/usr/lib/python2.7/dist-packages/cartopy/tests/crs/test_mercator.py is in python-cartopy 0.14.2+dfsg1-2build3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# This file is part of cartopy.
#
# cartopy is free software: you can redistribute it and/or modify it under
# the terms of the GNU Lesser General Public License as published by the
# Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# cartopy is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with cartopy. If not, see <https://www.gnu.org/licenses/>.
from __future__ import (absolute_import, division, print_function)
import unittest
from numpy.testing import assert_almost_equal
from nose.tools import assert_equal, assert_true, assert_not_equal
import cartopy.crs as ccrs
def test_default():
crs = ccrs.Mercator()
assert_equal(crs.proj4_init, ('+ellps=WGS84 +proj=merc +lon_0=0.0 +k=1 '
'+units=m +no_defs'))
assert_almost_equal(crs.boundary.bounds,
[-20037508, -15496571, 20037508, 18764656], decimal=0)
def test_eccentric_globe():
globe = ccrs.Globe(semimajor_axis=10000, semiminor_axis=5000,
ellipse=None)
crs = ccrs.Mercator(globe=globe, min_latitude=-40, max_latitude=40)
assert_equal(crs.proj4_init, ('+a=10000 +b=5000 +proj=merc +lon_0=0.0 '
'+k=1 +units=m +no_defs'))
assert_almost_equal(crs.boundary.bounds,
[-31415.93, -2190.5, 31415.93, 2190.5], decimal=2)
assert_almost_equal(crs.x_limits, [-31415.93, 31415.93], decimal=2)
assert_almost_equal(crs.y_limits, [-2190.5, 2190.5], decimal=2)
def test_equality():
default = ccrs.Mercator()
crs = ccrs.Mercator(min_latitude=0)
crs2 = ccrs.Mercator(min_latitude=0)
# Check the == and != operators.
assert_equal(crs, crs2)
assert_not_equal(crs, default)
assert_true(crs != default)
assert_not_equal(hash(crs), hash(default))
assert_equal(hash(crs), hash(crs2))
def test_central_longitude():
cl = 10.0
crs = ccrs.Mercator(central_longitude=cl)
proj4_str = ('+ellps=WGS84 +proj=merc +lon_0={} +k=1 '
'+units=m +no_defs'.format(cl))
assert_equal(crs.proj4_init, proj4_str)
assert_almost_equal(crs.boundary.bounds,
[-20037508, -15496570, 20037508, 18764656], decimal=0)
if __name__ == '__main__':
import nose
nose.runmodule(argv=['-s', '--with-doctest'], exit=False)
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