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, Float |
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6 | from math import sqrt, pi |
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7 | import tempfile |
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8 | |
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9 | from util import * |
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10 | from config import epsilon |
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11 | from data_manager import timefile2netcdf |
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12 | |
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13 | from utilities.numerical_tools import INF |
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14 | |
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15 | def test_function(x, y): |
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16 | return x+y |
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17 | |
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18 | class Test_Util(unittest.TestCase): |
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19 | def setUp(self): |
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20 | pass |
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21 | |
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22 | def tearDown(self): |
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23 | pass |
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24 | |
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25 | |
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26 | |
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27 | |
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28 | #Geometric |
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29 | #def test_distance(self): |
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30 | # from util import distance# |
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31 | # |
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32 | # self.failUnless( distance([4,2],[7,6]) == 5.0, |
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33 | # 'Distance is wrong!') |
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34 | # self.failUnless( allclose(distance([7,6],[9,8]), 2.82842712475), |
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35 | # 'distance is wrong!') |
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36 | # self.failUnless( allclose(distance([9,8],[4,2]), 7.81024967591), |
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37 | # 'distance is wrong!') |
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38 | # |
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39 | # self.failUnless( distance([9,8],[4,2]) == distance([4,2],[9,8]), |
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40 | # 'distance is wrong!') |
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41 | |
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42 | |
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43 | def test_file_function_time1(self): |
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44 | """Test that File function interpolates correctly |
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45 | between given times. No x,y dependency here. |
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46 | """ |
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47 | |
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48 | #Write file |
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49 | import os, time |
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50 | from config import time_format |
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51 | from math import sin, pi |
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52 | |
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53 | #Typical ASCII file |
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54 | finaltime = 1200 |
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55 | filename = 'test_file_function' |
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56 | fid = open(filename + '.txt', 'w') |
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57 | start = time.mktime(time.strptime('2000', '%Y')) |
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58 | dt = 60 #One minute intervals |
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59 | t = 0.0 |
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60 | while t <= finaltime: |
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61 | t_string = time.strftime(time_format, time.gmtime(t+start)) |
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62 | fid.write('%s, %f %f %f\n' %(t_string, 2*t, t**2, sin(t*pi/600))) |
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63 | t += dt |
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64 | |
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65 | fid.close() |
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66 | |
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67 | #Convert ASCII file to NetCDF (Which is what we really like!) |
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68 | timefile2netcdf(filename) |
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69 | |
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70 | |
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71 | #Create file function from time series |
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72 | F = file_function(filename + '.tms', |
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73 | quantities = ['Attribute0', |
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74 | 'Attribute1', |
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75 | 'Attribute2']) |
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76 | |
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77 | #Now try interpolation |
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78 | for i in range(20): |
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79 | t = i*10 |
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80 | q = F(t) |
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81 | |
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82 | #Exact linear intpolation |
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83 | assert allclose(q[0], 2*t) |
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84 | if i%6 == 0: |
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85 | assert allclose(q[1], t**2) |
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86 | assert allclose(q[2], sin(t*pi/600)) |
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87 | |
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88 | #Check non-exact |
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89 | |
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90 | t = 90 #Halfway between 60 and 120 |
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91 | q = F(t) |
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92 | assert allclose( (120**2 + 60**2)/2, q[1] ) |
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93 | assert allclose( (sin(120*pi/600) + sin(60*pi/600))/2, q[2] ) |
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94 | |
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95 | |
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96 | t = 100 #Two thirds of the way between between 60 and 120 |
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97 | q = F(t) |
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98 | assert allclose( 2*120**2/3 + 60**2/3, q[1] ) |
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99 | assert allclose( 2*sin(120*pi/600)/3 + sin(60*pi/600)/3, q[2] ) |
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100 | |
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101 | os.remove(filename + '.txt') |
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102 | os.remove(filename + '.tms') |
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103 | |
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104 | |
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105 | |
