Question 1: Given the following implementation, please produce a test suite for TemperatureManager

question1.swift

import Foundation
import XCTest

// Implementation
protocol TemperatureManagerDelegate: AnyObject {
    func temperatureManager(_ temperatureManager: TemperatureManager, didUpdateTemperature temperature: Double)
}

class TemperatureManager {
    weak var delegate: TemperatureManagerDelegate?
    
    func startUpdating() {
        // Simulate of continuous update of temperature change.
        DispatchQueue.global().async {
            usleep(100)
            for i in 0..<5 {
                let newTemperature: Double = Double(i * 7)
                DispatchQueue.main.async {
                    self.delegate?.temperatureManager(self, didUpdateTemperature: newTemperature)
                }
            }
        }
    }
}