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#include "StarVariant.hpp"
#include "StarMaybe.hpp"
#include "gtest/gtest.h"
using namespace Star;
TEST(VariantTest, All) {
struct VariantTester {
shared_ptr<int> intptr;
};
MVariant<int, double, char, VariantTester> a, b;
EXPECT_EQ(a.typeIndex(), 0);
a = 'c';
EXPECT_EQ(a.typeIndex(), 3u);
EXPECT_TRUE(a.is<char>());
a.makeType(1);
EXPECT_EQ(a.get<int>(), 0);
EXPECT_TRUE(a.is<int>());
a = b;
EXPECT_TRUE(a.empty());
shared_ptr<int> intptr = make_shared<int>(42);
a = VariantTester{intptr};
b = VariantTester{intptr};
a = b;
a = a;
b = std::move(a);
a = std::move(b);
EXPECT_EQ(intptr.use_count(), 2);
a.reset();
EXPECT_EQ(intptr.use_count(), 1);
Variant<int, double, char> v(1.0);
MVariant<int, double, char> mv(v);
EXPECT_EQ(mv, 1.0);
v = 2;
mv = v;
EXPECT_EQ(mv, 2);
mv = '3';
v = mv.takeValue();
EXPECT_EQ(v, '3');
EXPECT_TRUE(mv.empty());
}
TEST(MaybeTest, All) {
struct MaybeTester {
shared_ptr<int> intptr;
};
Maybe<MaybeTester> a, b;
EXPECT_FALSE(a.isValid());
shared_ptr<int> intptr = make_shared<int>(42);
a = MaybeTester{intptr};
b = MaybeTester{intptr};
EXPECT_TRUE(a.isValid());
a = b;
a = a;
b = std::move(a);
a = std::move(b);
EXPECT_EQ(intptr.use_count(), 2);
a = {};
EXPECT_FALSE(a.isValid());
EXPECT_EQ(intptr.use_count(), 1);
}
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