How to show diff in tests output

[mikaoelitiana]

I am using neotest mocha adapter and I can't find the way to display the diff when something is mismatching in the test results. I see in the JSON output file, there is a showDiff key along with a actual and expected like
https://github.com/adrigzr/neotest-mocha/blob/780afb9ed021431fbf056b69295170d68d273234/test/fixtures/basic_test_results.json#L139-L146

Is there a way to display this in Neotest? By default on the mocha adapter, the output is sent to JSON so it is not available in the console output.