test: add async signal tests for events (#17)

* test: add async signal tests for events

* wip: improve test cases

Author: soumyamahunt

Sources/AsyncObjects/AsyncCountdownEvent.swift

@@ -1,8 +1,4 @@
-#if swift(>=5.7)
 import Foundation
-#else
-@preconcurrency import Foundation
-#endif
 
 import OrderedCollections
 

Sources/AsyncObjects/AsyncEvent.swift

@@ -1,8 +1,4 @@
-#if swift(>=5.7)
 import Foundation
-#else
-@preconcurrency import Foundation
-#endif
 
 /// An object that controls execution of tasks depending on the signal state.
 ///

Sources/AsyncObjects/AsyncSemaphore.swift

@@ -1,8 +1,4 @@
-#if swift(>=5.7)
 import Foundation
-#else
-@preconcurrency import Foundation
-#endif
 
 import OrderedCollections
 

Sources/AsyncObjects/Continuation/ContinuableCollection.swift

@@ -1,8 +1,4 @@
-#if swift(>=5.7)
 import Foundation
-#else
-@preconcurrency import Foundation
-#endif
 
 /// A type that manages a collection of continuations with an associated key.
 ///

Sources/AsyncObjects/Continuation/ContinuableCollectionActor.swift

@@ -1,14 +1,12 @@
-#if swift(>=5.7)
 import Foundation
 
+#if swift(>=5.7)
 /// An actor type that manages a collection of continuations with an associated key.
 ///
 /// On `Swift 5.7` and above [actor isolation bug with protocol conformance](https://forums.swift.org/t/actor-isolation-is-broken-by-protocol-conformance/57040)
 /// is fixed, and hence original protocol can be used without any issue.
 typealias ContinuableCollectionActor = ContinuableCollection
 #else
-@preconcurrency import Foundation
-
 /// An actor type that manages a collection of continuations with an associated key.
 ///
 /// This is to avoid [actor isolation bug with protocol conformance on older `Swift` versions](https://forums.swift.org/t/actor-isolation-is-broken-by-protocol-conformance/57040).

Sources/AsyncObjects/Continuation/TrackedContinuation.swift

@@ -1,8 +1,4 @@
-#if swift(>=5.7)
 import Foundation
-#else
-@preconcurrency import Foundation
-#endif
 
 /// A mechanism to interface between synchronous and asynchronous code,
 /// with tracking state data.

Sources/AsyncObjects/Future.swift

@@ -1,8 +1,4 @@
-#if swift(>=5.7)
 import Foundation
-#else
-@preconcurrency import Foundation
-#endif
 
 /// An object that eventually produces a single value and then finishes or fails.
 ///

Sources/AsyncObjects/TaskQueue.swift

@@ -1,8 +1,4 @@
-#if swift(>=5.7)
 import Foundation
-#else
-@preconcurrency import Foundation
-#endif
 
 import OrderedCollections
 

Tests/AsyncObjectsTests/AsyncCountdownEventTests.swift

@@ -17,6 +17,17 @@ class AsyncCountdownEventTests: XCTestCase {
         try await event.wait(forSeconds: 5)
     }
 
+    func testWithIncrementSignalAfterSomeWait() async throws {
+        let event = AsyncCountdownEvent()
+        event.increment(by: 10)
+        try await waitUntil(event, timeout: 5) { $0.currentCount == 10 }
+        Task {
+            try await Task.sleep(seconds: 1)
+            await event.signal(concurrent: 10)
+        }
+        try await event.wait(forSeconds: 10)
+    }
+
     func testWithOverIncrement() async throws {
         let event = AsyncCountdownEvent()
         event.increment(by: 10)
@@ -78,7 +89,7 @@ class AsyncCountdownEventTests: XCTestCase {
         event.signal()
         try await event.wait(forSeconds: 5)
         self.addTeardownBlock { [weak event] in
-            try await waitUntil(event, timeout: 5) { $0.assertReleased() }
+            try await waitUntil(event, timeout: 10) { $0.assertReleased() }
         }
     }
 

Tests/AsyncObjectsTests/AsyncEventTests.swift

@@ -10,6 +10,15 @@ class AsyncEventTests: XCTestCase {
         try await event.wait(forSeconds: 3)
     }
 
+    func testSignalAfterSomeWait() async throws {
+        let event = AsyncEvent(signaledInitially: false)
+        Task {
+            try await Task.sleep(seconds: 1)
+            event.signal()
+        }
+        try await event.wait(forSeconds: 10)
+    }
+
     func testResetSignal() async throws {
         let event = AsyncEvent()
         event.reset()
@@ -29,7 +38,7 @@ class AsyncEventTests: XCTestCase {
         try await event.wait(forSeconds: 3)
         await task.value
         self.addTeardownBlock { [weak event] in
-            try await waitUntil(event, timeout: 5) { $0.assertReleased() }
+            try await waitUntil(event, timeout: 10) { $0.assertReleased() }
         }
     }