GeoChat v0.2.0 – Deterministic Propagation, Coroutine Scoping, and Test Enhancements

Released by @Danix002 – Sep 12, 2025

✨ New Features

• Added deterministic chat message propagation test for predictable multi-device scenarios.
• Introduced getCurrentListOfMessages() utility to retrieve the current snapshot of messages.
• Added TimeProvider interface to abstract current time access.
• Added dumpJobs utility in ViewModels to inspect coroutine jobs.
• Enhanced message propagation logic and parameter refactoring.
• Multi-source message propagation improved and aggregated via Uuid.

🛠 Improvements

• Extended CoroutineScope in ViewModels for safer coroutine management.
• Unified heartbeat generation in NearbyDevicesViewModel.
• Refactored dynamic movement and message propagation tests for cleaner scoping.
• Improved GPS/location error handling and fallback strategies.
• UI improvements for username input and general style consistency.
• Project structure reorganized for better maintainability.

🐛 Fixes

• Fixed assignment of messages to indirect neighbors within a range.
• Corrected _received list type assignments and message distance rounding bugs.
• Fixed test initialization and coroutine handling (externalScope, completionChannel, stopping all device coroutines).
• Consolidated test fixes, removed unfinished tests, and introduced FakeMailbox.

🧪 Testing

• Migrated simulated chat and distance tests from runBlocking to runTest.
• Added enhanced test coverage for multi-device simulation, message collection, and propagation order.
• Ensured connection and neighbor discovery tests terminate correctly.
• Added TestParams data class to track device simulation state.

📖 Documentation

• Added KDoc for ViewModels and updated README with simulation references.
• Documented test behaviors and message propagation details.