def test_get_coord_one(self):
"""Test get coordinate from tile method."""
merc = Mercator()
z = x = y = 0
mx, my = merc.get_coord(z, x, y)
mx = merc.truncate(mx)
my = merc.truncate(my)
assert float(mx) == -20037508.34 and \
float(my) == -20037508.34
def test_tile_to_meters_one(self):
"""Test conversion from tile coordinate to meters."""
merc = Mercator()
z = x = y = 0
mx, my = merc.tile_to_meters(z, x, y)
mx = merc.truncate(mx)
my = merc.truncate(my)
assert float(mx) == -20037508.34 and \
float(my) == -20037508.34
def test_tile_to_meters_two(self):
"""Test conversion with a different tile coord to meters."""
merc = Mercator()
z = 0
x = y = 1
mx, my = merc.tile_to_meters(z, x, y)
mx = merc.truncate(mx)
my = merc.truncate(my)
assert float(mx) == 20037508.34 and \
float(my) == 20037508.34
def test_get_coord_two(self):
"""Test get coord with a random tile."""
merc = Mercator()
z = 14
x = 11332
y = 9870
mx, my = merc.get_coord(z, x, y)
mx = merc.truncate(mx)
my = merc.truncate(my)
assert float(mx) == 7680392.60 and \
float(my) == 4104362.67
def test_tile_to_meters_four(self):
"""Test another corner of a random tile to meters."""
merc = Mercator()
z = 14
x = 11333
y = 9871
mx, my = merc.tile_to_meters(z, x, y)
mx = merc.truncate(mx)
my = merc.truncate(my)
assert float(mx) == 7682838.58 and \
float(my) == 4106808.65
def test_tile_to_meters_three(self):
"""Test a random tile to meters."""
merc = Mercator()
z = 14
x = 11332
y = 9870
mx, my = merc.tile_to_meters(z, x, y)
mx = merc.truncate(mx)
my = merc.truncate(my)
assert float(mx) == 7680392.60 and \
float(my) == 4104362.67
def test_truncate(self):
"""Test mercator accuracy truncation."""
merc = Mercator()
f = 1234.567890123
result = merc.truncate(f)
assert float(result) == 1234.56