Nothing
context("Layer")
# Parameters --------------------------------------------------------------
test_that("aesthetics go in aes_params", {
l <- geom_point(size = "red")
expect_equal(l$aes_params, list(size = "red"))
})
test_that("Unknown params create error with validate_params = TRUE", {
expect_error(geom_point(blah = "red", validate_params = TRUE),
"Unknown parameters")
})
test_that("Unknown params don't create error with validate_params = FALSE", {
expect_silent(geom_point(blah = "red", validate_params = FALSE))
})
test_that("Unknown params go in extra_params, not aes_params", {
l <- geom_point(some_param = "value1",
size = "big",
validate_params = FALSE)
expect_equal(l$extra_params, list(some_param = "value1"))
expect_equal(l$aes_params, list(size = "big"))
})
# Calculated aesthetics ---------------------------------------------------
test_that("Bare name surround by .. is calculated", {
expect_true(animint2:::is_calculated_aes(aes(..density..)))
expect_true(animint2:::is_calculated_aes(aes(..DENSITY..)))
expect_false(animint2:::is_calculated_aes(aes(a..x..b)))
})
test_that("Calling using variable surround by .. is calculated", {
expect_true(animint2:::is_calculated_aes(aes(mean(..density..))))
expect_true(animint2:::is_calculated_aes(aes(mean(..DENSITY..))))
expect_false(animint2:::is_calculated_aes(aes(mean(a..x..b))))
})
test_that("strip_dots remove dots around calculated aesthetics", {
expect_equal(animint2:::strip_dots(aes(..density..))$x, quote(density))
expect_equal(animint2:::strip_dots(aes(mean(..density..)))$x, quote(mean(density)))
expect_equal(animint2:::strip_dots(aes(sapply(..density.., function(x) mean(x)))$x),
quote(sapply(density, function(x) mean(x))))
})
# Data extraction ---------------------------------------------------------
test_that("layer_data returns a data.frame", {
l <- geom_point()
expect_equal(l$layer_data(mtcars), mtcars)
l <- geom_point(data = head(mtcars))
expect_equal(l$layer_data(mtcars), head(mtcars))
l <- geom_point(data = head)
expect_equal(l$layer_data(mtcars), head(mtcars))
l <- geom_point(data = nrow)
expect_error(l$layer_data(mtcars), "Data function must return a data.frame")
})
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