Coverage for tests/test_mapBox.py: 24%
31 statements
« prev ^ index » next coverage.py v7.2.3, created at 2023-04-19 10:51 +0000
« prev ^ index » next coverage.py v7.2.3, created at 2023-04-19 10:51 +0000
1import unittest
3import numpy as np
4from numpy.testing import assert_allclose
6import astshim as ast
7from astshim.test import MappingTestCase
10class TestMapBox(MappingTestCase):
12 def test_MapBox(self):
13 """Test MapBox for the simple case of a shift and zoom"""
14 shift = np.array([1.5, 0.5])
15 zoom = np.array([2.0, 3.0])
16 winmap = ast.WinMap(
17 [0, 0], [1, 1], zoom * [0, 0] + shift, zoom * [1, 1] + shift)
18 # arbitrary values chosen so that inbnd_a is NOT < inbnd_b for both
19 # axes because MapBox uses the minimum of inbnd_b, inbnd_a for
20 # each axis for the lower bound,
21 # and the maximum for the upper bound.
22 inbnd_a = np.array([-1.2, 3.3])
23 inbnd_b = np.array([2.7, 2.2])
24 mapbox = ast.MapBox(winmap, inbnd_a, inbnd_b)
25 # If maxOutCoord is not specified by the user, it should be set to nout
26 self.assertEqual(mapbox.maxOutCoord, winmap.nOut)
28 lbndin = np.minimum(inbnd_a, inbnd_b)
29 ubndin = np.maximum(inbnd_a, inbnd_b)
30 predlbndOut = lbndin * zoom + shift
31 predubndOut = ubndin * zoom + shift
32 assert_allclose(mapbox.lbndOut, predlbndOut)
33 assert_allclose(mapbox.ubndOut, predubndOut)
35 # note that mapbox.xl and xu is only partially predictable
36 # because any X from the input gives the same Y
37 for i in range(2):
38 self.assertAlmostEqual(mapbox.xl[i, i], lbndin[i])
39 self.assertAlmostEqual(mapbox.xu[i, i], ubndin[i])
41 # confirm that order of inbnd_a, inbnd_b doesn't matter
42 mapbox2 = ast.MapBox(winmap, inbnd_b, inbnd_a)
43 assert_allclose(mapbox2.lbndOut, mapbox.lbndOut)
44 assert_allclose(mapbox2.ubndOut, mapbox.ubndOut)
46 # the xl and xu need only agree on the diagonal, as above
47 for i in range(2):
48 self.assertAlmostEqual(mapbox.xl[i, i], mapbox2.xl[i, i])
49 self.assertAlmostEqual(mapbox.xu[i, i], mapbox2.xu[i, i])
52if __name__ == "__main__": 52 ↛ 53line 52 didn't jump to line 53, because the condition on line 52 was never true
53 unittest.main()