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 | #This test replaces the older utests for multiplicationModel. Aug. 31, 2009. JC |
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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]#Non ASCII charater |
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20 | #details['contrast'] = ['[1/A^2]', None, None] #Non ASCII charater |
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21 | details['background'] = ['[1/cm]', 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 | #Radius of model1.calculate_ER should be equal to the out of Diamfunctions |
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31 | def test_multplication_radius(self): |
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32 | "" "test multiplication model""" |
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33 | from sans.models.MultiplicationModel import MultiplicationModel |
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34 | from sans.models.CylinderModel import CylinderModel |
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35 | from sans.models.HardsphereStructure import HardsphereStructure |
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36 | from sans.models.DiamCylFunc import DiamCylFunc |
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37 | model1 = CylinderModel() |
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38 | modelD = DiamCylFunc() |
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39 | model1.setParam("radius", 20) |
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40 | model1.setParam("length", 400) |
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41 | modelD.setParam("radius", 20) |
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42 | modelD.setParam("length", 400) |
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43 | model2 = HardsphereStructure() |
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44 | model = MultiplicationModel(model1,model2 ) |
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45 | |
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46 | modelDrun = modelD.run(0.1)/2 |
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47 | model2.setParam("volfraction", 0.2) |
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48 | model2.setParam("effect_radius", modelDrun ) |
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49 | |
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50 | #Compare new method with old method |
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51 | |
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52 | self.assertEqual(model.run(0.1), model1.run(0.1)*model2.run(0.1)) |
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53 | |
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54 | #Compare radius from two different calculations. Note: modelD.run(0.0) is DIAMETER |
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55 | self.assertEqual(model1.calculate_ER(), modelD.run(0.1)/2) |
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56 | |
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57 | def test_multplication_radius1(self): |
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58 | "" "test multiplication model""" |
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59 | from sans.models.MultiplicationModel import MultiplicationModel |
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60 | from sans.models.EllipsoidModel import EllipsoidModel |
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61 | from sans.models.HardsphereStructure import HardsphereStructure |
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62 | from sans.models.DiamEllipFunc import DiamEllipFunc |
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63 | model1 = EllipsoidModel() |
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64 | modelD = DiamEllipFunc() |
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65 | model1.setParam("radius_a", 20) |
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66 | model1.setParam("radius_b", 400) |
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67 | modelD.setParam("radius_a", 20) |
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68 | modelD.setParam("radius_b", 400) |
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69 | |
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70 | model2 = HardsphereStructure() |
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71 | model2.setParam("volfraction", 0.2) |
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72 | model = MultiplicationModel(model1,model2 ) |
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73 | model.setParam("radius_a", 20) |
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74 | model.setParam("radius_b", 400) |
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75 | self.assertEqual(model.getParam("radius_a"), 20) |
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76 | model2_in = modelD.run(0.1)/2 |
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77 | model_out = model.run(0.1) |
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78 | |
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79 | model2.setParam("effect_radius", model2_in) |
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80 | |
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81 | #Compare new method with old method |
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82 | self.assertEqual(model_out, model1.run(0.1)*model2.run(0.1)) |
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83 | |
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84 | #Compare radius from two different calculations |
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85 | self.assertEqual(model1.calculate_ER(), model2_in) |
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86 | |
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87 | def test_multiplication(self): |
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88 | """ test multiplication model""" |
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89 | from sans.models.MultiplicationModel import MultiplicationModel |
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90 | from sans.models.SphereModel import SphereModel |
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91 | from sans.models.NoStructure import NoStructure |
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92 | model1 = MultiplicationModel(SphereModel(),NoStructure()) |
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93 | model2 = SphereModel() |
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94 | x= 2 |
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95 | a = model1.run(x) |
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96 | |
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97 | b= model2.run(x) |
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98 | self.assertEqual(a, b) |
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99 | model2.setParam("scale", 10) |
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100 | c= model2.run(x) |
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101 | self.assertEqual(c, 10*b) |
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102 | model1.setParam("scale", 10) |
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103 | d= model1.run(x) |
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104 | self.assertEqual(d, 10*a) |
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105 | self.assertEqual(model1.getParam("scale"), 10) |
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106 | |
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107 | |
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108 | def testMultiplicationModel(self): |
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109 | """ Test Multiplication sphere with SquareWellStructure""" |
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110 | ## test details dictionary |
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111 | #self.assertEqual(self.model3.details, self.details) |
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112 | |
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113 | ## test parameters list |
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114 | list3= self.model3.getParamList() |
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115 | |
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116 | for item in self.model1.getParamList(): |
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117 | self.assert_(item in list3) |
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118 | for item in self.model2.getParamList(): |
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119 | #model3 parameters should not include effect_radius* |
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120 | if not 'effect_radius' in item: |
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121 | self.assert_(item in list3) |
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122 | |
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123 | ## test set value for parameters and get paramaters |
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124 | self.model3.setParam("scale", 15) |
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125 | self.assertEqual(self.model3.getParam("scale"), 15) |
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126 | self.model3.setParam("radius", 20) |
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127 | self.assertEqual(self.model3.getParam("radius"), 20) |
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128 | self.model3.setParam("radius.width", 15) |
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129 | self.assertEqual(self.model3.getParam("radius.width"), 15) |
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130 | |
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131 | ## Dispersity |
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132 | list3= self.model3.getDispParamList() |
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133 | self.assertEqual(list3, ['radius.npts', 'radius.nsigmas', 'radius.width']) |
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134 | |
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135 | from sans.models.dispersion_models import ArrayDispersion |
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136 | disp_th = ArrayDispersion() |
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137 | |
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138 | values_th = numpy.zeros(100) |
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139 | weights = numpy.zeros(100) |
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140 | for i in range(100): |
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141 | values_th[i]=(math.pi/99.0*i) |
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142 | weights[i]=(1.0) |
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143 | |
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144 | disp_th.set_weights(values_th, weights) |
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145 | |
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146 | self.model3.set_dispersion('radius', disp_th) |
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147 | |
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148 | val_1d = self.model3.run(math.sqrt(0.0002)) |
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149 | val_2d = self.model3.runXY([0.01,0.01]) |
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150 | |
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151 | self.assertTrue(math.fabs(val_1d-val_2d)/val_1d < 0.02) |
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152 | model4= self.model3.clone() |
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153 | self.assertEqual(model4.getParam("radius"), 20) |
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154 | |
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155 | if __name__ == '__main__': |
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156 | unittest.main() |
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