Edition-related functions should accept only existing editions (2 and 3)

[ALanguillaume]

library(testthat)

# Default in random REPL
edition_get()
#> [1] 2

local_edition(7)
#> Setting deferred event(s) on global environment.
#>   * Will be run automatically when session ends
#>   * Execute (and clear) with `withr::deferred_run()`.
#>   * Clear (without executing) with `withr::deferred_clear()`.
edition_get()
#> [1] 2
local_edition(5.2)
edition_get()
#> [1] 5.2
local_edition(2)
edition_get()
#> [1] 2
local_edition(18)
edition_get()
#> [1] 18
local_edition(rnorm(1))
edition_get()
#> [1] -1.483738

^{Created on 2022-01-10 by the reprex package (v2.0.1)}

Session info

sessioninfo::session_info()
#> ─ Session info ───────────────────────────────────────────────────────────────
#>  setting  value
#>  version  R version 4.1.2 (2021-11-01)
#>  os       Pop!_OS 21.10
#>  system   x86_64, linux-gnu
#>  ui       X11
#>  language en_US:en
#>  collate  en_US.UTF-8
#>  ctype    en_US.UTF-8
#>  tz       Europe/Amsterdam
#>  date     2022-01-10
#>  pandoc   2.14.0.3 @ /usr/lib/rstudio/bin/pandoc/ (via rmarkdown)
#> 
#> ─ Packages ───────────────────────────────────────────────────────────────────
#>  package     * version date (UTC) lib source
#>  backports     1.4.1   2021-12-13 [1] CRAN (R 4.1.2)
#>  cli           3.1.0   2021-10-27 [1] CRAN (R 4.1.2)
#>  crayon        1.4.2   2021-10-29 [1] CRAN (R 4.1.2)
#>  desc          1.4.0   2021-09-28 [1] CRAN (R 4.1.2)
#>  digest        0.6.29  2021-12-01 [1] RSPM (R 4.1.0)
#>  ellipsis      0.3.2   2021-04-29 [1] CRAN (R 4.1.2)
#>  evaluate      0.14    2019-05-28 [1] CRAN (R 4.1.2)
#>  fansi         0.5.0   2021-05-25 [1] CRAN (R 4.1.2)
#>  fastmap       1.1.0   2021-01-25 [1] CRAN (R 4.1.2)
#>  fs            1.5.2   2021-12-08 [1] CRAN (R 4.1.2)
#>  glue          1.6.0   2021-12-17 [1] CRAN (R 4.1.2)
#>  highr         0.9     2021-04-16 [1] CRAN (R 4.1.2)
#>  htmltools     0.5.2   2021-08-25 [1] CRAN (R 4.1.2)
#>  knitr         1.37    2021-12-16 [1] CRAN (R 4.1.2)
#>  lifecycle     1.0.1   2021-09-24 [1] CRAN (R 4.1.2)
#>  magrittr      2.0.1   2020-11-17 [1] CRAN (R 4.1.2)
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#>  pkgconfig     2.0.3   2019-09-22 [1] CRAN (R 4.1.2)
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#>  purrr         0.3.4   2020-04-17 [1] CRAN (R 4.1.2)
#>  R.cache       0.15.0  2021-04-30 [1] RSPM (R 4.1.0)
#>  R.methodsS3   1.8.1   2020-08-26 [1] RSPM (R 4.1.0)
#>  R.oo          1.24.0  2020-08-26 [1] RSPM (R 4.1.0)
#>  R.utils       2.11.0  2021-09-26 [1] RSPM (R 4.1.0)
#>  R6            2.5.1   2021-08-19 [1] CRAN (R 4.1.2)
#>  reprex        2.0.1   2021-08-05 [1] CRAN (R 4.1.2)
#>  rlang         0.4.12  2021-10-18 [1] CRAN (R 4.1.2)
#>  rmarkdown     2.11    2021-09-14 [1] CRAN (R 4.1.2)
#>  rprojroot     2.0.2   2020-11-15 [1] CRAN (R 4.1.2)
#>  rstudioapi    0.13    2020-11-12 [1] CRAN (R 4.1.2)
#>  sessioninfo   1.2.2   2021-12-06 [1] RSPM (R 4.1.0)
#>  stringi       1.7.6   2021-11-29 [1] RSPM (R 4.1.0)
#>  stringr       1.4.0   2019-02-10 [1] CRAN (R 4.1.2)
#>  styler        1.6.2   2021-09-23 [1] RSPM (R 4.1.0)
#>  testthat    * 3.1.1   2021-12-03 [1] CRAN (R 4.1.2)
#>  tibble        3.1.6   2021-11-07 [1] CRAN (R 4.1.2)
#>  utf8          1.2.2   2021-07-24 [1] CRAN (R 4.1.2)
#>  vctrs         0.3.8   2021-04-29 [1] CRAN (R 4.1.2)
#>  withr         2.4.3   2021-11-30 [1] RSPM (R 4.1.0)
#>  xfun          0.29    2021-12-14 [1] CRAN (R 4.1.2)
#>  yaml          2.2.1   2020-02-01 [1] CRAN (R 4.1.2)
#> 
#>  [1] /home/bob/R/x86_64-pc-linux-gnu-library/4.1
#>  [2] /opt/R/4.1.2/lib/R/library
#> 
#> ──────────────────────────────────────────────────────────────────────────────

[ALanguillaume]

I would be glad to work on a PR.