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Better Code Generation

Code Assistant Evaluation & Testing

Validate generated code for correctness, security, and best practices. Catch bugs before they're committed.

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How PromptLens Helps

Correctness Testing

Run generated code against test suites. Verify it produces expected outputs across edge cases.

Security Scanning

Check generated code for vulnerabilities. Catch SQL injection, XSS, and other security issues.

Style Compliance

Ensure code follows your team's conventions. Test for linting rules and formatting standards.

Multi-Language Support

Test code generation across Python, JavaScript, TypeScript, Go, and more.

Key Features

  • Automated code execution
  • Security vulnerability scanning
  • Linting integration
  • Multi-language support
  • Diff visualization

Why It Matters

34%

of AI-generated code contains at least one bug when tested against comprehensive test suites

GitClear, 2025

4.2x

faster code review when AI-generated code is pre-validated against automated quality checks

Google DevOps Research (DORA)

15%

of AI-generated code introduces security vulnerabilities not present in the original codebase

Snyk AI Code Security Report, 2025

Testing AI Code Generation at Scale

AI code assistants generate millions of lines of code daily. Without systematic testing, bugs and security issues slip into production. 1. **Functional correctness** — Write test cases with specific inputs and expected outputs. Run the generated code in a sandbox and validate results. This catches logical errors that look correct in review. 2. **Security scanning** — Automatically scan generated code for OWASP Top 10 vulnerabilities. Pay special attention to SQL injection, XSS, and hardcoded credentials — patterns that LLMs frequently reproduce from training data. 3. **Style consistency** — Test that generated code follows your team's conventions: naming patterns, error handling approach, import organization. Inconsistent style increases maintenance burden. 4. **Regression across models** — When you switch models or update prompts, re-run your full test suite. A model upgrade that improves Python generation might degrade TypeScript output.

Example: Code generation test case

// Validate generated code quality
{
  prompt: "Write a function to validate email",
  tests: [
    { input: "user@example.com", expected: true },
    { input: "invalid-email", expected: false },
    { input: "a@b.c", expected: false },
  ],
  security_checks: [
    "no_eval_usage",
    "no_regex_dos",
    "input_sanitization"
  ]
}

Better Code Generation

Set up your first regression test in minutes. Catch issues before they reach your users.

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