public void GetTemperature_GetTemperatureUsingMachineId_ReturnTrue()
{
Machine machine = new Machine()
{
MachineId = "IDX147",
MachineName = "Machine147"
};
MachineManager machineMgr = new MachineManager();
machineMgr.CreateMachine(machine: machine);
machineMgr.SetTemperature(120, machine.MachineId);
int?temp = machineMgr.GetTemperature(machine.MachineId);
Assert.IsTrue(temp != null && temp == 120);
}