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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift Async Algorithms open source project
//
// Copyright (c) 2022 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
//
//===----------------------------------------------------------------------===//
import XCTest
import AsyncAlgorithms
final class TestDebounce: XCTestCase {
func test_delayingValues() throws {
guard #available(macOS 13.0, iOS 16.0, watchOS 9.0, tvOS 16.0, *) else { throw XCTSkip("Skipped due to Clock/Instant/Duration availability") }
validate {
"abcd----e---f-g----|"
$0.inputs[0].debounce(for: .steps(3), clock: $0.clock)
"------d----e-----g-|"
}
}
func test_delayingValues_dangling_last() throws {
guard #available(macOS 13.0, iOS 16.0, watchOS 9.0, tvOS 16.0, *) else { throw XCTSkip("Skipped due to Clock/Instant/Duration availability") }
validate {
"abcd----e---f-g-|"
$0.inputs[0].debounce(for: .steps(3), clock: $0.clock)
"------d----e----[g|]"
}
}
func test_finishDoesntDebounce() throws {
guard #available(macOS 13.0, iOS 16.0, watchOS 9.0, tvOS 16.0, *) else { throw XCTSkip("Skipped due to Clock/Instant/Duration availability") }
validate {
"a|"
$0.inputs[0].debounce(for: .steps(3), clock: $0.clock)
"-[a|]"
}
}
func test_throwDoesntDebounce() throws {
guard #available(macOS 13.0, iOS 16.0, watchOS 9.0, tvOS 16.0, *) else { throw XCTSkip("Skipped due to Clock/Instant/Duration availability") }
validate {
"a^"
$0.inputs[0].debounce(for: .steps(3), clock: $0.clock)
"-^"
}
}
func test_noValues() throws {
guard #available(macOS 13.0, iOS 16.0, watchOS 9.0, tvOS 16.0, *) else { throw XCTSkip("Skipped due to Clock/Instant/Duration availability") }
validate {
"----|"
$0.inputs[0].debounce(for: .steps(3), clock: $0.clock)
"----|"
}
}
func test_Rethrows() async throws {
guard #available(macOS 13.0, iOS 16.0, watchOS 9.0, tvOS 16.0, *) else { throw XCTSkip("Skipped due to Clock/Instant/Duration availability") }
let debounce = [1].async.debounce(for: .zero, clock: ContinuousClock())
for await _ in debounce {}
let throwingDebounce = [1].async.map { try throwOn(2, $0) }.debounce(for: .zero, clock: ContinuousClock())
for try await _ in throwingDebounce {}
}
func test_debounce_when_cancelled() async throws {
guard #available(macOS 13.0, iOS 16.0, watchOS 9.0, tvOS 16.0, *) else { throw XCTSkip("Skipped due to Clock/Instant/Duration availability") }
let t = Task {
try? await Task.sleep(nanoseconds: 1_000_000_000)
let c1 = Indefinite(value: "test1").async
for await _ in c1.debounce(for: .seconds(1), clock: .continuous) {}
}
t.cancel()
}
}
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