tests/testthat/test-zzz.R

In r-lib/conflicted: An Alternative Conflict Resolution Strategy

test_that("unloading removes shims", {
  # Do in separate process to avoid interferring with tests
  in_search <- callr::r(function() {
    library(conflicted)
    pkgload::unload("conflicted")
    ".conflicts" %in% search()
  })
  expect_false(in_search)
})