func testOneshotTimerCancelled() {

let timeoutMilliseconds = 5.0

var timeout: JSTimer!

timeout = JSTimer(millisecondsDelay: timeoutMilliseconds, isRepeating: false) {

XCTFail("timer should be cancelled")

}

_ = timeout

timeout = nil

}

func testRepeatingTimerCancelled() async throws {

var count = 0.0

let maxCount = 5.0

var interval: JSTimer?

let start = JSDate().valueOf()

let timeoutMilliseconds = 5.0

await withCheckedContinuation { continuation in

interval = JSTimer(millisecondsDelay: 5, isRepeating: true) {

// ensure that JSTimer is living

XCTAssertNotNil(interval)

// verify that at least `timeoutMilliseconds * count` passed since the `timeout`

// timer started

XCTAssertTrue(start + timeoutMilliseconds * count <= JSDate().valueOf())

guard count < maxCount else {

// stop the timer after `maxCount` reached

interval = nil

continuation.resume()

return

}

count += 1

}

}

withExtendedLifetime(interval) {}

}

func testTimer() async throws {

let timeoutMilliseconds = 5.0

var timeout: JSTimer!

await withCheckedContinuation { continuation in

timeout = JSTimer(millisecondsDelay: timeoutMilliseconds, isRepeating: false) {

continuation.resume()

}

}

withExtendedLifetime(timeout) {}

}