69 lines
1.4 KiB
C++
69 lines
1.4 KiB
C++
#include <gtest/gtest.h>
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#include <m5_utility/stl/optional.hpp>
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#include <vector>
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namespace constructor {
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struct foo {
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foo() = default;
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foo(foo &) = delete;
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foo(foo &&) noexcept
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{
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}
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};
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} // namespace constructor
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TEST(Optional, Constructors)
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{
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m5::stl::optional<int> o1;
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EXPECT_TRUE(!o1);
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m5::stl::optional<int> o2 = m5::stl::nullopt;
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EXPECT_TRUE(!o2);
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m5::stl::optional<int> o3 = 42;
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EXPECT_TRUE(*o3 == 42);
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m5::stl::optional<int> o4 = o3;
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EXPECT_TRUE(*o4 == 42);
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m5::stl::optional<int> o5 = o1;
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EXPECT_TRUE(!o5);
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m5::stl::optional<int> o6 = std::move(o3);
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EXPECT_TRUE(*o6 == 42);
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m5::stl::optional<short> o7 = 42;
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EXPECT_TRUE(*o7 == 42);
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m5::stl::optional<int> o8 = o7;
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EXPECT_TRUE(*o8 == 42);
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m5::stl::optional<int> o9 = std::move(o7);
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EXPECT_TRUE(*o9 == 42);
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{
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m5::stl::optional<int &> o;
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EXPECT_TRUE(!o);
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m5::stl::optional<int &> oo = o;
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EXPECT_TRUE(!oo);
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}
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{
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auto i = 42;
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m5::stl::optional<int &> o = i;
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EXPECT_TRUE(o);
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EXPECT_TRUE(*o == 42);
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m5::stl::optional<int &> oo = o;
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EXPECT_TRUE(oo);
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EXPECT_TRUE(*oo == 42);
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}
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std::vector<constructor::foo> v;
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v.emplace_back();
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m5::stl::optional<std::vector<constructor::foo>> ov = std::move(v);
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EXPECT_TRUE(ov->size() == 1);
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}
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