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path: root/src/util/util_test.go
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package util

import "testing"

func TestMax(t *testing.T) {
	if Max(-2, 5) != 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 TestOnce(t *testing.T) {
	o := Once(false)
	if o() {
		t.Error("Expected: false")
	}
	if o() {
		t.Error("Expected: false")
	}

	o = Once(true)
	if !o() {
		t.Error("Expected: true")
	}
	if o() {
		t.Error("Expected: false")
	}
}