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package util
import "testing"
func TestMax(t *testing.T) {
if Max(-2, 5, 1, 4, 3) != 5 {
t.Error("Invalid result")
}
}
func TestContrain(t *testing.T) {
if Constrain(-3, -1, 3) != -1 {
t.Error("Expected", -1)
}
if Constrain(2, -1, 3) != 2 {
t.Error("Expected", 2)
}
if Constrain(5, -1, 3) != 3 {
t.Error("Expected", 3)
}
}
func TestTrimLen(t *testing.T) {
check := func(str string, exp int) {
trimmed := TrimLen([]rune(str))
if trimmed != exp {
t.Errorf("Invalid TrimLen result for '%s': %d (expected %d)",
str, trimmed, exp)
}
}
check("hello", 5)
check("hello ", 5)
check("hello ", 5)
check(" hello", 5)
check(" hello", 5)
check(" hello ", 5)
check(" hello ", 5)
check("h o", 5)
check(" h o ", 5)
check(" ", 0)
}
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