feat: extract SectionManager component with comprehensive TDD
Successfully extracted SectionManager from monolithic editor.js using TDD approach.
Component Extraction:
- Created modular directory structure: markitect/static/js/{core,components,utils,tests}/
- Extracted SectionManager class (490 lines) to core/section-manager.js
- Included Section class and dependencies (EditState, SectionType)
- Preserved all functionality: section creation, editing, events, status
TDD Implementation:
- Built RefactorTestRunner for component extraction testing
- Created comprehensive test suite (12 tests, all passing)
- Verified behavioral compatibility with original monolithic component
- Fixed subtle bug in getDocumentStatus (isEditing vs isEditing())
Key Features Preserved:
✅ Section creation from markdown (with sophisticated ID generation)
✅ Editing state management (start, update, accept, cancel, reset)
✅ Event system (on/emit) for section lifecycle events
✅ Document status tracking and section collection management
✅ Section splitting functionality for dynamic content changes
Architecture Benefits:
- Clean separation of concerns (490 lines vs 5,188-line monolith)
- Independent testability without DOM dependencies
- Reusable component for different UI frameworks
- Clear API surface with comprehensive test coverage
Next: Extract DOMRenderer and other UI components using same TDD approach.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
216
markitect/static/js/tests/refactor-test-runner.js
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216
markitect/static/js/tests/refactor-test-runner.js
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@@ -0,0 +1,216 @@
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#!/usr/bin/env node
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/**
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* TDD Test Runner for JavaScript Refactoring
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*
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* Drives component extraction and testing during architecture refactoring.
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* Ensures all functionality remains stable while achieving separation of concerns.
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*/
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class RefactorTestRunner {
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constructor() {
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this.tests = [];
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this.passed = 0;
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this.failed = 0;
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this.currentSuite = null;
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this.setupDOM();
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}
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setupDOM() {
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// Set up minimal DOM environment for testing
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if (typeof document === 'undefined') {
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const { JSDOM } = require('jsdom');
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const dom = new JSDOM('<!DOCTYPE html><html><body></body></html>', {
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url: 'http://localhost',
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pretendToBeVisual: true,
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resources: 'usable'
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});
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global.window = dom.window;
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global.document = dom.window.document;
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global.HTMLElement = dom.window.HTMLElement;
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global.Event = dom.window.Event;
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global.CustomEvent = dom.window.CustomEvent;
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// Only set navigator if it doesn't exist
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if (typeof global.navigator === 'undefined') {
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global.navigator = dom.window.navigator;
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}
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}
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}
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describe(suiteName, fn) {
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console.log(`\n📁 ${suiteName}`);
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this.currentSuite = suiteName;
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fn();
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this.currentSuite = null;
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}
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it(testName, fn) {
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const fullName = this.currentSuite ? `${this.currentSuite}: ${testName}` : testName;
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try {
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fn();
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console.log(` ✅ ${testName}`);
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this.passed++;
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} catch (error) {
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console.log(` ❌ ${testName}`);
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console.log(` Error: ${error.message}`);
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if (error.stack) {
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console.log(` Stack: ${error.stack.split('\n')[1]?.trim()}`);
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}
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this.failed++;
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}
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}
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expect(actual) {
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return {
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toBe: (expected) => {
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if (actual !== expected) {
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throw new Error(`Expected ${expected}, got ${actual}`);
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}
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},
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toBeTruthy: () => {
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if (!actual) {
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throw new Error(`Expected truthy value, got ${actual}`);
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}
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},
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toBeFalsy: () => {
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if (actual) {
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throw new Error(`Expected falsy value, got ${actual}`);
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}
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},
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toEqual: (expected) => {
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if (JSON.stringify(actual) !== JSON.stringify(expected)) {
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throw new Error(`Expected ${JSON.stringify(expected)}, got ${JSON.stringify(actual)}`);
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}
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},
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toContain: (expected) => {
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if (!actual.includes(expected)) {
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throw new Error(`Expected ${actual} to contain ${expected}`);
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}
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},
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toHaveProperty: (property) => {
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if (!(property in actual)) {
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throw new Error(`Expected object to have property ${property}`);
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}
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},
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toBeInstanceOf: (expectedClass) => {
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if (!(actual instanceof expectedClass)) {