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106 | def test_spatio_temporal_file_function(self): |
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107 | """Test that spatio temporal file function performs the correct |
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108 | interpolations in both time and space |
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109 | NetCDF version (x,y,t dependency) |
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110 | """ |
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111 | import time |
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112 | |
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113 | #Create sww file of simple propagation from left to right |
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114 | #through rectangular domain |
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115 | from shallow_water import Domain, Dirichlet_boundary |
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116 | from mesh_factory import rectangular |
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117 | from Numeric import take, concatenate, reshape |
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118 | |
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119 | #Create basic mesh and shallow water domain |
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120 | points, vertices, boundary = rectangular(3, 3) |
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121 | domain1 = Domain(points, vertices, boundary) |
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122 | |
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123 | from utilities.numerical_tools import mean |
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124 | domain1.reduction = mean |
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125 | domain1.smooth = True #NOTE: Mimic sww output where each vertex has |
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126 | # only one value. |
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127 | |
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128 | domain1.default_order = 2 |
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129 | domain1.store = True |
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130 | domain1.set_datadir('.') |
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131 | domain1.set_name('spatio_temporal_boundary_source_%d' %(id(self))) |
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132 | domain1.quantities_to_be_stored = ['stage', 'xmomentum', 'ymomentum'] |
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133 | |
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134 | #Bed-slope, friction and IC at vertices (and interpolated elsewhere) |
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135 | domain1.set_quantity('elevation', 0) |
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136 | domain1.set_quantity('friction', 0) |
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137 | domain1.set_quantity('stage', 0) |
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138 | |
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139 | # Boundary conditions |
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140 | B0 = Dirichlet_boundary([0,0,0]) |
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141 | B6 = Dirichlet_boundary([0.6,0,0]) |
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142 | domain1.set_boundary({'left': B6, 'top': B6, 'right': B0, 'bottom': B0}) |
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143 | domain1.check_integrity() |
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144 | |
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145 | finaltime = 8 |
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146 | #Evolution |
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147 | for t in domain1.evolve(yieldstep = 0.1, finaltime = finaltime): |
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148 | pass |
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149 | #domain1.write_time() |
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150 | |
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151 | |
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152 | #Now read data from sww and check |
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153 | from Scientific.IO.NetCDF import NetCDFFile |
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154 | filename = domain1.get_name() + '.' + domain1.format |
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155 | fid = NetCDFFile(filename) |
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156 | |
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157 | x = fid.variables['x'][:] |
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158 | y = fid.variables['y'][:] |
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159 | stage = fid.variables['stage'][:] |
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160 | xmomentum = fid.variables['xmomentum'][:] |
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161 | ymomentum = fid.variables['ymomentum'][:] |
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162 | time = fid.variables['time'][:] |
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163 | |
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164 | #Take stage vertex values at last timestep on diagonal |
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165 | #Diagonal is identified by vertices: 0, 5, 10, 15 |
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166 | |
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167 | timestep = len(time)-1 #Last timestep |
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168 | d_stage = reshape(take(stage[timestep, :], [0,5,10,15]), (4,1)) |
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169 | d_uh = reshape(take(xmomentum[timestep, :], [0,5,10,15]), (4,1)) |
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170 | d_vh = reshape(take(ymomentum[timestep, :], [0,5,10,15]), (4,1)) |
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171 | D = concatenate( (d_stage, d_uh, d_vh), axis=1) |
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172 | |
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173 | #Reference interpolated values at midpoints on diagonal at |
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174 | #this timestep are |
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175 | r0 = (D[0] + D[1])/2 |
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176 | r1 = (D[1] + D[2])/2 |
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177 | r2 = (D[2] + D[3])/2 |
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178 | |
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179 | #And the midpoints are found now |
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180 | Dx = take(reshape(x, (16,1)), [0,5,10,15]) |
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181 | Dy = take(reshape(y, (16,1)), [0,5,10,15]) |
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182 | |
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183 | diag = concatenate( (Dx, Dy), axis=1) |
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184 | d_midpoints = (diag[1:] + diag[:-1])/2 |
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185 | |
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186 | #Let us see if the file function can find the correct |
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187 | #values at the midpoints at the last timestep: |
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188 | f = file_function(filename, domain1, |
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189 | interpolation_points = d_midpoints) |
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190 | |
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191 | q = f(timestep/10., point_id=0); assert allclose(r0, q) |
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192 | q = f(timestep/10., point_id=1); assert allclose(r1, q) |
