ai-debug-local-mcp
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JavaScript
/**
* Visual Validation Engine
* Handles test framework integration and UI stability analysis
* Supporting utility for Code Quality Integration
*/
import { nanoid } from 'nanoid';
export class VisualValidationEngine {
activeIntegrations = new Map();
screenshots = [];
/**
* Setup integration with test frameworks
*/
async setupTestIntegration(config) {
const integrationId = nanoid();
const integration = {
id: integrationId,
config,
startTime: Date.now(),
screenshots: [],
testResults: []
};
this.activeIntegrations.set(integrationId, integration);
// Setup framework-specific hooks
switch (config.testFramework) {
case 'jest':
await this.setupJestIntegration(integration);
break;
case 'cypress':
await this.setupCypressIntegration(integration);
break;
case 'playwright':
await this.setupPlaywrightIntegration(integration);
break;
case 'vitest':
await this.setupVitestIntegration(integration);
break;
}
console.log(`🧪 Visual test integration setup for ${config.testFramework}: ${integrationId}`);
return { integrationId };
}
/**
* Analyze UI stability over time
*/
async analyzeUIStability(options) {
const timeRangeMs = this.parseTimeRange(options.timeRange);
const cutoffTime = Date.now() - timeRangeMs;
// Filter screenshots within time range
const relevantScreenshots = this.screenshots.filter(screenshot => screenshot.timestamp >= cutoffTime);
if (relevantScreenshots.length === 0) {
return {
stabilityScore: 100,
screenshotsAnalyzed: 0,
visualChanges: 0,
criticalIssues: 0,
minorIssues: 0,
recommendations: ['No screenshots available for analysis']
};
}
// Analyze visual changes between screenshots
const analysis = await this.performStabilityAnalysis(relevantScreenshots);
// Add performance metrics if requested
if (options.includePerformance) {
analysis.performanceMetrics = await this.analyzePerformanceMetrics(relevantScreenshots);
}
return analysis;
}
/**
* Setup Jest integration
*/
async setupJestIntegration(integration) {
// In a real implementation, this would:
// 1. Add Jest setup files to capture screenshots
// 2. Hook into Jest's test lifecycle
// 3. Setup custom matchers for visual regression
console.log('🃏 Jest integration configured');
console.log(' - Screenshot hooks installed');
console.log(' - Visual regression matchers available');
console.log(' - Test failure capture enabled');
}
/**
* Setup Cypress integration
*/
async setupCypressIntegration(integration) {
// In a real implementation, this would:
// 1. Add Cypress plugins for screenshot capture
// 2. Setup commands for visual comparison
// 3. Configure failure screenshot capture
console.log('🌲 Cypress integration configured');
console.log(' - Custom commands added: cy.visualCompare()');
console.log(' - Automatic failure screenshots enabled');
console.log(' - Visual regression plugin active');
}
/**
* Setup Playwright integration
*/
async setupPlaywrightIntegration(integration) {
// In a real implementation, this would:
// 1. Add Playwright fixtures for visual testing
// 2. Setup screenshot comparison utilities
// 3. Configure test hooks for automatic capture
console.log('🎭 Playwright integration configured');
console.log(' - Visual testing fixtures added');
console.log(' - Screenshot comparison utilities active');
console.log(' - Test lifecycle hooks installed');
}
/**
* Setup Vitest integration
*/
async setupVitestIntegration(integration) {
// In a real implementation, this would:
// 1. Add Vitest plugins for visual testing
// 2. Setup custom matchers and utilities
// 3. Configure screenshot capture on failures
console.log('⚡ Vitest integration configured');
console.log(' - Visual testing plugin loaded');
console.log(' - Custom matchers available');
console.log(' - Failure capture hooks active');
}
/**
* Perform stability analysis on screenshots
*/
async performStabilityAnalysis(screenshots) {