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throw new Error(`Expected instance of ${expectedClass.name}, got ${actual.constructor.name}`);
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}
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}
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};
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}
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/**
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* Test that a component can be extracted from the monolith without breaking functionality
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*/
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testComponentExtraction(componentName, extractFn, originalTests) {
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this.describe(`Component Extraction: ${componentName}`, () => {
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this.it('should extract without syntax errors', () => {
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try {
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const component = extractFn();
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this.expect(component).toBeTruthy();
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} catch (error) {
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throw new Error(`Component extraction failed: ${error.message}`);
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}
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});
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this.it('should maintain original API', () => {
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const component = extractFn();
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originalTests.forEach(test => {
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try {
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test(component);
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} catch (error) {
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throw new Error(`API compatibility test failed: ${error.message}`);
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}
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});
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});
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});
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}
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/**
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* Test component integration after extraction
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*/
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testComponentIntegration(components, integrationTests) {
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this.describe('Component Integration', () => {
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integrationTests.forEach((test, index) => {
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this.it(`integration test ${index + 1}`, () => {
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test(components);
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});
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});
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});
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}
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/**
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* Setup test environment with mock dependencies
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*/
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setupTestEnvironment() {
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// Create test container
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const container = document.createElement('div');
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container.id = 'test-container';
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container.innerHTML = '<div id="markdown-content"></div>';
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document.body.appendChild(container);
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// Mock any global dependencies
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global.mockSectionManager = {
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sections: new Map(),
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createSectionsFromMarkdown: () => [],
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startEditing: () => true,
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stopEditing: () => true,
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getAllSections: () => []
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};
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return { container };
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}
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/**
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* Cleanup test environment
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*/
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cleanupTestEnvironment() {
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const container = document.getElementById('test-container');
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if (container) {
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container.remove();
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}
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// Clear any global mocks
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delete global.mockSectionManager;
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}
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async run() {
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console.log('🧪 TDD Refactoring Test Runner Starting...\n');
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const startTime = Date.now();
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// Run all collected tests
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// Tests will be added by importing component test files
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const endTime = Date.now();
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const duration = endTime - startTime;
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console.log(`\n📊 Test Results:`);
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console.log(` ✅ Passed: ${this.passed}`);
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console.log(` ❌ Failed: ${this.failed}`);
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console.log(` ⏱️ Duration: ${duration}ms`);
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if (this.failed > 0) {
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console.log(`\n❌ ${this.failed} test(s) failed. Refactoring should not proceed.`);
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process.exit(1);
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} else {
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console.log(`\n✅ All tests passed! Refactoring is safe to continue.`);
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}
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}
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}
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// Export for use in component tests
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if (typeof module !== 'undefined' && module.exports) {
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module.exports = { RefactorTestRunner };
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}
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// Export for browser use
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if (typeof window !== 'undefined') {
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window.RefactorTestRunner = RefactorTestRunner;
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}
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module.exports = RefactorTestRunner;
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226
markitect/static/js/tests/test-extracted-section-manager.js
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226
markitect/static/js/tests/test-extracted-section-manager.js
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@@ -0,0 +1,226 @@
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#!/usr/bin/env node
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/**
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* TDD Test for Extracted SectionManager Component
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*
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* Tests the extracted SectionManager component independently from the monolith.
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* Verifies that all functionality is preserved after extraction.
