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test/source/blender/blenlib/tests/BLI_virtual_array_test.cc
Sergey Sharybin c1bc70b711 Cleanup: Add a copyright notice to files and use SPDX format 
A lot of files were missing copyright field in the header and
the Blender Foundation contributed to them in a sense of bug
fixing and general maintenance.

This change makes it explicit that those files are at least
partially copyrighted by the Blender Foundation.

Note that this does not make it so the Blender Foundation is
the only holder of the copyright in those files, and developers
who do not have a signed contract with the foundation still
hold the copyright as well.

Another aspect of this change is using SPDX format for the
header. We already used it for the license specification,
and now we state it for the copyright as well, following the
FAQ:

    https://reuse.software/faq/
2023-05-31 16:19:06 +02:00

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/* SPDX-FileCopyrightText: 2023 Blender Foundation
*
* SPDX-License-Identifier: Apache-2.0 */
#include "BLI_array.hh"
#include "BLI_generic_virtual_array.hh"
#include "BLI_strict_flags.h"
#include "BLI_vector.hh"
#include "BLI_vector_set.hh"
#include "BLI_virtual_array.hh"
#include "testing/testing.h"
namespace blender::tests {
TEST(virtual_array, Span)
{
std::array<int, 5> data = {3, 4, 5, 6, 7};
VArray<int> varray = VArray<int>::ForSpan(data);
EXPECT_EQ(varray.size(), 5);
EXPECT_EQ(varray.get(0), 3);
EXPECT_EQ(varray.get(4), 7);
EXPECT_TRUE(varray.is_span());
EXPECT_FALSE(varray.is_single());
EXPECT_EQ(varray.get_internal_span().data(), data.data());
}
TEST(virtual_array, Single)
{
VArray<int> varray = VArray<int>::ForSingle(10, 4);
EXPECT_EQ(varray.size(), 4);
EXPECT_EQ(varray.get(0), 10);
EXPECT_EQ(varray.get(3), 10);
EXPECT_FALSE(varray.is_span());
EXPECT_TRUE(varray.is_single());
}
TEST(virtual_array, Array)
{
Array<int> array = {1, 2, 3, 5, 8};
{
VArray<int> varray = VArray<int>::ForContainer(array);
EXPECT_EQ(varray.size(), 5);
EXPECT_EQ(varray[0], 1);
EXPECT_EQ(varray[2], 3);
EXPECT_EQ(varray[3], 5);
EXPECT_TRUE(varray.is_span());
}
{
VArray<int> varray = VArray<int>::ForContainer(std::move(array));
EXPECT_EQ(varray.size(), 5);
EXPECT_EQ(varray[0], 1);
EXPECT_EQ(varray[2], 3);
EXPECT_EQ(varray[3], 5);
EXPECT_TRUE(varray.is_span());
}
{
VArray<int> varray = VArray<int>::ForContainer(array); /* NOLINT: bugprone-use-after-move */
EXPECT_TRUE(varray.is_empty());
}
}
TEST(virtual_array, Vector)
{
Vector<int> vector = {9, 8, 7, 6};
VArray<int> varray = VArray<int>::ForContainer(std::move(vector));
EXPECT_EQ(varray.size(), 4);
EXPECT_EQ(varray[0], 9);
EXPECT_EQ(varray[3], 6);
}
TEST(virtual_array, StdVector)
{
std::vector<int> vector = {5, 6, 7, 8};
VArray<int> varray = VArray<int>::ForContainer(std::move(vector));
EXPECT_EQ(varray.size(), 4);
EXPECT_EQ(varray[0], 5);
EXPECT_EQ(varray[1], 6);
}
TEST(virtual_array, StdArray)
{
std::array<int, 4> array = {2, 3, 4, 5};
VArray<int> varray = VArray<int>::ForContainer(std::move(array));
EXPECT_EQ(varray.size(), 4);
EXPECT_EQ(varray[0], 2);
EXPECT_EQ(varray[1], 3);
}
TEST(virtual_array, VectorSet)
{
VectorSet<int> vector_set = {5, 3, 7, 3, 3, 5, 1};
VArray<int> varray = VArray<int>::ForContainer(std::move(vector_set));
EXPECT_TRUE(vector_set.is_empty()); /* NOLINT: bugprone-use-after-move. */
EXPECT_EQ(varray.size(), 4);
EXPECT_EQ(varray[0], 5);
EXPECT_EQ(varray[1], 3);
EXPECT_EQ(varray[2], 7);
EXPECT_EQ(varray[3], 1);
}
TEST(virtual_array, Func)
{
auto func = [](int64_t index) { return int(index * index); };
VArray<int> varray = VArray<int>::ForFunc(10, func);
EXPECT_EQ(varray.size(), 10);
EXPECT_EQ(varray[0], 0);
EXPECT_EQ(varray[3], 9);
EXPECT_EQ(varray[9], 81);
}
TEST(virtual_array, AsSpan)
{
auto func = [](int64_t index) { return int(10 * index); };
VArray<int> func_varray = VArray<int>::ForFunc(10, func);
VArraySpan span_varray{func_varray};
EXPECT_EQ(span_varray.size(), 10);
Span<int> span = span_varray;
EXPECT_EQ(span.size(), 10);
EXPECT_EQ(span[0], 0);
EXPECT_EQ(span[3], 30);
