xfer: fix a simple goroutine leak in unit test
@@ -350,6 +350,7 @@ func TestCancelledDownload(t *testing.T) {
descriptors := downloadDescriptors(nil)
_, _, err := ldm.Download(ctx, *image.NewRootFS(), runtime.GOOS, descriptors, progress.ChanOutput(progressChan))
if err != context.Canceled {
+ close(progressChan)
t.Fatal("expected download to be cancelled")
}
