mirror of
https://github.com/octoleo/restic.git
synced 2024-11-26 23:06:32 +00:00
109 lines
3.7 KiB
Go
109 lines
3.7 KiB
Go
/*
|
|
Copyright 2017 Google Inc. All Rights Reserved.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package spanner
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"reflect"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/golang/protobuf/proto"
|
|
"github.com/golang/protobuf/ptypes"
|
|
"golang.org/x/net/context"
|
|
edpb "google.golang.org/genproto/googleapis/rpc/errdetails"
|
|
"google.golang.org/grpc"
|
|
"google.golang.org/grpc/codes"
|
|
"google.golang.org/grpc/metadata"
|
|
)
|
|
|
|
// Test if runRetryable loop deals with various errors correctly.
|
|
func TestRetry(t *testing.T) {
|
|
if testing.Short() {
|
|
t.SkipNow()
|
|
}
|
|
responses := []error{
|
|
grpc.Errorf(codes.Internal, "transport is closing"),
|
|
grpc.Errorf(codes.Unknown, "unexpected EOF"),
|
|
grpc.Errorf(codes.Internal, "stream terminated by RST_STREAM with error code: 2"),
|
|
grpc.Errorf(codes.Unavailable, "service is currently unavailable"),
|
|
errRetry(fmt.Errorf("just retry it")),
|
|
}
|
|
err := runRetryable(context.Background(), func(ct context.Context) error {
|
|
var r error
|
|
if len(responses) > 0 {
|
|
r = responses[0]
|
|
responses = responses[1:]
|
|
}
|
|
return r
|
|
})
|
|
if err != nil {
|
|
t.Errorf("runRetryable should be able to survive all retryable errors, but it returns %v", err)
|
|
}
|
|
// Unretryable errors
|
|
injErr := errors.New("this is unretryable")
|
|
err = runRetryable(context.Background(), func(ct context.Context) error {
|
|
return injErr
|
|
})
|
|
if wantErr := toSpannerError(injErr); !reflect.DeepEqual(err, wantErr) {
|
|
t.Errorf("runRetryable returns error %v, want %v", err, wantErr)
|
|
}
|
|
// Timeout
|
|
ctx, cancel := context.WithTimeout(context.Background(), time.Second)
|
|
defer cancel()
|
|
retryErr := errRetry(fmt.Errorf("still retrying"))
|
|
err = runRetryable(ctx, func(ct context.Context) error {
|
|
// Expect to trigger timeout in retryable runner after 10 executions.
|
|
<-time.After(100 * time.Millisecond)
|
|
// Let retryable runner to retry so that timeout will eventually happen.
|
|
return retryErr
|
|
})
|
|
// Check error code and error message
|
|
if wantErrCode, wantErr := codes.DeadlineExceeded, errContextCanceled(ctx, retryErr); ErrCode(err) != wantErrCode || !reflect.DeepEqual(err, wantErr) {
|
|
t.Errorf("<err code, err>=\n<%v, %v>, want:\n<%v, %v>", ErrCode(err), err, wantErrCode, wantErr)
|
|
}
|
|
// Cancellation
|
|
ctx, cancel = context.WithCancel(context.Background())
|
|
retries := 3
|
|
retryErr = errRetry(fmt.Errorf("retry before cancel"))
|
|
err = runRetryable(ctx, func(ct context.Context) error {
|
|
retries--
|
|
if retries == 0 {
|
|
cancel()
|
|
}
|
|
return retryErr
|
|
})
|
|
// Check error code, error message, retry count
|
|
if wantErrCode, wantErr := codes.Canceled, errContextCanceled(ctx, retryErr); ErrCode(err) != wantErrCode || !reflect.DeepEqual(err, wantErr) || retries != 0 {
|
|
t.Errorf("<err code, err, retries>=\n<%v, %v, %v>, want:\n<%v, %v, %v>", ErrCode(err), err, retries, wantErrCode, wantErr, 0)
|
|
}
|
|
}
|
|
|
|
func TestRetryInfo(t *testing.T) {
|
|
b, _ := proto.Marshal(&edpb.RetryInfo{
|
|
RetryDelay: ptypes.DurationProto(time.Second),
|
|
})
|
|
trailers := map[string]string{
|
|
retryInfoKey: string(b),
|
|
}
|
|
gotDelay, ok := extractRetryDelay(errRetry(toSpannerErrorWithMetadata(grpc.Errorf(codes.Aborted, ""), metadata.New(trailers))))
|
|
if !ok || !reflect.DeepEqual(time.Second, gotDelay) {
|
|
t.Errorf("<ok, retryDelay> = <%t, %v>, want <true, %v>", ok, gotDelay, time.Second)
|
|
}
|
|
}
|