message: attempting to fix coverage. testing that reserve is called
diff: @@ -160,12 +160,28 @@ TEST_CASE("value conversion")
  {
  std::forward_list<json> a = j.get<std::forward_list<json>>();
  CHECK(json(a) == j);
  +
  + CHECK_THROWS_AS(json(json::value_t::null).get<std::forward_list<json>>(), std::logic_error);
  + CHECK_THROWS_WITH(json(json::value_t::null).get<std::forward_list<json>>(),
  + "type must be array, but is null");
  }
  SECTION("std::vector<json>")
  {
  std::vector<json> a = j.get<std::vector<json>>();
  CHECK(json(a) == j);
  +
  + CHECK_THROWS_AS(json(json::value_t::null).get<std::vector<json>>(), std::logic_error);
  + CHECK_THROWS_WITH(json(json::value_t::null).get<std::vector<json>>(),
  + "type must be array, but is null");
  +
  + SECTION("reserve is called on containers that supports it")
  + {
  + // making the call to from_json throw in order to check capacity
  + std::vector<float> v;
  + CHECK_THROWS_AS(nlohmann::from_json(j, v), std::logic_error);
  + CHECK(v.capacity() == j.size());
  + }
  }
  SECTION("std::deque<json>")
  @@ -184,6 +200,8 @@ TEST_CASE("value conversion")
  CHECK_THROWS_AS(json(json::value_t::number_unsigned).get<json::array_t>(), std::logic_error);
  CHECK_THROWS_AS(json(json::value_t::number_float).get<json::array_t>(), std::logic_error);
  + CHECK_THROWS_WITH(json(json::value_t::object).get<std::vector<int>>(),
  + "type must be array, but is object");
  CHECK_THROWS_WITH(json(json::value_t::null).get<json::array_t>(),
  "type must be array, but is null");
  CHECK_THROWS_WITH(json(json::value_t::object).get<json::array_t>(),
  