tests/testthat/_snaps/slice-SpatVector.md

In tidyterra: 'tidyverse' Methods and 'ggplot2' Helpers for 'terra' Objects

slice errors if positive and negative indices mixed

Code
  slice(empty, 1, -1)
Condition
  Error in `dplyr::slice()`:
  ! Can't compute indices.
  Caused by error:
  ! Can't subset elements with `1`.
  x Negative and positive locations can't be mixed.
  i Subscript `1` has a positive value at location 1.

slice errors if index is not numeric

Code
  slice(empty, "a")
Condition
  Error in `dplyr::slice()`:
  i In argument: `"a"`.
  Caused by error:
  ! Can't subset elements with `"a"`.
  x `"a"` must be numeric, not the string "a".

user errors are correctly labelled

Code
  slice(df, 1 + "")
Condition
  Error in `dplyr::slice()`:
  i In argument: `1 + ""`.
  Caused by error in `1 + ""`:
  ! non-numeric argument to binary operator
Code
  slice(group_by(df, x), 1 + "")
Condition
  Error in `dplyr::slice()`:
  i In argument: `1 + ""`.
  i In group 1: `x = 1`.
  Caused by error in `1 + ""`:
  ! non-numeric argument to binary operator

... can't be named

Code
  slice(df, 1, foo = g)
Condition
  Error in `dplyr::slice()`:
  ! Arguments in `...` must be passed by position, not name.
  x Problematic argument:
  * foo = g

slice_helpers() call get_slice_size()

Code
  slice_head(df, n = "a")
Condition
  Error in `dplyr::slice_head()`:
  ! `n` must be a round number, not the string "a".
Code
  slice_tail(df, n = "a")
Condition
  Error in `dplyr::slice_tail()`:
  ! `n` must be a round number, not the string "a".
Code
  slice_min(df, x, n = "a")
Condition
  Error in `dplyr::slice_min()`:
  ! `n` must be a round number, not the string "a".
Code
  slice_max(df, x, n = "a")
Condition
  Error in `dplyr::slice_max()`:
  ! `n` must be a round number, not the string "a".
Code
  slice_sample(df, n = "a")
Condition
  Error in `dplyr::slice_sample()`:
  ! `n` must be a round number, not the string "a".

slice_*() checks that n= is explicitly named and ... is empty

Code
  slice_head(df, 5)
Condition
  Error in `slice_head()`:
  ! `n` must be explicitly named.
  i Did you mean `slice_head(n = 5)`?
Code
  slice_tail(df, 5)
Condition
  Error in `slice_tail()`:
  ! `n` must be explicitly named.
  i Did you mean `slice_tail(n = 5)`?
Code
  slice_min(df, x, 5)
Condition
  Error in `slice_min()`:
  ! `n` must be explicitly named.
  i Did you mean `slice_min(n = 5)`?
Code
  slice_max(df, x, 5)
Condition
  Error in `slice_max()`:
  ! `n` must be explicitly named.
  i Did you mean `slice_max(n = 5)`?
Code
  slice_sample(df, 5)
Condition
  Error in `slice_sample()`:
  ! `n` must be explicitly named.
  i Did you mean `slice_sample(n = 5)`?

Code
  slice_head(df, 5, 2)
Condition
  Error in `dplyr::slice_head()`:
  ! `...` must be empty.
  x Problematic arguments:
  * ..1 = 5
  * ..2 = 2
  i Did you forget to name an argument?
Code
  slice_tail(df, 5, 2)
Condition
  Error in `dplyr::slice_tail()`:
  ! `...` must be empty.
  x Problematic arguments:
  * ..1 = 5
  * ..2 = 2
  i Did you forget to name an argument?
Code
  slice_min(df, x, 5, 2)
Condition
  Error in `dplyr::slice_min()`:
  ! `...` must be empty.
  x Problematic arguments:
  * ..1 = 5
  * ..2 = 2
  i Did you forget to name an argument?
Code
  slice_max(df, x, 5, 2)
Condition
  Error in `dplyr::slice_max()`:
  ! `...` must be empty.
  x Problematic arguments:
  * ..1 = 5
  * ..2 = 2
  * ..3 = 5
  * ..4 = 2
  i Did you forget to name an argument?
Code
  slice_sample(df, 5, 2)
Condition
  Error in `dplyr::slice_sample()`:
  ! `...` must be empty.
  x Problematic arguments:
  * ..1 = 5
  * ..2 = 2
  i Did you forget to name an argument?

slice_helper by errors use correct context and correct by_arg

Code
  slice_head(gdf, n = 1, by = x)
Condition
  Error in `dplyr::slice_head()`:
  ! Can't supply `by` when `.data` is a grouped data frame.
Code
  slice_tail(gdf, n = 1, by = x)
Condition
  Error in `dplyr::slice_tail()`:
  ! Can't supply `by` when `.data` is a grouped data frame.
Code
  slice_min(gdf, order_by = x, by = x)
Condition
  Error in `dplyr::slice_min()`:
  ! Can't supply `by` when `.data` is a grouped data frame.
Code
  slice_max(gdf, order_by = x, by = x)
Condition
  Error in `dplyr::slice_max()`:
  ! Can't supply `by` when `.data` is a grouped data frame.
Code
  slice_sample(gdf, n = 1, by = x)
Condition
  Error in `dplyr::slice_sample()`:
  ! Can't supply `by` when `.data` is a grouped data frame.

slice_min/max() check size of order_by=

Code
  slice_min(df, 1:6)
Condition
  Error in `dplyr::slice_min()`:
  ! Can't compute indices.
  Caused by error:
  ! `order_by` must have size 10, not size 6.
Code
  slice_max(df, 1:6)
Condition
  Error in `dplyr::slice_max()`:
  ! Can't compute indices.
  Caused by error:
  ! `order_by` must have size 10, not size 6.

tidyterra documentation built on March 11, 2026, 9:08 a.m.