Error in expect_equal for long arguments that use `::` for method call

[const-ae]

In the latest version of testthat, a call to expect_equal() can produce an error in is_call_infix() because as far as I can tell is_call_infix expects x[[1]] to be a single element. The problem only occurs for very specific function calls:

• the argument has to be very long so that deparse returns a vector with length > 1
• the function call has to have exactly two arguments

See this reprex for a reproducible example:

Sys.setenv("_R_CHECK_LENGTH_1_LOGIC2_" = "TRUE")
print(base::any(c(veryyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy_long_name = TRUE), na.rm=TRUE))
#> [1] TRUE
testthat::expect_equal(base::any(c(veryyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy_long_name = TRUE), na.rm=TRUE), TRUE)
#> Error in name %in% base || grepl("^%.*%$", name): 'length(x) = 3 > 1' in coercion to 'logical(1)'

^{Created on 2021-10-07 by the reprex package (v2.0.1)}

Session info

sessioninfo::session_info()
#> ─ Session info ───────────────────────────────────────────────────────────────
#>  setting  value                       
#>  version  R version 4.1.1 (2021-08-10)
#>  os       macOS Big Sur 10.16         
#>  system   x86_64, darwin17.0          
#>  ui       X11                         
#>  language (EN)                        
#>  collate  en_US.UTF-8                 
#>  ctype    en_US.UTF-8                 
#>  tz       Europe/Berlin               
#>  date     2021-10-07                  
#> 
#> ─ Packages ───────────────────────────────────────────────────────────────────
#>  package     * version date       lib source        
#>  backports     1.2.1   2020-12-09 [1] CRAN (R 4.1.0)
#>  cli           3.0.1   2021-07-17 [1] CRAN (R 4.1.0)
#>  crayon        1.4.1   2021-02-08 [1] CRAN (R 4.1.0)
#>  digest        0.6.27  2020-10-24 [1] CRAN (R 4.1.0)
#>  ellipsis      0.3.2   2021-04-29 [1] CRAN (R 4.1.0)
#>  evaluate      0.14    2019-05-28 [1] CRAN (R 4.1.0)
#>  fansi         0.5.0   2021-05-25 [1] CRAN (R 4.1.0)
#>  fastmap       1.1.0   2021-01-25 [1] CRAN (R 4.1.0)
#>  fs            1.5.0   2020-07-31 [1] CRAN (R 4.1.0)
#>  glue          1.4.2   2020-08-27 [1] CRAN (R 4.1.0)
#>  highr         0.9     2021-04-16 [1] CRAN (R 4.1.0)
#>  htmltools     0.5.2   2021-08-25 [1] CRAN (R 4.1.0)
#>  knitr         1.34    2021-09-09 [1] CRAN (R 4.1.1)
#>  lifecycle     1.0.0   2021-02-15 [1] CRAN (R 4.1.0)
#>  magrittr      2.0.1   2020-11-17 [1] CRAN (R 4.1.0)
#>  pillar        1.6.2   2021-07-29 [1] CRAN (R 4.1.0)
#>  pkgconfig     2.0.3   2019-09-22 [1] CRAN (R 4.1.0)
#>  purrr         0.3.4   2020-04-17 [1] CRAN (R 4.1.0)
#>  R6            2.5.1   2021-08-19 [1] CRAN (R 4.1.0)
#>  reprex        2.0.1   2021-08-05 [1] CRAN (R 4.1.0)
#>  rlang         0.4.11  2021-04-30 [1] CRAN (R 4.1.0)
#>  rmarkdown     2.11    2021-09-14 [1] CRAN (R 4.1.1)
#>  rstudioapi    0.13    2020-11-12 [1] CRAN (R 4.1.0)
#>  sessioninfo   1.1.1   2018-11-05 [1] CRAN (R 4.1.0)
#>  stringi       1.7.4   2021-08-25 [1] CRAN (R 4.1.0)
#>  stringr       1.4.0   2019-02-10 [1] CRAN (R 4.1.0)
#>  styler        1.5.1   2021-07-13 [1] CRAN (R 4.1.0)
#>  testthat      3.1.0   2021-10-04 [1] CRAN (R 4.1.0)
#>  tibble        3.1.4   2021-08-25 [1] CRAN (R 4.1.0)
#>  utf8          1.2.2   2021-07-24 [1] CRAN (R 4.1.0)
#>  vctrs         0.3.8   2021-04-29 [1] CRAN (R 4.1.0)
#>  withr         2.4.2   2021-04-18 [1] CRAN (R 4.1.0)
#>  xfun          0.26    2021-09-14 [1] CRAN (R 4.1.1)
#>  yaml          2.2.1   2020-02-01 [1] CRAN (R 4.1.0)
#> 
#> [1] /Library/Frameworks/R.framework/Versions/4.1/Resources/library

Best, Constantin

[LTLA]

I was also wondering why some of my packages were failing on the BioC build machines, but not locally. After jogging my memory, I remembered that the BioC machines turn on _R_CHECK_LENGTH_1_LOGIC2_, leading to the failure above. In my case, it was for invocations for expect_true, but I suppose that anything calling testthat::is_call_infix() would be affected.

[rdiaz02]

For completeness, I have just tested (in two different R 4.1.1 versions, svn rev 80725 and 80883) the exact same lines of code (see below) that triggered the error reported in #1470 (comment), with the settings

Sys.setenv("_R_CHECK_LENGTH_1_CONDITION_" = "verbose")
Sys.setenv("_R_CHECK_LENGTH_1_LOGIC2_" = "verbose")

using testthat versions 3.0.4 and 3.1.1 . The code fails with version 3.1.1 but not with version 3.0.4.

Sys.setenv("_R_CHECK_LENGTH_1_CONDITION_" = "verbose")
Sys.setenv("_R_CHECK_LENGTH_1_LOGIC2_" = "verbose")
library(testthat)
library(OncoSimulR)
packageVersion("testthat")

p5 <- cbind(c(0L), c(5L))
m5 <- matrix(0L, ncol = 6, nrow = 6); colnames(m5) <- rownames(m5) <- 0:5
m5[1, 2:6] <- 1L

expect_equal(
    OncoSimulR:::adjmat.to.restrictTable(
        OncoSimulR:::posetToGraph(p5, names = 1:5, addroot = FALSE, type = "adjmat"),
        root = FALSE),
    OncoSimulR:::adjmat.to.restrictTable(
        OncoSimulR:::posetToGraph(p5, names = 0:5, addroot = TRUE, type = "adjmat"),
        root = TRUE))

Note, though, that the failure under testthat version 3.1.1 does not happen with

Sys.setenv("_R_CHECK_LENGTH_1_CONDITION_ "= "package:_R_CHECK_PACKAGE_NAME_,abort,verbose")
Sys.setenv("_R_CHECK_LENGTH_1_LOGIC2_" = "package:_R_CHECK_PACKAGE_NAME_,abort,verbose")

and it seems that in the last couple of weeks BioC has changed back the settings of _R_CHECK_LENGTH_1_CONDITION_, _R_CHECK_LENGTH_1_LOGIC2_ to package:_R_CHECK_PACKAGE_NAME_,abort,verbose (I compared my version downloaded in 6-october with the current one from https://bioconductor.org/checkResults/devel/bioc-LATEST/Renviron.bioc, and those settings have changed).

[LTLA]

Yes, it was changed on Tuesday to keep the builds running until this issue is fixed; see here.

[hadley]

Plan is to fix this using a function in rlang developed specifically for this purpose; rlang 1.0.0 should be going to CRAN early next week so we'll hopefully get a fix out by the end of next week