improve-test-coverage

Audits rshell's existing tests and generates new YAML scenario tests to improve coverage gaps identified from reference suites.

31|3|Updated Mar 8, 2026
One-click install
npx skills add https://github.com/DataDog/rshell --skill improve-test-coverage
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: improve-test-coverage
Source: https://github.com/DataDog/rshell/tree/main/.claude/skills/improve-test-coverage
Command: npx skills add https://github.com/DataDog/rshell --skill improve-test-coverage

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill addresses the need for more robust testing in the rshell project by identifying and filling gaps in existing test coverage for shell features and commands.

Core Features & Use Cases

  • Comprehensive Test Auditing: Analyzes existing tests against reference suites (yash, GNU coreutils, uutils/coreutils) to pinpoint missing scenarios.
  • Gap Identification: Pinpoints untested flags, edge cases, error conditions, and flag combinations.
  • Automated Test Generation: Creates new scenario tests in YAML format to cover identified gaps.
  • Test Suite Maintenance: Cleans up duplicate tests, reviews skip_assert_against_bash flags, and refines Windows-specific assertions.
  • Use Case: Ensure that every implemented command and shell feature in rshell is thoroughly tested against a wide range of inputs and conditions, leading to a more stable and reliable interpreter.

Quick Start

Use the improve-test-coverage skill to enhance test coverage for all shell features and commands.

Frequently Asked Questions about improve-test-coverage

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I improve test coverage for a restricted shell interpreter?

To improve test coverage for a restricted shell interpreter, you can audit existing tests against external reference suites like yash, GNU coreutils, and uutils/coreutils to identify untested flags, edge cases, and error conditions, then generate new scenario tests to fill those gaps.

What is the best way to find missing test scenarios for shell commands?

Finding missing test scenarios for shell commands involves analyzing your existing test suite against reference implementations like yash and GNU coreutils to pinpoint untested flag combinations and error conditions, ensuring comprehensive validation of command-line utilities.

How do I generate automated tests for untested shell language features?

Generating automated tests for untested shell language features requires identifying coverage deficiencies by auditing external test suites, then automatically creating new scenario tests in YAML format to validate the restricted shell interpreter.

Does improving shell test coverage require comparing against GNU coreutils test suites?

Yes, improving shell test coverage often requires comparing against GNU coreutils, uutils/coreutils, and yash test suites to effectively audit existing tests, identify missing scenarios, and rectify coverage deficiencies for command-line utilities.

How do I clean up duplicate tests and review skip assertions for shell utilities?

Cleaning up duplicate tests and reviewing skip assertions for shell utilities involves maintaining the test suite by removing redundant scenarios, evaluating skip_assert_against_bash flags, and refining Windows-specific assertions to ensure test stability.