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#include "Resample/Slice/KzComputation.h"
#include "Base/Const/Units.h"
#include "Base/Vector/GisasDirection.h"
#include "Resample/Processed/ReSample.h"
#include "Sample/Material/MaterialFactoryFuncs.h"
#include "Sample/Multilayer/Layer.h"
#include "Sample/Multilayer/Sample.h"
#include "Sample/StandardSample/PlainMultiLayerBySLDBuilder.h"
#include "Tests/GTestWrapper/google_test.h"
TEST(KzComputation, initial)
{
const complex_t sld_0(0.0, 0.0);
const complex_t sld_1(8.0241e-06, 6.0448e-8);
const complex_t sld_2(4.0241e-06, 2.0448e-8);
const complex_t sld_3(1.0241e-06, 2.0448e-8);
const complex_t sld_4(0.0, 2.0448e-6);
Sample mLayer;
Layer layer0(MaterialBySLD("m0", sld_0.real(), sld_0.imag()));
Layer layer1(MaterialBySLD("m1", sld_1.real(), sld_1.imag()), 10);
Layer layer2(MaterialBySLD("m2", sld_2.real(), sld_2.imag()), 10);
Layer layer3(MaterialBySLD("m3", sld_3.real(), sld_3.imag()), 10);
Layer layer4(MaterialBySLD("m4", sld_4.real(), sld_4.imag()));
mLayer.addLayer(layer0);
mLayer.addLayer(layer1);
mLayer.addLayer(layer2);
mLayer.addLayer(layer3);
mLayer.addLayer(layer4);
R3 k = vecOfLambdaAlphaPhi(1.0, -1.0 * Units::deg);
const auto re_sample = ReSample::make(mLayer);
const SliceStack& slices = re_sample.averageSlices();
auto res_ref = Compute::Kz::computeReducedKz(slices, k);
auto res_ri = Compute::Kz::computeKzFromRefIndices(slices, k);
auto res_sld = Compute::Kz::computeKzFromSLDs(slices, k.z());
EXPECT_EQ(res_ref.size(), res_sld.size());
EXPECT_EQ(res_ref.size(), res_ri.size());
for (size_t i = 0; i < res_ref.size(); ++i) {
EXPECT_NEAR(res_ref[i].real(), res_sld[i].real(), 1e-10);
EXPECT_NEAR(res_ref[i].imag(), res_sld[i].imag(), 1e-10);
EXPECT_NEAR(res_ref[i].real(), res_ri[i].real(), 1e-10);
EXPECT_NEAR(res_ref[i].imag(), res_ri[i].imag(), 1e-10);
}
}
TEST(KzComputation, negativeKz)
{
const complex_t sld_0(0.0, 0.0);
const complex_t sld_1(8.0241e-06, 6.0448e-8);
const complex_t sld_2(4.0241e-06, 2.0448e-8);
const complex_t sld_3(1.0241e-06, 2.0448e-8);
const complex_t sld_4(0.0, 2.0448e-6);
Sample mLayer;
Layer layer0(MaterialBySLD("m0", sld_0.real(), sld_0.imag()));
Layer layer1(MaterialBySLD("m1", sld_1.real(), sld_1.imag()), 10);
Layer layer2(MaterialBySLD("m2", sld_2.real(), sld_2.imag()), 10);
Layer layer3(MaterialBySLD("m3", sld_3.real(), sld_3.imag()), 10);
Layer layer4(MaterialBySLD("m4", sld_4.real(), sld_4.imag()));
mLayer.addLayer(layer0);
mLayer.addLayer(layer1);
mLayer.addLayer(layer2);
mLayer.addLayer(layer3);
mLayer.addLayer(layer4);
R3 k = vecOfLambdaAlphaPhi(1.0, -1.0 * Units::deg);
ReSample sample = ReSample::make(mLayer);
const SliceStack& slices = sample.averageSlices();
auto res_ref = Compute::Kz::computeReducedKz(slices, k);
auto res_ri = Compute::Kz::computeKzFromRefIndices(slices, k);
auto res_sld = Compute::Kz::computeKzFromSLDs(slices, k.z());
EXPECT_EQ(res_ref.size(), res_sld.size());
EXPECT_EQ(res_ref.size(), res_ri.size());
for (size_t i = 0; i < res_ref.size(); ++i) {
EXPECT_NEAR(res_ref[i].real(), res_sld[i].real(), 1e-10);
EXPECT_NEAR(res_ref[i].imag(), res_sld[i].imag(), 1e-10);
EXPECT_NEAR(res_ref[i].real(), res_ri[i].real(), 1e-10);
EXPECT_NEAR(res_ref[i].imag(), res_ri[i].imag(), 1e-10);
}
}
TEST(KzComputation, absorptiveAmbience)
{
const complex_t sld_0(8.0241e-06, 6.0448e-5);
const complex_t sld_1(8.0241e-06, 6.0448e-8);
const complex_t sld_2(4.0241e-06, 2.0448e-8);
const complex_t sld_3(1.0241e-06, 2.0448e-8);
const complex_t sld_4(0.0, 2.0448e-6);
Sample mLayer;
Layer layer0(MaterialBySLD("m0", sld_0.real(), sld_0.imag()));
Layer layer1(MaterialBySLD("m1", sld_1.real(), sld_1.imag()), 10);
Layer layer2(MaterialBySLD("m2", sld_2.real(), sld_2.imag()), 10);
Layer layer3(MaterialBySLD("m3", sld_3.real(), sld_3.imag()), 10);
Layer layer4(MaterialBySLD("m4", sld_4.real(), sld_4.imag()));
mLayer.addLayer(layer0);
mLayer.addLayer(layer1);
mLayer.addLayer(layer2);
mLayer.addLayer(layer3);
mLayer.addLayer(layer4);
R3 k = vecOfLambdaAlphaPhi(1.0, 1.0 * Units::deg);
ReSample sample(ReSample::make(mLayer));
const SliceStack& slices = sample.averageSlices();
auto res_ri = Compute::Kz::computeKzFromRefIndices(slices, k);
auto res_sld = Compute::Kz::computeKzFromSLDs(slices, k.z());
EXPECT_EQ(res_ri.size(), res_sld.size());
for (size_t i = 0; i < res_ri.size(); ++i) {
EXPECT_NEAR(res_ri[i].real(), res_sld[i].real(), 1e-10);
EXPECT_NEAR(res_ri[i].imag(), res_sld[i].imag(), 1e-10);
}
}
TEST(KzComputation, TiNiSampleWithRoughness)
{
std::unique_ptr<Sample> sample(ExemplarySamples::createPlainMultiLayerBySLD());
R3 k = vecOfLambdaAlphaPhi(1.0, 0.0001 * Units::deg);
const auto re_sample = ReSample::make(*sample);
const SliceStack& slices = re_sample.averageSlices();
auto res_ri = Compute::Kz::computeKzFromRefIndices(slices, k);
auto res_sld = Compute::Kz::computeKzFromSLDs(slices, k.z());
EXPECT_EQ(res_ri.size(), res_sld.size());
for (size_t i = 0; i < res_ri.size(); ++i) {
EXPECT_NEAR(res_ri[i].real(), res_sld[i].real(), 1e-10);
EXPECT_NEAR(res_ri[i].imag(), res_sld[i].imag(), 1e-10);
}
}
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