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Expand Unit Tests

BeginnerFree2 minupdated 2026-10-21

Barra de vidro inclinada, como uma barra de comando, sobre uma base de metal com pequenas teclas de vidro.

Details

nameunit-test-expand
descriptionIncrease test coverage by targeting untested branches and edge cases

Expand existing unit tests adapted to project's testing framework:

  1. Analyze coverage: Run coverage report to identify untested branches, edge cases, and low-coverage areas
  2. Identify gaps: Review code for logical branches, error paths, boundary conditions, null/empty inputs
  3. Write tests using project's framework:
  • Jest/Vitest/Mocha (JavaScript/TypeScript)
  • pytest/unittest (Python)
  • Go testing/testify (Go)
  • Rust test framework (Rust)
  1. Target specific scenarios:
  • Error handling and exceptions
  • Boundary values (min/max, empty, null)
  • Edge cases and corner cases
  • State transitions and side effects
  1. Verify improvement: Run coverage again, confirm measurable increase

Present new test code blocks only. Follow existing test patterns and naming conventions.

Last Updated: August 4, 2026

Claude Code Version: 2.1.220

Sources:

  • https://code.claude.com/docs/en/commands

Compatible Models: Claude Fable 5, Claude Opus 5, Claude Sonnet 5, Claude Sonnet 4.6, Claude Opus 4.8, Claude Haiku 4.5

Components for this task

We hand-picked the agents, skills and commands that handle this kind of work: Agents, skills and commands for automated testing.

Open-source community guide (MIT) · curated and maintained by Doutor AI.

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