tests/testthat/_snaps/dplyr-lead-lag.md

In duckplyr: A 'DuckDB'-Backed Version of 'dplyr'

lag() gives informative error for objects

Code
  lag(ts(1:10))
Condition
  Error in `lag()`:
  ! `x` must be a vector, not a <ts>, do you want `stats::lag()`?

lead() / lag() validate n

Code
  lead(1:5, n = 1:2)
Condition
  Error in `lead()`:
  ! `n` must be a whole number, not an integer vector.
Code
  lead(1:5, -1)
Condition
  Error in `lead()`:
  ! `n` must be positive.

Code
  lag(1:5, n = 1:2)
Condition
  Error in `lag()`:
  ! `n` must be a whole number, not an integer vector.
Code
  lag(1:5, -1)
Condition
  Error in `lag()`:
  ! `n` must be positive.

lead() / lag() check for empty dots

Code
  lead(1:5, deault = 1)
Condition
  Error in `lead()`:
  ! `...` must be empty.
  x Problematic argument:
  * deault = 1

Code
  lag(1:5, deault = 1)
Condition
  Error in `lag()`:
  ! `...` must be empty.
  x Problematic argument:
  * deault = 1

lead() / lag() require that x is a vector

Code
  lead(environment())
Condition
  Error in `lead()`:
  ! `x` must be a vector, not an environment.

Code
  lag(environment())
Condition
  Error in `lag()`:
  ! `x` must be a vector, not an environment.

duckplyr documentation built on June 8, 2025, 10:53 a.m.