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d_unite <- data.frame(
x = c(NA, 1:3),
y = c(letters[1:3], NA_character_),
z = 6:9,
m = c("X", NA_character_, "Y", "Z"),
n = c("NATION", "COUNTRY", "NATION", NA_character_),
stringsAsFactors = FALSE
)
# for following tests, we need to check for correct column names,
# and correct values in new variable
test_that("data_unite: simple use case", {
# basic
out <- data_unite(d_unite, new_column = "xyz")
expect_identical(colnames(out), "xyz")
expect_identical(
out$xyz,
c("NA_a_6_X_NATION", "1_b_7_NA_COUNTRY", "2_c_8_Y_NATION", "3_NA_9_Z_NA")
)
# use existing column name
out <- data_unite(d_unite, new_column = "x")
expect_identical(colnames(out), "x")
expect_identical(
out$x,
c("NA_a_6_X_NATION", "1_b_7_NA_COUNTRY", "2_c_8_Y_NATION", "3_NA_9_Z_NA")
)
# select
out <- data_unite(d_unite, new_column = "xyz", select = c("x", "n"))
expect_identical(colnames(out), c(setdiff(colnames(d_unite), c("x", "n")), "xyz"))
expect_identical(
out$xyz,
c("NA_NATION", "1_COUNTRY", "2_NATION", "3_NA")
)
# select, use existing column name
out <- data_unite(d_unite, new_column = "x", select = c("x", "n"))
expect_identical(colnames(out), c(setdiff(colnames(d_unite), c("x", "n")), "x"))
expect_identical(
out$x,
c("NA_NATION", "1_COUNTRY", "2_NATION", "3_NA")
)
})
test_that("data_unite: remove_na", {
# basic
out <- data_unite(d_unite, new_column = "xyz", remove_na = TRUE)
expect_identical(colnames(out), "xyz")
expect_identical(
out$xyz,
c("a_6_X_NATION", "1_b_7_COUNTRY", "2_c_8_Y_NATION", "3_9_Z")
)
# use existing column name
out <- data_unite(d_unite, new_column = "x", remove_na = TRUE)
expect_identical(colnames(out), "x")
expect_identical(
out$x,
c("a_6_X_NATION", "1_b_7_COUNTRY", "2_c_8_Y_NATION", "3_9_Z")
)
# select
out <- data_unite(d_unite, new_column = "xyz", remove_na = TRUE, select = c("x", "n"))
expect_identical(colnames(out), c(setdiff(colnames(d_unite), c("x", "n")), "xyz"))
expect_identical(
out$xyz,
c("NATION", "1_COUNTRY", "2_NATION", "3")
)
# select, use existing column name
out <- data_unite(d_unite, new_column = "x", remove_na = TRUE, select = c("x", "n"))
expect_identical(colnames(out), c(setdiff(colnames(d_unite), c("x", "n")), "x"))
expect_identical(
out$x,
c("NATION", "1_COUNTRY", "2_NATION", "3")
)
})
test_that("data_unite: append", {
# basic
out <- data_unite(d_unite, new_column = "xyz", append = TRUE)
expect_identical(colnames(out), c("x", "y", "z", "m", "n", "xyz"))
expect_identical(
out$xyz,
c("NA_a_6_X_NATION", "1_b_7_NA_COUNTRY", "2_c_8_Y_NATION", "3_NA_9_Z_NA")
)
# remove NA
out <- data_unite(d_unite, new_column = "xyz", remove_na = TRUE, append = TRUE)
expect_identical(colnames(out), c("x", "y", "z", "m", "n", "xyz"))
expect_identical(
out$xyz,
c("a_6_X_NATION", "1_b_7_COUNTRY", "2_c_8_Y_NATION", "3_9_Z")
)
# append, using existing column name
expect_message({
out <- data_unite(d_unite, new_column = "x", append = TRUE)
})
expect_identical(colnames(out), c("x", "y", "z", "m", "n"))
expect_identical(
out$x,
c("NA_a_6_X_NATION", "1_b_7_NA_COUNTRY", "2_c_8_Y_NATION", "3_NA_9_Z_NA")
)
# append, using existing column name, and remove NA
expect_message({
out <- data_unite(d_unite, new_column = "x", remove_na = TRUE, append = TRUE)
})
expect_identical(colnames(out), c("x", "y", "z", "m", "n"))
expect_identical(
out$x,
c("a_6_X_NATION", "1_b_7_COUNTRY", "2_c_8_Y_NATION", "3_9_Z")
)
})
test_that("data_unite: combine select and append", {
# basic
out <- data_unite(d_unite, new_column = "xyz", append = TRUE, select = c("x", "n"))
expect_identical(colnames(out), c("x", "y", "z", "m", "n", "xyz"))
expect_identical(
out$xyz,
c("NA_NATION", "1_COUNTRY", "2_NATION", "3_NA")
)
# remove NA
out <- data_unite(d_unite, new_column = "xyz", remove_na = TRUE, append = TRUE, select = c("x", "n"))
expect_identical(colnames(out), c("x", "y", "z", "m", "n", "xyz"))
expect_identical(
out$xyz,
c("NATION", "1_COUNTRY", "2_NATION", "3")
)
# append, using existing column name
expect_message({
out <- data_unite(d_unite, new_column = "x", append = TRUE, select = c("x", "n"))
})
expect_identical(colnames(out), c("x", "y", "z", "m", "n"))
expect_identical(
out$x,
c("NA_NATION", "1_COUNTRY", "2_NATION", "3_NA")
)
# append, using existing column name, and remove NA
expect_message({
out <- data_unite(d_unite, new_column = "x", remove_na = TRUE, append = TRUE, select = c("x", "n"))
})
expect_identical(colnames(out), c("x", "y", "z", "m", "n"))
expect_identical(
out$x,
c("NATION", "1_COUNTRY", "2_NATION", "3")
)
})
test_that("data_unite: errors", {
expect_error(data_unite(d_unite), regex = "No name")
expect_error(data_unite(d_unite, new_column = c("a", "b")), regex = "a single string")
expect_error(expect_warning(data_unite(d_unite, new_column = "a", select = "huhu")), regex = "At least")
})
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