Nothing
test_that("decimal_date handles vectors", {
x <- as.POSIXct(c("2008-08-03 13:01:59", "2009-08-03 10:01:59"), tz = "UTC")
expect_equal(round(decimal_date(x), 3), c(2008.589, 2009.587))
})
test_that("decimal_date handles first second of year without returning NaN", {
expect_equal(decimal_date(ymd("2012-01-01")), 2012)
})
test_that("date_decimal works as expected", {
y <- 2008.58846
expect_equal(as.numeric(date_decimal(y)), 1217754118)
})
test_that("date_decimal handles vectors", {
y <- c(2008.589, 2009.587)
expect_equal(as.numeric(date_decimal(y)), c(1217771194, 1249279632))
})
test_that("date_decimal reverses decimal_date", {
date <- ymd("2012-03-01", tz = "UTC")
decimal <- decimal_date(date)
expect_equal(date_decimal(decimal), date)
date2 <- ymd("2012-03-01")
decimal2 <- decimal_date(date2)
expect_equal(as.Date(date_decimal(decimal2)), date2)
## before day light shift
date3 <- ymd_hms("2008-02-03 10:01:59", tz = "America/New_York")
decimal3 <- decimal_date(date3)
date_decimal(decimal3, tz = "America/New_York")
expect_equal(date_decimal(decimal3, tz = "America/New_York"), date3)
## after
date <- ymd_hms("2008-05-03 10:01:59", tz = "America/New_York")
decimal <- decimal_date(date)
date_decimal(decimal, tz = "America/New_York")
expect_equal(date_decimal(decimal, tz = "America/New_York"), date)
})
test_that("decimal_date returns NA on NA date input", {
expect_equal(decimal_date(as.Date(NA)), as.numeric(NA))
})
test_that("decimal_date correctly handles daylight savings time", {
date4 <- ymd_hms("2016-03-13 01:00:00", tz = "America/New_York")
date4 <- date4 + dhours(-1:1)
decimal4 <- decimal_date(date4)
expect_equal(c(2016.196721, 2016.1968351, 2016.196948), decimal4)
diff.decimal <- diff(decimal4)
expect_equal(diff.decimal[1], diff.decimal[2])
expect_equal(c(2016.197290, 2016.197404, 2016.1975182), decimal_date(with_tz(date4, "UTC")))
})
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