def test_tile_to_meters_one(self):
# TODO: this should return -16106127.36
scal = ScaledWorldMercator()
z = x = y = 0
expected = -17179869.18
mx, my = scal.tile_to_meters(z, x, y)
mx = ScaledWorldMercator.truncate(mx)
my = round(my, 2)
assert float(mx) == expected and float(my) == expected
def test_tile_to_lat_lon_two(self):
z = 0
x = y = 1
lat, lon = ScaledWorldMercator.tile_to_lat_lon(z, x, y)
lat_result = Geodetic.truncate(lat)
assert float(lat_result) == 85.0840590 and \
lon == 180.0
def test_tile_to_lat_lon_one(self):
z = x = y = 0
lat, lon = ScaledWorldMercator.tile_to_lat_lon(z, x, y)
lat_result = Geodetic.truncate(lat)
assert float(lat_result) == -85.0840590 and \
lon == -180.0
def test_pixel_size(self):
z = randint(0, 21)
assert 2**z * ScaledWorldMercator.pixel_size(z) == 125829.12