87 lines
2.5 KiB
Swift
87 lines
2.5 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 TestDbBuilder {
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enum TestBuilderError: Error {
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case generalError
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}
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static func inMemoryCompactBlockStorage() throws -> CompactBlockStorage {
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let compactBlockDao = CompactBlockStorage(connectionProvider: InMemoryDbProvider())
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try compactBlockDao.createTable()
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return compactBlockDao
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}
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static func diskCompactBlockStorage(at url: URL) throws -> CompactBlockStorage {
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let compactBlockDao = CompactBlockStorage(connectionProvider: SimpleConnectionProvider(path: url.absoluteString))
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try compactBlockDao.createTable()
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return compactBlockDao
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}
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static func seed(db: CompactBlockStoring, with blockRange: CompactBlockRange) 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 db.write(blocks: blocks)
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}
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}
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struct InMemoryDbProvider: ConnectionProvider {
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var readonly: Bool
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init(readonly: Bool = false) {
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self.readonly = readonly
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}
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func connection() throws -> Connection {
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try Connection(.inMemory, readonly: readonly)
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}
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}
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struct StubBlockCreator {
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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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print("error creating stub block")
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return nil
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}
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return ZcashCompactBlock(height: height, data: data)
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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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print("Status \(status)")
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return nil
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}
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}
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