R Under development (unstable) (2024-10-14 r87233 ucrt) -- "Unsuffered Consequences"
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Platform: x86_64-w64-mingw32/x64

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> library(qwraps2)
> 
> # test that a warning is thrown when there are missmatches
> test <-
+   tryCatch(
+            spin_comments(hair = system.file("examples/spinner1.R", package = "qwraps2"))
+            , error   = function(e) e , warning = function(w) w)
> stopifnot(inherits(test, "warning"))
> 
> # verify return is FALSE
> x <- suppressWarnings(spin_comments(hair = system.file("examples/spinner1.R", package = "qwraps2")))
> stopifnot(isFALSE(x))
> x_notes <- attr(x, "notes")
> stopifnot(typeof(x_notes) == "character")
> stopifnot(identical(x_notes[1], "  * started on line 5; ended on line 7"))
> stopifnot(identical(x_notes[2], "  * no starting delimiter; ended on line 15"))
> stopifnot(identical(x_notes[3], "  * started on line 22; ended on line 24"))
> stopifnot(identical(x_notes[4], "  * started on line 20; no end delimiter"))
> 
> # verify no warning when there are no missmatches
> test <-
+   tryCatch(
+            spin_comments(hair = system.file("examples/spinner2.R", package = "qwraps2"))
+            , error   = function(e) e , warning = function(w) w)
> stopifnot(!inherits(test, "warning"))
> 
> # verify true
> x <- spin_comments(hair = system.file("examples/spinner2.R", package = "qwraps2"))
> stopifnot(x)
> 
> x_notes <- attr(x, "notes")
> stopifnot(typeof(x_notes) == "character")
> stopifnot(identical(x_notes[1], "  * started on line 2; ended on line 6"))
> stopifnot(identical(x_notes[2], "  * started on line 9; ended on line 11"))
> stopifnot(identical(x_notes[3], "  * started on line 14; ended on line 14"))
> stopifnot(identical(x_notes[4], "  * started on line 18; ended on line 18"))
> 
> 
> 
> proc.time()
   user  system elapsed 
   0.28    0.03    0.31