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annotate test/Grids/equidistant_grid_test.jl @ 1829:871f3f1decea refactor/grids/iterable_boundary_indices

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Merge default
author Jonatan Werpers <jonatan@werpers.com>
date Sun, 20 Oct 2024 21:38:09 +0200
parents 98ae79eb0709 471a948cd2b2
children edee7d677efb f93ba5832146
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1 using Diffinitive.Grids
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2 using Test
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3 using Diffinitive.LazyTensors
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6 @testset "EquidistantGrid" begin
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7 @test EquidistantGrid(0:0.1:10) isa EquidistantGrid
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8 @test EquidistantGrid(range(0,1,length=10)) isa EquidistantGrid
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9 @test EquidistantGrid(LinRange(0,1,11)) isa EquidistantGrid
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11 @testset "Indexing Interface" begin
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12 g = EquidistantGrid(0:0.1:10)
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13 @test g[1] == 0.0
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14 @test g[5] == 0.4
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15 @test g[101] == 10.0
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17 @test g[begin] == 0.0
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18 @test g[end] == 10.0
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20 @test all(eachindex(g) .== 1:101)
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22 @test firstindex(g) == 1
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23 @test lastindex(g) == 101
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24 end
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25
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26 @testset "Iterator interface" begin
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27 @test eltype(EquidistantGrid(0:10)) == Int
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28 @test eltype(EquidistantGrid(0:2:10)) == Int
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29 @test eltype(EquidistantGrid(0:0.1:10)) == Float64
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30 @test size(EquidistantGrid(0:10)) == (11,)
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31 @test size(EquidistantGrid(0:0.1:10)) == (101,)
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32
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33 @test size(EquidistantGrid(0:0.1:10),1) == 101
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34
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35 @test collect(EquidistantGrid(0:0.1:0.5)) == [0.0, 0.1, 0.2, 0.3, 0.4, 0.5]
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37 @test Base.IteratorSize(EquidistantGrid{Float64, StepRange{Float64}}) == Base.HasShape{1}()
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38 end
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40 @testset "Base" begin
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41 @test ndims(EquidistantGrid(0:10)) == 1
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43 g = EquidistantGrid(0:0.1:10)
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44 @test axes(g,1) == 1:101
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45 @test axes(g) == (1:101,)
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46 end
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48 @testset "spacing" begin
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49 @test spacing(EquidistantGrid(0:10)) == 1
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50 @test spacing(EquidistantGrid(0:0.1:10)) == 0.1
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51 end
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53 @testset "inverse_spacing" begin
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54 @test inverse_spacing(EquidistantGrid(0:10)) == 1
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55 @test inverse_spacing(EquidistantGrid(0:0.1:10)) == 10
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56 end
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57
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58 @testset "min_spacing" begin
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59 @test min_spacing(EquidistantGrid(0:10)) == 1
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60 @test min_spacing(EquidistantGrid(0:0.1:10)) == 0.1
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61 end
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62
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63 @testset "boundary_identifiers" begin
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64 g = EquidistantGrid(0:0.1:10)
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65 @test boundary_identifiers(g) == (LowerBoundary(), UpperBoundary())
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66 @inferred boundary_identifiers(g)
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67 end
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69 @testset "boundary_grid" begin
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70 g = EquidistantGrid(0:0.1:1)
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71 @test boundary_grid(g, LowerBoundary()) == ZeroDimGrid(0.0)
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72 @test boundary_grid(g, UpperBoundary()) == ZeroDimGrid(1.0)
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73 end
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74
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75 @testset "boundary_indices" begin
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76 g = EquidistantGrid(0:0.1:1)
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77 @test boundary_indices(g, LowerBoundary()) == 1
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78 @test boundary_indices(g, UpperBoundary()) == 11
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79
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80 gf = collect(g)
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81 @test gf[boundary_indices(g, LowerBoundary())] == gf[1]
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82 @test gf[boundary_indices(g, UpperBoundary())] == gf[11]
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83
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84 g = EquidistantGrid(2:0.1:10)
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85 @test boundary_indices(g, LowerBoundary()) == 1
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86 @test boundary_indices(g, UpperBoundary()) == 81
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87 end
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89 @testset "refine" begin
