1 | #!/usr/bin/env python |
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2 | # |
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3 | """ |
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4 | Let's do some system wide tests |
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5 | """ |
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6 | import tempfile |
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7 | import unittest |
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8 | import os |
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9 | |
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10 | from Scientific.IO.NetCDF import NetCDFFile |
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11 | from Numeric import allclose |
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12 | |
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13 | from anuga.shallow_water import Domain |
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14 | from anuga.shallow_water import Dirichlet_boundary, Time_boundary |
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15 | from anuga.shallow_water import File_boundary |
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16 | from anuga.pmesh.mesh import Mesh |
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17 | from anuga.abstract_2d_finite_volumes.pmesh2domain import pmesh_instance_to_domain_instance |
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18 | |
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19 | |
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20 | |
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21 | class Test_system(unittest.TestCase): |
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22 | def setUp(self): |
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23 | pass |
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24 | |
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25 | def tearDown(self): |
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26 | pass |
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27 | |
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28 | def create_sww_boundary(self, boundary_starttime): |
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29 | """ |
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30 | This creates a boundary file with ; |
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31 | time stage |
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32 | 0 5 |
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33 | 10 2.15268 |
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34 | 20 13.9773 |
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35 | """ |
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36 | tide = 5 |
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37 | boundary_filename = tempfile.mktemp(".sww") |
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38 | dir, base = os.path.split(boundary_filename) |
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39 | boundary_name = base[:-4] |
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40 | |
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41 | # Setup computational domain |
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42 | mesh = Mesh() |
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43 | mesh.add_region_from_polygon([[0,0], [100,0], [100,100], [0,100]]) |
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44 | mesh.generate_mesh(verbose=False) |
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45 | |
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46 | domain = pmesh_instance_to_domain_instance(mesh, Domain) |
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47 | domain.set_name(boundary_name) |
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48 | domain.set_datadir(dir) |
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49 | domain.set_starttime(boundary_starttime) |
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50 | |
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51 | # Setup initial conditions |
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52 | domain.set_quantity('elevation', 0.0) |
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53 | domain.set_quantity('stage', tide) |
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54 | |
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55 | # Setup boundary conditions |
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56 | Bd = Dirichlet_boundary([tide,0.,0.]) # Constant boundary values |
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57 | Bd = Time_boundary(domain=domain, # Time dependent boundary |
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58 | f=lambda t: [t, 0.0, 0.0]) |
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59 | domain.set_boundary({'exterior': Bd}) |
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60 | for t in domain.evolve(yieldstep = 10, finaltime = 20.0): |
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61 | pass |
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62 | #domain.write_time() |
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63 | #print "domain.time", domain.time |
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64 | return boundary_filename |
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65 | |
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66 | def test_boundary_time(self): |
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67 | """ |
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68 | test_boundary_time(self): |
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69 | test that the starttime of a boundary condition is carried thru |
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70 | to the output sww file. |
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71 | |
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72 | """ |
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73 | |
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74 | boundary_starttime = 500 |
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75 | boundary_filename = self.create_sww_boundary(boundary_starttime) |
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76 | filename = tempfile.mktemp(".sww") |
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77 | #print "filename",filename |
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78 | dir, base = os.path.split(filename) |
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79 | senario_name = base[:-4] |
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80 | |
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81 | mesh = Mesh() |
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82 | ###mesh.add_region_from_polygon([[10,10], [90,10], [90,90], [10,90]]) |
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83 | mesh.add_region_from_polygon([[0,0], [100,0], [100,100], [0,100]]) |
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84 | mesh.generate_mesh(verbose=False) |
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85 | |
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86 | domain = pmesh_instance_to_domain_instance(mesh, Domain) |
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87 | domain.set_name(senario_name) |
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88 | domain.set_datadir(dir) |
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89 | |
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90 | # Setup initial conditions |
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91 | domain.set_quantity('elevation', 0.0) |
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92 | domain.set_quantity('stage', 0.0) |
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93 | Bf = File_boundary(boundary_filename, |
