Show the problem of testing an async function in Tuist

TestAsync.swift

class Subject {
    let dependency: Dependency

    func doSomethingAsync() {
        DispatchQueue.main.async {
            dependency.doSomething()
        }
    }
}

final class SubjectTests: XCTTestCase {
    func testDoSomethingAsync_callsDependency() {
        let fakeDependency = FakeDependency()
        let subject = Subject(dependency: fakeDependency)

        subject.doSomethingAsync()

        XCTAssertEqual(fakeDependency.doSomethingCallCount, 1) // It will fail because the implementation is async
    }
}