test-fixing

ljchg12-hue's avatarfrom ljchg12-hue

Automatically diagnose and fix failing tests by analyzing errors, updating assertions, and refactoring test code

⭐0stars🔀0forks📁View on GitHub🕐Updated Jan 6, 2026
[Testing and QA]

When & Why to Use This Skill

This Claude skill automates the diagnosis and repair of failing test suites by analyzing error logs, updating assertions, and refactoring code. It streamlines the software testing process by identifying root causes of failures, fixing flaky tests, and ensuring CI/CD pipelines remain green with minimal manual intervention, significantly reducing the technical debt associated with test maintenance.

Use Cases

  • CI/CD Pipeline Recovery: Automatically diagnose and fix test failures that block deployment pipelines, reducing the time developers spend on build maintenance.
  • Flaky Test Mitigation: Identify and resolve non-deterministic test failures caused by race conditions, improper async/await patterns, or tight timeouts.
  • Regression Test Maintenance: Update outdated assertions and test data automatically when API responses or business logic change during refactoring.
  • Mock and Stub Repair: Fix broken mocks and dependency injections following library upgrades or internal architectural changes.
nametest-fixing
descriptionAutomatically diagnose and fix failing tests by analyzing errors, updating assertions, and refactoring test code

Test Fixing Skill

Diagnose and fix failing tests automatically using error analysis and intelligent refactoring.

When to Use

  • Failing test suite
  • Flaky tests
  • Test maintenance
  • CI/CD pipeline failures

Core Capabilities

  • Error analysis and root cause identification
  • Assertion updates
  • Mock/stub fixing
  • Timeout adjustments
  • Race condition detection
  • Test data refresh
  • Dependency updates

Common Fixes

// Fix 1: Update assertion
- expect(result).toBe(5);
+ expect(result).toBe(6); // Updated expected value

// Fix 2: Add async/await
- it('should fetch data', () => {
-   const data = fetchData();
+ it('should fetch data', async () => {
+   const data = await fetchData();

// Fix 3: Fix mock
- jest.mock('./api');
+ jest.mock('./api', () => ({
+   fetchUser: jest.fn().mockResolvedValue({ id: 1 })
+ }));

// Fix 4: Increase timeout
- it('slow test', () => {
+ it('slow test', () => {
+   jest.setTimeout(10000);

Best Practices

  • Analyze error messages first
  • Check for environmental issues
  • Update test data regularly
  • Fix flaky tests immediately
  • Run tests in isolation

Resources