assertthat
Easy Pre and Post Assertions
An extension to stopifnot() that makes it easy to declare the pre and post conditions that you code should satisfy, while also producing friendly error messages so that your users know what's gone wrong.
Tests Vignettes
Available Snapshots
This version of assertthat can be found in the following snapshots:
- 2019-10-04
- 2019-10-21
- 2019-11-09
- 2019-12-02
- 2019-12-15
- 2020-01-11
- 2020-01-29
- 2020-02-18
- 2020-03-07
- 2020-03-24
- 2020-04-18
- 2020-05-09
- 2020-05-27
- 2020-06-08
- 2020-06-25
- 2020-07-19
- 2020-08-15
- 2020-09-20
- 2020-10-24
- 2020-11-21
- 2020-12-21
- 2021-02-01
- 2021-03-08
- 2021-04-15
- 2021-05-16
- 2021-06-20
- 2021-07-23
- 2021-09-11
- 2021-10-17
- 2021-11-19
- 2022-02-11
- 2022-03-21
- 2022-05-16
- 2022-06-15
- 2022-08-31
- 2022-10-20
- 2022-12-21
- 2023-01-25
- 2023-03-13
- 2023-05-14
- 2023-06-29
- 2023-08-24
- 2023-09-19
- 2023-10-19
- 2023-12-05
- 2024-03-01
- 2024-06-12
- 2024-09-23
- 2024-11-20
- 2025-01-18
- 2025-02-26
- 2025-03-26
- 2025-04-23
- 2025-05-22
- 2025-06-16
- 2025-07-16
- 2025-08-18
- 2025-09-17
- 2025-10-21
- 2025-11-24