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UbiCity Testing Report

Table of Contents

Executive Summary

This report documents the testing and fixes applied to the UbiCity project to enable Deno compatibility. The project has been migrated from Node.js-specific patterns to Deno-compatible code while maintaining full functionality.

Environment

  • Platform: Linux 6.17.12-300.fc43.x86_64

  • Deno Version: 1.45.0

  • Date: 2025-12-29

  • Project: ubicity

  • Location: /var$HOME/repos/ubicity

Issues Fixed

1. deno.json Configuration Errors

Problem: The deno.json configuration referenced .ts files that did not exist. The actual source files were .js.

Files Affected:

  • deno.json - exports and task definitions

Fix Applied:

  • Changed exports from ./src/index.ts to ./src/index.js

  • Updated all task definitions to reference .js files instead of .ts

  • Changed compile:cli and compile:capture to use .js files

  • Set checkJs: false since the project uses plain JavaScript without type annotations

2. Node.js Import Compatibility

Problem: Source files used bare Node.js module imports without the node: prefix, which is required in Deno.

Files Fixed:

  • /var$HOME/repos/ubicity/src/mapper.js - crypto → node:crypto

  • /var$HOME/repos/ubicity/src/storage.js - fs, path, url → node:fs, node:path, node:url

  • /var$HOME/repos/ubicity/src/capture.js - readline/promises → node:readline/promises

  • /var$HOME/repos/ubicity/src/export.js - fs → node:fs

  • /var$HOME/repos/ubicity/src/performance.js - perf_hooks → node:perf_hooks

  • /var$HOME/repos/ubicity/src/privacy.js - crypto → node:crypto

  • /var$HOME/repos/ubicity/src/import.js - fs → node:fs

3. CLI Scripts Node.js Globals

Problem: CLI scripts used Node.js global variables (process.argv, process.exit) which are not available in Deno.

Files Fixed:

  • /var$HOME/repos/ubicity/src/cli.js:

    • Changed process.argv.slice(2) to Deno.args

    • Changed process.exit() to Deno.exit()

    • Updated shebang to #!/usr/bin/env -S deno run --allow-read --allow-write

  • /var$HOME/repos/ubicity/src/capture.js:

    • Changed process.argv[2] to Deno.args[0]

    • Changed process.exit() to Deno.exit()

    • Changed import.meta.url === \`file://${process.argv[1]}\` to import.meta.main

    • Updated shebang to #!/usr/bin/env -S deno run --allow-read --allow-write

    • Changed stdin/stdout from node:process to Deno.stdin/Deno.stdout

Test Results

Test Suite Summary

All 44 tests pass successfully.

Test File Tests Status

tests/core.test.ts

5

PASS

tests/export.test.js

4

PASS

tests/export.test.ts

5

PASS

tests/mapper.test.js

9

PASS

tests/mapper.test.ts

5

PASS

tests/privacy.test.js

5

PASS

tests/privacy.test.ts

6

PASS

tests/schemas.test.js

5

PASS

Total

44

ALL PASS

Test Details

Core Tests (core.test.ts)

  • LearningExperience validation

  • Data persistence

  • ID generation uniqueness

  • Timestamp validation

  • Domain array handling

Export Tests (export.test.js, export.test.ts)

  • CSV format generation

  • GeoJSON format generation

  • DOT graph format generation

  • Markdown format generation

  • CSV escaping special characters

Mapper Tests (mapper.test.js, mapper.test.ts)

  • LearningExperience generates ID if not provided

  • LearningExperience generates timestamp if not provided

  • UrbanKnowledgeMapper initializes indices

  • captureExperience updates indices

  • findInterdisciplinaryConnections identifies multi-domain experiences

  • mapByLocation aggregates experiences

  • getLearnerJourney tracks timeline

  • generateDomainNetwork creates edges

  • findLearningHotspots filters by diversity

  • Hotspot detection

  • Domain network generation

  • Learner journey tracking

  • Interdisciplinary connections

  • Diversity score calculation

Privacy Tests (privacy.test.js, privacy.test.ts)

  • anonymizeLearner hashes learner IDs consistently

  • anonymizeLocation fuzzes coordinates

  • removePII sanitizes email addresses

  • removePII sanitizes phone numbers

  • fullyAnonymize applies all anonymization

  • Learner ID anonymization

  • Location fuzzing

  • PII removal from text

  • Privacy level enforcement

  • Data minimization

  • Shareable dataset generation

Schema Tests (schemas.test.js)

  • minimal valid experience passes validation

  • experience with full metadata passes validation

  • missing required fields fails validation

  • invalid coordinates fail validation

  • validateExperience throws on invalid data

CLI Verification

Available Tasks

deno task start     # Run CLI
deno task capture   # Capture a learning experience
deno task report    # Generate analysis report
deno task hotspots  # Find learning hotspots
deno task stats     # Show storage statistics
deno task test      # Run tests
deno task fmt       # Format code
deno task lint      # Lint code

CLI Help Output

UbiCity - Urban Learning Capture System
============================================================

Usage: ubicity <command> [options]

Commands:
  capture      Capture a learning experience
  report       Generate full analysis report
  hotspots     Find learning hotspots
  network      Show domain connection network
  learner      Show journey for a specific learner
  stats        Show storage statistics
  help         Show this help message

Stats Output

Storage Statistics:
============================================================
  Directory: /var$HOME/repos/ubicity/ubicity-data
  Total Experiences: 8
  Total Size: 12.05 KB
  Loaded in Memory: 8

Lint Status

35 lint issues remain (primarily no-unused-vars and require-await warnings). These are non-critical and do not affect functionality.

Formatting

Code has been formatted with deno fmt. All source files are now consistent with Deno’s formatting standards.

Recommendations

  1. Consider TypeScript Migration: The project uses JavaScript with JSDoc. Converting to TypeScript would improve type safety.

  2. Address Lint Warnings: Remove unused imports and fix async function declarations.

  3. Add CI/CD: Set up GitHub Actions with Deno for automated testing.

  4. Version Pin Dependencies: The deno.json uses ^ version constraints; consider pinning for reproducibility.

Conclusion

The UbiCity project has been successfully tested and fixed for Deno compatibility. All 44 tests pass, the CLI works correctly, and the codebase has been formatted. The project is now fully functional with Deno 1.45.0.