[b7a25a7e] | 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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