tests/testthat/_snaps/pluck.md

In purrr: Functional Programming Tools

can pluck/chuck from NULL

Code
  chuck(NULL, 1)
Condition
  Error in `chuck()`:
  ! Can't pluck from NULL at level 1.

unsupported types have useful error

Code
  pluck(quote(x), 1)
Condition
  Error in `pluck_raw()`:
  ! Can't pluck from a symbol at level 1.
Code
  pluck(quote(f(x, 1)), 1)
Condition
  Error in `pluck_raw()`:
  ! Can't pluck from a call at level 1.
Code
  pluck(expression(1), 1)
Condition
  Error in `pluck_raw()`:
  ! Can't pluck from an expression vector at level 1.

dots must be unnamed

Code
  pluck(1, a = 1)
Condition
  Error in `pluck()`:
  ! Arguments in `...` must be passed by position, not name.
  x Problematic argument:
  * a = 1

Code
  chuck(1, a = 1)
Condition
  Error in `chuck()`:
  ! Arguments in `...` must be passed by position, not name.
  x Problematic argument:
  * a = 1

can pluck by position (positive and negative)

Code
  chuck(x, 0)
Condition
  Error in `chuck()`:
  ! Index 1 is zero.

Code
  chuck(x, 4)
Condition
  Error in `chuck()`:
  ! Index 1 exceeds the length of plucked object (4 > 3).

Code
  chuck(x, -4)
Condition
  Error in `chuck()`:
  ! Index 1 is zero.

Code
  chuck(x, -5)
Condition
  Error in `chuck()`:
  ! Negative index 1 must be greater than or equal to -3, not -5.

special numbers don't match

Code
  chuck(x, NA_integer_)
Condition
  Error in `chuck()`:
  ! Index 1 must be finite, not NA.

Code
  chuck(x, NA_real_)
Condition
  Error in `chuck()`:
  ! Index 1 must be finite, not NA.

Code
  chuck(x, NaN)
Condition
  Error in `chuck()`:
  ! Index 1 must be finite, not NaN.

Code
  chuck(x, Inf)
Condition
  Error in `chuck()`:
  ! Index 1 must be finite, not Inf.

Code
  chuck(x, -Inf)
Condition
  Error in `chuck()`:
  ! Index 1 must be finite, not -Inf.

can pluck by name

Code
  chuck(x, "b")
Condition
  Error in `chuck()`:
  ! Can't find name `b` in vector.

Code
  chuck(x, NA_character_)
Condition
  Error in `chuck()`:
  ! Index 1 can't be NA.

Code
  chuck(x, "")
Condition
  Error in `chuck()`:
  ! Index 1 can't be an empty string ("").

even if names don't exist

Code
  chuck(x, "a")
Condition
  Error in `chuck()`:
  ! Index 1 is attempting to pluck from an unnamed vector using a string name.

empty and NA names never match

Code
  chuck(x, "")
Condition
  Error in `chuck()`:
  ! Index 1 can't be an empty string ("").

Code
  chuck(x, NA_character_)
Condition
  Error in `chuck()`:
  ! Index 1 can't be NA.

require length 1 character/double vectors

Code
  pluck(1, 1:2)
Condition
  Error in `pluck_raw()`:
  ! Index 1 must have length 1, not 2.
Code
  pluck(1, integer())
Condition
  Error in `pluck_raw()`:
  ! Index 1 must have length 1, not 0.
Code
  pluck(1, NULL)
Condition
  Error in `pluck_raw()`:
  ! Index 1 must have length 1, not 0.
Code
  pluck(1, TRUE)
Condition
  Error in `pluck_raw()`:
  ! Index 1 must be a character or numeric vector, not `TRUE`.

validate index even when indexing NULL

Code
  pluck(NULL, 1:2)
Condition
  Error in `pluck_raw()`:
  ! Index 1 must have length 1, not 2.
Code
  pluck(NULL, TRUE)
Condition
  Error in `pluck_raw()`:
  ! Index 1 must be a character or numeric vector, not `TRUE`.

accessors throw correct errors

Code
  pluck(1:3, function() NULL)
Condition
  Error:
  ! unused argument (1:3)
Code
  pluck(1:3, function(x, y) y)
Condition
  Error:
  ! argument "y" is missing, with no default

can pluck/chuck environment by name

Code
  chuck(x, "y")
Condition
  Error in `chuck()`:
  ! Can't find object `y` in environment.

Code
  chuck(x, NA_character_)
Condition
  Error in `chuck()`:
  ! Index 1 can't be NA.

environments error with invalid indices

Code
  pluck(environment(), 1)
Condition
  Error in `pluck_raw()`:
  ! Index 1 must be a string, not a number.

Code
  pluck(environment(), letters)
Condition
  Error in `pluck_raw()`:
  ! Index 1 must have length 1, not 26.

can pluck/chuck from S4 objects

Code
  chuck(A, "b")
Condition
  Error in `chuck()`:
  ! Can't find slot `b`.

Code
  chuck(A, NA_character_)
Condition
  Error in `chuck()`:
  ! Index 1 can't be NA.

S4 objects error with invalid indices

Code
  pluck(A, 1)
Condition
  Error in `pluck_raw()`:
  ! Index 1 must be a string, not a number.

Code
  pluck(A, letters)
Condition
  Error in `pluck_raw()`:
  ! Index 1 must have length 1, not 26.

purrr documentation built on Aug. 10, 2023, 9:08 a.m.