R Observatory: Metrics for hedgehog version 0.2

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

hedgehog

0.2Package record

Property-Based Testing

1packages dependsuggested by 6

12.2Kdownloads / year

86.8%test coverage

13/13flavors OK

Overview

About

Maintained by Huw CampbellCRAN page ↗GitHub ↗Issues ↗

Hedgehog will eat all your bugs. 'Hedgehog' is a property-based testing package in the spirit of 'QuickCheck'. With 'Hedgehog', one can test properties of their programs against randomly generated input, providing far superior test coverage compared to unit testing. One of the key benefits of 'Hedgehog' is integrated shrinking of counterexamples, which allows one to quickly find the cause of bugs, given salient examples when incorrect behaviour occurs.

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("hedgehog", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("hedgehogqa/r-hedgehog")

Development version from hedgehogqa/r-hedgehog. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-hedgehog

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-hedgehog

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-hedgehog

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 1.8 min · r-oldrel-macos-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-06-08
WARNING12 OK, 1 WARNING2026-06-07
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.2

README· In the repository, left out of the releaseVignettesYes · 2 · dynamicNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 29includes a package overview page
Examples that run: 100%12 run in a plain check
Exported functions with examples: 44%
Documented parameters: 98%
Return-value docs: 16%
Help pages citing references: 3%

Vignettes (2)

How these are measured

Downloads

12.2K

CRAN downloads in the past year

Rank #3,576 · ~34/day · ~1K/mo

Releases R versions

Daily download trend is not available in this view yet.

1.1K30 days

2.9K90 days

12.2K1 year

Compare downloads with other packages →

Also on5.9K r2u3 autocran

How downloads are counted

Repository

hedgehogqa/r-hedgehog ↗Organization: hedgehogqa

62Stars

6Forks

3Open issues

1Open PRs

0Releases

67Commits

4Commit identities

67 commits · Last activity 2025-11-03

Responsiveness

How these are sampled

PRs merged (all time): 91%
Median days to close, 50 most recently updated closed issues: 24
Median days to close, 50 most recently updated closed PRs: 2

Forks over time

2026-07-14 · 52026-07-28 · 6

How these are measured

PracticesBeta

3 development-tooling and community-health practices detected across 3 families in the upstream repository

Checks run against github.com/hedgehogqa/r-hedgehog on 2026-10-22.

Continuous integration (1)

Travis CI (config file)

Reproducibility and dev environment (1)

Nix

CRAN release process (1)

cran-comments.md

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Installing hedgehog adds 24 packages (11 with compiled code, 6.6 MB of source tarballs). Heaviest: fs 1.4 MB, jsonlite 1.0 MB, testthat 814 KB.

Depends (1)

testthat

Imports (1)

rlang

LinkingTo (0)

none

Suggests (2)

knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

Imports 1

Suggested by 6

Depends, Imports or LinkingTo, most downloaded first

quickcheck

Suggests, most downloaded first

simstudy raddr autodb tidycreel heumilkr binpackr

How these are counted

Code & Tests

People & History

People (1)

Huw Campbell

Author, Maintainer since 0.1 (2018)

Releases (2)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
0.2Latest
record
2025-11-03 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
0.1
record
2018-08-22
R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2018-08-22
Total releases: 2 / 8 yrs
License: MIT + file LICENSE OSI
Download size: 139 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("hedgehog")

Format

Campbell, H. (2025). hedgehog: Property-Based Testing (Version 0.2) [Computer software]. https://doi.org/10.32614/CRAN.package.hedgehog

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for hedgehog version 0.2 [Data set]. HJJB, LLC. Data release v2026-10-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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