package_coverage() vs minimal package (on Windows?)

[jonthegeek]

In today's workshop, I made the minimal package available here.

When I check coverage, I get this error:

[main 15:40:52] > devtools:::test_coverage()
ℹ Computing test coverage for workshoppractice
Error in `-stats$Relevant`:
! invalid argument to unary operator
Backtrace:
    ▆
 1. └─devtools:::test_coverage()
 2.   └─covr::report(coverage)
 3.     └─covr:::to_report_data(x)
 4.       └─covr:::sort_file_stats(res$file_stats)
 5.         └─base::order(as.numeric(sub("%", "", stats$Coverage)), -stats$Relevant)

I found that it's specifically here:

coverage <- covr::package_coverage()
length(coverage)
#> 0

If I add a line to check_installed.R above the definition of the function (ie, an irrelevant line), coverage has length 3.
This is probably low priority since it goes away as soon as I do something real, but it was weird.

[jonthegeek]

To officially log it: someone mentioned they saw the same behavior on mac, so it isn't a windows-only thing. Could be related to mocking and/or snapshots.

[dragosmg]

I am getting the same error message when developing a toy package on macOS.

> test_coverage()
ℹ Computing test coverage for packageA
Error in -stats$Relevant : invalid argument to unary operator
Backtrace:
    ▆
 1. └─devtools::test_coverage()
 2.   └─covr::report(coverage)
 3.     └─covr:::to_report_data(x)
 4.       └─covr:::sort_file_stats(res$file_stats)
 5.         └─base::order(as.numeric(sub("%", "", stats$Coverage)), -stats$Relevant)

session info:

devtools::session_info()
#> ─ Session info ───────────────────────────────────────────────────────────────
#>  setting  value
#>  version  R version 4.3.1 (2023-06-16)
#>  os       macOS Sonoma 14.0
#>  system   x86_64, darwin20
#>  ui       X11
#>  language (EN)
#>  collate  en_US.UTF-8
#>  ctype    en_US.UTF-8
#>  tz       Europe/London
#>  date     2023-11-15
#>  pandoc   3.1.1 @ /Applications/RStudio.app/Contents/Resources/app/quarto/bin/tools/ (via rmarkdown)
#> 
#> ─ Packages ───────────────────────────────────────────────────────────────────
#>  package     * version date (UTC) lib source
#>  cachem        1.0.8   2023-05-01 [1] CRAN (R 4.3.1)
#>  callr         3.7.3   2022-11-02 [1] CRAN (R 4.3.0)
#>  cli           3.6.1   2023-03-23 [1] CRAN (R 4.3.0)
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#>  sessioninfo   1.2.2   2021-12-06 [1] CRAN (R 4.3.0)
#>  shiny         1.7.5.1 2023-10-14 [1] CRAN (R 4.3.1)
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#>  yaml          2.3.7   2023-01-23 [1] CRAN (R 4.3.0)
#> 
#>  [1] /Users/dragos/Library/R/x86_64/4.3/library
#>  [2] /Library/Frameworks/R.framework/Versions/4.3-x86_64/Resources/library
#> 
#> ──────────────────────────────────────────────────────────────────────────────

^{Created on 2023-11-15 with reprex v2.0.2}