def test_case_9():
highest_peak = HighestPeak()
grid = [
[1, 1, 1, 1],
[0, 0, 0, 0],
[1, 1, 1, 1],
[0, 0, 0, 0]
]
assert highest_peak.get_elevation(grid) == 1
def test_it_initializes():
highest_peak = HighestPeak()
assert highest_peak