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*/
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const RefactorTestRunner = require('./refactor-test-runner.js');
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const runner = new RefactorTestRunner();
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runner.describe('Extracted SectionManager Component', () => {
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runner.it('should load extracted SectionManager component', () => {
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// Load the extracted component
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delete require.cache[require.resolve('../core/section-manager.js')];
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try {
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const module = require('../core/section-manager.js');
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runner.expect(module.SectionManager).toBeTruthy();
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runner.expect(module.Section).toBeTruthy();
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runner.expect(module.EditState).toBeTruthy();
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runner.expect(module.SectionType).toBeTruthy();
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// Set globals for other tests
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global.ExtractedSectionManager = module.SectionManager;
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global.ExtractedSection = module.Section;
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global.ExtractedEditState = module.EditState;
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global.ExtractedSectionType = module.SectionType;
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} catch (error) {
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throw new Error(`Failed to load extracted SectionManager: ${error.message}`);
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}
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});
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runner.it('should preserve constructor functionality', () => {
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const SectionManager = global.ExtractedSectionManager;
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const manager = new SectionManager();
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runner.expect(manager).toBeInstanceOf(SectionManager);
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runner.expect(manager.sections).toBeInstanceOf(Map);
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runner.expect(manager.listeners).toBeInstanceOf(Map);
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});
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runner.it('should preserve section creation functionality', () => {
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const SectionManager = global.ExtractedSectionManager;
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const manager = new SectionManager();
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const testMarkdown = `# Heading 1\nContent 1\n\n## Heading 2\nContent 2`;
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const sections = manager.createSectionsFromMarkdown(testMarkdown);
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runner.expect(Array.isArray(sections)).toBeTruthy();
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runner.expect(sections.length).toBe(2);
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runner.expect(sections[0].currentMarkdown).toContain('Heading 1');
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runner.expect(sections[1].currentMarkdown).toContain('Heading 2');
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});
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runner.it('should preserve section editing functionality', () => {
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const SectionManager = global.ExtractedSectionManager;
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const manager = new SectionManager();
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const sections = manager.createSectionsFromMarkdown('# Test\nContent');
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const sectionId = sections[0].id;
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// Test start editing
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const content = manager.startEditing(sectionId);
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runner.expect(content).toContain('Test');
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const section = manager.sections.get(sectionId);
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runner.expect(section.isEditing()).toBeTruthy();
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// Test stop editing
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section.stopEditing();
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runner.expect(section.isEditing()).toBeFalsy();
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});
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runner.it('should preserve event system functionality', () => {
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const SectionManager = global.ExtractedSectionManager;
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const manager = new SectionManager();
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let eventFired = false;
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let eventData = null;
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manager.on('test-event', (data) => {
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eventFired = true;
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eventData = data;
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});
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manager.emit('test-event', { test: 'data' });
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runner.expect(eventFired).toBeTruthy();
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runner.expect(eventData).toEqual({ test: 'data' });
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});
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runner.it('should preserve document status functionality', () => {
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const SectionManager = global.ExtractedSectionManager;
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const manager = new SectionManager();
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manager.createSectionsFromMarkdown('# Test\nContent');
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const status = manager.getDocumentStatus();
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runner.expect(status).toHaveProperty('totalSections');
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runner.expect(status).toHaveProperty('editingSections');
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runner.expect(status.totalSections).toBe(1);
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});
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runner.it('should preserve getAllSections functionality', () => {
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const SectionManager = global.ExtractedSectionManager;
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const manager = new SectionManager();
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const testMarkdown = '# One\nContent\n\n# Two\nMore content';
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manager.createSectionsFromMarkdown(testMarkdown);
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const allSections = manager.getAllSections();
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runner.expect(Array.isArray(allSections)).toBeTruthy();
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runner.expect(allSections.length).toBe(2);
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});
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runner.it('should preserve section splitting functionality', () => {
