| 1 | #!/usr/bin/env python |
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| 2 | |
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| 3 | import unittest |
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| 4 | from math import sqrt |
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| 5 | |
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| 6 | from domain import * |
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| 7 | from config import epsilon |
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| 8 | from Numeric import allclose, array |
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| 9 | |
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| 10 | class TestCase(unittest.TestCase): |
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| 11 | def setUp(self): |
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| 12 | pass |
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| 13 | |
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| 14 | |
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| 15 | def tearDown(self): |
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| 16 | pass |
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| 17 | |
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| 18 | |
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| 19 | def test_simple(self): |
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| 20 | a = [0.0, 0.0] |
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| 21 | b = [0.0, 2.0] |
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| 22 | c = [2.0,0.0] |
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| 23 | d = [0.0, 4.0] |
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| 24 | e = [2.0, 2.0] |
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| 25 | f = [4.0,0.0] |
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| 26 | |
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| 27 | points = [a, b, c, d, e, f] |
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| 28 | #bac, bce, ecf, dbe, daf, dae |
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| 29 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4], [3,0,5], [3,0,4]] |
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| 30 | |
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| 31 | conserved_quantities = ['level', 'xmomentum', 'ymomentum'] |
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| 32 | other_quantities = ['elevation', 'friction'] |
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| 33 | |
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| 34 | domain = Domain(points, vertices, None, |
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| 35 | conserved_quantities, other_quantities) |
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| 36 | domain.check_integrity() |
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| 37 | |
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| 38 | for name in conserved_quantities + other_quantities: |
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| 39 | assert domain.quantities.has_key(name) |
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| 40 | |
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| 41 | |
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| 42 | assert domain.get_conserved_quantities(0, edge=1) == 0. |
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| 43 | |
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| 44 | |
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| 45 | def test_conserved_quantities(self): |
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| 46 | |
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| 47 | a = [0.0, 0.0] |
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| 48 | b = [0.0, 2.0] |
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| 49 | c = [2.0,0.0] |
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| 50 | d = [0.0, 4.0] |
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| 51 | e = [2.0, 2.0] |
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| 52 | f = [4.0,0.0] |
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| 53 | |
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| 54 | points = [a, b, c, d, e, f] |
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| 55 | #bac, bce, ecf, dbe, daf, dae |
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| 56 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4], [3,0,5], [3,0,4]] |
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| 57 | |
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| 58 | domain = Domain(points, vertices, boundary=None, |
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| 59 | conserved_quantities =\ |
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| 60 | ['level', 'xmomentum', 'ymomentum']) |
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| 61 | |
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| 62 | |
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| 63 | domain.set_quantity('level', [[1,2,3], [5,5,5], |
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| 64 | [0,0,9], [-6, 3, 3], |
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| 65 | [0,0,0], [0,0,0]]) |
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| 66 | |
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| 67 | domain.set_quantity('xmomentum', [[1,2,3], [5,5,5], |
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| 68 | [0,0,9], [-6, 3, 3], |
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| 69 | [0,0,0], [0,0,0]]) |
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| 70 | |
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| 71 | domain.check_integrity() |
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| 72 | |
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| 73 | #Centroids |
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| 74 | q = domain.get_conserved_quantities(0) |
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| 75 | assert allclose(q, [2., 2., 0.]) |
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| 76 | |
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| 77 | q = domain.get_conserved_quantities(1) |
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| 78 | assert allclose(q, [5., 5., 0.]) |
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| 79 | |
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| 80 | q = domain.get_conserved_quantities(2) |
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| 81 | assert allclose(q, [3., 3., 0.]) |
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| 82 | |
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| 83 | q = domain.get_conserved_quantities(3) |
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| 84 | assert allclose(q, [0., 0., 0.]) |
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| 85 | |
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| 86 | |
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| 87 | #Edges |
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| 88 | q = domain.get_conserved_quantities(0, edge=0) |
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| 89 | assert allclose(q, [2.5, 2.5, 0.]) |
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| 90 | q = domain.get_conserved_quantities(0, edge=1) |
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| 91 | assert allclose(q, [2., 2., 0.]) |
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| 92 | q = domain.get_conserved_quantities(0, edge=2) |
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| 93 | assert allclose(q, [1.5, 1.5, 0.]) |
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| 94 | |
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| 95 | for i in range(3): |
