1 | """ |
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2 | Unit tests for data manipulations |
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3 | """ |
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4 | #TODO: what happens if you add a Data1D to a Data2D? |
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5 | |
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6 | import unittest |
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7 | import numpy, math |
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8 | from sans.dataloader.loader import Loader |
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9 | from sans.dataloader.data_info import Data1D, Data2D |
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10 | |
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11 | import os.path |
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12 | |
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13 | class data_info_tests(unittest.TestCase): |
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14 | |
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15 | def setUp(self): |
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16 | self.data = Loader().load("cansas1d.xml") |
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17 | |
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18 | def test_clone1D(self): |
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19 | """ |
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20 | Test basic cloning |
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21 | """ |
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22 | clone = self.data.clone_without_data() |
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23 | |
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24 | for i in range(len(self.data.detector)): |
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25 | self.assertEqual(self.data.detector[i].distance, clone.detector[i].distance) |
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26 | |
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27 | |
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28 | class manip_tests(unittest.TestCase): |
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29 | |
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30 | def setUp(self): |
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31 | # Create two data sets to play with |
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32 | x_0 = numpy.ones(5) |
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33 | for i in range(5): |
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34 | x_0[i] = x_0[i]*(i+1.0) |
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35 | |
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36 | y_0 = 2.0*numpy.ones(5) |
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37 | dy_0 = 0.5*numpy.ones(5) |
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38 | self.data = Data1D(x_0, y_0, dy=dy_0) |
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39 | |
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40 | x = self.data.x |
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41 | y = numpy.ones(5) |
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42 | dy = numpy.ones(5) |
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43 | self.data2 = Data1D(x, y, dy=dy) |
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44 | |
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45 | |
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46 | def test_load(self): |
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47 | """ |
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48 | Test whether the test file was loaded properly |
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49 | """ |
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50 | # There should be 5 entries in the file |
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51 | self.assertEqual(len(self.data.x), 5) |
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52 | |
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53 | for i in range(5): |
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54 | # The x values should be from 1 to 5 |
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55 | self.assertEqual(self.data.x[i], float(i+1)) |
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56 | |
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57 | # All y-error values should be 0.5 |
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58 | self.assertEqual(self.data.dy[i], 0.5) |
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59 | |
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60 | # All y values should be 2.0 |
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61 | self.assertEqual(self.data.y[i], 2.0) |
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62 | |
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63 | def test_add(self): |
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64 | result = self.data2+self.data |
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65 | for i in range(5): |
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66 | self.assertEqual(result.y[i], 3.0) |
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67 | self.assertEqual(result.dy[i], math.sqrt(0.5**2+1.0)) |
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68 | |
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69 | def test_sub(self): |
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70 | result = self.data2-self.data |
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71 | for i in range(5): |
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72 | self.assertEqual(result.y[i], -1.0) |
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73 | self.assertEqual(result.dy[i], math.sqrt(0.5**2+1.0)) |
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74 | |
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75 | def test_mul(self): |
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76 | result = self.data2*self.data |
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77 | for i in range(5): |
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78 | self.assertEqual(result.y[i], 2.0) |
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79 | self.assertEqual(result.dy[i], math.sqrt((0.5*1.0)**2+(1.0*2.0)**2)) |
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80 | |
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81 | def test_div(self): |
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82 | result = self.data2/self.data |
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83 | for i in range(5): |
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84 | self.assertEqual(result.y[i], 0.5) |
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85 | self.assertEqual(result.dy[i], math.sqrt((1.0/2.0)**2+(0.5*1.0/4.0)**2)) |
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86 | |
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87 | def test_radd(self): |
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88 | result = self.data+3.0 |
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89 | for i in range(5): |
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90 | self.assertEqual(result.y[i], 5.0) |
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91 | self.assertEqual(result.dy[i], 0.5) |
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92 | |
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93 | result = 3.0+self.data |
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94 | for i in range(5): |
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95 | self.assertEqual(result.y[i], 5.0) |
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96 | self.assertEqual(result.dy[i], 0.5) |
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97 | |
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98 | def test_rsub(self): |
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99 | result = self.data-3.0 |
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100 | for i in range(5): |
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101 | self.assertEqual(result.y[i], -1.0) |
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102 | self.assertEqual(result.dy[i], 0.5) |
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103 | |
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104 | result = 3.0-self.data |
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105 | for i in range(5): |
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106 | self.assertEqual(result.y[i], 1.0) |
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107 | self.assertEqual(result.dy[i], 0.5) |
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108 | |
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109 | def test_rmul(self): |
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110 | result = self.data*3.0 |
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111 | for i in range(5): |
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112 | self.assertEqual(result.y[i], 6.0) |
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113 | self.assertEqual(result.dy[i], 1.5) |
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114 | |
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115 | result = 3.0*self.data |
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116 | for i in range(5): |
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117 | self.assertEqual(result.y[i], 6.0) |
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118 | self.assertEqual(result.dy[i], 1.5) |
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119 | |
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120 | def test_rdiv(self): |
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121 | result = self.data/4.0 |
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122 | for i in range(5): |
