diff --git a/test/common_helper/test.hpp b/test/common_helper/test.hpp
index 1a7395e..ac199ec 100644
--- a/test/common_helper/test.hpp
+++ b/test/common_helper/test.hpp
@@ -247,9 +247,14 @@ inline std::ostream& operator<<(std::ostream& os, ReturnCode rc) {
 	}
 }
 
-template <template<typename T, std::initializer_list<T> il> typename Callee>
-constexpr void expand_from_ilist() {
-	return Callee {  };
-}
+
+
+#define CREATE_FROM_IL(type, il, len) \
+([]<std::size_t N, typename ArgType>(std::initializer_list<ArgType> args) { \
+	auto creator = [&args] <std::size_t ..._idx> (std::index_sequence<_idx...>) { \
+		return type { (*std::next(std::begin(args), _idx))... }; \
+	}; \
+	return creator(std::make_index_sequence<N>()); \
+}).operator()<len>(il)
 
 #endif //CONST_CONTAINER_TEST_HPP_
diff --git a/test/const_vector/const_vector_constructor.test.cpp b/test/const_vector/const_vector_constructor.test.cpp
index 4d55d6d..205f8f2 100644
--- a/test/const_vector/const_vector_constructor.test.cpp
+++ b/test/const_vector/const_vector_constructor.test.cpp
@@ -272,8 +272,8 @@ constexpr test_suite tests = define_tests("Tests")
 			ASSERT_RANGE_VEC_EQ(vi4, test_defs::get<int>::arr_len<2>(), test_defs::get<int>::capacity<2>(), int());
 
 
-			cc::const_vector vc1(test_defs::get<char>::i_list<1>);
-			cc::const_vector vc2(test_defs::get<char>::i_list<2>);
+			auto vc1 = CREATE_FROM_IL(cc::const_vector, test_defs::get<char>::i_list<1>, test_defs::get<char>::il_len<1>());
+			auto vc2 = CREATE_FROM_IL(cc::const_vector, test_defs::get<char>::i_list<2>, test_defs::get<char>::il_len<2>());
 			cc::const_vector<char, test_defs::get<int>::capacity<1>()> vc3(test_defs::get<char>::i_list<1>);
 			cc::const_vector<char, test_defs::get<int>::capacity<2>()> vc4(test_defs::get<char>::i_list<2>);
 
@@ -293,8 +293,8 @@ constexpr test_suite tests = define_tests("Tests")
 			ASSERT_RANGE_VEC_EQ(vc4, test_defs::get<char>::arr_len<2>(), test_defs::get<int>::capacity<2>(), char());
 
 
-			cc::const_vector vs1(test_defs::get<const char *>::i_list<1>);
-			cc::const_vector vs2(test_defs::get<const char *>::i_list<2>);
+			auto vs1 = CREATE_FROM_IL(cc::const_vector, test_defs::get<const char*>::i_list<1>, test_defs::get<const char*>::il_len<1>());
+			auto vs2 = CREATE_FROM_IL(cc::const_vector, test_defs::get<const char*>::i_list<2>, test_defs::get<const char*>::il_len<2>());
 			cc::const_vector<const char *, test_defs::get<int>::capacity<1>()> vs3(test_defs::get<const char *>::i_list<1>);
 			cc::const_vector<const char *, test_defs::get<int>::capacity<2>()> vs4(test_defs::get<const char *>::i_list<2>);
 
@@ -312,8 +312,8 @@ constexpr test_suite tests = define_tests("Tests")
 			ASSERT_RANGE_VEC_ARR_EQ(vs4, 0, test_defs::get<const char *>::arr_len<2>(), test_defs::get<const char *>::i_list<2>);
 
 
-			cc::const_vector vo1(test_defs::get<TestStruct>::i_list<1>);
-			cc::const_vector vo2(test_defs::get<TestStruct>::i_list<2>);
+			auto vo1 = CREATE_FROM_IL(cc::const_vector, test_defs::get<TestStruct>::i_list<1>, test_defs::get<TestStruct>::il_len<1>());
+			auto vo2 = CREATE_FROM_IL(cc::const_vector, test_defs::get<TestStruct>::i_list<2>, test_defs::get<TestStruct>::il_len<2>());
 			cc::const_vector<TestStruct, test_defs::get<int>::capacity<1>()> vo3(test_defs::get<TestStruct>::i_list<1>);
 			cc::const_vector<TestStruct, test_defs::get<int>::capacity<2>()> vo4(test_defs::get<TestStruct>::i_list<2>);
 
diff --git a/test/const_vector/test_args.h b/test/const_vector/test_args.h
index 65401d9..71eb556 100644
--- a/test/const_vector/test_args.h
+++ b/test/const_vector/test_args.h
@@ -58,6 +58,9 @@ struct test_defs {
 		template<std::size_t nr>
 		static consteval std::size_t arr_len();
 
+		template<std::size_t nr>
+		static consteval std::size_t il_len();
+
 		template<std::size_t nr>
 		static consteval std::size_t capacity();
 		
@@ -117,6 +120,9 @@ template<std::size_t nr>
 consteval std::size_t test_defs::get<T>::arr_len() { return C_ARR_LEN(arr<nr>); }
 template<typename T>
 template<std::size_t nr>
+consteval std::size_t test_defs::get<T>::il_len() { return i_list<nr>.size(); }
+template<typename T>
+template<std::size_t nr>
 consteval std::size_t test_defs::get<T>::capacity() { return 0; }
 template<typename T>
 template<std::size_t nr>