expect_known_scene.RdGets the current scene using scene3d, and
compares the result to a saved value, optionally closing
the window afterwards.
expect_known_scene(name,
close = TRUE,
file = paste0("testdata/", name, ".rds"),
...)By default, the base name of the file to save results in.
Not used if file is specified.
Whether to close the rgl window after the comparison.
The file in which to save the result.
Other arguments which will be passed to expect_known_value.
This function uses expect_known_value
to save a representation of the scene. During the comparison, the scene
is modified so that non-reproducible aspects are standardized
or omitted:
object ids are changed to start at 1.
system-specific font names and texture names are deleted.
the window is shifted to the top left of the screen.
Calls to expect_known_scene() enable testthat::local_edition(2)
for the duration of the call, so it will work in testthat “3rd edition”.
A value describing the changes to the saved object,
suitable for use in test_that().
if (FALSE) { # \dontrun{
# These lines can be included in testthat::test_that() code.
plot3d(1:10, 1:10, 1:10)
expect_known_scene("plot")
} # }