Notsi

A reactive, modern Notes Android application built with SQLDelight and Clean Architecture principles.

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📱 Screenshots

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🛠 Tech Stack & Architecture

Notsi follows Modern Android Development (MAD) practices and uses MVVM with Clean Architecture.

• Language: Kotlin
• Local Database: SQLDelight - Type-safe SQL for Kotlin.
• Dependency Injection: Hilt
• Asynchronous Programming: Coroutines & Flow
• Jetpack Libraries:
  • Navigation Components
  • ViewModel
  • ViewBinding
  • Lifecycle

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🧪 Testing Strategy

The project is heavily tested across all layers to ensure stability and correctness:

1. Unit Tests (app/src/test)

• ViewModel Tests: Validates UI logic and state using InstantTaskExecutorRule.
• Data Source Tests: In-memory integration tests for SQLDelight queries using Robolectric.
• Mappers: Ensures data conversion between layers is accurate.
• Libraries:
  • JUnit4 - The fundamental testing framework.
  • Truth - Fluent assertions for Kotlin/Java.
  • Turbine - A small testing library for Kotlin Flow.
  • Robolectric - Industry-standard unit testing framework for Android.
  • Mockito - Mocking framework for unit tests.

2. Instrumented Tests (app/src/androidTest)

• Fragment Isolation Tests: Testing UI components in isolation using a custom Hilt container.
• End-to-End (E2E) Tests: Full user flow verification from adding a note to seeing it in the list.
• Libraries:
  • Espresso - Native UI testing framework.
  • Hilt Testing - For dependency injection in instrumented tests.
  • Mockito-Android - Mockito support for Android instrumented tests.

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🚀 CI/CD Pipeline

The project uses GitHub Actions for automation:

• Continuous Integration: Every pull request/manual trigger triggers a full test suite run (./gradlew testDebugUnitTest).
• Continuous Deployment: On successful build and test completion, the debug APK is automatically distributed to Firebase App Distribution for testers.