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94 | domain, use_cache=False, verbose=False) |
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95 | |
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96 | # Setup boundary conditions |
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97 | domain.set_boundary({'exterior': Bf}) |
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98 | |
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99 | |
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100 | for t in domain.evolve(yieldstep = 5.0, finaltime = 10.0): |
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101 | pass |
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102 | #print domain.write_time() |
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103 | #print "domain.time", domain.time |
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104 | |
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105 | # do an assertion on the time of the produced sww file |
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106 | fid = NetCDFFile(filename, 'r') #Open existing file for read |
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107 | times = fid.variables['time'][:] |
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108 | #print "times", times |
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109 | #print "fid.starttime", fid.starttime |
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110 | assert allclose(fid.starttime, boundary_starttime) |
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111 | fid.close() |
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112 | |
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113 | # clean up |
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114 | os.remove(boundary_filename) |
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115 | os.remove(filename) |
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116 | |
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117 | def test_boundary_timeII(self): |
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118 | """ |
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119 | test_boundary_timeII(self): |
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120 | Test that starttime can be set in the middle of a boundary condition |
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121 | """ |
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122 | |
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123 | boundary_starttime = 500 |
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124 | boundary_filename = self.create_sww_boundary(boundary_starttime) |
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125 | #print "boundary_filename",boundary_filename |
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126 | |
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127 | filename = tempfile.mktemp(".sww") |
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128 | #print "filename",filename |
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129 | dir, base = os.path.split(filename) |
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130 | senario_name = base[:-4] |
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131 | |
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132 | mesh = Mesh() |
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133 | mesh.add_region_from_polygon([[10,10], [90,10], [90,90], [10,90]]) |
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134 | mesh.generate_mesh(verbose=False) |
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135 | |
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136 | domain = pmesh_instance_to_domain_instance(mesh, Domain) |
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137 | domain.set_name(senario_name) |
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138 | domain.set_datadir(dir) |
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139 | new_starttime = 510. |
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140 | domain.set_starttime(new_starttime) |
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141 | |
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142 | # Setup initial conditions |
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143 | domain.set_quantity('elevation', 0.0) |
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144 | domain.set_quantity('stage', 0.0) |
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145 | Bf = File_boundary(boundary_filename, |
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146 | domain, use_cache=False, verbose=False) |
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147 | |
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148 | # Setup boundary conditions |
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149 | domain.set_boundary({'exterior': Bf}) |
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150 | for t in domain.evolve(yieldstep = 5, finaltime = 9.0): |
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151 | pass |
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152 | #domain.write_time() |
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153 | #print "domain.time", domain.time |
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154 | |
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155 | # do an assertion on the time of the produced sww file |
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156 | fid = NetCDFFile(filename, 'r') #Open existing file for read |
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157 | times = fid.variables['time'][:] |
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158 | stage = fid.variables['stage'][:] |
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159 | #print stage |
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160 | #print "times", times |
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161 | #print "fid.starttime", fid.starttime |
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162 | assert allclose(fid.starttime, new_starttime) |
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163 | fid.close() |
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164 | #print "stage[2,0]", stage[2,0] |
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165 | msg = "This test is a bit hand crafted, based on the output file. " |
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166 | msg += "Not logic. " |
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167 | msg += "It's testing that starttime is working" |
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168 | assert allclose(stage[2,0], 5.959411),msg |
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169 | |
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170 | |
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171 | |
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172 | # clean up |
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173 | os.remove(boundary_filename) |
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174 | os.remove(filename) |
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175 | |
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176 | #------------------------------------------------------------- |
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177 | if __name__ == "__main__": |
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178 | suite = unittest.makeSuite(Test_system,'test') |
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179 | #suite = unittest.makeSuite(Test_system,'test_boundary_timeII') |
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180 | runner = unittest.TextTestRunner() |
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181 | runner.run(suite) |
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