feature #4: create procedure for citizen

resources/tests/user.sql

@@ -5,23 +5,27 @@ declare
     selected_user json;
     exist_user json;
 begin
+    -- Insert user and check if username and password is correct
     call insert_user(created_user);
     assert created_user->>'username' = 'george', 'username must be george';
     assert created_user->>'password' is not null, 'password must be generated';
 
+    -- get user by there id and check the username is correct
     call find_user_by_id((created_user->>'id')::uuid, selected_user);
     assert selected_user->>'username' = 'george', 'username must be george';
 
+    -- get user by username and check the username is correct
     call find_user_by_username(created_user->>'username', selected_user);
     assert selected_user->>'username' = 'george', 'username must be george';
 
+    -- check if user exist with username and password and verify the reterned user
     select check_user('george', 'azerty') into exist_user;
     assert exist_user is not null, format('the function check_user must be return user object if username and password is correct, %s is return', exist_user::text);
     assert exist_user->>'username' = 'george', format('the function check_user must be return user object with username is "george", %s is return', exist_user::text);
     assert exist_user->>'password' is null, format('the function check_user must not be return the password, %s is return', exist_user::text);
 
+    -- delete user and check if user is really not exists
     delete from "user" where username = 'george';
-
     select check_user('george', 'azerty') into exist_user;
     assert exist_user is null, format('the function check_user must be return null if user not exist, %s is return', exist_user::text);