fix #14

Author: cenkalti

exponential.go

@@ -74,14 +74,16 @@ const (
 
 // NewExponentialBackOff creates an instance of ExponentialBackOff using default values.
 func NewExponentialBackOff() *ExponentialBackOff {
-	return &ExponentialBackOff{
+	b := &ExponentialBackOff{
 		InitialInterval:     DefaultInitialInterval,
 		RandomizationFactor: DefaultRandomizationFactor,
 		Multiplier:          DefaultMultiplier,
 		MaxInterval:         DefaultMaxInterval,
 		MaxElapsedTime:      DefaultMaxElapsedTime,
 		Clock:               SystemClock,
 	}
+	b.Reset()
+	return b
 }
 
 type systemClock struct{}

exponential_test.go

@@ -77,9 +77,6 @@ func TestGetElapsedTime(t *testing.T) {
 func TestMaxElapsedTime(t *testing.T) {
 	var exp = NewExponentialBackOff()
 	exp.Clock = &TestClock{start: time.Time{}.Add(10000 * time.Second)}
-	if exp.NextBackOff() != Stop {
-		t.Error("error2")
-	}
 	// Change the currentElapsedTime to be 0 ensuring that the elapsed time will be greater
 	// than the max elapsed time.
 	exp.startTime = time.Time{}