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123 | self.assertEqual(result.y[i], 0.5) |
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124 | self.assertEqual(result.dy[i], 0.125) |
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125 | |
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126 | result = 6.0/self.data |
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127 | for i in range(5): |
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128 | self.assertEqual(result.y[i], 3.0) |
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129 | self.assertEqual(result.dy[i], 6.0*0.5/4.0) |
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130 | |
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131 | class manip_2D(unittest.TestCase): |
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132 | |
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133 | def setUp(self): |
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134 | # Create two data sets to play with |
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135 | x_0 = 2.0*numpy.ones(25) |
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136 | dx_0 = 0.5*numpy.ones(25) |
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137 | qx_0 = numpy.arange(25) |
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138 | qy_0 = numpy.arange(25) |
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139 | mask_0 = numpy.zeros(25) |
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140 | dqx_0 = numpy.arange(25)/100 |
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141 | dqy_0 = numpy.arange(25)/100 |
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142 | q_0 = numpy.sqrt(qx_0 * qx_0 + qy_0 * qy_0) |
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143 | self.data = Data2D(x_0, dx_0, qx_0, qy_0, q_0, mask_0, dqx_0, dqy_0) |
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144 | |
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145 | y = numpy.ones(25) |
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146 | dy = numpy.ones(25) |
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147 | qx = numpy.arange(25) |
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148 | qy = numpy.arange(25) |
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149 | mask = numpy.zeros(25) |
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150 | q = numpy.sqrt(qx * qx + qy * qy) |
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151 | self.data2 = Data2D(y, dy, qx, qy, q, mask) |
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152 | |
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153 | |
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154 | def test_load(self): |
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155 | """ |
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156 | Test whether the test file was loaded properly |
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157 | """ |
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158 | # There should be 5 entries in the file |
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159 | self.assertEqual(numpy.size(self.data.data), 25) |
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160 | |
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161 | for i in range(25): |
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162 | # All y-error values should be 0.5 |
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163 | self.assertEqual(self.data.err_data[i], 0.5) |
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164 | |
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165 | # All y values should be 2.0 |
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166 | self.assertEqual(self.data.data[i], 2.0) |
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167 | |
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168 | def test_add(self): |
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169 | result = self.data2+self.data |
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170 | for i in range(25): |
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171 | self.assertEqual(result.data[i], 3.0) |
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172 | self.assertEqual(result.err_data[i], math.sqrt(0.5**2+1.0)) |
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173 | |
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174 | def test_sub(self): |
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175 | result = self.data2-self.data |
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176 | for i in range(25): |
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177 | self.assertEqual(result.data[i], -1.0) |
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178 | self.assertEqual(result.err_data[i], math.sqrt(0.5**2+1.0)) |
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179 | |
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180 | def test_mul(self): |
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181 | result = self.data2*self.data |
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182 | for i in range(25): |
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183 | self.assertEqual(result.data[i], 2.0) |
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184 | self.assertEqual(result.err_data[i], math.sqrt((0.5*1.0)**2+(1.0*2.0)**2)) |
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185 | |
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186 | def test_div(self): |
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187 | result = self.data2/self.data |
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188 | for i in range(25): |
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189 | self.assertEqual(result.data[i], 0.5) |
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190 | self.assertEqual(result.err_data[i], math.sqrt((1.0/2.0)**2+(0.5*1.0/4.0)**2)) |
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191 | |
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192 | def test_radd(self): |
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193 | result = self.data+3.0 |
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194 | for i in range(25): |
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195 | self.assertEqual(result.data[i], 5.0) |
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196 | self.assertEqual(result.err_data[i], 0.5) |
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197 | |
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198 | result = 3.0+self.data |
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199 | for i in range(25): |
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200 | self.assertEqual(result.data[i], 5.0) |
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201 | self.assertEqual(result.err_data[i], 0.5) |
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202 | |
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203 | def test_rsub(self): |
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204 | result = self.data-3.0 |
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205 | for i in range(25): |
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206 | self.assertEqual(result.data[i], -1.0) |
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207 | self.assertEqual(result.err_data[i], 0.5) |
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208 | |
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209 | result = 3.0-self.data |
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210 | for i in range(25): |
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211 | self.assertEqual(result.data[i], 1.0) |
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212 | self.assertEqual(result.err_data[i], 0.5) |
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213 | |
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214 | def test_rmul(self): |
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215 | result = self.data*3.0 |
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216 | for i in range(25): |
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217 | self.assertEqual(result.data[i], 6.0) |
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218 | self.assertEqual(result.err_data[i], 1.5) |
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219 | |
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220 | result = 3.0*self.data |
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221 | for i in range(25): |
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222 | self.assertEqual(result.data[i], 6.0) |
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223 | self.assertEqual(result.err_data[i], 1.5) |
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224 | |
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225 | def test_rdiv(self): |
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226 | result = self.data/4.0 |
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227 | for i in range(25): |
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228 | self.assertEqual(result.data[i], 0.5) |
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229 | self.assertEqual(result.err_data[i], 0.125) |
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230 | |
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231 | result = 6.0/self.data |
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232 | for i in range(25): |
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233 | self.assertEqual(result.data[i], 3.0) |
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234 | self.assertEqual(result.err_data[i], 6.0*0.5/4.0) |
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235 | |
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236 | |
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237 | if __name__ == '__main__': |
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238 | unittest.main() |
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239 | |
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