Mercurial > repos > public > sbplib_julia

annotate test/Grids/equidistant_grid_test.jl @ 1903:04c251bccbd4 feature/grids/manifolds

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Merge feature/grids/parameter_spaces
author Jonatan Werpers <jonatan@werpers.com>
date Sat, 01 Feb 2025 22:17:39 +0100
parents edee7d677efb f93ba5832146
children 624e19c20c19
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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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4 using StaticArrays
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5
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6
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7 @testset "EquidistantGrid" begin
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8 @test EquidistantGrid(0:0.1:10) isa EquidistantGrid
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9 @test EquidistantGrid(range(0,1,length=10)) isa EquidistantGrid
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10 @test EquidistantGrid(LinRange(0,1,11)) isa EquidistantGrid
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12 @testset "Indexing Interface" begin
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13 g = EquidistantGrid(0:0.1:10)
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14 @test g[1] == 0.0
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15 @test g[5] == 0.4
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16 @test g[101] == 10.0
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18 @test g[begin] == 0.0
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19 @test g[end] == 10.0
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21 @test all(eachindex(g) .== 1:101)
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23 @test firstindex(g) == 1
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24 @test lastindex(g) == 101
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25 end
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27 @testset "Iterator interface" begin
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28 @test eltype(EquidistantGrid(0:10)) == Int
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29 @test eltype(EquidistantGrid(0:2:10)) == Int
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30 @test eltype(EquidistantGrid(0:0.1:10)) == Float64
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31 @test size(EquidistantGrid(0:10)) == (11,)
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32 @test size(EquidistantGrid(0:0.1:10)) == (101,)
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34 @test size(EquidistantGrid(0:0.1:10),1) == 101
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36 @test collect(EquidistantGrid(0:0.1:0.5)) == [0.0, 0.1, 0.2, 0.3, 0.4, 0.5]
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38 @test Base.IteratorSize(EquidistantGrid{Float64, StepRange{Float64}}) == Base.HasShape{1}()
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39 end
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41 @testset "Base" begin
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42 @test ndims(EquidistantGrid(0:10)) == 1
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44 g = EquidistantGrid(0:0.1:10)
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45 @test axes(g,1) == 1:101
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46 @test axes(g) == (1:101,)
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47 end
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49 @testset "spacing" begin
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50 @test spacing(EquidistantGrid(0:10)) == 1
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51 @test spacing(EquidistantGrid(0:0.1:10)) == 0.1
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52 end
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54 @testset "inverse_spacing" begin
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55 @test inverse_spacing(EquidistantGrid(0:10)) == 1
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56 @test inverse_spacing(EquidistantGrid(0:0.1:10)) == 10
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57 end
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58
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59 @testset "min_spacing" begin
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60 @test min_spacing(EquidistantGrid(0:10)) == 1
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61 @test min_spacing(EquidistantGrid(0:0.1:10)) == 0.1
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62 end
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64 @testset "boundary_identifiers" begin
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65 g = EquidistantGrid(0:0.1:10)
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66 @test boundary_identifiers(g) == (LowerBoundary(), UpperBoundary())
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67 @inferred boundary_identifiers(g)
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68 end
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70 @testset "boundary_grid" begin
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71 g = EquidistantGrid(0:0.1:1)
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72 @test boundary_grid(g, LowerBoundary()) == ZeroDimGrid(0.0)
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73 @test boundary_grid(g, UpperBoundary()) == ZeroDimGrid(1.0)
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74 end
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75
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76 @testset "boundary_indices" begin
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77 g = EquidistantGrid(0:0.1:1)
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78 @test boundary_indices(g, LowerBoundary()) == 1
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79 @test boundary_indices(g, UpperBoundary()) == 11
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80
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81 gf = collect(g)
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82 @test gf[boundary_indices(g, LowerBoundary())] == gf[1]
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83 @test gf[boundary_indices(g, UpperBoundary())] == gf[11]
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84
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85 g = EquidistantGrid(2:0.1:10)
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86 @test boundary_indices(g, LowerBoundary()) == 1
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87 @test boundary_indices(g, UpperBoundary()) == 81
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88 end
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90 @testset "refine" begin
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91 g = EquidistantGrid(0:0.1:1)
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92 @test refine(g, 1) == g
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93 @test refine(g, 2) == EquidistantGrid(0:0.05:1)
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94 @test refine(g, 3) == EquidistantGrid(0:(0.1/3):1)
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95 end
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97 @testset "coarsen" begin
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98 g = EquidistantGrid(0:1:10)
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99 @test coarsen(g, 1) == g
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100 @test coarsen(g, 2) == EquidistantGrid(0:2:10)
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101
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102 g = EquidistantGrid(0:0.1:1)