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| 96 | q = domain.get_conserved_quantities(1, edge=i) |
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| 97 | assert allclose(q, [5, 5, 0.]) |
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| 98 | |
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| 99 | |
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| 100 | q = domain.get_conserved_quantities(2, edge=0) |
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| 101 | assert allclose(q, [4.5, 4.5, 0.]) |
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| 102 | q = domain.get_conserved_quantities(2, edge=1) |
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| 103 | assert allclose(q, [4.5, 4.5, 0.]) |
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| 104 | q = domain.get_conserved_quantities(2, edge=2) |
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| 105 | assert allclose(q, [0., 0., 0.]) |
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| 106 | |
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| 107 | |
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| 108 | q = domain.get_conserved_quantities(3, edge=0) |
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| 109 | assert allclose(q, [3., 3., 0.]) |
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| 110 | q = domain.get_conserved_quantities(3, edge=1) |
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| 111 | assert allclose(q, [-1.5, -1.5, 0.]) |
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| 112 | q = domain.get_conserved_quantities(3, edge=2) |
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| 113 | assert allclose(q, [-1.5, -1.5, 0.]) |
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| 114 | |
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| 115 | |
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| 116 | |
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| 117 | def test_boundary_conditions(self): |
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| 118 | |
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| 119 | a = [0.0, 0.0] |
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| 120 | b = [0.0, 2.0] |
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| 121 | c = [2.0,0.0] |
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| 122 | d = [0.0, 4.0] |
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| 123 | e = [2.0, 2.0] |
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| 124 | f = [4.0,0.0] |
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| 125 | |
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| 126 | points = [a, b, c, d, e, f] |
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| 127 | #bac, bce, ecf, dbe |
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| 128 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4] ] |
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| 129 | boundary = { (0, 0): 'First', |
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| 130 | (0, 2): 'First', |
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| 131 | (2, 0): 'Second', |
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| 132 | (2, 1): 'Second', |
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| 133 | (3, 1): 'Second', |
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| 134 | (3, 2): 'Second'} |
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| 135 | |
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| 136 | |
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| 137 | domain = Domain(points, vertices, boundary, |
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| 138 | conserved_quantities =\ |
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| 139 | ['level', 'xmomentum', 'ymomentum']) |
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| 140 | domain.check_integrity() |
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| 141 | |
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| 142 | |
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| 143 | |
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| 144 | domain.set_quantity('level', [[1,2,3], [5,5,5], |
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| 145 | [0,0,9], [-6, 3, 3]]) |
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| 146 | |
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| 147 | |
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| 148 | domain.set_boundary( {'First': Dirichlet_boundary([5,2,1]), |
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| 149 | 'Second': Transmissive_boundary(domain)} ) |
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| 150 | |
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| 151 | domain.update_boundary() |
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| 152 | |
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| 153 | assert domain.quantities['level'].boundary_values[0] == 5. #Dirichlet |
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| 154 | assert domain.quantities['level'].boundary_values[1] == 5. #Dirichlet |
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| 155 | assert domain.quantities['level'].boundary_values[2] ==\ |
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| 156 | domain.get_conserved_quantities(2, edge=0)[0] #Transmissive (4.5) |
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| 157 | assert domain.quantities['level'].boundary_values[3] ==\ |
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| 158 | domain.get_conserved_quantities(2, edge=1)[0] #Transmissive (4.5) |
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| 159 | assert domain.quantities['level'].boundary_values[4] ==\ |
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| 160 | domain.get_conserved_quantities(3, edge=1)[0] #Transmissive (-1.5) |
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| 161 | assert domain.quantities['level'].boundary_values[5] ==\ |
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| 162 | domain.get_conserved_quantities(3, edge=2)[0] #Transmissive (-1.5) |
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| 163 | |
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| 164 | |
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| 165 | |
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| 166 | def test_distribute_first_order(self): |
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| 167 | """Domain implements a default first order gradient limiter |
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| 168 | """ |
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| 169 | |
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| 170 | a = [0.0, 0.0] |
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| 171 | b = [0.0, 2.0] |
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| 172 | c = [2.0,0.0] |
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| 173 | d = [0.0, 4.0] |
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| 174 | e = [2.0, 2.0] |
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| 175 | f = [4.0,0.0] |
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| 176 | |
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| 177 | points = [a, b, c, d, e, f] |
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| 178 | #bac, bce, ecf, dbe |
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| 179 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4] ] |
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| 180 | boundary = { (0, 0): 'Third', |
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| 181 | (0, 2): 'First', |
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| 182 | (2, 0): 'Second', |
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| 183 | (2, 1): 'Second', |
