GODRIVER-2929 Make driver.ErrDeadlineWouldBeExceeded wrap context.Dea…

…dlineExceeded (#1355)

x/mongo/driver/errors.go

@@ -8,6 +8,7 @@ package driver
 
 import (
  "bytes"
+ "context"
  "errors"
  "fmt"
  "strings"
@@ -51,9 +52,12 @@ var (
  // ErrUnsupportedStorageEngine is returned when a retryable write is attempted against a server
  // that uses a storage engine that does not support retryable writes
  ErrUnsupportedStorageEngine = errors.New("this MongoDB deployment does not support retryable writes. Please add retryWrites=false to your connection string")
- // ErrDeadlineWouldBeExceeded is returned when a Timeout set on an operation would be exceeded
- // if the operation were sent to the server.
- ErrDeadlineWouldBeExceeded = errors.New("operation not sent to server, as Timeout would be exceeded")
+ // ErrDeadlineWouldBeExceeded is returned when a Timeout set on an operation
+ // would be exceeded if the operation were sent to the server. It wraps
+ // context.DeadlineExceeded.
+ ErrDeadlineWouldBeExceeded = fmt.Errorf(
+ "operation not sent to server, as Timeout would be exceeded: %w",
+ context.DeadlineExceeded)
  // ErrNegativeMaxTime is returned when MaxTime on an operation is a negative value.
  ErrNegativeMaxTime = errors.New("a negative value was provided for MaxTime on an operation")
 )