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90 g = EquidistantGrid(0:0.1:1)
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91 @test refine(g, 1) == g
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92 @test refine(g, 2) == EquidistantGrid(0:0.05:1)
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93 @test refine(g, 3) == EquidistantGrid(0:(0.1/3):1)
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94 end
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96 @testset "coarsen" begin
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97 g = EquidistantGrid(0:1:10)
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98 @test coarsen(g, 1) == g
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99 @test coarsen(g, 2) == EquidistantGrid(0:2:10)
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100
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101 g = EquidistantGrid(0:0.1:1)
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102 @test coarsen(g, 1) == g
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103 @test coarsen(g, 2) == EquidistantGrid(0:0.2:1)
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104
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105 g = EquidistantGrid(0:10)
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106 @test coarsen(g, 1) == EquidistantGrid(0:1:10)
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107 @test coarsen(g, 2) == EquidistantGrid(0:2:10)
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108
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109 @test_throws DomainError(3, "Size minus 1 must be divisible by the ratio.") coarsen(g, 3)
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110 end
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111 end
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114 @testset "equidistant_grid" begin
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115 @test equidistant_grid(0.0,1.0, 4) isa EquidistantGrid
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116 @test equidistant_grid((0.0,0.0),(8.0,5.0), 4, 3) isa TensorGrid
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117 @test equidistant_grid((0.0,),(8.0,), 4) isa TensorGrid
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118
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119 # constuctor
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120 @test_throws DomainError equidistant_grid(0.0, 1.0, 0)
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121 @test_throws DomainError equidistant_grid(1.0, 1.0, 1)
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122 @test_throws DomainError equidistant_grid(1.0, -1.0, 1)
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123
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124 @test_throws DomainError equidistant_grid((0.0,0.0),(1.0,1.0), 0, 0)
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125 @test_throws DomainError equidistant_grid((1.0,1.0),(1.0,1.0), 1, 1)
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126 @test_throws DomainError equidistant_grid((1.0,1.0),(-1.0,-1.0), 1, 1)
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127
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128 @test_throws ArgumentError equidistant_grid((0.0,),(8.0,5.0), 4, 3, 4)
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130 @testset "Base" begin
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131 @test eltype(equidistant_grid(0.0, 1.0, 4)) == Float64
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132 @test eltype(equidistant_grid((0,0),(1,3), 4, 3)) <: AbstractVector{Float64}
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133
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134 @test size(equidistant_grid(0.0, 1.0, 4)) == (4,)
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135 @test size(equidistant_grid((0.0,0.0), (2.0,1.0), 5, 3)) == (5,3)
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136
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137 @test size(equidistant_grid((0.0,0.0), (2.0,1.0), 5, 3), 1) == 5
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138 @test size(equidistant_grid((0.0,0.0), (2.0,1.0), 5, 3), 2) == 3
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139
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140 @test ndims(equidistant_grid(0.0, 1.0, 4)) == 1
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141 @test ndims(equidistant_grid((0.0,0.0), (2.0,1.0), 5, 3)) == 2
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142 end
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143
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144 @testset "getindex" begin
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145 g = equidistant_grid((-1.0,0.0), (0.0,7.11), 5, 3)
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146 gp = collect(g);
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147 p = [(-1.,0.) (-1.,7.11/2) (-1.,7.11);
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148 (-0.75,0.) (-0.75,7.11/2) (-0.75,7.11);
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149 (-0.5,0.) (-0.5,7.11/2) (-0.5,7.11);
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150 (-0.25,0.) (-0.25,7.11/2) (-0.25,7.11);
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151 (0.,0.) (0.,7.11/2) (0.,7.11)]
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152 for i ∈ eachindex(gp)
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153 @test [gp[i]...] ≈ [p[i]...] atol=5e-13
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154 end
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155 end
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156 end
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157
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158
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159 @testset "change_length" begin
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160 @test Grids.change_length(0:20, 21) == 0:20
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161 @test Grids.change_length(0:20, 11) == 0:2:20
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162 @test Grids.change_length(0:2:20, 21) == 0:20
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163
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164 @test Grids.change_length(range(0,1,length=10), 10) == range(0,1,length=10)
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165 @test Grids.change_length(range(0,1,length=10), 5) == range(0,1,length=5)
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166 @test Grids.change_length(range(0,1,length=10), 20) == range(0,1,length=20)
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167
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168 @test Grids.change_length(LinRange(1,2,10),10) == LinRange(1,2,10)
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169 @test Grids.change_length(LinRange(1,2,10),15) == LinRange(1,2,15)
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170 end