swiftlang
API or mechanism to perform an action once before/after running all of the tests in a suite type
Description
We should have an API or mechanism to perform an action once inside a suite type before or after running all of that suite's tests.
Conceptually, this would be similar to XCTest's class-level +setUp and +tearDown APIs, or what some other testing libraries call "BeforeAll" and "AfterAll". However, for a more modern Swift solution, it may be better to use a closure- or scoped access- style API, since that interoperates better with Swift concurrency and allows using @TaskLocal.
rdar://103616215
Expected behavior
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Actual behavior
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Steps to reproduce
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swift-testing version/commit hash
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Swift & OS version (output of swift --version && uname -a)
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I think the right basic shape for this is some protocol, i.e.:
protocol CustomWhateverable {
static func beforeAll(in suiteType: Self.Type) async throws
static func afterAll(in suiteType: Self.Type) async throws
}
Or something like that. Runner can then detect that a suite type conforms to this protocol and, if so, trivially call those functions at the appropriate times.
