diff --git a/src/tests/src/solver/simulation/tests-ts-numbers.cpp b/src/tests/src/solver/simulation/tests-ts-numbers.cpp
index 5417e71561..4fb2dbf132 100644
--- a/src/tests/src/solver/simulation/tests-ts-numbers.cpp
+++ b/src/tests/src/solver/simulation/tests-ts-numbers.cpp
@@ -88,21 +88,21 @@ BOOST_AUTO_TEST_CASE(test_compare_function_identical_values_OK)
 {
     using namespace Antares::Solver::TimeSeriesNumbers;
     std::vector<std::pair<unsigned, std::string>> list = {{4, ""}, {4, ""}, {4, ""}, {4, ""}};
-    BOOST_CHECK(checkAllElementsIdenticalOrOne(list));
+    BOOST_CHECK(Utils::checkAllElementsIdenticalOrOne(list));
 }
 
 BOOST_AUTO_TEST_CASE(test_compare_function_identical_values_and_one_OK)
 {
     using namespace Antares::Solver::TimeSeriesNumbers;
     std::vector<std::pair<unsigned, std::string>> list = {{4, ""}, {4, ""}, {4, ""}, {1, ""}};
-    BOOST_CHECK(checkAllElementsIdenticalOrOne(list));
+    BOOST_CHECK(Utils::checkAllElementsIdenticalOrOne(list));
 }
 
 BOOST_AUTO_TEST_CASE(test_compare_function_one_and_identical_values_OK)
 {
     using namespace Antares::Solver::TimeSeriesNumbers;
     std::vector<std::pair<unsigned, std::string>> list = {{1, ""}, {4, ""}, {4, ""}, {4, ""}};
-    BOOST_CHECK(checkAllElementsIdenticalOrOne(list));
+    BOOST_CHECK(Utils::checkAllElementsIdenticalOrOne(list));
 }
 
 BOOST_AUTO_TEST_CASE(test_compare_function_two_distinct_values_of_which_one_KO)
@@ -114,7 +114,7 @@ BOOST_AUTO_TEST_CASE(test_compare_function_two_distinct_values_of_which_one_KO)
                                                           {2, ""},
                                                           {1, ""},
                                                           {3, ""}};
-    BOOST_CHECK(!checkAllElementsIdenticalOrOne(list));
+    BOOST_CHECK(!Utils::checkAllElementsIdenticalOrOne(list));
 }
 
 BOOST_AUTO_TEST_CASE(test_compare_function_three_distinct_values_KO)
@@ -126,7 +126,7 @@ BOOST_AUTO_TEST_CASE(test_compare_function_three_distinct_values_KO)
                                                           {3, ""},
                                                           {2, ""},
                                                           {1, ""}};
-    BOOST_CHECK(!checkAllElementsIdenticalOrOne(list));
+    BOOST_CHECK(!Utils::checkAllElementsIdenticalOrOne(list));
 }
 
 BOOST_AUTO_TEST_CASE(two_areas_with_5_ready_made_ts_on_load___check_intra_modal_consistency_OK)