R Under development (unstable) (2025-04-19 r88162 ucrt) -- "Unsuffered Consequences"
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> NAME <- "diffFile"
> source(file.path('_helper', 'init.R'))
> 
> # - Code File ------------------------------------------------------------------
> 
> # # compare two crayon file versions
> # # These should eventually just be downloaded and made into diffFile tests
> 
> f.p.1 <- file.path("_helper", "objs", "diffFile", "s.o.3f1f68.R")
> f.p.2 <- file.path("_helper", "objs", "diffFile", "s.o.30dbe0.R")
> 
> # url.1 <- "https://raw.githubusercontent.com/gaborcsardi/crayon/3f1f68ab177b82a27e754a58264af801f7194820/R/string_operations.r"
> # url.2 <- "https://raw.githubusercontent.com/gaborcsardi/crayon/30dbe0d4d92157350af3cb3aeebd6d9a9cdf5c0e/R/string_operations.r"
> # f.1 <- readLines(url.1)
> # f.2 <- readLines(url.2)
> # writeLines(f.1, f.p.1)
> # writeLines(f.2, f.p.2)
> 
> all.equal(as.character(diffFile(f.p.1, f.p.2)), rdsf(100))
[1] TRUE
> 
> # - RDS ------------------------------------------------------------------------
> 
> f1 <- tempfile()
> f2 <- tempfile()
> 
> mx1 <- mx2 <- matrix(1:9, 3)
> mx2[5] <- 99
> saveRDS(mx1, f1)
> saveRDS(mx2, f2)
> 
> is(diffobj:::get_rds(f1), "matrix")
[1] TRUE
> is(diffobj:::get_rds(f2), "matrix")
[1] TRUE
> 
> ref <- as.character(diffPrint(mx1, mx2))
> identical(as.character(diffPrint(mx1, f2, cur.banner="mx2")), ref)
[1] TRUE
> identical(as.character(diffPrint(f1, mx2, tar.banner="mx1")), ref)
[1] TRUE
> identical(
+   as.character(diffPrint(f1, f2, tar.banner="mx1", cur.banner="mx2")), ref
+ )
[1] TRUE
> isTRUE(!identical(as.character(diffPrint(mx1, f2, rds=FALSE)), ref))
[1] TRUE
> unlink(c(f1, f2))
> 
> # - file -----------------------------------------------------------------------
> 
> f1 <- tempfile()
> f2 <- tempfile()
> letters2 <- letters
> letters2[15] <- "HELLO"
> 
> writeLines(letters, f1)
> writeLines(letters2, f2)
> 
> identical(
+   as.character(diffChr(letters, letters2, tar.banner="f1", cur.banner="f2")),
+   as.character(diffFile(f1, f2))
+ )
[1] TRUE
> unlink(c(f1, f2))
> 
> # issue 133 h/t Noam Ross, thanks for the test
> 
> x <- tempfile()
> y <- tempfile()
> cat("Hello\nthere\n", file = x)
> file.copy(x, y)
[1] TRUE
> identical(
+   as.character(diffFile(x, y, format = "raw")),
+   structure(
+     c("No visible differences between objects.",
+       "< x          > y        ",
+       "@@ 1,2 @@    @@ 1,2 @@  ",
+       "  Hello        Hello    ",
+       "  there        there    "), len = 5L)
+ )
[1] TRUE
> unlink(c(x, y))
> 
> # - CSV ------------------------------------------------------------------------
> 
> f1 <- tempfile()
> f2 <- tempfile()
> 
> iris2 <- iris
> iris2$Sepal.Length[25] <- 9.9
> 
> write.csv(iris, f1, row.names=FALSE)
> write.csv(iris2, f2, row.names=FALSE)
> 
> identical(
+   as.character(diffPrint(iris, iris2, tar.banner="f1", cur.banner="f2")),
+   as.character(diffCsv(f1, f2))
+ )
[1] TRUE
> unlink(c(f1, f2))
> 
> 
> proc.time()
   user  system elapsed 
   1.10    0.20    1.76