Refactor dput_parser() and add tests

R/tidyr_helpers.R

 #' @examples
 #' dput_parser("x")
 #' dput_parser(c("x", "y"))
-dput_parser <- function(x) {
-  ifelse(length(x) == 1,
-         sprintf("'%s'", x),
-         paste0("c(",
-                paste(sprintf("'%s'", x), collapse = ", "),
-                ")"))
+dput_parser <- function(x) UseMethod("dput_parser")
+
+dput_parser.character <- function(x) {
+  if (length(x) == 1) {
+    sprintf('"%s"', x)
+  } else {
+    x <- capture.output(dput(x))
+    paste(x, collapse = "")
+  }
 }
 
 #' Adds color to processed tidy data

tests/testthat/test-tidyr_helpers.R

   expect_equivalent(get_quos_names(x:y), "x:y")
   expect_equivalent(get_quos_names(-x, -y, -z), c("-x", "-y", "-z"))
 })
+
+test_that("dput_parsers works", {
+  expect_equal(dput_parser("x"), '"x"')
+  expect_equal(dput_parser(c("x", "y")), 'c("x", "y")')
+})