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#include "vtkDataSetAttributes.h"
#include "vtkDoubleArray.h"
#include "vtkIntArray.h"
#include "vtkNew.h"
#include "vtkSmartPointer.h"
#include <string>
namespace
{
template <typename T>
vtkSmartPointer<T> CreateArray(const char* aname, int num_comps, vtkIdType numTuples)
{
auto array = vtkSmartPointer<T>::New();
array->SetName(aname);
array->SetNumberOfComponents(num_comps);
array->SetNumberOfTuples(numTuples);
array->FillValue(typename T::ValueType());
return array;
}
#define EXPECT_THAT(v, m) \
do \
{ \
if ((v) != (m)) \
{ \
cerr << "FAILED at line " << __LINE__ << ": \n " << #v << " must match " << #m << endl; \
return EXIT_FAILURE; \
} \
} while (false)
}
int TestFieldList(int, char*[])
{
{
// For arrays without names, ensure we are doing a order-dependent matching.
// For attributes, the attribute flag is preserved if the same arrays is
// consistently flagged as an attribute on all DSA instances.
vtkNew<vtkDataSetAttributes> dsa0;
dsa0->SetScalars(CreateArray<vtkDoubleArray>(nullptr, 1, 20));
dsa0->AddArray(CreateArray<vtkDoubleArray>(nullptr, 2, 20));
dsa0->SetVectors(CreateArray<vtkDoubleArray>(nullptr, 3, 20));
EXPECT_THAT(dsa0->GetNumberOfArrays(), 3);
vtkNew<vtkDataSetAttributes> dsa1;
dsa1->SetScalars(CreateArray<vtkDoubleArray>(nullptr, 1, 20));
dsa1->AddArray(CreateArray<vtkDoubleArray>(nullptr, 3, 20));
dsa1->AddArray(CreateArray<vtkDoubleArray>(nullptr, 3, 20));
EXPECT_THAT(dsa1->GetNumberOfArrays(), 3);
vtkDataSetAttributes::FieldList fl;
fl.InitializeFieldList(dsa0);
fl.IntersectFieldList(dsa1);
vtkNew<vtkDataSetAttributes> output;
fl.CopyAllocate(output, vtkDataSetAttributes::COPYTUPLE, 0, 0);
EXPECT_THAT(output->GetNumberOfArrays(), 2);
EXPECT_THAT(output->GetArray(0)->GetNumberOfComponents(), 1);
EXPECT_THAT(output->GetArray(1)->GetNumberOfComponents(), 3);
EXPECT_THAT(output->GetVectors(), nullptr);
EXPECT_THAT(output->GetScalars() != nullptr, true);
fl.InitializeFieldList(dsa0);
fl.UnionFieldList(dsa1);
output->Initialize();
fl.CopyAllocate(output, vtkDataSetAttributes::COPYTUPLE, 0, 0);
EXPECT_THAT(output->GetNumberOfArrays(), 4);
EXPECT_THAT(output->GetArray(0)->GetNumberOfComponents(), 1);
EXPECT_THAT(output->GetArray(1)->GetNumberOfComponents(), 2);
EXPECT_THAT(output->GetArray(2)->GetNumberOfComponents(), 3);
EXPECT_THAT(output->GetArray(3)->GetNumberOfComponents(), 3);
EXPECT_THAT(output->GetVectors(), nullptr);
EXPECT_THAT(output->GetScalars() != nullptr, true);
// just to increase coverage.
fl.PrintSelf(cout, vtkIndent());
}
{
// If inputs arrays with different names for attributes,
// make sure output doesn't have either of the arrays flagged as attributes.
vtkNew<vtkDataSetAttributes> dsa0;
dsa0->SetScalars(CreateArray<vtkDoubleArray>("scalars", 1, 20));
dsa0->AddArray(CreateArray<vtkDoubleArray>("vectors", 3, 20));
dsa0->AddArray(CreateArray<vtkDoubleArray>("common", 1, 20));
dsa0->AddArray(CreateArray<vtkDoubleArray>("uncommon0", 1, 20));
vtkNew<vtkDataSetAttributes> dsa1;
dsa1->AddArray(CreateArray<vtkDoubleArray>("scalars", 1, 20));
dsa1->SetVectors(CreateArray<vtkDoubleArray>("vectors", 3, 20));
dsa1->AddArray(CreateArray<vtkDoubleArray>("common", 1, 20));
dsa0->AddArray(CreateArray<vtkDoubleArray>("uncommon1", 1, 20));
vtkDataSetAttributes::FieldList fl;
fl.InitializeFieldList(dsa0);
fl.IntersectFieldList(dsa1);
vtkNew<vtkDataSetAttributes> output;
fl.CopyAllocate(output, vtkDataSetAttributes::COPYTUPLE, 0, 0);
EXPECT_THAT(output->GetNumberOfArrays(), 3);
EXPECT_THAT(output->GetArray("uncommon0"), nullptr);
EXPECT_THAT(output->GetArray("uncommon1"), nullptr);
EXPECT_THAT(output->GetScalars(), nullptr);
EXPECT_THAT(output->GetVectors(), nullptr);
EXPECT_THAT(output->GetArray("scalars") != nullptr, true);
EXPECT_THAT(output->GetArray("vectors") != nullptr, true);
fl.InitializeFieldList(dsa0);
fl.UnionFieldList(dsa1);
output->Initialize();
fl.CopyAllocate(output, vtkDataSetAttributes::COPYTUPLE, 0, 0);
EXPECT_THAT(output->GetNumberOfArrays(), 5);
EXPECT_THAT(output->GetScalars(), nullptr);
EXPECT_THAT(output->GetVectors(), nullptr);
}
return EXIT_SUCCESS;
}
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