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RenderMeasurerTests.swift
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RenderMeasurerTests.swift
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// Copyright AudioKit. All Rights Reserved. Revision History at http://github.com/AudioKit/AudioKit/
import AudioKit
import AudioKitEX
import XCTest
import AVFAudio
import CAudioKitEX
class RenderMeasurerTests: XCTestCase {
let engine = AVAudioEngine()
var sleepProporition: Float = 1
lazy var source = AVAudioSourceNode { _, _, frameCount, _ -> OSStatus in
usleep(UInt32(Float(frameCount) / 44100 * 1000 * 1000 * self.sleepProporition))
return noErr
}
override func setUp() {
engine.attach(source)
engine.connect(source, to: engine.mainMixerNode, format: nil)
try! engine.start()
}
override func tearDown() {
engine.stop()
}
func testUsageHigherThen1() async throws {
self.sleepProporition = 1
let measurer = RenderMeasurer(node: source.auAudioUnit)
for _ in 1...10 {
try await Task.sleep(nanoseconds: 1_000_000_00)
XCTAssertGreaterThanOrEqual(measurer.usage(), 1)
}
}
func testUsageHigherThen05() async throws {
self.sleepProporition = 0.5
let measurer = RenderMeasurer(node: source.auAudioUnit)
for _ in 1...10 {
try await Task.sleep(nanoseconds: 1_000_000_00)
let usage = measurer.usage()
XCTAssertGreaterThanOrEqual(usage, 0.5)
XCTAssertLessThanOrEqual(usage, 1)
}
}
}