Convenient way to select initial values in tests

[ianwalter]

inject is great when, within a test, you want to simulate the user supplying an answer, but what about when you want to simulate them choosing the initial or default value? I can submit a PR if we can decide on how to implement this. My proposal is that if an injected answer is undefined prompts would just use the initial value. e.g.:

prompts.inject({ a: undefined })

[lukeed]

I think @terkelg is working a complete testing solution for simulating interaction(s) with all prompt types.

[terkelg]

You're right @ianwalter - we need better tests for sure. As I see it right now there's two aspects to testing: internal and apis for external testing. I'm open for ideas to both. I started writing some utility functions for internal testing the other day - maybe we can merge the two?

Have a look in the tests branch. Came up with a solution where we expose the internal keypress method from the base prompt element and then use tagged template literals to create a tiny "template-like" language: https://github.com/terkelg/prompts/blob/tests/test/textprompt.js#L17

[ianwalter]

Yea being able to call/emit a keypress function/readline event with ‘\n’ would suffice although it doesnt bypass showing the prompt like inject does which I think might be ideal for testing.