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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