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TestThrottle.swift
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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 TestThrottle: XCTestCase {
func test_rate_0() 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 {
"abcdefghijk|"
$0.inputs[0]._throttle(for: .steps(0), clock: $0.clock)
"abcdefghijk|"
}
}
func test_rate_0_leading_edge() 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 {
"abcdefghijk|"
$0.inputs[0]._throttle(for: .steps(0), clock: $0.clock, latest: false)
"abcdefghijk|"
}
}
func test_rate_1() 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 {
"abcdefghijk|"
$0.inputs[0]._throttle(for: .steps(1), clock: $0.clock)
"abcdefghijk|"
}
}
func test_rate_1_leading_edge() 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 {
"abcdefghijk|"
$0.inputs[0]._throttle(for: .steps(1), clock: $0.clock, latest: false)
"abcdefghijk|"
}
}
func test_rate_2() 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 {
"abcdefghijk|"
$0.inputs[0]._throttle(for: .steps(2), clock: $0.clock)
"a-c-e-g-i-k|"
}
}
func test_rate_2_leading_edge() 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 {
"abcdefghijk|"
$0.inputs[0]._throttle(for: .steps(2), clock: $0.clock, latest: false)
"a-b-d-f-h-j|"
}
}
func test_rate_3() 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 {
"abcdefghijk|"
$0.inputs[0]._throttle(for: .steps(3), clock: $0.clock)
"a--d--g--j--[k|]"
}
}
func test_rate_3_leading_edge() 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 {
"abcdefghijk|"
$0.inputs[0]._throttle(for: .steps(3), clock: $0.clock, latest: false)
"a--b--e--h--[k|]"
}
}
func test_throwing() 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 {
"abcdef^hijk|"
$0.inputs[0]._throttle(for: .steps(2), clock: $0.clock)
"a-c-e-^"
}
}
func test_throwing_leading_edge() 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 {
"abcdef^hijk|"
$0.inputs[0]._throttle(for: .steps(2), clock: $0.clock, latest: false)
"a-b-d-^"
}
}
func test_emission_2_rate_1() 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-b-c-d-e-f-g-h-i-j-k-|"
$0.inputs[0]._throttle(for: .steps(1), clock: $0.clock)
"-a-b-c-d-e-f-g-h-i-j-k-|"
}
}
func test_emission_2_rate_2() 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-b-c-d-e-f-g-h-i-j-k-|"
$0.inputs[0]._throttle(for: .steps(2), clock: $0.clock)
"-a-b-c-d-e-f-g-h-i-j-k-|"
}
}
func test_emission_3_rate_2() 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--b--c--d--e--f--g|"
$0.inputs[0]._throttle(for: .steps(2), clock: $0.clock)
"--a--b--c--d--e--f--g|"
}
}
func test_emission_2_rate_3() 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-b-c-d-e-f-g-h-i-j-k-|"
$0.inputs[0]._throttle(for: .steps(3), clock: $0.clock)
"-a---c---e---g---i---k-|"
}
}
func test_trailing_delay_without_latest() 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 {
"abcdefghijkl|"
$0.inputs[0]._throttle(for: .steps(3), clock: $0.clock, latest: false)
"a--b--e--h--[k|]"
}
}
func test_trailing_delay_with_latest() 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 {
"abcdefghijkl|"
$0.inputs[0]._throttle(for: .steps(3), clock: $0.clock, latest: true)
"a--d--g--j--[l|]"
}
}
}