1 | """ |
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2 | Unit tests for specific models |
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3 | @author: Gervaise Alina / UTK |
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4 | """ |
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5 | |
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6 | import unittest, numpy,math |
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7 | |
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8 | from sans.models.MultiplicationModel import MultiplicationModel |
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9 | from sans.models.SphereModel import SphereModel |
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10 | from sans.models.SquareWellStructure import SquareWellStructure |
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11 | |
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12 | class TestDisperser(unittest.TestCase): |
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13 | """ Unit tests for sphere model * SquareWellStructure""" |
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14 | model1= SphereModel() |
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15 | model2= SquareWellStructure() |
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16 | model3= MultiplicationModel(model1, model2) |
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17 | details={} |
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18 | details['scale'] = ['', None, None] |
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19 | details['radius'] = ['A', None, None] |
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20 | details['contrast'] = ['A-2', None, None] |
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21 | details['background'] = ['cm-1', None, None] |
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22 | details['volfraction'] = ['', None, None] |
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23 | details['welldepth'] = ['kT', None, None] |
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24 | details['wellwidth'] = ['', None, None] |
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25 | |
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26 | ## fittable parameters |
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27 | fixed=[] |
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28 | fixed=['radius.width'] |
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29 | |
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30 | def test_multiplication_radius(self): |
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31 | """ test multiplication model""" |
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32 | from sans.models.MultiplicationModel import MultiplicationModel |
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33 | from sans.models.SphereModel import SphereModel |
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34 | from sans.models.HayterMSAStructure import HayterMSAStructure |
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35 | my_sphere = SphereModel() |
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36 | my_struct = HayterMSAStructure() |
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37 | model1 = MultiplicationModel(my_sphere,my_struct) |
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38 | self.assertEquals(model1.getParam("radius"), |
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39 | my_struct.getParam("radius"), |
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40 | my_sphere.getParam("radius")) |
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41 | model2 = SphereModel() |
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42 | x= 2 |
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43 | |
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44 | model1.setParam("radius", 60) |
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45 | self.assertEqual(model1.getParam("radius"), 60) |
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46 | a = model1.run(x) |
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47 | self.assertEqual(a, 2.5723183020756634e-006) |
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48 | model1.setParam("radius", 70) |
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49 | b = model1.run(x) |
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50 | self.assertNotEqual(a, b) |
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51 | model1.setParam("radius", 60) |
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52 | c = model1.run(x) |
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53 | self.assertEqual(c, 2.5723183020756634e-006) |
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54 | self.assertEqual(a, c) |
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55 | |
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56 | |
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57 | |
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58 | |
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59 | def test_multiplication(self): |
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60 | """ test multiplication model""" |
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61 | from sans.models.MultiplicationModel import MultiplicationModel |
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62 | from sans.models.SphereModel import SphereModel |
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63 | from sans.models.NoStructure import NoStructure |
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64 | model1 = MultiplicationModel(SphereModel(),NoStructure()) |
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65 | model2 = SphereModel() |
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66 | x= 2 |
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67 | a = model1.run(x) |
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68 | |
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69 | b= model2.run(x) |
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70 | self.assertEqual(a, b) |
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71 | model2.setParam("scale", 10) |
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72 | c= model2.run(x) |
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73 | self.assertEqual(c, 10*b) |
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74 | model1.setParam("scale", 10) |
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75 | d= model1.run(x) |
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76 | self.assertEqual(d, 10*a) |
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77 | self.assertEqual(model1.getParam("scale"), 10) |
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78 | |
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79 | |
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80 | def testMultiplicationModel(self): |
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81 | """ Test Multiplication sphere with SquareWellStructure""" |
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82 | ## test details dictionary |
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83 | self.assertEqual(self.model3.details, self.details) |
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84 | |
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85 | ## test parameters list |
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86 | list3= self.model3.getParamList() |
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87 | for item in self.model1.getParamList(): |
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88 | self.assert_(item in list3) |
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89 | for item in self.model2.getParamList(): |
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90 | self.assert_(item in list3) |
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91 | |
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92 | ## test set value for parameters and get paramaters |
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93 | self.model3.setParam("scale", 15) |
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94 | self.assertEqual(self.model3.getParam("scale"), 15) |
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95 | self.model3.setParam("radius", 20) |
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96 | self.assertEqual(self.model3.getParam("radius"), 20) |
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97 | self.model3.setParam("radius.width", 15) |
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98 | self.assertEqual(self.model3.getParam("radius.width"), 15) |
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99 | |
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100 | ## Dispersity |
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101 | list3= self.model3.getDispParamList() |
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102 | self.assertEqual(list3, ['radius.npts', 'radius.nsigmas', 'radius.width']) |
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103 | |
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104 | from sans.models.dispersion_models import ArrayDispersion |
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105 | disp_th = ArrayDispersion() |
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106 | |
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107 | values_th = numpy.zeros(100) |
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108 | weights = numpy.zeros(100) |
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109 | for i in range(100): |
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110 | values_th[i]=(math.pi/99.0*i) |
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111 | weights[i]=(1.0) |
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112 | |
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113 | disp_th.set_weights(values_th, weights) |
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114 | |
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115 | self.model3.set_dispersion('radius', disp_th) |
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116 | |
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117 | val_1d = self.model3.run(math.sqrt(0.0002)) |
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118 | val_2d = self.model3.runXY([0.01,0.01]) |
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119 | |
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120 | self.assertTrue(math.fabs(val_1d-val_2d)/val_1d < 0.02) |
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121 | model4= self.model3.clone() |
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122 | self.assertEqual(model4.getParam("radius"), 20) |
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123 | |
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124 | if __name__ == '__main__': |
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125 | unittest.main() |
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