add test prefix

Author: Sylvain Garcia

test/CMakeLists.txt

@@ -51,5 +51,6 @@ foreach(test ${tests})
 	get_filename_component(test_name ${test} NAME_WE)
 	add_executable(${test_name} ${test})
 	target_link_libraries(${test_name} PRIVATE tests-main)
-	doctest_discover_tests(${test_name} PROPERTIES TIMEOUT 30)
+	string(REPLACE "_" " " test_prefix ${test_name})
+	doctest_discover_tests(${test_name} TEST_PREFIX ${test_prefix}- PROPERTIES TIMEOUT 30)
 endforeach()