paleolimbot commented on a change in pull request #11534:
URL: https://github.com/apache/arrow/pull/11534#discussion_r745529945



##########
File path: r/tests/testthat/helper-expectation.R
##########
@@ -317,3 +317,7 @@ split_vector_as_list <- function(vec) {
   vec2 <- vec[seq(from = min(length(vec), vec_split + 1), to = length(vec), by 
= 1)]
   list(vec1, vec2)
 }
+
+err_helper <- function(...) (expect_error(...))

Review comment:
       My vote (with no string feelings) is still for `expect_error()` so that 
newbies to snapshot testing like me understand what's going on when we have to 
debug one of them or write a new one.




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