| 1 | package installlayout |
| 2 | |
| 3 | import ( |
| 4 | "errors" |
| 5 | "testing" |
| 6 | "time" |
| 7 | ) |
| 8 | |
| 9 | func TestRetryTransientStopsOnPermanentErrors(t *testing.T) { |
| 10 | restore := transientRetryDelay |
| 11 | transientRetryDelay = func(time.Duration) { t.Fatal("permanent errors must not back off") } |
| 12 | t.Cleanup(func() { transientRetryDelay = restore }) |
| 13 | |
| 14 | permanent := errors.New("permanent") |
| 15 | attempts := 0 |
| 16 | err := retryTransient(func() error { attempts++; return permanent }) |
| 17 | if !errors.Is(err, permanent) || attempts != 1 { |
| 18 | t.Fatalf("attempts=%d err=%v", attempts, err) |
| 19 | } |
| 20 | attempts = 0 |
| 21 | if err := retryTransient(func() error { attempts++; return nil }); err != nil || attempts != 1 { |
| 22 | t.Fatalf("attempts=%d err=%v", attempts, err) |
| 23 | } |
| 24 | } |
| 25 |