Nothing
context("get_incr")
test_that("get_incr works", {
expect_equal(ezplot:::get_incr(letters), 1)
expect_equal(ezplot:::get_incr(factor(letters)), 1)
seq = seq(as.POSIXct("2011-01-01"), by = "1 day", length.out = 5)
expect_equal(ezplot:::get_incr(seq), 60 * 60 * 24)
})
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