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193 | q = f(timestep/10., point_id=2); assert allclose(r2, q) |
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194 | |
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195 | |
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196 | ################## |
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197 | #Now do the same for the first timestep |
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198 | |
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199 | timestep = 0 #First timestep |
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200 | d_stage = reshape(take(stage[timestep, :], [0,5,10,15]), (4,1)) |
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201 | d_uh = reshape(take(xmomentum[timestep, :], [0,5,10,15]), (4,1)) |
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202 | d_vh = reshape(take(ymomentum[timestep, :], [0,5,10,15]), (4,1)) |
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203 | D = concatenate( (d_stage, d_uh, d_vh), axis=1) |
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204 | |
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205 | #Reference interpolated values at midpoints on diagonal at |
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206 | #this timestep are |
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207 | r0 = (D[0] + D[1])/2 |
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208 | r1 = (D[1] + D[2])/2 |
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209 | r2 = (D[2] + D[3])/2 |
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210 | |
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211 | #Let us see if the file function can find the correct |
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212 | #values |
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213 | q = f(0, point_id=0); assert allclose(r0, q) |
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214 | q = f(0, point_id=1); assert allclose(r1, q) |
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215 | q = f(0, point_id=2); assert allclose(r2, q) |
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216 | |
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217 | |
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218 | ################## |
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219 | #Now do it again for a timestep in the middle |
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220 | |
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221 | timestep = 33 |
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222 | d_stage = reshape(take(stage[timestep, :], [0,5,10,15]), (4,1)) |
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223 | d_uh = reshape(take(xmomentum[timestep, :], [0,5,10,15]), (4,1)) |
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224 | d_vh = reshape(take(ymomentum[timestep, :], [0,5,10,15]), (4,1)) |
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225 | D = concatenate( (d_stage, d_uh, d_vh), axis=1) |
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226 | |
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227 | #Reference interpolated values at midpoints on diagonal at |
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228 | #this timestep are |
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229 | r0 = (D[0] + D[1])/2 |
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230 | r1 = (D[1] + D[2])/2 |
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231 | r2 = (D[2] + D[3])/2 |
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232 | |
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233 | q = f(timestep/10., point_id=0); assert allclose(r0, q) |
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234 | q = f(timestep/10., point_id=1); assert allclose(r1, q) |
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235 | q = f(timestep/10., point_id=2); assert allclose(r2, q) |
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236 | |
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237 | |
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238 | ################## |
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239 | #Now check temporal interpolation |
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240 | #Halfway between timestep 15 and 16 |
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241 | |
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242 | timestep = 15 |
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243 | d_stage = reshape(take(stage[timestep, :], [0,5,10,15]), (4,1)) |
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244 | d_uh = reshape(take(xmomentum[timestep, :], [0,5,10,15]), (4,1)) |
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245 | d_vh = reshape(take(ymomentum[timestep, :], [0,5,10,15]), (4,1)) |
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246 | D = concatenate( (d_stage, d_uh, d_vh), axis=1) |
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247 | |
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248 | #Reference interpolated values at midpoints on diagonal at |
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249 | #this timestep are |
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250 | r0_0 = (D[0] + D[1])/2 |
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251 | r1_0 = (D[1] + D[2])/2 |
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252 | r2_0 = (D[2] + D[3])/2 |
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253 | |
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254 | # |
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255 | timestep = 16 |
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256 | d_stage = reshape(take(stage[timestep, :], [0,5,10,15]), (4,1)) |
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257 | d_uh = reshape(take(xmomentum[timestep, :], [0,5,10,15]), (4,1)) |
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258 | d_vh = reshape(take(ymomentum[timestep, :], [0,5,10,15]), (4,1)) |
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259 | D = concatenate( (d_stage, d_uh, d_vh), axis=1) |
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260 | |
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261 | #Reference interpolated values at midpoints on diagonal at |
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262 | #this timestep are |
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263 | r0_1 = (D[0] + D[1])/2 |
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264 | r1_1 = (D[1] + D[2])/2 |
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265 | r2_1 = (D[2] + D[3])/2 |
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266 | |
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267 | # The reference values are |
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268 | r0 = (r0_0 + r0_1)/2 |
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269 | r1 = (r1_0 + r1_1)/2 |
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270 | r2 = (r2_0 + r2_1)/2 |
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271 | |
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272 | q = f((timestep - 0.5)/10., point_id=0); assert allclose(r0, q) |
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273 | q = f((timestep - 0.5)/10., point_id=1); assert allclose(r1, q) |
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274 | q = f((timestep - 0.5)/10., point_id=2); assert allclose(r2, q) |
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275 | |
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276 | ################## |
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277 | #Finally check interpolation 2 thirds of the way |
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278 | #between timestep 15 and 16 |
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279 | |
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280 | # The reference values are |
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281 | r0 = (r0_0 + 2*r0_1)/3 |
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282 | r1 = (r1_0 + 2*r1_1)/3 |
