| [1] | 1 | #!/usr/bin/env python |
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| 2 | # |
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| 3 | |
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| 4 | import unittest |
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| 5 | from Numeric import zeros, array, allclose |
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| 6 | from math import sqrt, pi |
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| 7 | |
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| 8 | from util import * |
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| 9 | from config import epsilon |
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| 10 | |
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| 11 | class TestCase(unittest.TestCase): |
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| 12 | def setUp(self): |
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| 13 | pass |
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| 14 | |
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| 15 | def tearDown(self): |
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| 16 | pass |
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| 17 | |
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| 18 | |
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| 19 | def test_gradient(self): |
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| 20 | x0 = 0.0; y0 = 0.0; z0 = 0.0 |
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| 21 | x1 = 1.0; y1 = 0.0; z1 = -1.0 |
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| 22 | x2 = 0.0; y2 = 1.0; z2 = 0.0 |
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| 23 | |
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| 24 | zx, zy = gradient(x0, y0, x1, y1, x2, y2, z0, z1, z2) |
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| 25 | |
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| 26 | assert zx == -1.0 |
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| 27 | assert zy == 0.0 |
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| 28 | |
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| 29 | |
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| 30 | |
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| 31 | |
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| 32 | def test_gradient2(self): |
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| 33 | |
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| 34 | from util import gradient |
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| 35 | x0 = 2.0/3; y0 = 2.0/3 |
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| 36 | x1= 8.0/3; y1 = 2.0/3 |
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| 37 | x2 = 2.0/3; y2 = 8.0/3 |
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| 38 | |
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| 39 | q0 = 2.0+2.0/3 |
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| 40 | q1 = 8.0+2.0/3 |
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| 41 | q2 = 2.0+8.0/3 |
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| 42 | |
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| 43 | #Gradient of fitted pwl surface |
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| 44 | a, b = gradient(x0, y0, x1, y1, x2, y2, q0, q1, q2) |
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| 45 | |
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| 46 | assert abs(a - 3.0) < epsilon |
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| 47 | assert abs(b - 1.0) < epsilon |
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| 48 | |
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| 49 | |
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| 50 | |
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| 51 | def test_that_C_extension_compiles(self): |
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| 52 | FN = 'util_ext.c' |
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| 53 | try: |
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| 54 | import util_ext |
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| 55 | except: |
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| 56 | from compile import compile |
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| 57 | |
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| 58 | try: |
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| 59 | compile(FN) |
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| 60 | except: |
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| 61 | raise 'Could not compile %s' %FN |
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| 62 | else: |
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| 63 | import util_ext |
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| 64 | |
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| 65 | |
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| 66 | def test_gradient_C_extension(self): |
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| 67 | from util_ext import gradient as gradient_c |
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| 68 | |
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| 69 | x0 = 2.0/3; y0 = 2.0/3 |
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| 70 | x1= 8.0/3; y1 = 2.0/3 |
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| 71 | x2 = 2.0/3; y2 = 8.0/3 |
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| 72 | |
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| 73 | q0 = 2.0+2.0/3 |
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| 74 | q1 = 8.0+2.0/3 |
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| 75 | q2 = 2.0+8.0/3 |
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| 76 | |
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| 77 | #Gradient of fitted pwl surface |
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| 78 | a, b = gradient_c(x0, y0, x1, y1, x2, y2, q0, q1, q2) |
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| 79 | |
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| 80 | assert abs(a - 3.0) < epsilon |
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| 81 | assert abs(b - 1.0) < epsilon |
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| 82 | |
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| 83 | |
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| 84 | def test_gradient_C_extension3(self): |
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| 85 | from util_ext import gradient as gradient_c |
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| 86 | |
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| 87 | from RandomArray import uniform, seed |
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| 88 | seed(17, 53) |
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| 89 | |
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| 90 | x0, x1, x2, y0, y1, y2 = uniform(0.0,3.0,6) |
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| 91 | |
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| 92 | q0 = uniform(0.0, 10.0, 4) |
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| 93 | q1 = uniform(1.0, 3.0, 4) |
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| 94 | q2 = uniform(7.0, 20.0, 4) |
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| 95 | |
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| 96 | |
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| 97 | for i in range(4): |
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| 98 | #Gradient of fitted pwl surface |
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| 99 | from util import gradient_python |
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| 100 | a_ref, b_ref = gradient(x0, y0, x1, y1, x2, y2, |
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| 101 | q0[i], q1[i], q2[i]) |
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| 102 | |
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| 103 | #print a_ref, b_ref |
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| 104 | a, b = gradient_c(x0, y0, x1, y1, x2, y2, |
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| 105 | q0[i], q1[i], q2[i]) |
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| 106 | |
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| 107 | #print a, a_ref, b, b_ref |
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| 108 | assert abs(a - a_ref) < epsilon |
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| 109 | assert abs(b - b_ref) < epsilon |
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| 110 | |
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| 111 | |
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| 112 | |
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| 113 | #Geometric |
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| 114 | #def test_distance(self): |
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| 115 | # from util import distance# |
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| 116 | # |
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| 117 | # self.failUnless( distance([4,2],[7,6]) == 5.0, |
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| 118 | # 'Distance is wrong!') |
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| 119 | # self.failUnless( allclose(distance([7,6],[9,8]), 2.82842712475), |
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| 120 | # 'distance is wrong!') |
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| 121 | # self.failUnless( allclose(distance([9,8],[4,2]), 7.81024967591), |
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| 122 | # 'distance is wrong!') |
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| 123 | # |
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| 124 | # self.failUnless( distance([9,8],[4,2]) == distance([4,2],[9,8]), |
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| 125 | # 'distance is wrong!') |
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| 126 | |
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| 127 | def test_angle(self): |
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| 128 | from util import angle |
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| 129 | |
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| 130 | assert allclose(angle([1.0, 1.0])/pi*180, 45.0) |
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| 131 | |
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| 132 | |
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| 133 | def test_anglediff(self): |
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| 134 | from util import anglediff |
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| 135 | |
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| 136 | assert allclose(anglediff([0.0, 1.], [1.0, 1.0])/pi*180, 45.0) |
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| 137 | |
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| 138 | |
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| 139 | |
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| 140 | |
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| 141 | #------------------------------------------------------------- |
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| 142 | if __name__ == "__main__": |
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| 143 | suite = unittest.makeSuite(TestCase,'test') |
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| 144 | runner = unittest.TextTestRunner() |
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| 145 | runner.run(suite) |
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| 146 | |
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| 147 | |
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| 148 | |
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| 149 | |
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| 150 | |
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