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103 @test coarsen(g, 1) == g
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104 @test coarsen(g, 2) == EquidistantGrid(0:0.2:1)
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105
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106 g = EquidistantGrid(0:10)
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107 @test coarsen(g, 1) == EquidistantGrid(0:1:10)
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108 @test coarsen(g, 2) == EquidistantGrid(0:2:10)
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109
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110 @test_throws DomainError(3, "Size minus 1 must be divisible by the ratio.") coarsen(g, 3)
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111 end
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112 end
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115 @testset "equidistant_grid" begin
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116 @test equidistant_grid(0.0,1.0, 4) isa EquidistantGrid
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117 @test equidistant_grid((0.0,0.0),(8.0,5.0), 4, 3) isa TensorGrid
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118 @test equidistant_grid((0.0,),(8.0,), 4) isa TensorGrid
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119
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120 # constuctor
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121 @test_throws DomainError equidistant_grid(0.0, 1.0, 0)
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122 @test_throws DomainError equidistant_grid(1.0, 1.0, 1)
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123 @test_throws DomainError equidistant_grid(1.0, -1.0, 1)
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124
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125 @test_throws DomainError equidistant_grid((0.0,0.0),(1.0,1.0), 0, 0)
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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 @test_throws DomainError equidistant_grid((1.0,1.0),(-1.0,-1.0), 1, 1)
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128
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129 @test_throws ArgumentError equidistant_grid((0.0,),(8.0,5.0), 4, 3, 4)
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130
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131 @testset "Base" begin
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132 @test eltype(equidistant_grid(0.0, 1.0, 4)) == Float64
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133 @test eltype(equidistant_grid((0,0),(1,3), 4, 3)) <: AbstractVector{Float64}
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134
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135 @test size(equidistant_grid(0.0, 1.0, 4)) == (4,)
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136 @test size(equidistant_grid((0.0,0.0), (2.0,1.0), 5, 3)) == (5,3)
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137
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138 @test size(equidistant_grid((0.0,0.0), (2.0,1.0), 5, 3), 1) == 5
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139 @test size(equidistant_grid((0.0,0.0), (2.0,1.0), 5, 3), 2) == 3
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140
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141 @test ndims(equidistant_grid(0.0, 1.0, 4)) == 1
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142 @test ndims(equidistant_grid((0.0,0.0), (2.0,1.0), 5, 3)) == 2
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143 end
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144
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145 @testset "getindex" begin
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146 g = equidistant_grid((-1.0,0.0), (0.0,7.11), 5, 3)
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147 gp = collect(g);
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148 p = [(-1.,0.) (-1.,7.11/2) (-1.,7.11);
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149 (-0.75,0.) (-0.75,7.11/2) (-0.75,7.11);
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150 (-0.5,0.) (-0.5,7.11/2) (-0.5,7.11);
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151 (-0.25,0.) (-0.25,7.11/2) (-0.25,7.11);
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152 (0.,0.) (0.,7.11/2) (0.,7.11)]
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153 for i ∈ eachindex(gp)
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154 @test [gp[i]...] ≈ [p[i]...] atol=5e-13
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155 end
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156 end
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157
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158 @testset "equidistant_grid(::ParameterSpace)" begin
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159 ps = HyperBox((0,0),(2,1))
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160
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161 @test equidistant_grid(ps, 3,4) == equidistant_grid((0,0), (2,1), 3,4)
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162
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163 @test equidistant_grid(unitinterval(),3) == equidistant_grid(0,1,3)
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164 @test equidistant_grid(HyperBox((0,),(2,)),4) == equidistant_grid(@SVector[0], @SVector[2], 4)
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165 end
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166
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167
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168 @testset "equidistant_grid(::Chart)" begin
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169 c = Chart(unitsquare()) do (ξ,η)
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170 @SVector[2ξ, 3η]
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171 end
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172 Grids.jacobian(c::typeof(c), ξ̄) = @SMatrix[2 0; 0 3]
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173
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174 @test equidistant_grid(c, 5, 4) isa Grid
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175 end
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176 end
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177
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178
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179 @testset "change_length" begin
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180 @test Grids.change_length(0:20, 21) == 0:20
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181 @test Grids.change_length(0:20, 11) == 0:2:20
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182 @test Grids.change_length(0:2:20, 21) == 0:20
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183
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184 @test Grids.change_length(range(0,1,length=10), 10) == range(0,1,length=10)
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185 @test Grids.change_length(range(0,1,length=10), 5) == range(0,1,length=5)
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186 @test Grids.change_length(range(0,1,length=10), 20) == range(0,1,length=20)
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187
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188 @test Grids.change_length(LinRange(1,2,10),10) == LinRange(1,2,10)
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189 @test Grids.change_length(LinRange(1,2,10),15) == LinRange(1,2,15)
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190 end