CRAN + interactive = less coverage

[helgasoft]

Facing a dilemma - pass CRAN tests with less coverage, or fail CRAN and get better coverage.
The problem comes from the interactive() flag. To avoid upsetting CRAN checks, we must "protect" (suppress) a number of tests by enclosing them in if (interactive()) {...}.
I suppose it is impossible to make interactive() TRUE by force.
Is there an alternative to replace it with some environment variable in order to allow those extra tests to run only inside covr::coveralls ?

[olivroy]

You can look at rlang::is_interactive()

rlang provides rlang::local_interactive(). usethis makes extensive use of it in their tests

[helgasoft]

@olivroy, thank you for replying. Yes, one could set rlang::is_interactive() through rlang::local_interactive().
The problem is that devtools::test and covr::package_coverage will read the same flag and execute the same tests.

I think I found how to differentiate between the two - using flag Sys.getenv("R_COVR")!=''. This is an environment variable set for covr::package_coverage only. Now we can run more tests for coverage without raising warnings and errors in CRAN checks (devtools::test).