Thanks!

The testing routine of tmap cannot be any worse: there are no tests except for the examples in the documentation.

Ok - it seems to be ok for your review, @mtennekes - https://github.com/mtennekes/tmap/issues/585#issuecomment-897409941

Great! It works fine. When I made this typo:

tmap_save(m, "choropleth.pdf", device = "cairo_pdf", height = 7) # height interpreted in inches

(cairo_pdf should be unquoted) I got this not-helpful error message:

# Error in dev(filename = filename, width = width, height = height, ...) : 
#  could not find function "dev"

👍🏻

It should be better now:

library(tmap)
data("World")
tm = qtm(World)
tmap_save(tm, "choropleth.pdf", device = "cairo_pdf", height = 7)
#> Error: "cairo_pdf" graphic device does not exist

^{Created on 2021-08-12 by the reprex package (v2.0.1)}

Let me know if you have better idea about the error message content.