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  | 
package clock
import (
	"testing"
	"time"
	"github.com/stretchr/testify/assert"
)
func TestTestingClock(t *testing.T) {
	c := &Fixed{
		now: time.Unix(0, 0),
	}
	assert.Equal(t, int64(0), c.Now().Unix())
	c.now = time.Unix(20, 0)
	assert.Equal(t, int64(20), c.Now().Unix())
	assert.Equal(t, int64(20000000000), c.Now().UnixNano())
	c.Set(time.Unix(16000000, 0))
	assert.Equal(t, int64(16000000), c.Now().Unix())
	before := c.Now()
	<-c.After(time.Millisecond * 100)
	assert.Equal(t, before, c.Now())
}
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