uses context Canceled error

Author: matryer

boxutil/status.go

@@ -2,14 +2,9 @@ package boxutil
 
 import (
 	"context"
-	"errors"
 	"time"
 )
 
-// ErrCanceled is returned when the context cancels or times out
-// an operation.
-var ErrCanceled = errors.New("context is done")
-
 // readyCheckInterval is the interval to wait between checking
 // the status in StatusChan.
 // Unexported because 1 second is sensible, but configurable to make
@@ -51,7 +46,7 @@ func WaitForReady(ctx context.Context, i Box) error {
 	for {
 		select {
 		case <-ctx.Done():
-			return ErrCanceled
+			return ctx.Err()
 		case status := <-statusChan:
 			if IsReady(status) {
 				return nil

boxutil/status_test.go

@@ -55,7 +55,7 @@ func TestWaitForReadyTimeout(t *testing.T) {
 		i.setReady()
 	}()
 	err := WaitForReady(ctx, i)
-	is.Equal(err, ErrCanceled)
+	is.Equal(err, context.Canceled)
 }
 
 type testBox struct {