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# Visual tests ------------------------------------------------------------
skip_if(utils::packageVersion('grid') < "3.6")
test_that("geom_polygon draws correctly", {
tbl <- data_frame(
x = c(
0, 10, 10, 0,
20, 30, 30, 20,
22, 28, 28, 22
),
y = c(
0, 0, 10, 10,
20, 20, 30, 30,
22, 22, 28, 28
),
group = c(rep(1, 4), rep(2, 8)),
subgroup = c(rep(1, 8), rep(2, 4))
)
p <- ggplot(tbl, aes(x, y, group = group, subgroup = subgroup)) +
geom_polygon()
expect_doppelganger("basic polygon plot", p)
})
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