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//
// ShadowsocksCacheCleanerTests.swift
// MullvadRESTTests
//
// Created by Marco Nikic on 2025-09-18.
// Copyright © 2025 Mullvad VPN AB. All rights reserved.
//
import Network
import Testing
@testable import MullvadREST
@testable import MullvadSettings
@testable import MullvadTypes
actor ShadowsocksCacheCleanerTests {
var cache = ShadowsocksCacheStub(
configuration:
ShadowsocksConfiguration(
address: .ipv4(IPv4Address.loopback),
port: 1234,
password: "password",
cipher: "chacha20"
)
)
deinit {
cache.onRead = nil
cache.onWrite = nil
cache.onClear = nil
}
@Test func storesLastAccessMethodUUID() async throws {
let cacheCleaner = ShadowsocksCacheCleaner(cache: cache)
let newMethodUUID = UUID()
cacheCleaner.accessMethodChangedTo(newMethodUUID)
#expect(newMethodUUID == cacheCleaner.lastChangedUUID)
}
@Test func clearsCacheWhenPreviousChangeWasShadowsocksUUID() async throws {
let bridges = AccessMethodRepository.bridgeId
let direct = AccessMethodRepository.directId
await confirmation("Did clear cache") { didClearCache in
cache.onClear = {
didClearCache()
}
let cacheCleaner = ShadowsocksCacheCleaner(cache: cache)
cacheCleaner.accessMethodChangedTo(bridges)
cacheCleaner.accessMethodChangedTo(direct)
}
}
@Test func doesNotClearCacheWhenOtherMethodsChange() async throws {
let encryptedDNS = AccessMethodRepository.encryptedDNSId
let direct = AccessMethodRepository.directId
await confirmation("Did clear cache", expectedCount: 0) { didClearCache in
let cacheCleaner = ShadowsocksCacheCleaner(cache: cache)
cache.onClear = {
didClearCache()
}
cacheCleaner.accessMethodChangedTo(encryptedDNS)
cacheCleaner.accessMethodChangedTo(direct)
}
}
}
struct ShadowsocksCacheStub: ShadowsocksConfigurationCacheProtocol {
let configuration: ShadowsocksConfiguration
var onRead: (@Sendable () -> Void)?
var onWrite: (@Sendable () -> Void)?
var onClear: (@Sendable () -> Void)?
func read() throws -> ShadowsocksConfiguration {
onRead?()
return configuration
}
func write(_ configuration: ShadowsocksConfiguration) throws {
onWrite?()
}
func clear() throws {
onClear?()
}
}
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