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Add tests for in-place and copying std::transform #343

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Aug 31, 2021
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Add tests for in-place and copying std::transform #343

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82 changes: 82 additions & 0 deletions tests/iterator.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -104,6 +104,88 @@ TEST_CASE("iterator.transform_reduce")
test(llama::ArrayDims{4, 2, 4});
}

TEST_CASE("iterator.transform_inplace")
{
auto test = [](auto arrayDims)
{
auto view = llama::allocView(llama::mapping::AoS{arrayDims, Position{}});

int i = 0;
for(auto vd : view)
{
vd(tag::X{}) = ++i;
vd(tag::Y{}) = ++i;
vd(tag::Z{}) = ++i;
}

std::transform(
begin(view),
end(view),
begin(view),
[](llama::One<Position> p)
{
p *= 2;
return p;
});

i = 0;
for(auto vd : view)
{
CHECK(vd(tag::X{}) == ++i * 2);
CHECK(vd(tag::Y{}) == ++i * 2);
CHECK(vd(tag::Z{}) == ++i * 2);
}
};
test(llama::ArrayDims{32});
test(llama::ArrayDims{4, 8});
test(llama::ArrayDims{4, 2, 4});
}

TEST_CASE("iterator.transform_to")
{
auto test = [](auto arrayDims)
{
auto view = llama::allocView(llama::mapping::AoS{arrayDims, Position{}});

int i = 0;
for(auto vd : view)
{
vd(tag::X{}) = ++i;
vd(tag::Y{}) = ++i;
vd(tag::Z{}) = ++i;
}

auto dst = llama::allocView(llama::mapping::SoA{arrayDims, Position{}});
std::transform(
begin(view),
end(view),
begin(dst),
[](llama::One<Position> p)
{
p *= 2;
return p;
});

i = 0;
for(auto vd : view)
{
CHECK(vd(tag::X{}) == ++i);
CHECK(vd(tag::Y{}) == ++i);
CHECK(vd(tag::Z{}) == ++i);
}
i = 0;
for(auto vd : dst)
{
CHECK(vd(tag::X{}) == ++i * 2);
CHECK(vd(tag::Y{}) == ++i * 2);
CHECK(vd(tag::Z{}) == ++i * 2);
}
};
test(llama::ArrayDims{32});
test(llama::ArrayDims{4, 8});
test(llama::ArrayDims{4, 2, 4});
}

TEST_CASE("iterator.different_record_dim")
{
struct Pos1
Expand Down