testability-scoring

AI-powered testability assessment using 10 principles of intrinsic testability with Playwright. Evaluates web applications against Observability, Controllability, Algorithmic Simplicity, Transparency, Stability, Explainability, Unbugginess, Smallness, Decomposability, and Similarity. Use when assessing software testability, evaluating test readiness, identifying testability improvements, or generating testability reports.

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Repositorio: proffesor-for-testing/sentinel-api-testing
Última actividad en el origen: 8 de diciembre de 2025 a las 14:35
Idioma detectado de SKILL.md: inglés
Estrellas: 44
Forks: 12

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name	testability-scoring
description	AI-powered testability assessment using 10 principles of intrinsic testability with Playwright. Evaluates web applications against Observability, Controllability, Algorithmic Simplicity, Transparency, Stability, Explainability, Unbugginess, Smallness, Decomposability, and Similarity. Use when assessing software testability, evaluating test readiness, identifying testability improvements, or generating testability reports.
category	testing-methodologies
priority	high
tokenEstimate	1100
agents	["qe-quality-analyzer","qx-partner","qe-visual-tester"]
implementation_status	optimized
optimization_version	2.1
last_optimized	2025-12-03T00:00:00.000Z
dependencies	[]
quick_reference_card	true
tags	["testability","scoring","playwright","assessment","10-principles","intrinsic-testability","james-bach","michael-bolton"]
contributor	@fndlalit

Testability Scoring

<default_to_action> When assessing testability:

RUN assessment against target URL
ANALYZE all 10 principles automatically
GENERATE HTML report with radar chart
PRIORITIZE improvements by impact/effort
INTEGRATE with QX Partner for holistic view

Quick Assessment:

# Run assessment on any URL
TEST_URL='https://example.com/' npx playwright test tests/testability-scoring/testability-scoring.spec.js --project=chromium --workers=1

# Or use shell script wrapper
.claude/skills/testability-scoring/scripts/run-assessment.sh https://example.com/

The 10 Principles at a Glance:

Principle	Weight	Key Question
Observability	15%	Can we see what's happening?
Controllability	15%	Can we control the application?
Algorithmic Simplicity	10%	Are behaviors predictable?
Algorithmic Transparency	10%	Can we understand what it does?
Algorithmic Stability	10%	Does behavior remain consistent?
Explainability	10%	Is the interface understandable?
Unbugginess	10%	How error-free is it?
Smallness	10%	Are components appropriately sized?
Decomposability	5%	Can we test parts in isolation?
Similarity	5%	Is the tech stack familiar?

Grade Scale:

A (90-100): Excellent testability
B (80-89): Good testability
C (70-79): Adequate testability
D (60-69): Below average

Method	Command	When to Use
Shell Script	`./scripts/run-assessment.sh URL`	One-time assessment
ENV Override	`TEST_URL='URL' npx playwright test...`	CI/CD integration
Config File	Update `tests/testability-scoring/config.js`	Repeated runs

Principle	Measures	Indicators
Observability	State visibility, logging, monitoring	Console output, network tracking, error visibility
Controllability	Input control, state manipulation	API access, test data injection, determinism

Principle	Measures	Indicators
Simplicity	Predictable behavior	Clear I/O relationships, low complexity
Transparency	Understanding what system does	Visible processes, readable code
Stability	Consistent behavior	Change resilience, maintainability
Explainability	Interface understanding	Good docs, semantic structure, help text
Unbugginess	Error-free operation	Console errors, warnings, runtime issues
Smallness	Component size	Element count, script bloat, page complexity

1. Navigate to URL → 2. Collect Metrics → 3. Score Principles
                                              ↓
4. Generate JSON ← 5. Calculate Grades ← 6. Apply Weights
         ↓
7. Generate HTML Report with Radar Chart
         ↓
8. Open in Browser (auto-opens)

tests/reports/
├── testability-results-<timestamp>.json  # Raw data
├── testability-report-<timestamp>.html   # Visual report
└── latest.json                           # Symlink

# GitHub Actions
- name: Testability Assessment
  run: |
    timeout 180 .claude/skills/testability-scoring/scripts/run-assessment.sh ${{ env.APP_URL }}

- name: Upload Reports
  uses: actions/upload-artifact@v3
  with:
    name: testability-reports
    path: tests/reports/testability-*.html

// Combine testability with QX analysis
const qxAnalysis = await Task("QX Analysis", {
  target: 'https://example.com',
  integrateTestability: true
}, "qx-partner");

// Returns combined insights:
// - QX Score: 78/100
// - Testability Integration: Observability 72/100
// - Combined Insight: Low observability may mask UX issues

import { runTestabilityAssessment } from './testability';

const results = await runTestabilityAssessment('https://example.com');
console.log(`Overall: ${results.overallScore}/100 (${results.grade})`);
console.log('Recommendations:', results.recommendations);

// Run testability assessment
const assessment = await Task("Testability Assessment", {
  url: 'https://example.com',
  generateReport: true,
  openBrowser: true
}, "qe-quality-analyzer");

// Use with QX Partner for holistic analysis
const qxReport = await Task("Full QX Analysis", {
  target: 'https://example.com',
  integrateTestability: true,
  detectOracleProblems: true
}, "qx-partner");

aqe/testability/
├── assessments/*       - Assessment results by URL
├── historical/*        - Historical scores for trend analysis
├── recommendations/*   - Improvement recommendations
└── integration/*       - QX integration data

const testabilityFleet = await FleetManager.coordinate({
  strategy: 'testability-assessment',
  agents: [
    'qe-quality-analyzer',  // Primary assessment
    'qx-partner',           // UX integration
    'qe-visual-tester'      // Visual validation
  ],
  topology: 'sequential'
});

Issue	Solution
Tests timing out	Increase timeout: `timeout 300 ./scripts/run-assessment.sh URL`
Partial results	Check console errors, increase network timeout
Report not opening	Use `AUTO_OPEN=false`, open manually
Config not updating	Use `TEST_URL` env var instead