psemek/libs/util/tests/ndarray.cpp

123 lines
2.4 KiB
C++

#include <psemek/test/test.hpp>
#include <psemek/util/ndarray.hpp>
using namespace psemek::util;
test_case(util_ndarray_empty)
{
ndarray<int, 1> a;
expect_equal(a.size(), 0);
expect(a.empty());
ndarray<int, 2> b;
expect_equal(b.size(), 0);
expect(b.empty());
ndarray<int, 3> c;
expect_equal(c.size(), 0);
expect(c.empty());
}
test_case(util_ndarray_size)
{
ndarray<int, 1> a({16});
expect(!a.empty());
expect_equal(a.size(), 16);
expect_equal(a.width(), 16);
ndarray<int, 2> b({8, 16});
expect(!b.empty());
expect_equal(b.size(), 8 * 16);
expect_equal(b.width(), 8);
expect_equal(b.height(), 16);
ndarray<int, 3> c({4, 8, 16});
expect(!c.empty());
expect_equal(c.size(), 4 * 8 * 16);
expect_equal(c.width(), 4);
expect_equal(c.height(), 8);
expect_equal(c.depth(), 16);
}
test_case(util_ndarray_init)
{
ndarray<int, 2> a({16, 16}, 42);
for (std::size_t i = 0; i < a.width(); ++i)
for (std::size_t j = 0; j < a.height(); ++j)
expect_equal(a(i, j), 42);
}
test_case(util_ndarray_release)
{
std::unique_ptr<int[]> p(new int[256]);
auto q = p.get();
ndarray<int, 2> a({16, 16}, std::move(p));
expect_equal(a.size(), 256);
expect_equal(a.width(), 16);
expect_equal(a.height(), 16);
expect_equal_ptr(a.data(), q);
p = a.release();
expect_equal(a.size(), 0);
expect(a.empty());
expect_equal_ptr(a.data(), nullptr);
expect_equal_ptr(p.get(), q);
}
test_case(util_ndarray_move)
{
ndarray<int, 2> a({16, 16}, 42);
auto p = a.data();
ndarray<int, 2> b(std::move(a));
expect(a.empty());
expect_equal(a.size(), 0);
expect(!b.empty());
expect_equal(b.size(), 256);
expect_equal_ptr(b.data(), p);
ndarray<int, 2> c;
c = std::move(b);
expect(b.empty());
expect_equal(b.size(), 0);
expect(!c.empty());
expect_equal(c.size(), 256);
expect_equal_ptr(c.data(), p);
}
test_case(util_ndarray_copy)
{
ndarray<int, 2> a({16, 16}, 42);
ndarray<int, 2> b(a.copy());
expect(!a.empty());
expect(!b.empty());
expect_equal(a.size(), b.size());
expect_equal(a.size(), 256);
expect_different_ptr(a.data(), b.data());
}
test_case(util_ndarray_lifetime)
{
std::weak_ptr<int> p;
{
ndarray<std::shared_ptr<int>, 2> a({16, 16}, std::make_shared<int>(42));
p = a(0, 0);
for (std::size_t i = 0; i < a.width(); ++i)
{
for (std::size_t j = 0; j < a.height(); ++j)
{
expect(a(i, j));
expect_equal(*a(i, j), 42);
expect_equal(a(i, j).use_count(), a.size());
}
}
}
expect(!p.lock());
expect_equal(p.use_count(), 0);
}