56 lines
1.4 KiB
C++
56 lines
1.4 KiB
C++
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#include <cstddef>
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#include <type_traits>
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#include <utility>
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#include <vector>
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#include <gtest/gtest.h>
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#include <entt/core/iterator.hpp>
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struct clazz {
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int value{0};
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};
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TEST(InputIteratorPointer, Functionalities) {
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clazz instance{};
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entt::input_iterator_pointer ptr{std::move(instance)};
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ptr->value = 42;
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ASSERT_EQ(instance.value, 0);
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ASSERT_EQ(ptr->value, 42);
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ASSERT_EQ(ptr->value, (*ptr).value);
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ASSERT_EQ(ptr.operator->(), &ptr.operator*());
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}
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TEST(IotaIterator, Functionalities) {
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entt::iota_iterator<std::size_t> first{};
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const entt::iota_iterator<std::size_t> last{2u};
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ASSERT_NE(first, last);
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ASSERT_FALSE(first == last);
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ASSERT_TRUE(first != last);
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ASSERT_EQ(*first++, 0u);
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ASSERT_EQ(*first, 1u);
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ASSERT_EQ(*++first, *last);
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ASSERT_EQ(*first, 2u);
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}
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TEST(IterableAdaptor, Functionalities) {
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std::vector<int> vec{1, 2};
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entt::iterable_adaptor iterable{vec.begin(), vec.end()};
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decltype(iterable) other{};
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ASSERT_NO_FATAL_FAILURE(other = iterable);
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ASSERT_NO_FATAL_FAILURE(std::swap(other, iterable));
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ASSERT_EQ(iterable.begin(), vec.begin());
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ASSERT_EQ(iterable.end(), vec.end());
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ASSERT_EQ(*iterable.cbegin(), 1);
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ASSERT_EQ(*++iterable.cbegin(), 2);
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ASSERT_EQ(++iterable.cbegin(), --iterable.end());
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for(auto value: entt::iterable_adaptor<const int *, const void *>{vec.data(), vec.data() + 1u}) {
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ASSERT_EQ(value, 1);
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}
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}
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