Nothing

```
context("Miscellaneous Functions ")
# generating monthly sequence
x <- seq(from=as.Date("1992-01-01"), by = "months", length.out = 12)
# test_that("water_year() interprets the origin argument correctly", {
#
# # specify origin by an integer number
# for(i in 1:12) {
# expect_equal(water_year(x, origin = i, assign = "end"),
# expected = as.factor(c(rep(1992, i - 1), rep(1993, 13 - i))))
# }
#
# # specify origin by a POSIX object
# expect_equal(water_year(x, origin = as.POSIXct("2012-06-23"), assign = "end"),
# expected = as.factor(c(rep(1992, 5), rep(1993, 7))))
#
# # specify origin by a month name
# expect_equal(water_year(x, origin = "may"),
# expected = as.factor(c(rep(1991, 4), rep(1992, 8))))
# expect_equal(water_year(x, origin = "Se"),
# expected = as.factor(c(rep(1992, 8), rep(1993, 4))))
#
# # specify origin by the abbreviation of an institution
# expect_equal(water_year(x, origin = "din"),
# expected = as.factor(c(rep(1992, 10), rep(1993, 2))))
# expect_equal(water_year(x, origin = "usgs"),
# expected = as.factor(c(rep(1992, 9), rep(1993, 3))))
# })
#
# test_that("water_year() interprets the assign argument correctly", {
#
# expect_equal(water_year(x, origin = 4, assign = "majority"),
# expected = as.factor(c(rep(1991, 3), rep(1992, 9))))
# expect_equal(water_year(x, origin = 4, assign = "start"),
# expected = as.factor(c(rep(1991, 3), rep(1992, 9))))
#
# expect_equal(water_year(x, origin = 6, assign = "majority"),
# expected = as.factor(c(rep(1991, 5), rep(1992, 7))))
# expect_equal(water_year(x, origin = 6, assign = "start"),
# expected = as.factor(c(rep(1991, 5), rep(1992, 7))))
#
# expect_equal(water_year(x, origin = 7, assign = "majority"),
# expected = as.factor(c(rep(1992, 6), rep(1993, 6))))
# expect_equal(water_year(x, origin = 7, assign = "end"),
# expected = as.factor(c(rep(1992, 6), rep(1993, 6))))
#
# })
#
# test_that("moving averages are computed correctly", {
# # if window is of length 1, output equals input
# x <- 1:10
# expect_equal(ma(x, n = 1), x)
# expect_equal(ma(x, n = 1, sides = 2), x)
#
# # centered window vs. past values
# expect_equal(ma(x, n = 3, sides = 2), c(NA, 2:9, NA))
# expect_equal(ma(x, n = 3), c(NA, NA, 2:9))
# })
test_that("fill_na handles non-finite max.len argument", {
n <- 100
x <- rnorm(n)
x[sample(x = n, size = 20)] <- NA
# max.len = 0: no interpolation
expect_equal(fill_na(x, max.len = 0), x)
# max.len = Inf: behave like approx()
expect_equal(fill_na(x, max.len = Inf),
approx(seq_len(n), x, seq_len(n))$y)
})
test_that("fill_na interpolates sequences", {
y <- x <- seq(10, 2000, by = 34)
x[sample(length(x), size = 20)] <- NA
# margins should be finite
idx <- c(1, length(y))
x[idx] <- y[idx]
expect_equal(fill_na(x, max.len = Inf), y)
})
```

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