Swift Concurrency by Example 第2页
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How to test AsyncSequence and AsyncStream 如何测试 AsyncSequence 和 AsyncStream
Concurrent Swift code often streams values over time rather than returning them all at once, so it's important to be able to write tests to check an AsyncStream, AsyncSeq...
5个月前How to test completion handlers with Swift Testing and XCTest 如何使用 Swift Testing 和 XCTest 测试补全处理程序
When you're dealing with older concurrency code that relies on callback functions that get run when some work completes rather than using Swift concurrency's async/await ...
5个月前How to handle concurrency errors in unit tests 如何处理单元测试中的并发错误
Both Swift Testing and XCTest give us three main options for handling errors in tests: we can consider them immediate failures, we can handle them internally and make our own asser...
5个月前Introduction to testing Swift concurrency Swift 并发测试简介
Swift's full range of concurrency features work great with unit tests using both the legacy XCTest framework and the new Swift Testing framework.Swift 的全套并发功能非常适合使用旧...
5个月前
Important: Do not use an actor for your SwiftUI data models 重要提示：请勿将角色用于 SwiftUI 数据模型
Swift’s actors allow us to share data in multiple parts of our app without causing problems with concurrency, because they automatically ensure two pieces of code cannot...
5个月前
What’s the difference between actors, classes, and structs? Actors、Classes和 Structs 之间有什么区别？
Swift provides four concrete nominal types for defining custom objects: actors, classes, structs, and enums. Each of these works a little differently from the others, but the first...
5个月前What is actor reentrancy and how can it cause problems? 什么是 actor 重入性，它如何导致问题？
Actor-isolated functions are reentrant, which means it's possible for one piece of work to begin before a previous piece of work completes. This opens the possibility of subtle bug...
5个月前
What is actor hopping and how can it cause problems? 什么是 actor 跳转，它如何导致问题？
When a thread pauses work on one actor to start work on another actor instead, we call it actor hopping, and it will happen any time one actor calls another.当线程暂停对一个 a...
5个月前Understanding how global actor inference works 了解全局参与者推理的工作原理
Apple explicitly annotates many of its types as being @MainActor, including most UIKit types such as UIView and UIButton. However, for a while the Swift team da...
5个月前Who decides which actor code runs on? 谁决定在哪个 actor 代码上运行？
One common confusion with actors comes in deciding exactly where code runs, because just adding @MainActor and hoping for the best is rarely good enough.与 Actor 的一个常...
5个月前