'random attachment type (unofficial), with random assigned value, to prove BigPipeResponseAttachmentsProcessor is a perfect decorator' => [$random_attachments],
];
- $big_pipe_placeholder_attachments = ['big_pipe_placeholders' => $this->randomMachineName()];
- $big_pipe_nojs_placeholder_attachments = ['big_pipe_nojs_placeholders' => $this->randomMachineName()];
+ $big_pipe_placeholder_attachments = ['big_pipe_placeholders' => [$this->randomMachineName()]];
+ $big_pipe_nojs_placeholder_attachments = ['big_pipe_nojs_placeholders' => [$this->randomMachineName()]];
$big_pipe_cases = [
'only big_pipe_placeholders' => [$big_pipe_placeholder_attachments],
'only big_pipe_nojs_placeholders' => [$big_pipe_nojs_placeholder_attachments],