diff options
Diffstat (limited to 'src/third_party/variant-1.3.0/test/hash.cpp')
-rw-r--r-- | src/third_party/variant-1.3.0/test/hash.cpp | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/third_party/variant-1.3.0/test/hash.cpp b/src/third_party/variant-1.3.0/test/hash.cpp new file mode 100644 index 00000000000..4b4db44dbdb --- /dev/null +++ b/src/third_party/variant-1.3.0/test/hash.cpp @@ -0,0 +1,31 @@ +// MPark.Variant +// +// Copyright Michael Park, 2015-2017 +// +// Distributed under the Boost Software License, Version 1.0. +// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) + +#include <mpark/variant.hpp> + +#include <string> + +#include <gtest/gtest.h> + +TEST(Hash, Monostate) { + mpark::variant<int, mpark::monostate, std::string> v(mpark::monostate{}); + // Construct hash function objects. + std::hash<mpark::monostate> monostate_hash; + std::hash<mpark::variant<int, mpark::monostate, std::string>> variant_hash; + // Check the hash. + EXPECT_NE(monostate_hash(mpark::monostate{}), variant_hash(v)); +} + +TEST(Hash, String) { + mpark::variant<int, std::string> v("hello"); + EXPECT_EQ("hello", mpark::get<std::string>(v)); + // Construct hash function objects. + std::hash<std::string> string_hash; + std::hash<mpark::variant<int, std::string>> variant_hash; + // Check the hash. + EXPECT_NE(string_hash("hello"), variant_hash(v)); +} |