Can Patchwork be used to replace the exit method?

[BlakeCThompson]

I want to overwrite the exit method so that I can test my controller response. Is this something I can do with patchwork?

[antecedent]

Yes, it is possible.

In the same directory that your entry script is in, create a patchwork.json with the following contents:

{
    "redefinable-internals": [
        "die",
        "exit"
    ]
}

Once you have it, proceed with the redefining as usual:

foreach (['die', 'exit'] as $construct) {
    Patchwork\redefine($construct, function() {
        // ...
    });
}

Please let me know if you need some more assistance.