context("helper_functions")
test_that("inverse negates the shortcut", {
test_shortcuts <- shortcuts[c("single_quote", "letter")]
expect_equal(
list(
non_single_quote = structure("^'", class = c("character_class", "regex")),
non_letter = structure("^[:alpha:]", class = c("character_class", "regex"))
), inverse(test_shortcuts))
})
test_that("plural makes shortcut match one or more", {
test_shortcuts <- shortcuts[c("single_quote", "letter")]
expect_equal(
list(
single_quotes = structure("[']+", class = c("regex")),
letters = structure("[[:alpha:]]+", class = c("regex"))
), plural(test_shortcuts))
})
test_that("multiple makes shortcut match zero or more", {
test_shortcuts <- shortcuts[c("single_quote", "letter")]
expect_equal(
list(
any_single_quotes = structure("[']*", class = c("regex")),
any_letters = structure("[[:alpha:]]*", class = c("regex"))
), multiple(test_shortcuts))
})
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