Back to Repositories

Validating Documentation Generation Workflow in GatsbyJS

This test suite validates the documentation generation functionality for WordPress plugin options in Gatsby. It ensures that plugin options documentation is properly generated and matches expected output through automated verification.

Test Coverage Overview

The test suite focuses on validating the documentation generation process for Gatsby WordPress plugin options.

Key areas covered include:

File content verification for plugin-options.md
Generation of markdown string content
Content matching between generated and expected documentation

Implementation Analysis

The testing approach utilizes Jest’s asynchronous testing capabilities to verify documentation generation. The implementation employs file system operations through fs-extra and path resolution to access and compare documentation files.

Testing patterns include:

Async/await pattern for file operations
Direct content comparison using Jest matchers
File path resolution using Node.js path module

Technical Details

Testing tools and configuration:

Jest test framework
fs-extra for file system operations
Path module for file path handling
UTF-8 encoding for file reading
Custom utility function getPluginOptionsMdString

Best Practices Demonstrated

The test suite demonstrates several testing best practices for documentation verification.

Notable practices include:

Isolation of documentation generation logic
Explicit file encoding specification
Multiple assertion points for comprehensive validation
Clear test case description
Proper error handling for file operations

gatsbyjs/gatsby

packages/gatsby-source-wordpress/__tests__/docs-generation.test.js

            
import { getPluginOptionsMdString } from "../generate-plugin-options-docs"
import fs from "fs-extra"
import path from "path"

describe(`Plugin options docs`, () => {
  test(`Docs have been generated by running "yarn build" or "yarn generate-plugin-options-docs"`, async () => {
    const generatedDocsFileContents = await fs.readFile(
      path.join(__dirname, `../docs/plugin-options.md`),
      `utf-8`
    )

    const mdString = await getPluginOptionsMdString()

    expect(generatedDocsFileContents).toBeTruthy()
    expect(mdString).toBeTruthy()

    expect(generatedDocsFileContents).toEqual(mdString)
  })
})