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Тесты для воспроизведения ошибки работы с многопоточностью
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| // | ||
| // Test_Threadsafety.swift | ||
| // EasyDi-iOS-Tests | ||
| // | ||
| // Created by Sergey V. Krupov on 21.11.2018. | ||
| // Copyright © 2018 AndreyZarembo. All rights reserved. | ||
| // | ||
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| import XCTest | ||
| import EasyDi | ||
|
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| fileprivate protocol SomeProtocol { | ||
| } | ||
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| fileprivate class SomeObject: SomeProtocol { | ||
| var values = Array<String>(repeating: "", count: 4000) | ||
| } | ||
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| fileprivate class TestAssembly: Assembly { | ||
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| var someObject: SomeProtocol { | ||
| return define(init: SomeObject()) { | ||
| for i in 0 ..< $0.values.count { | ||
| $0.values[i] = self.getSomeValue(at: i) | ||
| } | ||
| return $0 | ||
| } | ||
| } | ||
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| // Сделано для того, чтобы стабильно воспроизводить падение. Вряд ли в реальном приложении будет такой код. | ||
| private func getSomeValue(at index: Int) -> String { | ||
| return define(key: "getSomeValue_\(index)", init: "value-\(index)") | ||
| } | ||
| } | ||
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| final class Test_Threadsafety: XCTestCase { | ||
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| func test_ThreadSafety() { | ||
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| let context = DIContext() | ||
| let assembly = TestAssembly.instance(from: context) | ||
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| // Явно создаю 2 потока, т.к. не известно на скольких потоках будет работать concurrent dispatch queue | ||
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| let expectation1 = expectation(description: "Thread-1") | ||
| Thread.detachNewThread { | ||
| for _ in 1 ..< 10 { | ||
| _ = assembly.someObject | ||
| } | ||
| expectation1.fulfill() | ||
| } | ||
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| let expectation2 = expectation(description: "Thread-2") | ||
| Thread.detachNewThread { | ||
| for _ in 1 ..< 10 { | ||
| _ = assembly.someObject | ||
| } | ||
| expectation2.fulfill() | ||
| } | ||
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| wait(for: [expectation1, expectation2], timeout: 10) | ||
| } | ||
| } |