how to add test binary flags

Hi, sorry how can i add the test binary flags? it needs to be after the package ```-args```

```
	-args
	    Pass the remainder of the command line (everything after -args)
	    to the test binary, uninterpreted and unchanged.
	    Because this flag consumes the remainder of the command line,
	    the package list (if present) must appear before this flag.
	    ```