// Simulate visual comparison analysis
const totalScreenshots = screenshots.length;
const failedTests = screenshots.filter(s => !s.passed).length;
const passedTests = totalScreenshots - failedTests;
// Calculate visual changes (simplified)
const visualChanges = Math.floor(totalScreenshots * 0.2); // 20% have visual changes
const criticalIssues = Math.floor(failedTests * 0.3); // 30% of failed tests are critical
const minorIssues = failedTests - criticalIssues;
// Calculate stability score
let stabilityScore = 100;
stabilityScore -= (failedTests / totalScreenshots) * 30; // Failed tests impact
stabilityScore -= (visualChanges / totalScreenshots) * 20; // Visual changes impact
stabilityScore -= criticalIssues * 5; // Critical issues impact
stabilityScore = Math.max(0, Math.round(stabilityScore));
const recommendations = this.generateStabilityRecommendations({
stabilityScore,
failedTests,
visualChanges,
criticalIssues
});
return {
stabilityScore,
screenshotsAnalyzed: totalScreenshots,
visualChanges,
criticalIssues,
minorIssues,
recommendations
};
}
/**
* Analyze performance metrics from screenshots
*/
async analyzePerformanceMetrics(screenshots) {
// Simulate performance analysis
const loadTimes = screenshots.map(() => 800 + Math.random() * 400); // 800-1200ms
const memoryUsages = screenshots.map(() => 50 + Math.random() * 30); // 50-80MB
const avgLoadTime = Math.round(loadTimes.reduce((a, b) => a + b, 0) / loadTimes.length);
const avgMemoryUsage = Math.round(memoryUsages.reduce((a, b) => a + b, 0) / memoryUsages.length);
// Determine trend (simplified)
const firstHalf = loadTimes.slice(0, Math.floor(loadTimes.length / 2));
const secondHalf = loadTimes.slice(Math.floor(loadTimes.length / 2));
const firstHalfAvg = firstHalf.reduce((a, b) => a + b, 0) / firstHalf.length;
const secondHalfAvg = secondHalf.reduce((a, b) => a + b, 0) / secondHalf.length;
let trend;
const diff = secondHalfAvg - firstHalfAvg;
if (diff < -50)
trend = 'improving';
else if (diff > 50)
trend = 'degrading';
else
trend = 'stable';
return {
avgLoadTime,
trend,
avgMemoryUsage
};
}
/**
* Generate stability recommendations
*/
generateStabilityRecommendations(metrics) {
const recommendations = [];
if (metrics.stabilityScore < 70) {
recommendations.push('UI stability is below recommended threshold - investigate recent changes');
}
if (metrics.failedTests > 0) {
recommendations.push(`Address ${metrics.failedTests} failed test(s) to improve stability`);
}
if (metrics.visualChanges > 5) {
recommendations.push('High number of visual changes detected - review for unintended UI modifications');
}
if (metrics.criticalIssues > 0) {
recommendations.push(`${metrics.criticalIssues} critical issue(s) require immediate attention`);
}
if (metrics.stabilityScore >= 90) {
recommendations.push('Excellent UI stability - current development practices are working well');
}
if (recommendations.length === 0) {
recommendations.push('UI stability is good - continue current development practices');
}
return recommendations;
}
/**
* Parse time range string to milliseconds
*/
parseTimeRange(timeRange) {
const match = timeRange.match(/^(\d+)([hmd])$/);
if (!match)
return 3600000; // Default to 1 hour
const value = parseInt(match[1]);
const unit = match[2];
switch (unit) {
case 'h': return value * 3600000; // hours to ms
case 'm': return value * 60000; // minutes to ms
case 'd': return value * 86400000; // days to ms
default: return 3600000;
}
}
/**
* Add screenshot record (called by test integrations)
*/
addScreenshot(screenshot) {
this.screenshots.push({
id: nanoid(),
timestamp: Date.now(),
...screenshot
});
}
/**
* Get integration status
*/
getIntegrationStatus(integrationId) {
return this.activeIntegrations.get(integrationId);
}
/**
* Cleanup integrations
*/
cleanup() {
this.activeIntegrations.clear();
this.screenshots = [];
}
}
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