tests/testthat/_snaps/private-loops.md

In later: Utilities for Scheduling Functions to Execute Later with Event Loops

Private event loops

Code
  with_loop(l, later(function() message("foo")))
Condition
  Error in `with_loop()`:
  ! loop has been destroyed!

Code
  run_now(loop = l)
Condition
  Error:
  ! CallbackRegistry does not exist.

Code
  destroy_loop(global_loop())
Condition
  Error:
  ! Can't destroy global loop.

Temporary event loops

Code
  with_loop(l, {
    later(function() x <<- x + 1)
    run_now()
  })
Condition
  Error in `with_loop()`:
  ! loop has been destroyed!

list_queue

Code
  list_queue(l)
Condition
  Error:
  ! CallbackRegistry does not exist.

next_op_secs works

Code
  next_op_secs(loop)
Condition
  Error:
  ! CallbackRegistry does not exist.

parameter validation works

Code
  with_loop(loop, destroy_loop(loop))
Condition
  Error:
  ! Can't destroy current loop.

Code
  with_loop(loop, { })
Condition
  Error in `with_loop()`:
  ! loop has been destroyed!

Code
  loop_empty(loop)
Condition
  Error:
  ! CallbackRegistry does not exist.

Code
  create_loop(parent = "invalid")
Condition
  Error in `create_loop()`:
  ! `parent` must be NULL or an event_loop object.

esoteric error handlers

Code
  notify_r_ref_deleted(global_loop())
Condition
  Error:
  ! Can't notify that reference to global loop is deleted.

Code
  with_loop(loop, notify_r_ref_deleted(loop))
Condition
  Error:
  ! Can't notify that reference to current loop is deleted.

Code
  with_loop(loop, {
    .loops[[as.character(loop$id)]] <- NULL
    current_loop()
  })
Condition
  Error in `current_loop()`:
  ! Current loop with id 43 not found.

later documentation built on Jan. 8, 2026, 9:08 a.m.