Write R package tests using testthat version 3 and above.
npx skills add https://github.com/bbtheo/cuplyr --skill testing-r-packages-bbtheo
Please help me install this Agent Skill. Skill: testing-r-packages Source: https://github.com/bbtheo/cuplyr/tree/main/.claude/skills/testing-r-packages Command: npx skills add https://github.com/bbtheo/cuplyr --skill testing-r-packages-bbtheo
This Skill provides comprehensive guidance on writing robust, maintainable, and efficient tests for R packages using the testthat package, ensuring code quality and reliability.
testthat 3+ patterns for test structure, organization, and execution.calculate_stats() correctly handles various inputs, edge cases, and potential errors. This Skill guides you in writing effective testthat tests to cover these scenarios.Use the testing-r-packages skill to set up a new R package test suite using testthat 3+.
High-intent search queries and answers about installing and using this skill.
Structure R package tests using testthat 3+ by organizing tests into self-sufficient blocks, applying modern patterns for expectations, and maintaining proper file hierarchy. This approach ensures robust and maintainable test suites for reliable R development.
The best way to handle cleanup in testthat tests is using the withr package to ensure proper teardown of modified environments. This guarantees self-sufficient tests that do not leak state across test cases in your R package.
Snapshot testing for R packages works by capturing the expected output of a function and comparing it against future test runs. This mechanism detects unexpected changes in console output, warnings, or plot rendering efficiently.
Yes, you can mock external dependencies in testthat to isolate the function under test. Mocking allows you to simulate external API responses or complex object behaviors, ensuring reliable and consistent test execution for your R package.
Use testthat fixtures in R development when you need to establish a consistent, reusable state across multiple tests. Fixtures help manage setup and teardown processes, ensuring each test runs under identical conditions reliably.
seabbsAutomate R package build, test, and documentation workflows with devtools, roxygen2, and testthat.
queeliusAudit R packages against CRAN Repository Policy and generate a structured gap report.
Zepeng-MuReview R package code for redundancy and roxygen2 documentation quality.
justanestaBuild R packages with tidyverse patterns and cli/rlang error handling.