package utilities

import (
	"testing"
	"time"
)

func TestDefaultApplyJitterIsAlwaysGEZero(t *testing.T) {
	if got := DefaultApplyJitter(maxInt64, time.Nanosecond); got < 0 {
		t.Fatalf("error: wanted >= 0; got %s\n", got)
	}
	if got := DefaultApplyJitter(maxInt64, maxInt64); got < 0 {
		t.Fatalf("error: wanted >= 0; got %s\n", got)
	}
}

func TestDefaultApplyJitterWithZeroPauseAlwaysZero(t *testing.T) {
	for i := 0; i < 10; i++ {
		if got := DefaultApplyJitter(0, time.Duration(i)); got != 0 {
			t.Fatalf("error: wanted 0; got %s\n", got)
		}
	}
}