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283 | r2 = (r2_0 + 2*r2_1)/3 |
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284 | |
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285 | #And the file function gives |
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286 | q = f((timestep - 1.0/3)/10., point_id=0); assert allclose(r0, q) |
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287 | q = f((timestep - 1.0/3)/10., point_id=1); assert allclose(r1, q) |
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288 | q = f((timestep - 1.0/3)/10., point_id=2); assert allclose(r2, q) |
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289 | |
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290 | fid.close() |
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291 | import os |
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292 | os.remove(filename) |
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293 | |
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294 | |
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295 | |
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296 | def test_spatio_temporal_file_function_different_origin(self): |
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297 | """Test that spatio temporal file function performs the correct |
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298 | interpolations in both time and space where space is offset by |
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299 | xllcorner and yllcorner |
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300 | NetCDF version (x,y,t dependency) |
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301 | """ |
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302 | import time |
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303 | |
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304 | #Create sww file of simple propagation from left to right |
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305 | #through rectangular domain |
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306 | from shallow_water import Domain, Dirichlet_boundary |
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307 | from mesh_factory import rectangular |
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308 | from Numeric import take, concatenate, reshape |
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309 | |
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310 | |
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311 | from coordinate_transforms.geo_reference import Geo_reference |
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312 | xllcorner = 2048 |
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313 | yllcorner = 11000 |
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314 | zone = 2 |
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315 | |
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316 | #Create basic mesh and shallow water domain |
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317 | points, vertices, boundary = rectangular(3, 3) |
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318 | domain1 = Domain(points, vertices, boundary, |
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319 | geo_reference = Geo_reference(xllcorner = xllcorner, |
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320 | yllcorner = yllcorner)) |
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321 | |
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322 | |
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323 | from utilities.numerical_tools import mean |
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324 | domain1.reduction = mean |
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325 | domain1.smooth = True #NOTE: Mimic sww output where each vertex has |
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326 | # only one value. |
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327 | |
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328 | domain1.default_order = 2 |
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329 | domain1.store = True |
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330 | domain1.set_datadir('.') |
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331 | domain1.set_name('spatio_temporal_boundary_source_%d' %(id(self))) |
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332 | domain1.quantities_to_be_stored = ['stage', 'xmomentum', 'ymomentum'] |
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333 | |
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334 | #Bed-slope, friction and IC at vertices (and interpolated elsewhere) |
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335 | domain1.set_quantity('elevation', 0) |
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336 | domain1.set_quantity('friction', 0) |
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337 | domain1.set_quantity('stage', 0) |
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338 | |
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339 | # Boundary conditions |
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340 | B0 = Dirichlet_boundary([0,0,0]) |
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341 | B6 = Dirichlet_boundary([0.6,0,0]) |
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342 | domain1.set_boundary({'left': B6, 'top': B6, 'right': B0, 'bottom': B0}) |
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343 | domain1.check_integrity() |
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344 | |
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345 | finaltime = 8 |
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346 | #Evolution |
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347 | for t in domain1.evolve(yieldstep = 0.1, finaltime = finaltime): |
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348 | pass |
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349 | #domain1.write_time() |
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350 | |
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351 | |
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352 | #Now read data from sww and check |
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353 | from Scientific.IO.NetCDF import NetCDFFile |
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354 | filename = domain1.get_name() + '.' + domain1.format |
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355 | fid = NetCDFFile(filename) |
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356 | |
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357 | x = fid.variables['x'][:] |
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358 | y = fid.variables['y'][:] |
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359 | stage = fid.variables['stage'][:] |
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360 | xmomentum = fid.variables['xmomentum'][:] |
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361 | ymomentum = fid.variables['ymomentum'][:] |
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362 | time = fid.variables['time'][:] |
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363 | |
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364 | #Take stage vertex values at last timestep on diagonal |
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365 | #Diagonal is identified by vertices: 0, 5, 10, 15 |
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366 | |
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367 | timestep = len(time)-1 #Last timestep |
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368 | d_stage = reshape(take(stage[timestep, :], [0,5,10,15]), (4,1)) |
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369 | d_uh = reshape(take(xmomentum[timestep, :], [0,5,10,15]), (4,1)) |
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370 | d_vh = reshape(take(ymomentum[timestep, :], [0,5,10,15]), (4,1)) |
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371 | D = concatenate( (d_stage, d_uh, d_vh), axis=1) |
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372 | |
