fuzzr

0.2.2

Fuzz-Test R Functions

1packages depend

2.9Kdownloads / year

96.8%test coverage

12/13checks pass

Overview

About

Maintained by Matthew LincolnFirst published 2016-06-274 releasesCRAN page ↗GitHub ↗

Test function arguments with a wide array of inputs, and produce reports summarizing messages, warnings, errors, and returned values.

Install

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

install.packages("fuzzr", 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("mdlincoln/fuzzr")

Development version from mdlincoln/fuzzr. 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-fuzzr

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

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-fuzzr

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-fuzzr

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

1NOTE12OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-gcc

Slowest check: 1.3 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.26

96.8%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-04-25
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-03-10
11 OK · 3 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 575 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 33%
References docs: 0%

Downloads

2.9K

CRAN downloads in the past year

Rank #18,780 · ~8/day · ~242/mo

Releases R versions

Daily download trend is not available in this view yet.

18330 days

58190 days

2.9K1 year

Compare downloads with other packages →

Also on97 r2u3 autocran

Repository

GitHub ↗ mdlincoln/fuzzr

23Stars

2Forks

1Open issues

1Open PRs

4Releases

126Commits

1Contributors

fuzz-testingr

126 commits · Last activity 2018-05-08 · 0% stars, 30d

Stars over time

2024-09-14 · 222026-07-07 · 23

Repository practices

Upstream repositoryBeta

5 development-tooling and community-health practices detected across 4 families in the upstream repository

Checks run against github.com/mdlincoln/fuzzr on 2026-08-02.

Continuous integration (2)

Travis CIAppVeyor

CRAN release process (1)

cran-comments.md

Docs source (1)

README.Rmd

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

6 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (3)

assertthat progress purrr

LinkingTo (0)

none

Suggests (3)

knitr rmarkdown testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

date4ts

Code & Tests

People & History

People (1)

Maintainer (1)

Matthew Lincoln

Author, Maintainer

Authors (1)

Matthew Lincoln

Author, Maintainer

Package Timeline

4 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
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
0.2.2Latest
2018-05-08 · current release · diff ↗
R
R 3.5.0 released · 2018-04-23
0.2.1
2017-05-01 · diff ↗
R
R 3.4.0 released · 2017-04-21
0.2.0
2016-12-30 · diff ↗
0.1.0
2016-06-27
R
R 3.3.0 released · 2016-05-03

Package metadata

First published: 2016-06-27
Total releases: 4 / 10 yrs
License: MIT + file LICENSE OSI
Download size: 21 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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