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test-cols_merge.R
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test-cols_merge.R
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context("Ensuring that the `cols_merge*()` functions work as expected")
# Create a shortened version of `mtcars`
mtcars_short <- mtcars[1:5, ]
# Create a table with rownames and four columns of values
tbl <-
dplyr::tribble(
~col_1, ~col_2, ~col_3, ~col_4,
767.6, 928.1, 382.0, 674.5,
403.3, 461.5, 15.1, 242.8,
686.4, 54.1, 282.7, 56.3,
662.6, 148.8, 984.6, 928.1,
198.5, 65.1, 127.4, 219.3,
132.1, 118.1, 91.2, 874.3,
349.7, 307.1, 566.7, 542.9,
63.7, 504.3, 152.0, 724.5,
105.4, 729.8, 962.4, 336.4,
924.2, 424.6, 740.8, 104.2
)
# Function to skip tests if Suggested packages not available on system
check_suggests <- function() {
skip_if_not_installed("rvest")
skip_if_not_installed("xml2")
}
test_that("the function `cols_merge()` works correctly", {
# Check that specific suggested packages are available
check_suggests()
# Create a `tbl_html` object with `gt()`; merge two columns
# with a `pattern`
tbl_html <-
mtcars_short %>%
gt() %>%
cols_merge(
columns = c("drat", "wt"),
hide_columns = wt,
pattern = "{1} ({2})"
)
# Expect that merging statements are stored in `col_merge`
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$pattern %>%
expect_equal("{1} ({2})")
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$vars %>%
expect_equal(c("drat", "wt"))
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$type %>%
expect_equal("merge")
# Create a `tbl_html` object with `gt()`; merge two columns
# with a `pattern` and use `c()`
tbl_html <-
mtcars_short %>%
gt() %>%
cols_merge(
columns = c(drat, wt),
hide_columns = wt,
pattern = "{1} ({2})"
)
# Expect that merging statements are stored in `col_merge`
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$pattern %>%
expect_equal("{1} ({2})")
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$vars %>%
expect_equal(c("drat", "wt"))
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$type %>%
expect_equal("merge")
# Create a `tbl_html` object with `gt()`; merge two columns, twice,
# with two different `pattern`s; use `c()`
tbl_html <-
mtcars_short %>%
gt() %>%
cols_merge(
columns = c(drat, wt),
hide_columns = wt,
pattern = "{1} ({2})"
) %>%
cols_merge(
columns = c(gear, carb),
hide_columns = carb,
pattern = "{1}-{2}"
)
# Expect that merging statements are stored in `col_merge`
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$pattern %>%
expect_equal("{1} ({2})")
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$vars %>%
expect_equal(c("drat", "wt"))
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$type %>%
expect_equal("merge")
dt_col_merge_get(data = tbl_html) %>% .[[2]] %>% .$pattern %>%
expect_equal("{1}-{2}")
dt_col_merge_get(data = tbl_html) %>% .[[2]] %>% .$vars %>%
expect_equal(c("gear", "carb"))
dt_col_merge_get(data = tbl_html) %>% .[[2]] %>% .$type %>%
expect_equal("merge")
# Expect a warning if additional, out of scope columns, are
# included in `hide_columns`
expect_warning(
mtcars_short %>%
gt() %>%
cols_merge(
columns = c(drat, wt),
hide_columns = c(wt, carb),
)
)
})
test_that("the `cols_merge_uncert()` function works correctly", {
# Check that specific suggested packages are available
check_suggests()
# Create a `tbl_html` object with `gt()`; merge two columns
# with `cols_merge_uncert()`
tbl_html <-
tbl %>%
gt() %>%
cols_merge_uncert(
col_val = "col_1",
col_uncert = "col_2"
)
# Expect that merging statements are stored in `col_merge`
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$pattern %>%
expect_equal("{1}{sep}{2}")
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$vars %>%
expect_equal(c("col_1", "col_2"))
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$type %>%
expect_equal("merge_uncert")
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$sep %>%
expect_equal(" +/- ")
# Create a `tbl_html` object with `gt()`; merge two columns
# with `cols_merge_uncert()` and use `c()`
tbl_html <-
tbl %>%
gt() %>%
cols_merge_uncert(
col_val = col_1,
col_uncert = col_2
)