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373 | #Reference interpolated values at midpoints on diagonal at |
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374 | #this timestep are |
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375 | r0 = (D[0] + D[1])/2 |
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376 | r1 = (D[1] + D[2])/2 |
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377 | r2 = (D[2] + D[3])/2 |
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378 | |
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379 | #And the midpoints are found now |
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380 | Dx = take(reshape(x, (16,1)), [0,5,10,15]) |
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381 | Dy = take(reshape(y, (16,1)), [0,5,10,15]) |
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382 | |
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383 | diag = concatenate( (Dx, Dy), axis=1) |
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384 | d_midpoints = (diag[1:] + diag[:-1])/2 |
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385 | |
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386 | |
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387 | #Adjust for georef - make interpolation points absolute |
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388 | d_midpoints[:,0] += xllcorner |
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389 | d_midpoints[:,1] += yllcorner |
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390 | |
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391 | #Let us see if the file function can find the correct |
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392 | #values at the midpoints at the last timestep: |
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393 | f = file_function(filename, domain1, |
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394 | interpolation_points = d_midpoints) |
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395 | |
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396 | q = f(timestep/10., point_id=0); assert allclose(r0, q) |
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397 | q = f(timestep/10., point_id=1); assert allclose(r1, q) |
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398 | q = f(timestep/10., point_id=2); assert allclose(r2, q) |
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399 | |
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400 | |
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401 | ################## |
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402 | #Now do the same for the first timestep |
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403 | |
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404 | timestep = 0 #First timestep |
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405 | d_stage = reshape(take(stage[timestep, :], [0,5,10,15]), (4,1)) |
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406 | d_uh = reshape(take(xmomentum[timestep, :], [0,5,10,15]), (4,1)) |
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407 | d_vh = reshape(take(ymomentum[timestep, :], [0,5,10,15]), (4,1)) |
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408 | D = concatenate( (d_stage, d_uh, d_vh), axis=1) |
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409 | |
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410 | #Reference interpolated values at midpoints on diagonal at |
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411 | #this timestep are |
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412 | r0 = (D[0] + D[1])/2 |
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413 | r1 = (D[1] + D[2])/2 |
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414 | r2 = (D[2] + D[3])/2 |
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415 | |
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416 | #Let us see if the file function can find the correct |
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417 | #values |
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418 | q = f(0, point_id=0); assert allclose(r0, q) |
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419 | q = f(0, point_id=1); assert allclose(r1, q) |
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420 | q = f(0, point_id=2); assert allclose(r2, q) |
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421 | |
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422 | |
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423 | ################## |
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424 | #Now do it again for a timestep in the middle |
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425 | |
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426 | timestep = 33 |
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427 | d_stage = reshape(take(stage[timestep, :], [0,5,10,15]), (4,1)) |
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428 | d_uh = reshape(take(xmomentum[timestep, :], [0,5,10,15]), (4,1)) |
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429 | d_vh = reshape(take(ymomentum[timestep, :], [0,5,10,15]), (4,1)) |
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430 | D = concatenate( (d_stage, d_uh, d_vh), axis=1) |
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431 | |
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432 | #Reference interpolated values at midpoints on diagonal at |
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433 | #this timestep are |
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434 | r0 = (D[0] + D[1])/2 |
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435 | r1 = (D[1] + D[2])/2 |
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436 | r2 = (D[2] + D[3])/2 |
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437 | |
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438 | q = f(timestep/10., point_id=0); assert allclose(r0, q) |
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439 | q = f(timestep/10., point_id=1); assert allclose(r1, q) |
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440 | q = f(timestep/10., point_id=2); assert allclose(r2, q) |
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441 | |
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442 | |
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443 | ################## |
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444 | #Now check temporal interpolation |
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445 | #Halfway between timestep 15 and 16 |
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446 | |
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447 | timestep = 15 |
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448 | d_stage = reshape(take(stage[timestep, :], [0,5,10,15]), (4,1)) |
---|
449 | d_uh = reshape(take(xmomentum[timestep, :], [0,5,10,15]), (4,1)) |
---|
450 | d_vh = reshape(take(ymomentum[timestep, :], [0,5,10,15]), (4,1)) |
---|
451 | D = concatenate( (d_stage, d_uh, d_vh), axis=1) |
---|
452 | |
---|
453 | #Reference interpolated values at midpoints on diagonal at |
---|
454 | #this timestep are |
---|
455 | r0_0 = (D[0] + D[1])/2 |
---|
456 | r1_0 = (D[1] + D[2])/2 |
---|
457 | r2_0 = (D[2] + D[3])/2 |
---|
458 | |
---|
459 | # |
---|
460 | timestep = 16 |
---|
461 | d_stage = reshape(take(stage[timestep, :], [0,5,10,15]), (4,1)) |
---|
462 | d_uh = reshape(take(xmomentum[timestep, :], [0,5,10,15]), (4,1)) |
---|
463 | d_vh = reshape(take(ymomentum[timestep, :], [0,5,10,15]), (4,1)) |
---|
464 | D = concatenate( (d_stage, d_uh, d_vh), axis=1) |
---|
465 | |
---|
466 | #Reference interpolated values at midpoints on diagonal at |
---|
467 | #this timestep are |
---|
468 | r0_1 = (D[0] + D[1])/2 |
---|
469 | r1_1 = (D[1] + D[2])/2 |
---|
470 | r2_1 = (D[2] + D[3])/2 |
---|
471 | |
---|
472 | # The reference values are |
---|
473 | r0 = (r0_0 + r0_1)/2 |
---|
474 | r1 = (r1_0 + r1_1)/2 |
---|
475 | r2 = (r2_0 + r2_1)/2 |
---|
476 | |
---|
477 | q = f((timestep - 0.5)/10., point_id=0); assert allclose(r0, q) |
