osrm-backend/third_party/unordered_dense/test/unit/copyassignment.cpp

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#include <ankerl/unordered_dense.h>
#include <app/doctest.h>
#include <string>
TEST_CASE_MAP("copyassignment", std::string, std::string) {
auto map = map_t();
auto tmp = map_t();
map.emplace("a", "b");
map = tmp;
map.emplace("c", "d");
REQUIRE(map.size() == 1);
REQUIRE(map["c"] == "d");
REQUIRE(map.size() == 1);
REQUIRE(tmp.size() == 0);
map["e"] = "f";
REQUIRE(map.size() == 2);
REQUIRE(tmp.size() == 0);
tmp["g"] = "h";
REQUIRE(map.size() == 2);
REQUIRE(tmp.size() == 1);
}