original.name="Switch_Valid_2"
======
>>> main.whiley


function f(int x) -> int:
    int y
    switch x:
        case 1:
            y = -1
        case 2:
            y = -2
        default:
            y = 0
    return y

public export method test() :
    assume f(1) == -1
    assume f(2) == -2
    assume f(3) == 0
    assume f(-1) == 0

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