// Copyright (C) 2016  Arista Networks, Inc.
// Use of this source code is governed by the Apache License 2.0
// that can be found in the COPYING file.

package monotime

import "testing"

func TestNow(t *testing.T) {
	for i := 0; i < 100; i++ {
		t1 := Now()
		t2 := Now()
		// I honestly thought that we needed >= here, but in some environments
		// two consecutive calls can return the same value!
		if t1 > t2 {
			t.Fatalf("t1=%d should have been less than or equal to t2=%d", t1, t2)
		}
	}
}

func TestSince(t *testing.T) {
	for i := 0; i < 100; i++ {
		ts := Now()
		d := Since(ts)
		if d < 0 {
			t.Fatalf("d=%d should be greater than or equal to zero", d)
		}
	}
}