Differential D15387 Diff 53432 source/blender/blenkernel/intern/attribute_math_test.cc

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source/blender/blenkernel/intern/attribute_math_test.cc

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				#include "BKE_attribute_math.hh"

				#include "BKE_type_conversions.hh"
				#include "BLI_vector_set.hh"

				#include "testing/testing.h"

				#include "CLG_log.h"

				namespace blender::bke::tests {

				TEST(default_mixer, attributes_type_accumulate_finalize)
				{
				const int size = 10;
				const int mixing_number = 10;

				Array<eCustomDataType> attribute_types(
				{CD_PROP_BOOL, CD_PROP_FLOAT, CD_PROP_FLOAT2, CD_PROP_FLOAT3, CD_PROP_INT32, CD_PROP_COLOR});

				for (const eCustomDataType data_type : attribute_types) {
				attribute_math::convert_to_static_type(data_type, [&](auto dummy) {
				using T = decltype(dummy);
				Array<T> set_of_values(size);
				attribute_math::DefaultMixer<T> mixer(set_of_values.as_mutable_span());
				VArray<int> indices = VArray<int>::ForFunc(size, [&](const int index) { return index; });
				/* Set of random (index range) values such type. */
				auto values = get_implicit_type_conversions().try_convert(indices, CPPType::get<T>());
				/* Repeat mixing or each elements of Default Mixer by mixing_number times. */
				for (const int index : values.index_range()) {
				for (const int step : IndexRange(mixing_number)) {
				T value;
				values.get(index, &value);
				mixer.mix_in(index, value, 1.0f);
				}
				}
				/* First value always is equal. */
				for (const int index : IndexRange(1, values.size() - 1)) {
				T value;
				values.get(index, &value);
				EXPECT_NE(set_of_values[index], value)
				<< "Values after " << mixing_number << " count mixing not valid at " << index
				<< " index."
				<< " For type " << attribute_math::default_name<T>();
				}
				/* Mixer for cumulative types (itn, bol) requires the use of finalize to optimize
				* performance. */
				mixer.finalize();
				/*
				* Finalize divde each elements of DefaultMixer by count (summ of 1.0f factors x
				* mixing_number) And after the DefaultMixer will contain index value.
				*/
				for (const int index : values.index_range()) {
				T value;
				values.get(index, &value);
				EXPECT_EQ(set_of_values[index], value)
				<< "Values after mixing and finalize not valid at " << index << " index."
				<< " For type " << attribute_math::default_name<T>();
				}
				});
				}
				}

				} // namespace blender::bke::tests
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