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DocuWriter.ai

Generate AI-powered documentation and code analysis

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Overview

This node, named "DocuWriter.ai," is designed to generate AI-powered outputs related to source code analysis. Specifically for the Code Tests - Generate operation, it analyzes provided source code and automatically generates test cases. This can include unit tests or other types of tests, with configurable coverage levels and support for different testing frameworks.

Common scenarios where this node is beneficial include:

  • Automatically creating initial test suites for legacy or new codebases.
  • Accelerating test development by generating boilerplate or comprehensive test cases.
  • Supporting multiple programming languages and test frameworks through auto-detection or explicit selection.
  • Improving code quality assurance by ensuring various coverage levels (basic to full).

Practical example: A developer wants to quickly generate unit tests for a JavaScript file using Jest. They provide the source code and filename, select Jest as the test framework, choose "unit tests" as the test type, and set coverage level to "comprehensive." The node returns generated test code that can be directly used or adapted.

Properties

Name Meaning
Source Code The actual source code text to analyze and generate tests from.
Filename The filename associated with the source code (e.g., code.js).
Test Framework The testing framework to use for generating tests. Examples: Jest, PHPUnit, JUnit, or "auto-detect".
Test Type The kind of tests to generate, e.g., "unit tests".
Coverage Level The depth of test coverage to generate. Options: Basic, Comprehensive, Full.

Output

The node outputs JSON data containing the generated test cases and related metadata returned from the external API. The structure typically includes the generated test code and possibly additional information about the tests created.

If the node supports binary output (not indicated here), it would represent test files or artifacts in binary form, but this implementation focuses on JSON textual output.

Dependencies

  • Requires an API key credential for authentication with the DocuWriter.ai service.
  • Makes HTTP POST requests to the /api/n8n/code-tests endpoint of the configured base URL.
  • The node depends on n8n's built-in HTTP request helper with authentication support.
  • No other external dependencies are required within the node itself.

Troubleshooting

  • Common issues:

    • Invalid or missing API credentials will cause authentication failures.
    • Providing malformed or unsupported source code may result in errors or incomplete test generation.
    • Selecting an unsupported test framework might lead to fallback behavior or errors.
    • Network connectivity problems can prevent successful API calls.
  • Error messages:

    • Errors returned from the API will be surfaced with their message; ensure the source code and parameters are valid.
    • If the node is set to continue on fail, errors for individual items will be included in the output JSON under an error field.
    • To resolve errors, verify API credentials, check source code validity, and confirm parameter correctness.

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