13f179a9c0
I've done this a few times and would have benefited from a utility function for it, apparently it's done in a few more places too. The utilities aren't multithreaded for now, it doesn't seem important and often multithreading happens at a different level of the call stack anyway. Pull Request: https://projects.blender.org/blender/blender/pulls/127517
28 lines
834 B
C++
28 lines
834 B
C++
/* SPDX-FileCopyrightText: 2024 Blender Authors
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*
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* SPDX-License-Identifier: Apache-2.0 */
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#include "testing/testing.h"
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#include "BLI_index_mask.hh"
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#include "BLI_offset_indices.hh"
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#include "BLI_vector.hh"
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#include "BLI_strict_flags.h" /* Keep last. */
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namespace blender::offset_indices::tests {
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TEST(offset_indices, SumSizes)
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{
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Vector<int> data = {3, 2, 1, 5, -1};
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const OffsetIndices<int> offsets = accumulate_counts_to_offsets(data);
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EXPECT_EQ(sum_group_sizes(offsets, {0, 1, 2, 3}), 11);
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EXPECT_EQ(sum_group_sizes(offsets, {3, 2, 1, 0}), 11);
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EXPECT_EQ(sum_group_sizes(offsets, {3, 0}), 8);
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EXPECT_EQ(sum_group_sizes(offsets, IndexRange(4)), 11);
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EXPECT_EQ(sum_group_sizes(offsets, IndexMask(4)), 11);
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EXPECT_EQ(sum_group_sizes(offsets, IndexMask(1)), 3);
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}
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} // namespace blender::offset_indices::tests
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