Disable output in Test environment

[Sufiane-Souissi]

I found myself kind of annoyed when testing code that use listr.

The output is rendered and show error icon, when testing the code. It looks like the test fails if you don't look closely.

Could it be possible to activate/deactivate renderer with an env variable?

The only solution I see right now is to make a custom renderer that'll check the env variable and execute code accordingly.

It could be great to just have to pass an option like --test to disable the rendering.

what's your opinion about this?

N.B: great job with the library, it's really cool !

[Sufiane-Souissi]

I saw this: https://github.com/SamVerschueren/listr-silent-renderer
But I would have preferred this to be used under the hood when a given option is given.