debounce delay more than design

[dourgulf]

testcase: func testDebounce() { let exp = self.expectation(description: "Task") Task { var runCount = 0 for i in 0..<10 { debounce(option: .runFirst) { print(Date().printFormat(), "debounce test: (i)") runCount += 1 } try? await Task.sleep(for: .milliseconds(600)) } // exp.fulfill() } self.wait(for: [exp], timeout: 10) } result: 2024-04-28 09:49:41.257 debounce test: 0 2024-04-28 09:49:41.879 debounce test: 1 2024-04-28 09:49:42.289 debounce test: 0 2024-04-28 01:49:42 +0000 task is cancelled 2024-04-28 01:49:43 +0000 task is cancelled 2024-04-28 01:49:43 +0000 task is cancelled 2024-04-28 01:49:44 +0000 task is cancelled 2024-04-28 01:49:44 +0000 task is cancelled 2024-04-28 01:49:45 +0000 task is cancelled 2024-04-28 01:49:46 +0000 task is cancelled 2024-04-28 01:49:46 +0000 task is cancelled 2024-04-28 09:49:47.855 debounce test: 9

two problem:

1. first task run two times
2. task delay more than 1 second(duration)

the debounce expect in duration only trigger only once, but now, it delay much more time than duration