R Under development (unstable) (2025-04-19 r88162 ucrt) -- "Unsuffered Consequences"
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> NAME <- "style"
> source(file.path('_helper', 'init.R'))
> 
> ## - Style Palette ------------------------------------------------------------
> 
> all.equal(
+   capture.output(diffobj:::display_ansi_256_styles()),
+   rdsf(100)
+ )
[1] TRUE
> ## - crayon settings -----------------------------------------------------------
> 
>   # make sure crayon options are appropriately overriden
> local({
+   old.opt <- options(crayon.enabled=FALSE)
+   on.exit(options(old.opt))
+   print(identical(crayon::green("green"), "green"))
+   # should have ANSI coloring despite crayon disabled
+   print(
+     all.equal(
+       as.character(diffChr(letters[1:3], LETTERS[1:3])), rdsf(200)
+     )
+   )
+   identical(crayon::green("green"), "green")
+ })
[1] TRUE
[1] TRUE
[1] TRUE
> ## - Palette of Styles ---------------------------------------------------------
> 
> pos <- PaletteOfStyles()
> identical(
+   pos[["ansi256", "light", "rgb"]],
+   getClassDef("StyleAnsi256LightRgb", package="diffobj", inherits=FALSE)
+ )
[1] TRUE
> all.equal(
+   capture.output(show(pos)), rdsf(300)
+ )
[1] TRUE
> all.equal(
+   capture.output(summary(pos)), rdsf(400)
+ )
[1] TRUE
> 
> pos["ansi256", "light", "yb"] <- list(StyleRaw())
> all.equal(
+   c(pos["ansi256", "light", "yb"]@data), list(StyleRaw()),
+   check.environment=FALSE
+ )
[1] TRUE
> all.equal(
+   pos[["ansi256", "light", "yb"]], StyleRaw(),
+   check.environment=FALSE
+ )
[1] TRUE
> 
> ## - Auto Styles ---------------------------------------------------------------
> 
> try(diffChr(letters, LETTERS, style="auto", format="xml"))
Error in diffChr(target = letters, current = LETTERS, style = "auto",  : 
  Argument `format` must be one of `c("auto", "raw", "ansi8", "ansi256", "html")`.
> is(
+   diffChr(
+     letters, LETTERS, style="auto", format="auto", brightness="light",
+     term.colors=256
+   )@etc@style,
+   "StyleAnsi256LightYb"
+ )
[1] TRUE
> is(
+   diffChr(
+     letters, LETTERS, style="auto", format="auto", brightness="light",
+     term.colors=8
+   )@etc@style,
+   "StyleAnsi8NeutralYb"
+ )
[1] TRUE
> is(
+   diffChr(
+     letters, LETTERS, style="auto", format="auto", interactive=FALSE,
+     term.colors=1
+   )@etc@style,
+   "StyleRaw"
+ )
[1] TRUE
> is(
+   diffChr(
+     letters, LETTERS, style="auto", format="auto", interactive=TRUE,
+     term.colors=1  # note pager off by default in tests
+   )@etc@style,
+   "StyleRaw"
+ )
[1] TRUE
> is(
+   diffChr(
+     letters, LETTERS, style="auto", format="auto", interactive=TRUE,
+     pager="auto", term.colors=1
+   )@etc@style,
+   "StyleHtml"
+ )
[1] TRUE
> is(
+   diffChr(
+     letters, LETTERS, style="auto", format="auto", interactive=TRUE,
+     pager="auto", term.colors=9
+   )@etc@style,
+   "StyleAnsi8NeutralYb"
+ )
[1] TRUE
> is(
+   diffChr(
+     letters, LETTERS, style="auto", format="auto", interactive=TRUE,
+     pager="auto", brightness='light', term.colors=500
+   )@etc@style,
+   "StyleAnsi256LightYb"
+ )
[1] TRUE
> is(
+   diffChr(
+     letters, LETTERS, style="auto", format="html", interactive=TRUE,
+     pager="auto", color.mode=c("rgb", ansi8="yb")
+   )@etc@style,
+   "StyleHtmlLightRgb"
+ )
[1] TRUE
> is(
+   diffChr(
+     letters, LETTERS, style="auto", format="html", interactive=TRUE,
+     pager="auto", color.mode=c("rgb", html="yb")
+   )@etc@style,
+   "StyleHtmlLightYb"
+ )
[1] TRUE
> ## - Palette Params ------------------------------------------------------------
> 
> all.equal(
+   as.character(
+     diffChr(
+       letters, LETTERS, style="auto", format="ansi256",
+       brightness=c("light", ansi256="dark")
+   ) ),
+   rdsf(500)
+ )
[1] TRUE
> all.equal(
+   as.character(
+     diffChr(
+       letters, LETTERS, style="auto", format="ansi256", brightness=c("dark")
+   ) ),
+   rdsf(500)
+ )
[1] TRUE
> ## - Style Validation ----------------------------------------------------------
> 
> s.f <- StyleFuns()
> isTRUE(validObject(s.f))
[1] TRUE
> s.f@word.insert <- function(x, y) NULL
> try(validObject(s.f)) # word.insert
Error in validObject(s.f) : 
  invalid class "StyleFuns" object: Argument `word.insert` may not have non-default formals argument after the first.
> 
> try(diffChr(1,2, format='html', style=list(scale=1:3)))
Error in diffChr(target = 1, current = 2, format = "html", style = list(scale = 1:3)) : 
  Unable to instantiate `Style` object: Argument `scale` must be TRUE or FALSE
> try(diffChr(1,2, format='html', style=list(html.output="a")))
Error in diffChr(target = 1, current = 2, format = "html", style = list(html.output = "a")) : 
  Unable to instantiate `Style` object: Argument `html.output` must be in `c("auto", "page", "diff.only", "diff.w.style")`.
> 
> ## - Pallette w/ Objs ----------------------------------------------------------
> 
> pal <- PaletteOfStyles()
> pal["raw", "neutral", "rgb"] <- list(new(pal[["raw", "neutral", "rgb"]]))
> 
> suppressWarnings(
+   withCallingHandlers(
+     invisible(diffChr(
+       letters, LETTERS, format="raw", brightness="neutral", color.mode="rgb",
+       palette.of.styles=pal, style=list(na.sub="NA")
+     )),
+     warning=function(e) writeLines(conditionMessage(e))
+   )
+ )
Extra `style` arguments cannot be applied because selected object `palette.of.styles` is a `Style` instance rather than a `Style` "classRepresentation".  See documentation for the `style` parameter for details.
> ## - External Files ------------------------------------------------------------
> 
> isTRUE(file_test("-f", diffobj_css()))
[1] TRUE
> isTRUE(file_test("-f", diffobj_js()))
[1] TRUE
> 
> proc.time()
   user  system elapsed 
   2.92    0.26    3.21