You can assign multiple values to test attributes of the type Set.
You can use the + operator to add members to a Set attribute and the – operator to remove members from a Set attribute.
RunWhen: UI; regression Test 1 testcase: t1 RunWhen: + smoke Test 2 testcase: t2
In this example, Test 1 has the values UI and regression.
The statement RunWhen: + smoke adds the value smoke to the previously assigned values, so Test 2 has the values UI, regression, and smoke.
RunWhen: UI; regression Test 1 testcase: t1 RunWhen: - regression Test 2 testcase: t2
In this example, Test 1 has the values UI and regression.
The statement RunWhen: - regression removes the value regression from the previously assigned values, so Test 2 has the value UI.