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annotate test/SbpOperators/boundaryops/normal_derivative_test.jl @ 728:45966c77cb20 feature/selectable_tests

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Split tests for SbpOperators over several files
author Jonatan Werpers <jonatan@werpers.com>
date Wed, 17 Mar 2021 20:34:40 +0100
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children 6114274447f5
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45966c77cb20 Split tests for SbpOperators over several files
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1 using Test
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2
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3 using Sbplib.SbpOperators
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4 using Sbplib.Grids
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5
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6 @testset "normal_derivative" begin
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7 g_1D = EquidistantGrid(11, 0.0, 1.0)
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8 g_2D = EquidistantGrid((11,12), (0.0, 0.0), (1.0,1.0))
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9 @testset "normal_derivative" begin
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10 op = read_D2_operator(sbp_operators_path()*"standard_diagonal.toml"; order=4)
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11 @testset "1D" begin
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12 d_l = normal_derivative(g_1D, op.dClosure, Lower())
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13 @test d_l == normal_derivative(g_1D, op.dClosure, CartesianBoundary{1,Lower}())
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14 @test d_l isa BoundaryOperator{T,Lower} where T
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15 @test d_l isa TensorMapping{T,0,1} where T
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16 end
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17 @testset "2D" begin
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18 op = read_D2_operator(sbp_operators_path()*"standard_diagonal.toml"; order=4)
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19 d_w = normal_derivative(g_2D, op.dClosure, CartesianBoundary{1,Lower}())
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20 d_n = normal_derivative(g_2D, op.dClosure, CartesianBoundary{2,Upper}())
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21 Ix = IdentityMapping{Float64}((size(g_2D)[1],))
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22 Iy = IdentityMapping{Float64}((size(g_2D)[2],))
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23 d_l = normal_derivative(restrict(g_2D,1),op.dClosure,Lower())
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24 d_r = normal_derivative(restrict(g_2D,2),op.dClosure,Upper())
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25 @test d_w == d_l⊗Iy
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26 @test d_n == Ix⊗d_r
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27 @test d_w isa TensorMapping{T,1,2} where T
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28 @test d_n isa TensorMapping{T,1,2} where T
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29 end
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30 end
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31 @testset "Accuracy" begin
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32 v = evalOn(g_2D, (x,y)-> x^2 + (y-1)^2 + x*y)
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33 v∂x = evalOn(g_2D, (x,y)-> 2*x + y)
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34 v∂y = evalOn(g_2D, (x,y)-> 2*(y-1) + x)
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35 # TODO: Test for higher order polynomials?
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36 @testset "2nd order" begin
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37 op = read_D2_operator(sbp_operators_path()*"standard_diagonal.toml"; order=2)
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38 d_w = normal_derivative(g_2D, op.dClosure, CartesianBoundary{1,Lower}())
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39 d_e = normal_derivative(g_2D, op.dClosure, CartesianBoundary{1,Upper}())
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40 d_s = normal_derivative(g_2D, op.dClosure, CartesianBoundary{2,Lower}())
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41 d_n = normal_derivative(g_2D, op.dClosure, CartesianBoundary{2,Upper}())
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42
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43 @test d_w*v ≈ v∂x[1,:] atol = 1e-13
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44 @test d_e*v ≈ -v∂x[end,:] atol = 1e-13
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45 @test d_s*v ≈ v∂y[:,1] atol = 1e-13
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46 @test d_n*v ≈ -v∂y[:,end] atol = 1e-13
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47 end
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48
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49 @testset "4th order" begin
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50 op = read_D2_operator(sbp_operators_path()*"standard_diagonal.toml"; order=4)
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51 d_w = normal_derivative(g_2D, op.dClosure, CartesianBoundary{1,Lower}())
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52 d_e = normal_derivative(g_2D, op.dClosure, CartesianBoundary{1,Upper}())
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53 d_s = normal_derivative(g_2D, op.dClosure, CartesianBoundary{2,Lower}())
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54 d_n = normal_derivative(g_2D, op.dClosure, CartesianBoundary{2,Upper}())
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55
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56 @test d_w*v ≈ v∂x[1,:] atol = 1e-13
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57 @test d_e*v ≈ -v∂x[end,:] atol = 1e-13
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58 @test d_s*v ≈ v∂y[:,1] atol = 1e-13
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59 @test d_n*v ≈ -v∂y[:,end] atol = 1e-13
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60 end
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61 end
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62 end