diff --git a/test/const_vector/const_vector_constructor.test.cpp b/test/const_vector/const_vector_constructor.test.cpp
index 27095e6..4a616f5 100644
--- a/test/const_vector/const_vector_constructor.test.cpp
+++ b/test/const_vector/const_vector_constructor.test.cpp
@@ -1225,6 +1225,27 @@ constexpr test_suite tests = define_tests("Tests")
 
 		("const_vector::at(size_type pos)", []() constexpr {
 
+			REPEAT_FOR_TYPES_N(([]<typename T, std::size_t N, typename Ctx>() constexpr {
+
+				cc::const_vector<T, test_params<"arr", Ctx>::get_arr_len() + 1> v(test_context_params<T, N>::template value<"arr">);
+				const cc::const_vector<T, test_params<"arr", Ctx>::get_arr_len() + 1> cv(test_context_params<T, N>::template value<"arr">);
+
+				for (int i = 0; i < test_params<"arr", Ctx>::get_arr_len(); ++i) {
+					ASSERT_TYPE_NUM((v.at(i) == test_params<"arr", Ctx>::get()[i]), T, N);
+					ASSERT_TYPE_NUM((cv.at(i) == test_params<"arr", Ctx>::get()[i]), T, N);
+				}
+
+				ASSERT_TYPE_NUM_THROWS(v.at(test_params<"arr", Ctx>::get_arr_len()), std::out_of_range, T, N);
+				ASSERT_TYPE_NUM_THROWS(cv.at(test_params<"arr", Ctx>::get_arr_len()), std::out_of_range, T, N);
+
+				v.at(v.size() / 2) = test_params<"value", Ctx>::get();
+
+				ASSERT_TYPE_NUM((v.data()[v.size() / 2] == test_params<"value", Ctx>::get()), T, N);
+
+				return TEST_PASS();
+			}), 2, int, char, const char *, TestObj);
+
+
 			return TEST_PASS();
 		}, EvalFlag::RUNTIME_CONSTEVAL)