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- // Copyright 2016, Google Inc.
- // All rights reserved.
- //
- // Redistribution and use in source and binary forms, with or without
- // modification, are permitted provided that the following conditions are
- // met:
- //
- // * Redistributions of source code must retain the above copyright
- // notice, this list of conditions and the following disclaimer.
- // * Redistributions in binary form must reproduce the above
- // copyright notice, this list of conditions and the following disclaimer
- // in the documentation and/or other materials provided with the
- // distribution.
- // * Neither the name of Google Inc. nor the names of its
- // contributors may be used to endorse or promote products derived from
- // this software without specific prior written permission.
- //
- // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
- package gax
-
- import (
- "testing"
- "time"
-
- "google.golang.org/grpc/codes"
- "google.golang.org/grpc/status"
- )
-
- var _ Retryer = &boRetryer{}
-
- func TestBackofDefault(t *testing.T) {
- backoff := Backoff{}
-
- max := []time.Duration{1, 2, 4, 8, 16, 30, 30, 30, 30, 30}
- for i, m := range max {
- max[i] = m * time.Second
- }
-
- for i, w := range max {
- if d := backoff.Pause(); d > w {
- t.Errorf("Backoff duration should be at most %s, got %s", w, d)
- } else if i < len(max)-1 && backoff.cur != max[i+1] {
- t.Errorf("current envelope is %s, want %s", backoff.cur, max[i+1])
- }
- }
- }
-
- func TestBackoffExponential(t *testing.T) {
- backoff := Backoff{Initial: 1, Max: 20, Multiplier: 2}
- want := []time.Duration{1, 2, 4, 8, 16, 20, 20, 20, 20, 20}
- for _, w := range want {
- if d := backoff.Pause(); d > w {
- t.Errorf("Backoff duration should be at most %s, got %s", w, d)
- }
- }
- }
-
- func TestOnCodes(t *testing.T) {
- // Lint errors grpc.Errorf in 1.6. It mistakenly expects the first arg to Errorf to be a string.
- errf := status.Errorf
- apiErr := errf(codes.Unavailable, "")
- tests := []struct {
- c []codes.Code
- retry bool
- }{
- {nil, false},
- {[]codes.Code{codes.DeadlineExceeded}, false},
- {[]codes.Code{codes.DeadlineExceeded, codes.Unavailable}, true},
- {[]codes.Code{codes.Unavailable}, true},
- }
- for _, tst := range tests {
- b := OnCodes(tst.c, Backoff{})
- if _, retry := b.Retry(apiErr); retry != tst.retry {
- t.Errorf("retriable codes: %v, error: %s, retry: %t, want %t", tst.c, apiErr, retry, tst.retry)
- }
- }
- }
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