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| 184 | (3, 1): 'Second', |
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| 185 | (3, 2): 'Third'} |
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| 186 | |
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| 187 | |
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| 188 | domain = Domain(points, vertices, boundary, |
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| 189 | conserved_quantities =\ |
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| 190 | ['level', 'xmomentum', 'ymomentum']) |
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| 191 | domain.check_integrity() |
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| 192 | |
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| 193 | |
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| 194 | domain.set_quantity('level', [[1,2,3], [5,5,5], |
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| 195 | [0,0,9], [-6, 3, 3]]) |
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| 196 | |
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| 197 | assert allclose( domain.quantities['level'].centroid_values, |
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| 198 | [2,5,3,0] ) |
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| 199 | |
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| 200 | domain.set_quantity('xmomentum', [[1,1,1], [2,2,2], |
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| 201 | [3,3,3], [4, 4, 4]]) |
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| 202 | |
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| 203 | domain.set_quantity('ymomentum', [[10,10,10], [20,20,20], |
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| 204 | [30,30,30], [40, 40, 40]]) |
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| 205 | |
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| 206 | |
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| 207 | domain.distribute_to_vertices_and_edges() |
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| 208 | |
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| 209 | #First order extrapolation |
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| 210 | assert allclose( domain.quantities['level'].vertex_values, |
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| 211 | [[ 2., 2., 2.], |
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| 212 | [ 5., 5., 5.], |
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| 213 | [ 3., 3., 3.], |
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| 214 | [ 0., 0., 0.]]) |
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| 215 | |
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| 216 | |
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| 217 | |
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| 218 | |
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| 219 | def test_update_conserved_quantities(self): |
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| 220 | a = [0.0, 0.0] |
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| 221 | b = [0.0, 2.0] |
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| 222 | c = [2.0,0.0] |
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| 223 | d = [0.0, 4.0] |
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| 224 | e = [2.0, 2.0] |
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| 225 | f = [4.0,0.0] |
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| 226 | |
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| 227 | points = [a, b, c, d, e, f] |
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| 228 | #bac, bce, ecf, dbe |
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| 229 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4] ] |
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| 230 | boundary = { (0, 0): 'Third', |
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| 231 | (0, 2): 'First', |
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| 232 | (2, 0): 'Second', |
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| 233 | (2, 1): 'Second', |
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| 234 | (3, 1): 'Second', |
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| 235 | (3, 2): 'Third'} |
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| 236 | |
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| 237 | |
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| 238 | domain = Domain(points, vertices, boundary, |
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| 239 | conserved_quantities =\ |
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| 240 | ['level', 'xmomentum', 'ymomentum']) |
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| 241 | domain.check_integrity() |
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| 242 | |
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| 243 | |
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| 244 | domain.set_quantity('level', [1,2,3,4], 'centroids') |
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| 245 | domain.set_quantity('xmomentum', [1,2,3,4], 'centroids') |
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| 246 | domain.set_quantity('ymomentum', [1,2,3,4], 'centroids') |
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| 247 | |
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| 248 | |
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| 249 | #Assign some values to update vectors |
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| 250 | #Set explicit_update |
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| 251 | |
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| 252 | for name in domain.conserved_quantities: |
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| 253 | domain.quantities[name].explicit_update = array([4.,3.,2.,1.]) |
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| 254 | domain.quantities[name].semi_implicit_update = array([1.,1.,1.,1.]) |
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| 255 | |
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| 256 | |
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| 257 | #Update with given timestep (assuming no other forcing terms) |
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| 258 | domain.timestep = 0.1 |
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| 259 | domain.update_conserved_quantities() |
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| 260 | |
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| 261 | x = array([1, 2, 3, 4]) + array( [.4,.3,.2,.1] ) |
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| 262 | x /= array( [.9,.9,.9,.9] ) |
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| 263 | |
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| 264 | for name in domain.conserved_quantities: |
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| 265 | assert allclose(domain.quantities[name].centroid_values, x) |
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| 266 | |
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| 267 | |
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| 268 | |
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| 269 | #------------------------------------------------------------- |
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| 270 | if __name__ == "__main__": |
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| 271 | suite = unittest.makeSuite(TestCase,'test') |
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| 272 | runner = unittest.TextTestRunner() |
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| 273 | runner.run(suite) |
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