Xcode on macOS fails: cannot find 'fulfillment' in scope

[dirtyhenry]

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When running a GitHub action to test a macOS app, I get the following error:

error: cannot find 'fulfillment' in scope

As a matter of fact, I am using XCTest's fulfillment, that was introduced with Xcode 11.0+ and has the following availability:

@available(macOS 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)

So I am not sure why I get the error given that:

• My package is available for iOS 13 and beyond;
• The software included in the GitHub runner image includes Xcode 14.

Any help to figure out how to fix this issue is welcome 🙏

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[dirtyhenry]

A workaround that I set up on swift-blocks:

#if os(Linux)
import XCTest

extension XCTestCase {
    /// Wait on an array of expectations for up to the specified timeout, and optionally specify whether they
    /// must be fulfilled in the given order. May return early based on fulfillment of the waited on expectations.
    ///
    /// - Parameter expectations: The expectations to wait on.
    /// - Parameter timeout: The maximum total time duration to wait on all expectations.
    /// - Parameter enforceOrder: Specifies whether the expectations must be fulfilled in the order
    ///   they are specified in the `expectations` Array. Default is false.
    /// - Parameter file: The file name to use in the error message if
    ///   expectations are not fulfilled before the given timeout. Default is the file
    ///   containing the call to this method. It is rare to provide this
    ///   parameter when calling this method.
    /// - Parameter line: The line number to use in the error message if the
    ///   expectations are not fulfilled before the given timeout. Default is the line
    ///   number of the call to this method in the calling file. It is rare to
    ///   provide this parameter when calling this method.
    ///
    /// - SeeAlso: XCTWaiter
    func fulfillment(of expectations: [XCTestExpectation], timeout: TimeInterval, enforceOrder: Bool = false) async {
        await withCheckedContinuation { continuation in
            // This function operates by blocking a background thread instead of one owned by libdispatch or by the
            // Swift runtime (as used by Swift concurrency.) To ensure we use a thread owned by neither subsystem, use
            // Foundation's Thread.detachNewThread(_:).
            Thread.detachNewThread { [self] in
                wait(for: expectations, timeout: timeout, enforceOrder: enforceOrder)
                continuation.resume()
            }
        }
    }
}
#endif