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context("geom_hex")
test_that("density and value summaries are available", {
df <- data_frame(x = c(1, 1, 1, 2), y = c(1, 1, 1, 2))
base <- ggplot(df, aes(x, y)) +
geom_hex()
out <- layer_data(base)
expect_equal(nrow(out), 2)
expect_equal(out$density, c(0.75, 0.25), tolerance = 1e-7)
expect_equal(out$count, c(3, 1), tolerance = 1e-7)
})
test_that("size and linetype are applied", {
df <- data_frame(x = c(1, 1, 1, 2), y = c(1, 1, 1, 2))
plot <- ggplot(df, aes(x, y)) +
geom_hex(color = "red", size = 4, linetype = 2)
gpar <- layer_grob(plot)[[1]]$children[[1]]$gp
expect_equal(gpar$lwd, c(4, 4) * .pt, tolerance = 1e-7)
expect_equal(gpar$lty, c(2, 2), tolerance = 1e-7)
})
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