# Expect that merging statements are stored in `col_merge`
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$pattern %>%
expect_equal("{1}{sep}{2}")
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$vars %>%
expect_equal(c("col_1", "col_2"))
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$type %>%
expect_equal("merge_uncert")
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$sep %>%
expect_equal(" +/- ")
# Create a `tbl_html` object with `gt()`; merge two columns, twice,
# with `cols_merge_uncert()`
tbl_html <-
tbl %>%
gt() %>%
cols_merge_uncert(
col_val = col_1,
col_uncert = col_2
) %>%
cols_merge_uncert(
col_val = col_3,
col_uncert = col_4
)
# Expect that merging statements are stored in `col_merge`
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$pattern %>%
expect_equal("{1}{sep}{2}")
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$vars %>%
expect_equal(c("col_1", "col_2"))
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$type %>%
expect_equal("merge_uncert")
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$sep %>%
expect_equal(" +/- ")
dt_col_merge_get(data = tbl_html) %>% .[[2]] %>% .$pattern %>%
expect_equal("{1}{sep}{2}")
dt_col_merge_get(data = tbl_html) %>% .[[2]] %>% .$vars %>%
expect_equal(c("col_3", "col_4"))
dt_col_merge_get(data = tbl_html) %>% .[[2]] %>% .$type %>%
expect_equal("merge_uncert")
dt_col_merge_get(data = tbl_html) %>% .[[2]] %>% .$sep %>%
expect_equal(" +/- ")
# Create a `tbl_html` object with `gt()`; merge two
# columns with `cols_merge_uncert()` but use the `I()`
# function to keep the separator text as is
tbl_html <-
tbl %>%
gt() %>%
cols_merge_uncert(
col_val = col_1,
col_uncert = col_2,
sep = I(" +/- ")
)
# Expect that merging statements are stored in `col_merge`\
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$pattern %>%
expect_equal("{1}{sep}{2}")
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$vars %>%
expect_equal(c("col_1", "col_2"))
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$type %>%
expect_equal("merge_uncert")
# Get the separator object
sep <- dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$sep
# Expect that `sep` has the `AsIs` class
expect_is(sep, "AsIs")
expect_equal(as.character(sep), " +/- ")
expect_equal(sep, I(" +/- "))
})
test_that("the `cols_merge_range()` function works correctly", {
# Check that specific suggested packages are available
check_suggests()
# Create a `tbl_html` object with `gt()`; merge two columns
# with `cols_merge_range()`
tbl_html <-
tbl %>%
gt() %>%
cols_merge_range(
col_begin = "col_1",
col_end = "col_2"
)
# Expect that merging statements are stored in `col_merge`\
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$pattern %>%
expect_equal("{1}{sep}{2}")
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$vars %>%
expect_equal(c("col_1", "col_2"))
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$type %>%
expect_equal("merge_range")
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$sep %>%
expect_equal("--")
# Create a `tbl_html` object with `gt()`; merge two columns
# with `cols_merge_range()`
tbl_html <-
tbl %>%
gt() %>%
cols_merge_range(
col_begin = col_1,
col_end = col_2
)
# Expect that merging statements are stored in `col_merge`\
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$pattern %>%
expect_equal("{1}{sep}{2}")
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$vars %>%
expect_equal(c("col_1", "col_2"))
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$type %>%
expect_equal("merge_range")
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$sep %>%
expect_equal("--")
# Create a `tbl_html` object with `gt()`; merge two columns, twice,
# with `cols_merge_range()`
tbl_html <-
tbl %>%
gt() %>%
cols_merge_range(
col_begin = col_1,
col_end = col_2
) %>%
cols_merge_range(
col_begin = col_3,
col_end = col_4
)
# Expect that merging statements are stored in `col_merge`\
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$pattern %>%
expect_equal("{1}{sep}{2}")
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$vars %>%
expect_equal(c("col_1", "col_2"))
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$type %>%
expect_equal("merge_range")
