# Edge cases in these functions are important, but a little strange.
# It should work if one of the values is NA (returning a F), but
# also if you send in something empty altogether.
test_that("is_esi_investigator works", {
expect_equal(is_esi_investigator(c("ESI","",NA)), c(T,F,F))
expect_equal(is_esi_investigator(c(), c(FALSE)))
})
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