coordinator.sync(completion: { _ in
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firstSyncExpectation.fulfill()
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}, error: handleError)
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wait(for: [firstSyncExpectation], timeout: 12)
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// 2 check that there are no unconfirmed funds
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let verifiedBalance = coordinator.synchronizer.initializer.getVerifiedBalance()
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let totalBalance = coordinator.synchronizer.initializer.getBalance()
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XCTAssertTrue(verifiedBalance > network.constants.defaultFee(for: defaultLatestHeight))
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XCTAssertEqual(verifiedBalance, totalBalance)
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let maxBalance = verifiedBalance - Int64(network.constants.defaultFee(for: defaultLatestHeight))
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// 3 create a transaction for the max amount possible
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// 4 send the transaction
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guard let spendingKey = coordinator.spendingKeys?.first else {
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XCTFail("failed to create spending keys")
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return
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}
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var pendingTx: PendingTransactionEntity?
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coordinator.synchronizer.sendToAddress(
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spendingKey: spendingKey,
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zatoshi: maxBalance,
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toAddress: testRecipientAddress,
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memo: "test send \(self.description) \(Date().description)",
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from: 0
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) { result in
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switch result {
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case .failure(let error):
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XCTFail("sendToAddress failed: \(error)")
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case .success(let transaction):
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pendingTx = transaction
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}
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self.sentTransactionExpectation.fulfill()
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}
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wait(for: [sentTransactionExpectation], timeout: 20)
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guard let pendingTx = pendingTx else {
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XCTFail("transaction creation failed")
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return
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}
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notificationHandler.synchronizerMinedTransaction = { transaction in
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XCTAssertNotNil(transaction.rawTransactionId)
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XCTAssertNotNil(pendingTx.rawTransactionId)
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XCTAssertEqual(transaction.rawTransactionId, pendingTx.rawTransactionId)
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transactionMinedExpectation.fulfill()
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}
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// 5 apply to height
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// 6 mine the block
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guard let rawTx = try coordinator.getIncomingTransactions()?.first else {
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XCTFail("no incoming transaction after")
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return
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}
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let latestHeight = try coordinator.latestHeight()
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let sentTxHeight = latestHeight + 1
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notificationHandler.transactionsFound = { txs in
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let foundTx = txs.first(where: { $0.rawTransactionId == pendingTx.rawTransactionId })
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XCTAssertNotNil(foundTx)
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XCTAssertEqual(foundTx?.minedHeight, sentTxHeight)
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foundTransactionsExpectation.fulfill()
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}
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try coordinator.stageBlockCreate(height: sentTxHeight, count: 100)
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sleep(1)
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try coordinator.stageTransaction(rawTx, at: sentTxHeight)
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try coordinator.applyStaged(blockheight: sentTxHeight)
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sleep(2)
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let mineExpectation = XCTestExpectation(description: "mineTxExpectation")
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try coordinator.sync(
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completion: { synchronizer in
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let pendingTransaction = synchronizer.pendingTransactions
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.first(where: { $0.rawTransactionId == pendingTx.rawTransactionId })
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XCTAssertNotNil(pendingTransaction, "pending transaction should have been mined by now")
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XCTAssertTrue(pendingTransaction?.isMined ?? false)
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XCTAssertEqual(pendingTransaction?.minedHeight, sentTxHeight)
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mineExpectation.fulfill()
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},
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error: { error in
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guard let e = error else {
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XCTFail("unknown error syncing after sending transaction")
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return
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}
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XCTFail("Error: \(e)")
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}
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)
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wait(for: [mineExpectation, transactionMinedExpectation, foundTransactionsExpectation], timeout: 5)
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// 7 advance to confirmation
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try coordinator.applyStaged(blockheight: sentTxHeight + 10)
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sleep(2)
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// rewind 5 blocks prior to sending
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try coordinator.synchronizer.rewind(.height(blockheight: sentTxHeight - 5))
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guard
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let pendingEntity = try coordinator.synchronizer.allPendingTransactions()
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.first(where: { $0.rawTransactionId == pendingTx.rawTransactionId })
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else {
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XCTFail("sent pending transaction not found after rewind")
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return
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}
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XCTAssertFalse(pendingEntity.isMined)
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let confirmExpectation = XCTestExpectation(description: "confirm expectation")
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notificationHandler.transactionsFound = { txs in
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XCTAssertEqual(txs.count, 1)
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guard let transaction = txs.first else {
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XCTFail("should have found sent transaction but didn't")
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return
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}
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XCTAssertEqual(transaction.rawTransactionId, pendingTx.rawTransactionId, "should have mined sent transaction but didn't")
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}
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notificationHandler.synchronizerMinedTransaction = { transaction in
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XCTFail("We shouldn't find any mined transactions at this point but found \(transaction)")
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}
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try coordinator.sync(
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completion: { _ in
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confirmExpectation.fulfill()
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},
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error: { e in
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self.handleError(e)
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}
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)
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wait(for: [confirmExpectation], timeout: 10)
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let confirmedPending = try coordinator.synchronizer.allPendingTransactions()
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.first(where: { $0.rawTransactionId == pendingTx.rawTransactionId })
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XCTAssertNil(confirmedPending, "pending, now confirmed transaction found")
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XCTAssertEqual(coordinator.synchronizer.initializer.getBalance(), 0)
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XCTAssertEqual(coordinator.synchronizer.initializer.getVerifiedBalance(), 0)
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}
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}
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