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$sep %>%
expect_equal("--")
dt_col_merge_get(data = tbl_html) %>% .[[2]] %>% .$pattern %>%
expect_equal("{1}{sep}{2}")
dt_col_merge_get(data = tbl_html) %>% .[[2]] %>% .$vars %>%
expect_equal(c("col_3", "col_4"))
dt_col_merge_get(data = tbl_html) %>% .[[2]] %>% .$type %>%
expect_equal("merge_range")
dt_col_merge_get(data = tbl_html) %>% .[[2]] %>% .$sep %>%
expect_equal("--")
# Create a `tbl_html` object with `gt()`; merge two
# columns with `cols_merge_range()` but use the `I()`
# function to keep the `--` separator text as is
tbl_html <-
tbl %>%
gt() %>%
cols_merge_range(
col_begin = col_1,
col_end = col_2,
sep = I("--")
)
# Expect that merging statements are stored in `col_merge`\
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$pattern %>%
expect_equal("{1}{sep}{2}")
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$vars %>%
expect_equal(c("col_1", "col_2"))
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$type %>%
expect_equal("merge_range")
# Get the separator object
sep <- dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$sep
# Expect that `sep` has the `AsIs` class
expect_is(sep, "AsIs")
expect_equal(as.character(sep), "--")
expect_equal(sep, I("--"))
# Create a `tbl_html` object with `gt()`; merge two
# columns with `cols_merge_range()` but use the `I()`
# function to keep the `---` separator text as is
tbl_html <-
tbl %>%
gt() %>%
cols_merge_range(
col_begin = col_1,
col_end = col_2,
sep = I("---")
)
# Expect that merging statements are stored in `col_merge`\
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$pattern %>%
expect_equal("{1}{sep}{2}")
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$vars %>%
expect_equal(c("col_1", "col_2"))
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$type %>%
expect_equal("merge_range")
# Get the separator object
sep <- dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$sep
# Expect that `sep` has the `AsIs` class
expect_is(sep, "AsIs")
expect_equal(as.character(sep), "---")
expect_equal(sep, I("---"))
# Create two gt table objects; the first will be based
# on `tbl` while the second will use a different column name
# in `tbl` (`sep`) that collides with a pattern element name
tbl_html_1 <-
tbl %>%
gt() %>%
cols_merge_range(
col_begin = col_1,
col_end = col_2
)
tbl_html_2 <-
tbl %>%
dplyr::rename(sep = col_2) %>%
gt() %>%
cols_merge_range(
col_begin = col_1,
col_end = sep
)
# Expect that the HTML produced from the two tables is the same
expect_identical(
tbl_html_1 %>% as_raw_html(),
tbl_html_2 %>% as_raw_html()
)
# Create another variant that renames `col_2` as `1`, which
# might be thought to interfere with the default pattern
tbl_html_3 <-
tbl %>%
dplyr::rename(`1` = col_2) %>%
gt() %>%
cols_merge_range(
col_begin = col_1,
col_end = `1`
)
# Expect that the HTML produced from `tbl_html_2` and
# `tbl_html_3` is the same
expect_identical(
tbl_html_2 %>% as_raw_html(),
tbl_html_3 %>% as_raw_html()
)
})
test_that("the `cols_merge_n_pct()` function works correctly", {
# Check that specific suggested packages are available
check_suggests()
tbl_n_pct <-
dplyr::tribble(
~a, ~b,
1, 0.0714,
5, 0.3571,
0, 0.0,
2, 0.1429,
NA, NA,
6, 0.4286,
5, NA,
NA, 1000,
0, NA,
NA, 0
)
# Create a `tbl_html` object with `gt()`; merge two columns
# with `cols_merge_uncert()`
tbl_html <-
tbl_n_pct %>%
gt() %>%
cols_merge_n_pct(col_n = a, col_pct = b) %>%
fmt_percent(columns = b, decimals = 1)
# # Expect that merging statements are stored in `col_merge`
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$pattern %>%
expect_equal("{1}{sep}{2}")
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$vars %>%
expect_equal(c("a", "b"))
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$type %>%
expect_equal("merge_n_pct")
dt_col_merge_get(data = tbl_html) %>% .[[1]] %>% .$sep %>%
expect_equal("")
expect_equal(
(tbl_html %>% render_formats_test("html"))[["a"]],
c(
"1 (7.1%)", "5 (35.7%)", "0", "2 (14.3%)",
"NA", "6 (42.9%)", "5", "NA", "0", "NA"
)
)
expect_equal(
(tbl_html %>% render_formats_test("html"))[["b"]],
c(
"7.1%", "35.7%", "0.0%", "14.3%",
"NA", "42.9%", "NA", "100,000.0%", "NA",
"0.0%"
)
)
})