tests/testthat/_snaps/then.md

In promises: Abstractions for Promise-Based Asynchronous Programming

tee types are handled correctly

Code
  then(promise_resolve(1), tee = 4)
Condition
  Error in `then()`:
  ! `tee` must be `TRUE` or `FALSE`

Code
  catch(promise_resolve(1), function(err) { }, tee = "4")
Condition
  Error in `catch()`:
  ! `tee` must be `TRUE` or `FALSE`

promises documentation built on Nov. 5, 2025, 6:03 p.m.