shad-go/lectures/04-testing/size/size.go

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package size
func Size(a int) string {
switch {
case a < 0:
return "negative"
case a == 0:
return "zero"
case a < 10:
return "small"
case a < 100:
return "big"
case a < 1000:
return "huge"
}
return "enormous"
}