Enviornment Variable

I am trying to create environment variable let say dbt_test which exclude test when any job run.

By default i can add that in enviornment variable tab but as i dont have permission so trying to test it by creating a env_var in dbt_project.yml to exclude test.

Var_test : “{{ env_var(\”dbt_test_exclude\”,\”’—exclude test1 test2’\”) }}”

But when i am running below command i can see that test running

dbt run —select abcd

Abcd is a model that test1 and 2 refer

But i can see test are getting executed

Can anyone help