Add more unit tests

[yihui]

https://github.com/rstudio/blogdown/tree/master/tests

https://codecov.io/github/rstudio/blogdown?branch=master

https://yihui.name/en/2018/07/add-more-tests/

[novica]

I started writing some tests.

By stared I mean I have a testit that passes different strings to quote_poem() and it seems to be working.

However, I immediately got stuck at quote_poem_addin(). I'm having hard time figuring out how to test a function that talks to the rstudio api. I would appreciate some guidance here.

[yihui]

No need to test quote_poem_addin(). Testing quote_poem() will be enough and it is the essential function behind the addin. Thank you very much!

[novica]

OK. I will make a pull request with the test for quote_poem(). I don't think I can do anything with the rest of the functions in addin.R.

[novica]

Moving onto clean.R, I am thinking to separate the functions so that I only test the string manipulations, and not the opening and writing of the file. Does this make sense?

[yihui]

Yes.