---|
478 | q = f((timestep - 0.5)/10., point_id=1); assert allclose(r1, q) |
---|
479 | q = f((timestep - 0.5)/10., point_id=2); assert allclose(r2, q) |
---|
480 | |
---|
481 | ################## |
---|
482 | #Finally check interpolation 2 thirds of the way |
---|
483 | #between timestep 15 and 16 |
---|
484 | |
---|
485 | # The reference values are |
---|
486 | r0 = (r0_0 + 2*r0_1)/3 |
---|
487 | r1 = (r1_0 + 2*r1_1)/3 |
---|
488 | r2 = (r2_0 + 2*r2_1)/3 |
---|
489 | |
---|
490 | #And the file function gives |
---|
491 | q = f((timestep - 1.0/3)/10., point_id=0); assert allclose(r0, q) |
---|
492 | q = f((timestep - 1.0/3)/10., point_id=1); assert allclose(r1, q) |
---|
493 | q = f((timestep - 1.0/3)/10., point_id=2); assert allclose(r2, q) |
---|
494 | |
---|
495 | fid.close() |
---|
496 | import os |
---|
497 | os.remove(filename) |
---|
498 | |
---|
499 | |
---|
500 | |
---|
501 | |
---|
502 | def qtest_spatio_temporal_file_function_time(self): |
---|
503 | """Test that File function interpolates correctly |
---|
504 | between given times. |
---|
505 | NetCDF version (x,y,t dependency) |
---|
506 | """ |
---|
507 | |
---|
508 | #Create NetCDF (sww) file to be read |
---|
509 | # x: 0, 5, 10, 15 |
---|
510 | # y: -20, -10, 0, 10 |
---|
511 | # t: 0, 60, 120, ...., 1200 |
---|
512 | # |
---|
513 | # test quantities (arbitrary but non-trivial expressions): |
---|
514 | # |
---|
515 | # stage = 3*x - y**2 + 2*t |
---|
516 | # xmomentum = exp( -((x-7)**2 + (y+5)**2)/20 ) * t**2 |
---|
517 | # ymomentum = x**2 + y**2 * sin(t*pi/600) |
---|
518 | |
---|
519 | #NOTE: Nice test that may render some of the others redundant. |
---|
520 | |
---|
521 | import os, time |
---|
522 | from config import time_format |
---|
523 | from Numeric import sin, pi, exp |
---|
524 | from mesh_factory import rectangular |
---|
525 | from shallow_water import Domain |
---|
526 | import data_manager |
---|
527 | |
---|
528 | finaltime = 1200 |
---|
529 | filename = 'test_file_function' |
---|
530 | |
---|
531 | #Create a domain to hold test grid |
---|
532 | #(0:15, -20:10) |
---|
533 | points, vertices, boundary =\ |
---|
534 | rectangular(4, 4, 15, 30, origin = (0, -20)) |
---|
535 | print "points", points |
---|
536 | |
---|
537 | #print 'Number of elements', len(vertices) |
---|
538 | domain = Domain(points, vertices, boundary) |
---|
539 | domain.smooth = False |
---|
540 | domain.default_order = 2 |
---|
541 | domain.set_datadir('.') |
---|
542 | domain.set_name(filename) |
---|
543 | domain.store = True |
---|
544 | domain.format = 'sww' #Native netcdf visualisation format |
---|
545 | |
---|
546 | #print points |
---|
547 | start = time.mktime(time.strptime('2000', '%Y')) |
---|
548 | domain.starttime = start |
---|
549 | |
---|
550 | |
---|
551 | #Store structure |
---|
552 | domain.initialise_storage() |
---|
553 | |
---|
554 | #Compute artificial time steps and store |
---|
555 | dt = 60 #One minute intervals |
---|
556 | t = 0.0 |
---|
557 | while t <= finaltime: |
---|
558 | #Compute quantities |
---|
559 | f1 = lambda x,y: 3*x - y**2 + 2*t + 4 |
---|
560 | domain.set_quantity('stage', f1) |
---|
561 | |
---|
562 | f2 = lambda x,y: x+y+t**2 |
---|
563 | domain.set_quantity('xmomentum', f2) |
---|
564 | |
---|
565 | f3 = lambda x,y: x**2 + y**2 * sin(t*pi/600) |
---|
566 | domain.set_quantity('ymomentum', f3) |
---|
567 | |
---|
568 | #Store and advance time |
---|
569 | domain.time = t |
---|
570 | domain.store_timestep(domain.conserved_quantities) |
---|
571 | t += dt |
---|
572 | |
---|
573 | |
---|
574 | interpolation_points = [[0,-20], [1,0], [0,1], [1.1, 3.14], [10,-12.5]] |
---|
575 | |
---|
576 | #Deliberately set domain.starttime to too early |
---|
577 | domain.starttime = start - 1 |
---|
578 | |
---|
579 | #Create file function |
---|
580 | F = file_function(filename + '.sww', domain, |
---|
581 | quantities = domain.conserved_quantities, |
---|
582 | interpolation_points = interpolation_points) |
---|
583 | |
---|
584 | #Check that FF updates fixes domain starttime |
---|
585 | assert allclose(domain.starttime, start) |
---|
586 | |
---|
587 | #Check that domain.starttime isn't updated if later |
---|
588 | domain.starttime = start + 1 |
---|
589 | F = file_function(filename + '.sww', domain, |
---|
590 | quantities = domain.conserved_quantities, |
---|
591 | interpolation_points = interpolation_points) |
---|
592 | assert allclose(domain.starttime, start+1) |
---|
593 | domain.starttime = start |
---|
594 | |
---|
595 | |
---|
596 | #Check linear interpolation in time |
---|
597 | F = file_function(filename + '.sww', domain, |
---|
598 | quantities = domain.conserved_quantities, |
---|
599 | interpolation_points = interpolation_points) |
---|
600 | for id in range(len(interpolation_points)): |
---|
601 | x = interpolation_points[id][0] |
---|
602 | y = interpolation_points[id][1] |
---|
603 | |
---|
604 | for i in range(20): |
---|
605 | t = i*10 |
---|
606 | k = i%6 |
---|
607 | |
---|
608 | if k == 0: |
---|
609 | q0 = F(t, point_id=id) |
---|
610 | q1 = F(t+60, point_id=id) |
---|
611 | |
---|
612 | if q0 == INF: |
---|
613 | actual = q0 |
---|
614 | else: |
---|
615 | actual = (k*q1 + (6-k)*q0)/6 |
---|
616 | q = F(t, point_id=id) |
---|
617 | #print i, k, t, q |
---|
618 | #print ' ', q0 |
---|
619 | #print ' ', q1 |
---|
620 | print "q",q |
---|
621 | print "actual", actual |
---|
622 | #print |
---|
623 | if q0 == INF: |
---|
624 | self.failUnless( q == actual, 'Fail!') |
---|
625 | else: |
---|
626 | assert allclose(q, actual) |
---|
627 | |
---|
628 | |
---|
629 | #Another check of linear interpolation in time |
---|
630 | for id in range(len(interpolation_points)): |
---|
631 | q60 = F(60, point_id=id) |
---|
632 | q120 = F(120, point_id=id) |
---|
633 | |
---|
634 | t = 90 #Halfway between 60 and 120 |
---|
635 | q = F(t, point_id=id) |
---|
636 | assert allclose( (q120+q60)/2, q ) |
---|
637 | |
---|
638 | t = 100 #Two thirds of the way between between 60 and 120 |
---|
639 | q = F(t, point_id=id) |
---|
640 | assert allclose(q60/3 + 2*q120/3, q) |
---|
641 | |
---|
642 | |
---|
643 | |
---|
644 | #Check that domain.starttime isn't updated if later than file starttime but earlier |
---|
645 | #than file end time |
---|
646 | delta = 23 |
---|
647 | domain.starttime = start + delta |
---|
648 | F = file_function(filename + '.sww', domain, |
---|
649 | quantities = domain.conserved_quantities, |
---|
650 | interpolation_points = interpolation_points) |
---|
651 | assert allclose(domain.starttime, start+delta) |
---|
652 | |
---|
653 | |
---|
654 | |
---|
655 | |
---|
656 | #Now try interpolation with delta offset |
---|
657 | for id in range(len(interpolation_points)): |
---|
658 | x = interpolation_points[id][0] |
---|
659 | y = interpolation_points[id][1] |
---|
660 | |
---|
661 | for i in range(20): |
---|
662 | t = i*10 |
---|
663 | k = i%6 |
---|
664 | |
---|
665 | if k == 0: |
---|
666 | q0 = F(t-delta, point_id=id) |
---|
667 | q1 = F(t+60-delta, point_id=id) |
---|
668 | |
---|
669 | q = F(t-delta, point_id=id) |
---|
670 | assert allclose(q, (k*q1 + (6-k)*q0)/6) |
---|
671 | |
---|
672 | |
---|
673 | os.remove(filename + '.sww') |
---|
674 | |
---|
675 | |
---|
676 | |
---|
677 | def xtest_spatio_temporal_file_function_time(self): |
---|
678 | # Test that File function interpolates correctly |
---|
679 | # When some points are outside the mesh |
---|
680 | |
---|
681 | import os, time |
---|
682 | from config import time_format |
---|
683 | from Numeric import sin, pi, exp |
---|
684 | from mesh_factory import rectangular |
---|
685 | from shallow_water import Domain |
---|
686 | import data_manager |
---|
687 | from pmesh.mesh_interface import create_mesh_from_regions |
---|
688 | finaltime = 1200 |
---|
689 | |
---|
690 | filename = tempfile.mktemp() |
---|
691 | #print "filename",filename |
---|
692 | filename = 'test_file_function' |
---|
693 | |
---|
694 | meshfilename = tempfile.mktemp(".tsh") |
---|
695 | |
---|
696 | boundary_tags = {'walls':[0,1],'bom':[2]} |
---|
697 | |
---|
698 | polygon_absolute = [[0,-20],[10,-20],[10,15],[-20,15]] |
---|
