def test_check_for_metadata_get_min_height():
gebco = Gebco()
data = gebco.get_min_height(51, 7, 52, 8)
assert data['h_min'] != gebco.NODATA
assert isinstance(data['h_min'], float)
assert isinstance(data['location_min'], list)
assert data['counter_min'] >= 0
assert isinstance(data['source'], str)
assert isinstance(data['attributions'], list)
def test_check_bounds_get_min_height():
gebco = Gebco()
# in bounds
assert gebco.get_min_height(52.5, 5, 53, 5.5)['h_min'] != gebco.NODATA
# invalid coordinates
with pytest.raises(ValueError):
gebco.get_min_height(52.5, 5, 91, 5.5)
with pytest.raises(ValueError):
gebco.get_min_height(-91, 5, 53, 5.5)
with pytest.raises(ValueError):
gebco.get_min_height(52.5, -181, 53, 5.5)
with pytest.raises(ValueError):
gebco.get_min_height(52.5, 5, 53, 181)
# incorrect rectangle
assert gebco.get_min_height(54.886907, 15.570925, 47.240591,
6.093066)['h_min'] == gebco.NODATA
# lowest location in the bounding box of Germany
assert math.isclose(gebco.get_min_height(47.240591, 6.093066, 54.886907,
15.570925)['h_min'],
-195.2,
abs_tol=16)
# lowest location of the world
assert math.isclose(gebco.get_min_height(-90, -180, 90, 180)['h_min'],
-10952,
abs_tol=16)