jonkeane commented on a change in pull request #11355:
URL: https://github.com/apache/arrow/pull/11355#discussion_r727257627
##########
File path: r/tests/testthat/test-compute-arith.R
##########
@@ -67,10 +67,14 @@ test_that("Division", {
expect_equal(a %/% 2, Array$create(c(0L, 1L, 1L, 2L, NA_integer_)))
expect_equal(a / 2 / 2, Array$create(c(1:4 / 2 / 2, NA_real_)))
expect_equal(a %/% 2 %/% 2, Array$create(c(0L, 0L, 0L, 1L, NA_integer_)))
+ expect_equal(a / 0, Array$create(c(Inf, Inf, Inf, Inf, NA_real_)))
+ # TODO add tests for integer division %/% by 0
Review comment:
We should add the ticket number that we just created here (or we could
remove these todos totally)
##########
File path: r/tests/testthat/test-dplyr-funcs-math.R
##########
@@ -288,3 +288,20 @@ test_that("trig functions", {
df
)
})
+
+test_that("arith functions ", {
+ df <- tibble(x = c(1:5, NA))
+
+ expect_dplyr_equal(
+ input %>%
+ transmute(int_div = x %/% 2,
+ addition = x + 1,
+ multiplication = x * 3,
+ subtraction = x - 5,
+ division = x / 2,
+ power = x ^ 3,
+ modulo = x %% 3) %>%
+ collect(),
Review comment:
Minor styling nit (the linter will probably complain about this anyway)
```suggestion
input %>%
transmute(
addition = x + 1,
subtraction = x - 5,
multiplication = x * 3,
division = x / 2,
int_div = x %/% 2,
power = x ^ 3,
modulo = x %% 3
) %>%
collect(),
```
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