/usr/lib/python3/dist-packages/mpl_toolkits/basemap/test.py is in python3-mpltoolkits.basemap 1.1.0+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 | from distutils.version import LooseVersion
import sys
from mpl_toolkits.basemap import Basemap, shiftgrid
import numpy as np
import pyproj
# beginnings of a test suite.
from numpy.testing import TestCase, assert_almost_equal
try:
from unittest import skipIf
except ImportError:
# for new features, fallback to unittest backport for Python 2.4 - 2.6
from unittest2 import skipIf
# For Python 3.x this will be true
PY3 = (sys.version_info[0] == 3)
class TestRotateVector(TestCase):
def make_array(self):
lat = np.array([0, 45, 75, 90])
lon = np.array([0,90,180,270])
u = np.ones((len(lat), len(lon)))
v = np.zeros((len(lat), len(lon)))
return u,v,lat,lon
def test_cylindrical(self):
# Cylindrical case
B = Basemap()
u,v,lat,lon=self.make_array()
ru, rv = B.rotate_vector(u,v, lon, lat)
# Check that the vectors are identical.
assert_almost_equal(ru, u)
assert_almost_equal(rv, v)
def test_nan(self):
B = Basemap()
u,v,lat,lon=self.make_array()
# Set one element to 0, so that the vector magnitude is 0.
u[1,1] = 0.
ru, rv = B.rotate_vector(u,v, lon, lat)
assert not np.isnan(ru).any()
assert_almost_equal(u, ru)
assert_almost_equal(v, rv)
def test_npstere(self):
# NP Stereographic case
B=Basemap(projection='npstere', boundinglat=50., lon_0=0.)
u,v,lat,lon=self.make_array()
v = np.ones((len(lat), len(lon)))
ru, rv = B.rotate_vector(u,v, lon, lat)
assert_almost_equal(ru[2, :],[1,-1,-1,1], 6)
assert_almost_equal(rv[2, :],[1,1,-1,-1], 6)
class TestShiftGrid(TestCase):
def make_data_cyc(self):
loncyc = np.array([0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300,\
330, 360],dtype=np.float)
gridcyc = np.array([[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,\
11, 0]],dtype=np.float)
lonoutcyc = np.array([-180, -150, -120, -90, -60, -30, 0, 30,60,90,\
120, 150, 180],dtype=np.float)
gridoutcyc = np.array([[ 6, 7, 8, 9, 10, 11, 0, 1, 2,3,\
4, 5, 6]],dtype=np.float)
return loncyc, gridcyc, lonoutcyc, gridoutcyc
def make_data_nocyc(self):
lonnocyc = np.array([0, 30, 60, 90, 120, 150, 180, 210, 240, 270,\
300, 330],dtype=np.float)
gridnocyc = np.array([[0, 1, 2, 3, 4, 5, 6, 7, 8, 9,\
10, 11]],dtype=np.float)
lonoutnocyc = np.array([-180, -150, -120, -90, -60, -30, 0, 30, 60,\
90, 120, 150],dtype=np.float)
gridoutnocyc = np.array([[ 6, 7, 8, 9, 10, 11, 0, 1, 2,\
3, 4, 5]],dtype=np.float)
return lonnocyc, gridnocyc, lonoutnocyc, gridoutnocyc
def make_data_nocyc2(self):
lonnocyc2 = np.array([15, 45, 75, 105, 135, 165, 195, 225, 255, 285,\
315, 345],dtype=np.float)
gridnocyc2 = np.array([[0, 1, 2, 3, 4, 5, 6, 7, 8, 9,\
10, 11]],dtype=np.float)
lonoutnocyc2 = np.array([-165, -135, -105, -75, -45, -15, 15,45,75,\
105, 135, 165],dtype=np.float)
gridoutnocyc2 = np.array([[ 6, 7, 8, 9, 10, 11, 0, 1, 2,\
3, 4, 5]],dtype=np.float)
return lonnocyc2, gridnocyc2, lonoutnocyc2, gridoutnocyc2
def test_cyc(self):
lonin, gridin, lonout, gridout = self.make_data_cyc()
grid, lon = shiftgrid(lonin[len(lonin)//2], gridin, lonin, start=False)
assert (lon==lonout).all()
assert (grid==gridout).all()
def test_no_cyc(self):
lonin, gridin, lonout, gridout = self.make_data_nocyc()
grid, lon = shiftgrid(lonin[len(lonin)//2], gridin, lonin, start=False)
assert (lon==lonout).all()
assert (grid==gridout).all()
def test_no_cyc2(self):
lonin, gridin, lonout, gridout = self.make_data_nocyc2()
grid, lon = shiftgrid(lonin[len(lonin)//2], gridin, lonin, start=False)
assert (lon==lonout).all()
assert (grid==gridout).all()
class TestShiftdata(TestCase):
def _get_2d_lons(self, lons1d):
"""
Generate a 2d grid
"""
lats = [10, ] * len(lons1d)
return np.meshgrid(lons1d, lats)[0]
def test_non_monotonous_longitudes(self):
"""
when called for scatter, the longitudes passed to shiftdata are
not necessarily monotonous...