699 | |
---|
700 | create_mesh_from_regions(polygon_absolute, |
---|
701 | boundary_tags, |
---|
702 | 10000000, |
---|
703 | filename=meshfilename) |
---|
704 | domain = Domain(mesh_filename=meshfilename) |
---|
705 | domain.smooth = False |
---|
706 | domain.default_order = 2 |
---|
707 | domain.set_datadir('.') |
---|
708 | domain.set_name(filename) |
---|
709 | domain.store = True |
---|
710 | domain.format = 'sww' #Native netcdf visualisation format |
---|
711 | |
---|
712 | #print points |
---|
713 | start = time.mktime(time.strptime('2000', '%Y')) |
---|
714 | domain.starttime = start |
---|
715 | |
---|
716 | |
---|
717 | #Store structure |
---|
718 | domain.initialise_storage() |
---|
719 | |
---|
720 | #Compute artificial time steps and store |
---|
721 | dt = 60 #One minute intervals |
---|
722 | t = 0.0 |
---|
723 | while t <= finaltime: |
---|
724 | #Compute quantities |
---|
725 | f1 = lambda x,y: 3*x - y**2 + 2*t + 4 |
---|
726 | domain.set_quantity('stage', f1) |
---|
727 | |
---|
728 | f2 = lambda x,y: x+y+t**2 |
---|
729 | domain.set_quantity('xmomentum', f2) |
---|
730 | |
---|
731 | f3 = lambda x,y: x**2 + y**2 * sin(t*pi/600) |
---|
732 | domain.set_quantity('ymomentum', f3) |
---|
733 | |
---|
734 | #Store and advance time |
---|
735 | domain.time = t |
---|
736 | domain.store_timestep(domain.conserved_quantities) |
---|
737 | t += dt |
---|
738 | |
---|
739 | interpolation_points = [[1,0]] |
---|
740 | interpolation_points = [[100,1000]] |
---|
741 | |
---|
742 | interpolation_points = [[0,-20], [1,0], [0,1], [1.1, 3.14], [10,-12.5], |
---|
743 | [78787,78787],[7878,3432]] |
---|
744 | |
---|
745 | #Deliberately set domain.starttime to too early |
---|
746 | domain.starttime = start - 1 |
---|
747 | |
---|
748 | #Create file function |
---|
749 | F = file_function(filename + '.sww', domain, |
---|
750 | quantities = domain.conserved_quantities, |
---|
751 | interpolation_points = interpolation_points) |
---|
752 | |
---|
753 | #Check that FF updates fixes domain starttime |
---|
754 | assert allclose(domain.starttime, start) |
---|
755 | |
---|
756 | #Check that domain.starttime isn't updated if later |
---|
757 | domain.starttime = start + 1 |
---|
758 | F = file_function(filename + '.sww', domain, |
---|
759 | quantities = domain.conserved_quantities, |
---|
760 | interpolation_points = interpolation_points) |
---|
761 | assert allclose(domain.starttime, start+1) |
---|
762 | domain.starttime = start |
---|
763 | |
---|
764 | |
---|
765 | #Check linear interpolation in time |
---|
766 | # checking points inside and outside the mesh |
---|
767 | F = file_function(filename + '.sww', domain, |
---|
768 | quantities = domain.conserved_quantities, |
---|
769 | interpolation_points = interpolation_points) |
---|
770 | |
---|
771 | for id in range(len(interpolation_points)): |
---|
772 | x = interpolation_points[id][0] |
---|
773 | y = interpolation_points[id][1] |
---|
774 | |
---|
775 | for i in range(20): |
---|
776 | t = i*10 |
---|
777 | k = i%6 |
---|
778 | |
---|
779 | if k == 0: |
---|
780 | q0 = F(t, point_id=id) |
---|
781 | q1 = F(t+60, point_id=id) |
---|
782 | |
---|
783 | if q0 == INF: |
---|
784 | actual = q0 |
---|
785 | else: |
---|
786 | actual = (k*q1 + (6-k)*q0)/6 |
---|
787 | q = F(t, point_id=id) |
---|
788 | #print i, k, t, q |
---|
789 | #print ' ', q0 |
---|
790 | #print ' ', q1 |
---|
791 | #print "q",q |
---|
792 | #print "actual", actual |
---|
793 | #print |
---|
794 | if q0 == INF: |
---|
795 | self.failUnless( q == actual, 'Fail!') |
---|
796 | else: |
---|
797 | assert allclose(q, actual) |
---|
798 | |
---|
799 | # now lets check points inside the mesh |
---|
800 | interpolation_points = [[0,-20], [1,0], [0,1], [1.1, 3.14]] #, [10,-12.5]] - this point doesn't work WHY? |
---|
801 | interpolation_points = [[10,-12.5]] |
---|
802 | |
---|
803 | print "len(interpolation_points)",len(interpolation_points) |
---|
804 | F = file_function(filename + '.sww', domain, |
---|
805 | quantities = domain.conserved_quantities, |
---|
806 | interpolation_points = interpolation_points) |
---|
807 | |
---|
808 | domain.starttime = start |
---|
809 | |
---|
810 | |
---|
811 | #Check linear interpolation in time |
---|
812 | F = file_function(filename + '.sww', domain, |
---|
813 | quantities = domain.conserved_quantities, |
---|
814 | interpolation_points = interpolation_points) |
---|
815 | for id in range(len(interpolation_points)): |
---|
816 | x = interpolation_points[id][0] |
---|
817 | y = interpolation_points[id][1] |
---|
818 | |
---|
819 | for i in range(20): |
---|
820 | t = i*10 |
---|
821 | k = i%6 |
---|
822 | |
---|
823 | if k == 0: |
---|
824 | q0 = F(t, point_id=id) |
---|
825 | q1 = F(t+60, point_id=id) |
---|
826 | |
---|
827 | if q0 == INF: |
---|
828 | actual = q0 |
---|
829 | else: |
---|
830 | actual = (k*q1 + (6-k)*q0)/6 |
---|
831 | q = F(t, point_id=id) |
---|
832 | print "############" |
---|
833 | print "id, x, y ", id, x, y #k, t, q |
---|
834 | print "t", t |
---|
835 | #print ' ', q0 |
---|
836 | #print ' ', q1 |
---|
837 | print "q",q |
---|
838 | print "actual", actual |
---|
839 | #print |
---|
840 | if q0 == INF: |
---|
841 | self.failUnless( q == actual, 'Fail!') |
---|
842 | else: |
---|
843 | assert allclose(q, actual) |
---|
844 | |
---|
845 | |
---|
846 | #Another check of linear interpolation in time |
---|
847 | for id in range(len(interpolation_points)): |
---|
848 | q60 = F(60, point_id=id) |
---|
849 | q120 = F(120, point_id=id) |
---|
850 | |
---|
851 | t = 90 #Halfway between 60 and 120 |
---|
852 | q = F(t, point_id=id) |
---|
853 | assert allclose( (q120+q60)/2, q ) |
---|
854 | |
---|
855 | t = 100 #Two thirds of the way between between 60 and 120 |
---|
856 | q = F(t, point_id=id) |
---|
857 | assert allclose(q60/3 + 2*q120/3, q) |
---|
858 | |
---|
859 | |
---|
860 | |
---|
861 | #Check that domain.starttime isn't updated if later than file starttime but earlier |
---|
862 | #than file end time |
---|
863 | delta = 23 |
---|
864 | domain.starttime = start + delta |
---|
865 | F = file_function(filename + '.sww', domain, |
---|
866 | quantities = domain.conserved_quantities, |
---|
867 | interpolation_points = interpolation_points) |
---|
868 | assert allclose(domain.starttime, start+delta) |
---|
869 | |
---|
870 | |
---|
871 | |
---|
872 | |
---|
873 | #Now try interpolation with delta offset |
---|
874 | for id in range(len(interpolation_points)): |
---|
875 | x = interpolation_points[id][0] |
---|
876 | y = interpolation_points[id][1] |
---|
877 | |
---|
878 | for i in range(20): |
---|
879 | t = i*10 |
---|
880 | k = i%6 |
---|
881 | |
---|
882 | if k == 0: |
---|
883 | q0 = F(t-delta, point_id=id) |
---|
884 | q1 = F(t+60-delta, point_id=id) |
---|
885 | |
---|
886 | q = F(t-delta, point_id=id) |
---|
887 | assert allclose(q, (k*q1 + (6-k)*q0)/6) |
---|
888 | |
---|
889 | |
---|
890 | os.remove(filename + '.sww') |
---|
891 | |
---|
892 | def test_file_function_time_with_domain(self): |
---|
893 | """Test that File function interpolates correctly |
---|
894 | between given times. No x,y dependency here. |
---|
895 | Use domain with starttime |
---|
896 | """ |
---|
897 | |
---|
898 | #Write file |
---|
899 | import os, time, calendar |
---|
900 | from config import time_format |
---|
901 | from math import sin, pi |
---|
902 | from domain import Domain |
---|
903 | |
---|
904 | finaltime = 1200 |
---|
905 | filename = 'test_file_function' |
---|
906 | fid = open(filename + '.txt', 'w') |
---|
907 | start = time.mktime(time.strptime('2000', '%Y')) |
---|
908 | dt = 60 #One minute intervals |
---|
909 | t = 0.0 |
---|
910 | while t <= finaltime: |
---|
911 | t_string = time.strftime(time_format, time.gmtime(t+start)) |
---|
912 | fid.write('%s, %f %f %f\n' %(t_string, 2*t, t**2, sin(t*pi/600))) |
---|
913 | t += dt |
---|
914 | |
---|
915 | fid.close() |
---|
916 | |
---|
917 | |
---|
918 | #Convert ASCII file to NetCDF (Which is what we really like!) |
---|
919 | timefile2netcdf(filename) |
---|
920 | |
---|
921 | |
---|
922 | |
---|
923 | a = [0.0, 0.0] |
---|
924 | b = [4.0, 0.0] |
---|
925 | c = [0.0, 3.0] |
