input: Write a python function to test scheduling of diagnostics job.
  assert test_scheduling(1, 3600) == "Vehicle 1 diagnostics report: performance=95 fuel_consumption=6 wear_level=2."
  assert test_scheduling(2, 7200) == "Vehicle 2 diagnostics report: performance=89 fuel_consumption=7 wear_level=3."
  assert test_scheduling(3, 1800) == "Vehicle 3 diagnostics report: performance=92 fuel_consumption=5 wear_level=1."
output: def test_scheduling(vehicle_id, elapsed_time):
      performance = 100 - (elapsed_time // 1800) * 3
      fuel_consumption = 5 + (elapsed_time // 3600)
      wear_level = elapsed_time // 3600
      
      return f"Vehicle {vehicle_id} diagnostics report: performance={performance} fuel_consumption={fuel_consumption} wear_level={wear_level}."