[ARROW-14168] [R] Warn only once about arrow function differences

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 8.0.0
• Component/s: R
• Labels: good-first-issue pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/29755
• Assignee: Edward Visel
• Reporter: Neal Richardson
• Created: 29/Sep/21 13:03
• Updated: 11/Jan/23 08:38
• Resolved: 13/Apr/22 23:26

Description

When someone calls median or quantile, we warn them that it is approximate. When a session is interactive, this happens only the first time in interactive sessions for median and quantile https://github.com/apache/arrow/blob/d197ad31c3d7c16ecee74cb76a71ce397e905b3b/r/R/dplyr-summarize.R#L107-L111

But when we test, the session is not interactive so we get a number of spurious extra warnings. Because of this we set a local testthat edition https://github.com/apache/arrow/blob/d197ad31c3d7c16ecee74cb76a71ce397e905b3b/r/tests/testthat/test-dplyr-summarize.R#L299-L301 which swallows any extra warnings.

We can either only warn once regardless of interactivity (which is probably totally fine for these warnings), or we could use something like local_interactive in these tests so that we only get the first warning https://rlang.r-lib.org/reference/is_interactive.html

Issue Links

• links to: GitHub Pull Request #12867