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const SectionManager = global.ExtractedSectionManager;
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const manager = new SectionManager();
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const sections = manager.createSectionsFromMarkdown('# Original\nContent');
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const sectionId = sections[0].id;
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const newContent = '# Split 1\nContent 1\n\n# Split 2\nContent 2';
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const newSections = manager.handleSectionSplit(sectionId, newContent);
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runner.expect(Array.isArray(newSections)).toBeTruthy();
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runner.expect(newSections.length).toBe(2);
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runner.expect(manager.sections.has(sectionId)).toBeFalsy(); // Original removed
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});
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runner.it('should preserve Section class functionality', () => {
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const Section = global.ExtractedSection;
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const EditState = global.ExtractedEditState;
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const section = new Section('test-id', '# Test Content', 'heading');
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runner.expect(section.id).toBe('test-id');
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runner.expect(section.currentMarkdown).toBe('# Test Content');
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runner.expect(section.type).toBe('heading');
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runner.expect(section.state).toBe(EditState.ORIGINAL);
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});
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runner.it('should preserve Section ID generation', () => {
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const Section = global.ExtractedSection;
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const id1 = Section.generateId('# Test Heading', 0);
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const id2 = Section.generateId('# Different Heading', 1);
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runner.expect(typeof id1 === 'string').toBeTruthy();
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runner.expect(typeof id2 === 'string').toBeTruthy();
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runner.expect(id1).toContain('section-');
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runner.expect(id2).toContain('section-');
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runner.expect(id1 !== id2).toBeTruthy(); // Should be unique
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});
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runner.it('should preserve Section type detection', () => {
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const Section = global.ExtractedSection;
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const SectionType = global.ExtractedSectionType;
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runner.expect(Section.detectType('# Heading')).toBe(SectionType.HEADING);
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runner.expect(Section.detectType('')).toBe(SectionType.IMAGE);
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runner.expect(Section.detectType('```code```')).toBe(SectionType.CODE);
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runner.expect(Section.detectType('Regular paragraph')).toBe(SectionType.PARAGRAPH);
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});
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|
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// Comparative test - verify extracted component behaves identically to original
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runner.it('should behave identically to original monolithic component', () => {
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// Load both components
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const originalModule = require('/home/worsch/markitect_project/markitect/static/editor.js');
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const extractedModule = require('../core/section-manager.js');
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const originalManager = new originalModule.SectionManager();
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const extractedManager = new extractedModule.SectionManager();
|
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|
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const testMarkdown = '# Test\nContent\n\n## Subheading\nMore content';
|
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|
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// Debug: Check what each component produces
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console.log('Creating sections with original component...');
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const originalSections = originalManager.createSectionsFromMarkdown(testMarkdown);
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console.log(`Original produced ${originalSections.length} sections`);
|
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|
||||
console.log('Creating sections with extracted component...');
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const extractedSections = extractedManager.createSectionsFromMarkdown(testMarkdown);
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console.log(`Extracted produced ${extractedSections.length} sections`);
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|
||||
if (originalSections.length > 0) {
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console.log('Original first section:', originalSections[0].currentMarkdown);
|
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}
|
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if (extractedSections.length > 0) {
|
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console.log('Extracted first section:', extractedSections[0].currentMarkdown);
|
||||
}
|
||||
|
||||
// Should have same number of sections
|
||||
runner.expect(extractedSections.length).toBe(originalSections.length);
|
||||
|
||||
// Should have same content
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for (let i = 0; i < originalSections.length; i++) {
|
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runner.expect(extractedSections[i].currentMarkdown).toBe(originalSections[i].currentMarkdown);
|
||||
runner.expect(extractedSections[i].type).toBe(originalSections[i].type);
|
||||
}
|
||||
|
||||
// Should have same document status structure
|
||||
const originalStatus = originalManager.getDocumentStatus();
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||||
const extractedStatus = extractedManager.getDocumentStatus();
|
||||
|
||||
console.log('Original status:', originalStatus);
|
||||
console.log('Extracted status:', extractedStatus);
|
||||
|
||||
runner.expect(extractedStatus.totalSections).toBe(originalStatus.totalSections);
|
||||
runner.expect(extractedStatus.editingSections).toBe(originalStatus.editingSections);
|
||||
});
|
||||
});
|
||||
|
||||
module.exports = runner;
|
||||
|
||||
// Run tests if called directly
|
||||
if (require.main === module) {
|
||||
console.log('🧪 Testing Extracted SectionManager Component');
|
||||
runner.run().then(() => {
|
||||
console.log('✅ Extracted SectionManager tests completed');
|
||||
});
|
||||
}
|
||||
196
markitect/static/js/tests/test-section-manager-extraction.js
Normal file
196
markitect/static/js/tests/test-section-manager-extraction.js
Normal file
@@ -0,0 +1,196 @@
|
||||
#!/usr/bin/env node
|
||||
|
||||
/**
|
||||
* TDD Test for SectionManager Component Extraction
|
||||
*
|
||||
* Tests the extraction of SectionManager from the monolithic editor.js
|
||||
* Ensures all functionality is preserved during refactoring.