---|
926 | |
---|
927 | points = [a, b, c] |
---|
928 | vertices = [[0,1,2]] |
---|
929 | domain = Domain(points, vertices) |
---|
930 | |
---|
931 | #Check that domain.starttime is updated if non-existing |
---|
932 | F = file_function(filename + '.tms', domain) |
---|
933 | |
---|
934 | assert allclose(domain.starttime, start) |
---|
935 | |
---|
936 | #Check that domain.starttime is updated if too early |
---|
937 | domain.starttime = start - 1 |
---|
938 | F = file_function(filename + '.tms', domain) |
---|
939 | assert allclose(domain.starttime, start) |
---|
940 | |
---|
941 | #Check that domain.starttime isn't updated if later |
---|
942 | domain.starttime = start + 1 |
---|
943 | F = file_function(filename + '.tms', domain) |
---|
944 | assert allclose(domain.starttime, start+1) |
---|
945 | |
---|
946 | domain.starttime = start |
---|
947 | F = file_function(filename + '.tms', domain, |
---|
948 | quantities = ['Attribute0', 'Attribute1', 'Attribute2']) |
---|
949 | |
---|
950 | |
---|
951 | #print F.T |
---|
952 | #print F.precomputed_values |
---|
953 | #print 'F(60)', F(60) |
---|
954 | |
---|
955 | #Now try interpolation |
---|
956 | for i in range(20): |
---|
957 | t = i*10 |
---|
958 | q = F(t) |
---|
959 | |
---|
960 | #Exact linear intpolation |
---|
961 | assert allclose(q[0], 2*t) |
---|
962 | if i%6 == 0: |
---|
963 | assert allclose(q[1], t**2) |
---|
964 | assert allclose(q[2], sin(t*pi/600)) |
---|
965 | |
---|
966 | #Check non-exact |
---|
967 | |
---|
968 | t = 90 #Halfway between 60 and 120 |
---|
969 | q = F(t) |
---|
970 | assert allclose( (120**2 + 60**2)/2, q[1] ) |
---|
971 | assert allclose( (sin(120*pi/600) + sin(60*pi/600))/2, q[2] ) |
---|
972 | |
---|
973 | |
---|
974 | t = 100 #Two thirds of the way between between 60 and 120 |
---|
975 | q = F(t) |
---|
976 | assert allclose( 2*120**2/3 + 60**2/3, q[1] ) |
---|
977 | assert allclose( 2*sin(120*pi/600)/3 + sin(60*pi/600)/3, q[2] ) |
---|
978 | |
---|
979 | os.remove(filename + '.tms') |
---|
980 | os.remove(filename + '.txt') |
---|
981 | |
---|
982 | def test_file_function_time_with_domain_different_start(self): |
---|
983 | """Test that File function interpolates correctly |
---|
984 | between given times. No x,y dependency here. |
---|
985 | Use domain with a starttime later than that of file |
---|
986 | |
---|
987 | ASCII version |
---|
988 | """ |
---|
989 | |
---|
990 | #Write file |
---|
991 | import os, time, calendar |
---|
992 | from config import time_format |
---|
993 | from math import sin, pi |
---|
994 | from domain import Domain |
---|
995 | |
---|
996 | finaltime = 1200 |
---|
997 | filename = 'test_file_function' |
---|
998 | fid = open(filename + '.txt', 'w') |
---|
999 | start = time.mktime(time.strptime('2000', '%Y')) |
---|
1000 | dt = 60 #One minute intervals |
---|
1001 | t = 0.0 |
---|
1002 | while t <= finaltime: |
---|
1003 | t_string = time.strftime(time_format, time.gmtime(t+start)) |
---|
1004 | fid.write('%s, %f %f %f\n' %(t_string, 2*t, t**2, sin(t*pi/600))) |
---|
1005 | t += dt |
---|
1006 | |
---|
1007 | fid.close() |
---|
1008 | |
---|
1009 | #Convert ASCII file to NetCDF (Which is what we really like!) |
---|
1010 | timefile2netcdf(filename) |
---|
1011 | |
---|
1012 | a = [0.0, 0.0] |
---|
1013 | b = [4.0, 0.0] |
---|
1014 | c = [0.0, 3.0] |
---|
1015 | |
---|
1016 | points = [a, b, c] |
---|
1017 | vertices = [[0,1,2]] |
---|
1018 | domain = Domain(points, vertices) |
---|
1019 | |
---|
1020 | #Check that domain.starttime isn't updated if later than file starttime but earlier |
---|
1021 | #than file end time |
---|
1022 | delta = 23 |
---|
1023 | domain.starttime = start + delta |
---|
1024 | F = file_function(filename + '.tms', domain, |
---|
1025 | quantities = ['Attribute0', 'Attribute1', 'Attribute2']) |
---|
1026 | assert allclose(domain.starttime, start+delta) |
---|
1027 | |
---|
1028 | |
---|
1029 | |
---|
1030 | |
---|
1031 | #Now try interpolation with delta offset |
---|
1032 | for i in range(20): |
---|
1033 | t = i*10 |
---|
1034 | q = F(t-delta) |
---|
1035 | |
---|
1036 | #Exact linear intpolation |
---|
1037 | assert allclose(q[0], 2*t) |
---|
1038 | if i%6 == 0: |
---|
1039 | assert allclose(q[1], t**2) |
---|
1040 | assert allclose(q[2], sin(t*pi/600)) |
---|
1041 | |
---|
1042 | #Check non-exact |
---|
1043 | |
---|
1044 | t = 90 #Halfway between 60 and 120 |
---|
1045 | q = F(t-delta) |
---|
1046 | assert allclose( (120**2 + 60**2)/2, q[1] ) |
---|
1047 | assert allclose( (sin(120*pi/600) + sin(60*pi/600))/2, q[2] ) |
---|
1048 | |
---|
1049 | |
---|
1050 | t = 100 #Two thirds of the way between between 60 and 120 |
---|
1051 | q = F(t-delta) |
---|
1052 | assert allclose( 2*120**2/3 + 60**2/3, q[1] ) |
---|
1053 | assert allclose( 2*sin(120*pi/600)/3 + sin(60*pi/600)/3, q[2] ) |
---|
1054 | |
---|
1055 | |
---|
1056 | os.remove(filename + '.tms') |
---|
1057 | os.remove(filename + '.txt') |
---|
1058 | |
---|
1059 | |
---|
1060 | |
---|
1061 | def test_apply_expression_to_dictionary(self): |
---|
1062 | |
---|
1063 | #FIXME: Division is not expected to work for integers. |
---|
1064 | #This must be caught. |
---|
1065 | foo = array([[1,2,3], |
---|
1066 | [4,5,6]], Float) |
---|
1067 | |
---|
1068 | bar = array([[-1,0,5], |
---|
1069 | [6,1,1]], Float) |
---|
1070 | |
---|
1071 | D = {'X': foo, 'Y': bar} |
---|
1072 | |
---|
1073 | Z = apply_expression_to_dictionary('X+Y', D) |
---|
1074 | assert allclose(Z, foo+bar) |
---|
1075 | |
---|
1076 | Z = apply_expression_to_dictionary('X*Y', D) |
---|
1077 | assert allclose(Z, foo*bar) |
---|
1078 | |
---|
1079 | Z = apply_expression_to_dictionary('4*X+Y', D) |
---|
1080 | assert allclose(Z, 4*foo+bar) |
---|
1081 | |
---|
1082 | # test zero division is OK |
---|
1083 | Z = apply_expression_to_dictionary('X/Y', D) |
---|
1084 | assert allclose(1/Z, 1/(foo/bar)) # can't compare inf to inf |
---|
1085 | |
---|
1086 | # make an error for zero on zero |
---|
1087 | # this is really an error in Numeric, SciPy core can handle it |
---|
1088 | # Z = apply_expression_to_dictionary('0/Y', D) |
---|
1089 | |
---|
1090 | #Check exceptions |
---|
1091 | try: |
---|
1092 | #Wrong name |
---|
1093 | Z = apply_expression_to_dictionary('4*X+A', D) |
---|
1094 | except NameError: |
---|
1095 | pass |
---|
1096 | else: |
---|
1097 | msg = 'Should have raised a NameError Exception' |
---|
1098 | raise msg |
---|
1099 | |
---|
1100 | |
---|
1101 | try: |
---|
1102 | #Wrong order |
---|
1103 | Z = apply_expression_to_dictionary(D, '4*X+A') |
---|
1104 | except AssertionError: |
---|
1105 | pass |
---|
1106 | else: |
---|
1107 | msg = 'Should have raised a AssertionError Exception' |
---|
1108 | raise msg |
---|
1109 | |
---|
1110 | |
---|
1111 | def test_multiple_replace(self): |
---|
1112 | """Hard test that checks a true word-by-word simultaneous replace |
---|
1113 | """ |
---|
1114 | |
---|
1115 | D = {'x': 'xi', 'y': 'eta', 'xi':'lam'} |
---|
1116 | exp = '3*x+y + xi' |
---|
1117 | |
---|
1118 | new = multiple_replace(exp, D) |
---|
1119 | |
---|
1120 | assert new == '3*xi+eta + lam' |
---|
1121 | |
---|
1122 | |
---|
1123 | |
---|
1124 | def test_point_on_line_obsolete(self): |
---|
1125 | """Test that obsolete call issues appropriate warning""" |
---|
1126 | |
---|
1127 | #Turn warning into an exception |
---|
1128 | import warnings |
---|
1129 | warnings.filterwarnings('error') |
---|
1130 | |
---|
1131 | try: |
---|
1132 | assert point_on_line( 0, 0.5, 0,1, 0,0 ) |
---|
1133 | except DeprecationWarning: |
---|
1134 | pass |
---|
1135 | else: |
---|
1136 | msg = 'point_on_line should have issued a DeprecationWarning' |
---|
1137 | raise Exception(msg) |
---|
1138 | |
---|
1139 | warnings.resetwarnings() |
---|
1140 | |
---|
1141 | |
---|
1142 | #------------------------------------------------------------- |
---|
1143 | if __name__ == "__main__": |
---|
1144 | suite = unittest.makeSuite(Test_Util,'test') |
---|
1145 | #suite = unittest.makeSuite(Test_Util,'test_apply') |
---|
1146 | runner = unittest.TextTestRunner() |
---|
1147 | runner.run(suite) |
---|
1148 | |
---|
1149 | |
---|
1150 | |
---|
1151 | |
---|