"""
lons = [179, 180, 180, 0, 290, 10, 320, -150, 350, -250, 250]
bm = Basemap(lon_0=0)
# before, having several break points would cause the exception,
# inside the shiftdata method called from scatter method.
self.assertRaises(ValueError, bm.shiftdata, lons, fix_wrap_around=True)
lons_new = bm.shiftdata(lons, fix_wrap_around=False)
# Check if the modified longitudes are inside of the projection region
for lon in lons_new:
assert lon >= bm.projparams["lon_0"] - 180
assert lon <= bm.projparams["lon_0"] + 180
def test_shiftdata_on_monotonous_lons(self):
"""
Test that shiftdata with fix_wrap_around keyword added works as before,
when it is True
"""
bm = Basemap(lon_0=0)
lons_in = [120, 140, 160, 180, 200, 220]
lons_out_expect = [-160, -140, 120, 140, 160, 180]
lons_out = bm.shiftdata(lons_in, fix_wrap_around=True)
assert_almost_equal(lons_out, lons_out_expect)
def test_2_points_should_work(self):
"""
Shiftdata should work with 2 points
"""
bm = Basemap(llcrnrlon=0, llcrnrlat=-80, urcrnrlon=360, urcrnrlat=80, projection='mill')
lons_expected = [10, 15, 20]
lonsout = bm.shiftdata(lons_expected[:])
assert_almost_equal(lons_expected, lonsout)
lonsout_expected = bm.shiftdata([10, 361, 362])
lonsout = bm.shiftdata([10, 361])
assert_almost_equal(lonsout_expected[:len(lonsout)], lonsout)
def test_1_point_should_work(self):
bm = Basemap(llcrnrlon=0, llcrnrlat=-80, urcrnrlon=360, urcrnrlat=80, projection='mill')
# should not fail
lonsout = bm.shiftdata([361])
assert_almost_equal(lonsout, [1.0,])
lonsout = bm.shiftdata([10])
assert_almost_equal(lonsout, [10.0,])
lonsin = np.array([361.0])
lonsin.shape = (1, 1)
lonsout = bm.shiftdata(lonsin[:])
assert_almost_equal(lonsout.squeeze(), [1.0,])
def test_less_than_n_by_3_points_should_work(self):
bm = Basemap(llcrnrlon=0, llcrnrlat=-80, urcrnrlon=360, urcrnrlat=80, projection='mill')
lons_expected = self._get_2d_lons([10, 15, 20])
# nothing should change
lonsout = bm.shiftdata(lons_expected)
assert_almost_equal(lons_expected, lonsout)
# shift n x 3 and n x 2 grids and compare results over overlapping region
lonsin = self._get_2d_lons([10, 361, 362])
lonsout_expected = bm.shiftdata(lonsin[:])[:, :2]
lonsout = bm.shiftdata(lonsin[:, :2])
assert_almost_equal(lonsout_expected, lonsout)
@skipIf(PY3 and LooseVersion(pyproj.__version__) <= LooseVersion("1.9.4"),
"Test skipped in Python 3.x with pyproj version 1.9.4 and below.")
class TestProjectCoords(TestCase):
def get_data(self):
lons, lats = np.arange(-180, 180, 20), np.arange(-90, 90, 10)
lats, lons = np.meshgrid(lats, lons)
lons, lats = lons.copy(order="F"), lats.copy(order="F")
return lons, lats, Basemap(projection="sinu", lon_0=0)
def test_convert(self):
"""
Should not fail on C non-contiguous arrays
"""
lons, lats, bmp = self.get_data()
assert not lons.flags['C_CONTIGUOUS']
assert isinstance(lons, np.ndarray)
assert isinstance(bmp, Basemap)
xx1, yy1 = bmp(lons, lats)
def test_results_should_be_same_for_c_and_f_order_arrays(self):
lons, lats, bmp = self.get_data()
xx1, yy1 = bmp(lons.copy(order="C"), lats.copy(order="C"))
xx2, yy2 = bmp(lons.copy(order="F"), lats.copy(order="F"))
assert_almost_equal(xx1, xx2)
assert_almost_equal(yy1, yy2)
class TestInputValidation(TestCase):
def test_optional_casting(self):
# Test for the bug reported in gh:#260
d = {'llcrnrlat': 28.979408, 'urcrnrlat': 35.19622,
'llcrnrlon': -95.614105, 'urcrnrlon': -77.554749,
'lon_0': -87.0, 'resolution': 'c', 'lat_0': 32.070374,
'projection': 'lcc'}
bmap1 = Basemap(lat_1=30.0, **d)
bmap2 = Basemap(lat_1=np.array([30.0], dtype='float32'), **d)
assert bmap1.proj4string == bmap2.proj4string
def test():
"""
Run some tests.
"""
import unittest
from . import test
runner = unittest.TextTestRunner()
suite = unittest.findTestCases(test)
runner.run(suite)
if __name__ == '__main__':
# When called with the -v / --verbose commandline parameter, it will
# give package dependent version information:
# $ python test.py --verbose
import sys
import unittest
from mpl_toolkits.basemap.diagnostic import package_versions
if '--verbose' in sys.argv or '-v' in sys.argv:
pkg_vers = package_versions()
print('Basemaps installed package versions:')
print(('{0}\n'.format(pkg_vers)))
unittest.main()
|