EXPECT_EQ(span[6], 60);
}
static int get_x(const std::array<int, 3> &item)
{
return item[0];
}
static void set_x(std::array<int, 3> &item, int value)
{
item[0] = value;
}
TEST(virtual_array, DerivedSpan)
{
Vector<std::array<int, 3>> vector;
vector.append({3, 4, 5});
vector.append({1, 1, 1});
{
VArray<int> varray = VArray<int>::ForDerivedSpan<std::array<int, 3>, get_x>(vector);
EXPECT_EQ(varray.size(), 2);
EXPECT_EQ(varray[0], 3);
EXPECT_EQ(varray[1], 1);
}
{
VMutableArray<int> varray =
VMutableArray<int>::ForDerivedSpan<std::array<int, 3>, get_x, set_x>(vector);
EXPECT_EQ(varray.size(), 2);
EXPECT_EQ(varray[0], 3);
EXPECT_EQ(varray[1], 1);
varray.set(0, 10);
varray.set(1, 20);
EXPECT_EQ(vector[0][0], 10);
EXPECT_EQ(vector[1][0], 20);
}
}
TEST(virtual_array, MutableToImmutable)
{
std::array<int, 4> array = {4, 2, 6, 4};
{
VMutableArray<int> mutable_varray = VMutableArray<int>::ForSpan(array);
VArray<int> varray = mutable_varray;
EXPECT_TRUE(varray.is_span());
EXPECT_EQ(varray.size(), 4);
EXPECT_EQ(varray[1], 2);
EXPECT_EQ(mutable_varray.size(), 4);
}
{
VMutableArray<int> mutable_varray = VMutableArray<int>::ForSpan(array);
EXPECT_EQ(mutable_varray.size(), 4);
VArray<int> varray = std::move(mutable_varray);
EXPECT_TRUE(varray.is_span());
EXPECT_EQ(varray.size(), 4);
EXPECT_EQ(varray[1], 2);
EXPECT_EQ(mutable_varray.size(), 0); /* NOLINT: bugprone-use-after-move */
}
{
VArray<int> varray = VMutableArray<int>::ForSpan(array);
EXPECT_TRUE(varray.is_span());
EXPECT_EQ(varray.size(), 4);
EXPECT_EQ(varray[1], 2);
}
}
TEST(virtual_array, MaterializeCompressed)
{
IndexMaskMemory memory;
{
std::array<int, 10> array = {0, 10, 20, 30, 40, 50, 60, 70, 80, 90};
VArray<int> varray = VArray<int>::ForSpan(array);
std::array<int, 3> compressed_array;
varray.materialize_compressed(IndexMask::from_indices<int>({3, 6, 7}, memory),
compressed_array);
EXPECT_EQ(compressed_array[0], 30);
EXPECT_EQ(compressed_array[1], 60);
EXPECT_EQ(compressed_array[2], 70);
varray.materialize_compressed_to_uninitialized(IndexMask::from_indices<int>({2, 8, 9}, memory),
compressed_array);
EXPECT_EQ(compressed_array[0], 20);
EXPECT_EQ(compressed_array[1], 80);
EXPECT_EQ(compressed_array[2], 90);
}
{
VArray<int> varray = VArray<int>::ForSingle(4, 10);
std::array<int, 3> compressed_array;
varray.materialize_compressed(IndexMask::from_indices<int>({2, 6, 7}, memory),
compressed_array);
EXPECT_EQ(compressed_array[0], 4);
EXPECT_EQ(compressed_array[1], 4);
EXPECT_EQ(compressed_array[2], 4);
compressed_array.fill(0);
varray.materialize_compressed_to_uninitialized(IndexMask::from_indices<int>({0, 1, 2}, memory),
compressed_array);
EXPECT_EQ(compressed_array[0], 4);
EXPECT_EQ(compressed_array[1], 4);
EXPECT_EQ(compressed_array[2], 4);
}
{
VArray<int> varray = VArray<int>::ForFunc(10, [](const int64_t i) { return int(i * i); });
std::array<int, 3> compressed_array;
varray.materialize_compressed(IndexMask::from_indices<int>({5, 7, 8}, memory),
compressed_array);
EXPECT_EQ(compressed_array[0], 25);
EXPECT_EQ(compressed_array[1], 49);
EXPECT_EQ(compressed_array[2], 64);
varray.materialize_compressed_to_uninitialized(IndexMask::from_indices<int>({1, 2, 3}, memory),
compressed_array);
EXPECT_EQ(compressed_array[0], 1);
EXPECT_EQ(compressed_array[1], 4);
EXPECT_EQ(compressed_array[2], 9);
}
}
TEST(virtual_array, EmptySpanWrapper)
{
{
VArray<int> varray;
VArraySpan<int> span1 = varray;
EXPECT_TRUE(span1.is_empty());
VArraySpan<int> span2 = std::move(span1);
EXPECT_TRUE(span2.is_empty());
}
{
VMutableArray<int> varray;
MutableVArraySpan<int> span1 = varray;
EXPECT_TRUE(span1.is_empty());
MutableVArraySpan<int> span2 = std::move(span1);
EXPECT_TRUE(span2.is_empty());
}
{
GVArray varray;
GVArraySpan span1 = varray;
EXPECT_TRUE(span1.is_empty());
GVArraySpan span2 = std::move(span1);
EXPECT_TRUE(span2.is_empty());
}
{
GVMutableArray varray;
GMutableVArraySpan span1 = varray;
EXPECT_TRUE(span1.is_empty());
GMutableVArraySpan span2 = std::move(span1);
EXPECT_TRUE(span2.is_empty());
}
}
} // namespace blender::tests
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