|
||||
*/
|
||||
|
||||
const RefactorTestRunner = require('./refactor-test-runner.js');
|
||||
|
||||
const runner = new RefactorTestRunner();
|
||||
|
||||
// First, let's define what the SectionManager API should look like
|
||||
const EXPECTED_SECTION_MANAGER_API = [
|
||||
'constructor',
|
||||
'createSectionsFromMarkdown',
|
||||
'startEditing',
|
||||
'stopEditing',
|
||||
'getAllSections',
|
||||
'sections', // Map property, not method
|
||||
'getDocumentStatus',
|
||||
'getDocumentMarkdown',
|
||||
'on', // event system
|
||||
'emit', // event system
|
||||
'handleSectionSplit',
|
||||
'updateContent',
|
||||
'acceptChanges',
|
||||
'cancelChanges',
|
||||
'resetSection'
|
||||
];
|
||||
|
||||
runner.describe('SectionManager Component Extraction', () => {
|
||||
|
||||
runner.it('should define expected API methods', () => {
|
||||
// This test defines what we expect from the extracted SectionManager
|
||||
const expectedMethods = EXPECTED_SECTION_MANAGER_API;
|
||||
runner.expect(expectedMethods.length).toBe(15);
|
||||
runner.expect(expectedMethods).toContain('createSectionsFromMarkdown');
|
||||
runner.expect(expectedMethods).toContain('startEditing');
|
||||
runner.expect(expectedMethods).toContain('stopEditing');
|
||||
});
|
||||
|
||||
runner.it('should extract from monolithic editor.js', () => {
|
||||
// Load the monolithic editor.js to extract SectionManager
|
||||
delete require.cache[require.resolve('/home/worsch/markitect_project/markitect/static/editor.js')];
|
||||
|
||||
try {
|
||||
const editorModule = require('/home/worsch/markitect_project/markitect/static/editor.js');
|
||||
runner.expect(editorModule.SectionManager).toBeTruthy();
|
||||
// Set global for other tests
|
||||
global.SectionManager = editorModule.SectionManager;
|
||||
global.Section = editorModule.Section;
|
||||
global.EditState = editorModule.EditState;
|
||||
} catch (error) {
|
||||
throw new Error(`Failed to load monolithic editor.js: ${error.message}`);
|
||||
}
|
||||
});
|
||||
|
||||
runner.it('should preserve SectionManager constructor functionality', () => {
|
||||
const SectionManager = global.SectionManager;
|
||||
|
||||
const manager = new SectionManager();
|
||||
runner.expect(manager).toBeInstanceOf(SectionManager);
|
||||
runner.expect(manager.sections).toBeInstanceOf(Map);
|
||||
});
|
||||
|
||||
runner.it('should preserve createSectionsFromMarkdown functionality', () => {
|
||||
const SectionManager = global.SectionManager;
|
||||
const manager = new SectionManager();
|
||||
|
||||
const testMarkdown = `# Heading 1\nContent 1\n\n## Heading 2\nContent 2`;
|
||||
const sections = manager.createSectionsFromMarkdown(testMarkdown);
|
||||
|
||||
runner.expect(Array.isArray(sections)).toBeTruthy();
|
||||
runner.expect(sections.length).toBe(2);
|
||||
runner.expect(sections[0].currentMarkdown).toContain('Heading 1');
|
||||
runner.expect(sections[1].currentMarkdown).toContain('Heading 2');
|
||||
});
|
||||
|
||||
runner.it('should preserve section editing state management', () => {
|
||||
const SectionManager = global.SectionManager;
|
||||
const manager = new SectionManager();
|
||||
|
||||
const sections = manager.createSectionsFromMarkdown('# Test\nContent');
|
||||
const sectionId = sections[0].id;
|
||||
|
||||
// Test start editing
|
||||
runner.expect(manager.startEditing(sectionId)).toBeTruthy();
|
||||
const section = manager.sections.get(sectionId);
|
||||
runner.expect(section.isEditing()).toBeTruthy();
|
||||
|
||||
// Test stop editing
|
||||
section.stopEditing();
|
||||
runner.expect(section.isEditing()).toBeFalsy();
|
||||
});
|
||||
|
||||
