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fix test and description

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This commit is contained in:
Evgeniy 2020-01-30 19:43:03 +03:00
parent f6fcfcb8fc
commit ffb9da0230
2 changed files with 4 additions and 7 deletions
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2
client/backoff.go
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@ -8,7 +8,7 @@ import (
type BackoffFunc func(ctx context.Context, req Request, attempts int) (time.Duration, error)
// exponential backoff multiplied by a factor of 0.1 second.
// exponential backoff is a function x^e multiplied by a factor of 0.1 second.
func exponentialBackoff(ctx context.Context, req Request, attempts int) (time.Duration, error) {
return time.Duration(math.Pow(float64(attempts), math.E)) * time.Millisecond * 100, nil
}

9
client/backoff_test.go
View File

@ -2,13 +2,12 @@ package client
import (
"context"
"math"
"testing"
"time"
)
func TestBackoff(t *testing.T) {
delta := time.Duration(0)
results := []time.Duration{0 * time.Second, 100 * time.Millisecond, 600 * time.Millisecond, 1900 * time.Millisecond, 4300 * time.Millisecond, 7900 * time.Millisecond}
c := NewClient()
@ -18,10 +17,8 @@ func TestBackoff(t *testing.T) {
t.Fatal(err)
}
if d < delta {
t.Fatalf("Expected greater than %v, got %v", delta, d)
if d != results[i] {
t.Fatalf("Expected equal than %v, got %v", results[i], d)
}
delta = time.Millisecond * 100 * time.Duration(math.Pow(math.E, float64(i)))
}
}