#include "variant.hpp"
#include <gtest/gtest.h>

TEST(Variant, VariantToString) {
    EXPECT_EQ(cpp17::variant_to_string(42), "int:42");
    EXPECT_EQ(cpp17::variant_to_string(std::string{"hi"}), "string:hi");
}

TEST(Variant, SumNumericVariants) {
    const std::vector<cpp17::Value> values{1, 2.5, std::string{"x"}, 3.5};
    EXPECT_DOUBLE_EQ(cpp17::sum_numeric_variants(values), 7.0);
}

TEST(Variant, IsString) {
    EXPECT_TRUE(cpp17::is_string(std::string{"ok"}));
    EXPECT_FALSE(cpp17::is_string(1));
}