runner.it('should preserve event system functionality', () => {
|
||||
const SectionManager = global.SectionManager;
|
||||
const manager = new SectionManager();
|
||||
|
||||
let eventFired = false;
|
||||
let eventData = null;
|
||||
|
||||
manager.on('test-event', (data) => {
|
||||
eventFired = true;
|
||||
eventData = data;
|
||||
});
|
||||
|
||||
manager.emit('test-event', { test: 'data' });
|
||||
|
||||
runner.expect(eventFired).toBeTruthy();
|
||||
runner.expect(eventData).toEqual({ test: 'data' });
|
||||
});
|
||||
|
||||
runner.it('should preserve document status functionality', () => {
|
||||
const SectionManager = global.SectionManager;
|
||||
const manager = new SectionManager();
|
||||
|
||||
manager.createSectionsFromMarkdown('# Test\nContent');
|
||||
const status = manager.getDocumentStatus();
|
||||
|
||||
runner.expect(status).toHaveProperty('totalSections');
|
||||
runner.expect(status).toHaveProperty('editingSections');
|
||||
runner.expect(status.totalSections).toBe(1);
|
||||
});
|
||||
|
||||
runner.it('should preserve getAllSections functionality', () => {
|
||||
const SectionManager = global.SectionManager;
|
||||
const manager = new SectionManager();
|
||||
|
||||
const testMarkdown = '# One\nContent\n\n# Two\nMore content';
|
||||
manager.createSectionsFromMarkdown(testMarkdown);
|
||||
|
||||
const allSections = manager.getAllSections();
|
||||
runner.expect(Array.isArray(allSections)).toBeTruthy();
|
||||
runner.expect(allSections.length).toBe(2);
|
||||
});
|
||||
|
||||
runner.it('should preserve section splitting functionality', () => {
|
||||
const SectionManager = global.SectionManager;
|
||||
const manager = new SectionManager();
|
||||
|
||||
const sections = manager.createSectionsFromMarkdown('# Original\nContent');
|
||||
const sectionId = sections[0].id;
|
||||
|
||||
const newContent = '# Split 1\nContent 1\n\n# Split 2\nContent 2';
|
||||
const newSections = manager.handleSectionSplit(sectionId, newContent);
|
||||
|
||||
runner.expect(Array.isArray(newSections)).toBeTruthy();
|
||||
runner.expect(newSections.length).toBe(2);
|
||||
runner.expect(manager.sections.has(sectionId)).toBeFalsy(); // Original removed
|
||||
});
|
||||
});
|
||||
|
||||
// Export API tests for use during extraction
|
||||
const SECTION_MANAGER_API_TESTS = [
|
||||
(SectionManager) => {
|
||||
const manager = new SectionManager();
|
||||
if (!manager.sections || !(manager.sections instanceof Map)) {
|
||||
throw new Error('sections property missing or not a Map');
|
||||
}
|
||||
},
|
||||
(SectionManager) => {
|
||||
const manager = new SectionManager();
|
||||
if (typeof manager.createSectionsFromMarkdown !== 'function') {
|
||||
throw new Error('createSectionsFromMarkdown method missing');
|
||||
}
|
||||
},
|
||||
(SectionManager) => {
|
||||
const manager = new SectionManager();
|
||||
if (typeof manager.startEditing !== 'function') {
|
||||
throw new Error('startEditing method missing');
|
||||
}
|
||||
},
|
||||
(SectionManager) => {
|
||||
const manager = new SectionManager();
|
||||
if (typeof manager.stopEditing !== 'function') {
|
||||
throw new Error('stopEditing method missing');
|
||||
}
|
||||
}
|
||||
];
|
||||
|
||||
module.exports = {
|
||||
runner,
|
||||
EXPECTED_SECTION_MANAGER_API,
|
||||
SECTION_MANAGER_API_TESTS
|
||||
};
|
||||
|
||||
// Run tests if called directly
|
||||
if (require.main === module) {
|
||||
console.log('🧪 Testing SectionManager Component Extraction');
|
||||
runner.run().then(() => {
|
||||
console.log('✅ SectionManager extraction tests completed');
|
||||
});
|
||||
}
|
||||
Reference in New Issue
Block a user