original.name="Switch_Valid_5"
======
>>> main.whiley
final int IHDR_TYPE = 1380206665
final int IEND_TYPE = 1145980233
final int IDAT_TYPE = 1413563465
final int PLTE_TYPE = 1163152464
final int PHYS_TYPE = 1935231088
final int TIME_TYPE = 1162692980
public function f(int type) -> int:
switch type:
case IHDR_TYPE:
return 1
case IEND_TYPE:
return 2
case PLTE_TYPE:
return 3
case PHYS_TYPE:
return 4
case TIME_TYPE:
return 5
default:
return 6
public export method test() :
assume f(IHDR_TYPE) == 1
assume f(IEND_TYPE) == 2
assume f(PLTE_TYPE) == 3
assume f(PHYS_TYPE) == 4
assume f(TIME_TYPE) == 5
---