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#include <catch2/catch_all.hpp>
#include <tl/optional.hpp>
TEST_CASE("Swap value", "[swap.value]") {
tl::optional<int> o1 = 42;
tl::optional<int> o2 = 12;
o1.swap(o2);
CHECK(o1.value() == 12);
CHECK(o2.value() == 42);
}
TEST_CASE("Swap value with null intialized", "[swap.value_nullopt]") {
tl::optional<int> o1 = 42;
tl::optional<int> o2 = tl::nullopt;
o1.swap(o2);
CHECK(!o1.has_value());
CHECK(o2.value() == 42);
}
TEST_CASE("Swap null intialized with value", "[swap.nullopt_value]") {
tl::optional<int> o1 = tl::nullopt;
tl::optional<int> o2 = 42;
o1.swap(o2);
CHECK(o1.value() == 42);
CHECK(!o2.has_value());
}
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