R version 4.6.0 RC (2026-04-17 r89914 ucrt) -- "Because it was There"
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Platform: x86_64-w64-mingw32/x64

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> library(testthat)
> library(patrick)
> library(bit64)
The assignment of character values to integer64 vectors and matrices with automatic coercion to integer64 will change to a more R consistent behaviour of coercing to character in future versions of bit64. If you wish you can update your code to the new behaviour by setting the option 'bit64.promoteInteger64ToCharacter' to TRUE.

Attaching package: 'bit64'

The following object is masked from 'package:utils':

    hashtab

The following objects are masked from 'package:base':

    %in%, :, array, as.factor, as.ordered, colSums, factor, intersect,
    is.double, is.element, match, matrix, order, rank, rowSums,
    setdiff, setequal, table, union

> 
> test_check("bit64")
1 000000000000000000000000000000000000000000000000000000000000001
0 111111111111111111111111111111111111111111111111111111111111111
[ FAIL 0 | WARN 0 | SKIP 3 | PASS 4534 ]

══ Skipped tests (3) ═══════════════════════════════════════════════════════════
• On CRAN (1): 'test-integer64.R:784:3'
• empty test (2): 'test-integer64.R:602:1', 'test-integer64.R:602:1'

[ FAIL 0 | WARN 0 | SKIP 3 | PASS 4534 ]
> 
> proc.time()
   user  system elapsed 
  44.81   11.12   56.62