Test Structure Reorganization and CI Improvements (#5)

* Add GitHub Actions CI/CD workflows and status badges

* Fix CI workflow dependency installation

* Fix CI workflow: remove pip caching and add explicit requirements.txt

* Fix CI workflow: add system dependencies for PyGObject and pycairo

* Refactor code for improved readability and consistency

- Cleaned up whitespace and formatting in audio_feedback.py, config_manager.py, keyboard_shortcuts.py, tray_indicator.py, run_basic_tests.py, and test_basic.py.
- Enhanced the structure of the code by aligning comments and ensuring consistent indentation.
- Updated function definitions and calls to maintain a uniform style across the codebase.
- Improved logging messages for better clarity during debugging.
- Ensured all files end with a newline for better compatibility with various tools.

* Refactor imports for consistency and clarity across multiple modules

* Fix test imports by setting PYTHONPATH and adding conftest.py

* Update CI workflow to use Python 3.12 and ensure proper import path in tests

* Fix CI: Add GObject Introspection development dependencies

* Update CI: Use virtual environment like local setup

* Fix CI

* Update README and setup.py: Change Python version to 3.8 and correct author email

* Restructure tests for better organization and maintainability

* Fix formatting

* Update CI workflow to remove redundant test step

* Fix CI tests by properly mocking VOSK model loading

* Update CI and Tests

* Simplify

.github/workflows/ci.yml

@@ -0,0 +1,108 @@
+name: Vocalinux CI
+
+on:
+  push:
+    branches: [ main, master ]
+    paths-ignore:
+      - '**.md'
+      - 'docs/**'
+  pull_request:
+    branches: [ main, master ]
+    paths-ignore:
+      - '**.md'
+      - 'docs/**'
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    
+    - name: Set up Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.10'
+        cache: 'pip'
+        cache-dependency-path: 'setup.py'
+    
+    - name: Install development dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install flake8 black isort
+        
+    - name: Lint with flake8
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 src/ tests/ --count --select=E9,F63,F7,F82 --show-source --statistics
+        # exit-zero treats all errors as warnings
+        flake8 src/ tests/ --count --exit-zero --max-complexity=10 --max-line-length=100 --statistics
+        
+    - name: Check formatting with black
+      run: |
+        black --check src/ tests/
+        
+    - name: Check import sorting with isort
+      run: |
+        isort --check-only --profile black src/ tests/
+
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: [3.8] 
+
+    steps:
+    - uses: actions/checkout@v3
+    
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v4
+      with:
+        python-version: ${{ matrix.python-version }}
+        cache: 'pip'
+        cache-dependency-path: 'setup.py'
+        
+    - name: Install system dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y \
+          xdotool \
+          python3-gi \
+          gir1.2-appindicator3-0.1 \
+          libcairo2-dev \
+          pkg-config \
+          python3-dev \
+          libgirepository1.0-dev \
+          gobject-introspection \
+          libcairo-gobject2 \
+          gir1.2-gtk-3.0
+    
+    - name: Cache apt packages
+      uses: actions/cache@v3
+      with:
+        path: /var/cache/apt/archives
+        key: ${{ runner.os }}-apt-${{ hashFiles('**/apt-packages.txt') }}
+        restore-keys: |
+          ${{ runner.os }}-apt-
+    
+    - name: Set up virtual environment
+      run: |
+        python -m venv venv
+        source venv/bin/activate
+        python -m pip install --upgrade pip
+        # Install the package in development mode with dev dependencies
+        python -m pip install -e ".[dev]"
+        python -m pip install pytest pytest-cov
+        echo "VIRTUAL_ENV=$VIRTUAL_ENV" >> $GITHUB_ENV
+        echo "PATH=$VIRTUAL_ENV/bin:$PATH" >> $GITHUB_ENV
+        
+    - name: Run pytest suite with coverage
+      run: |
+        source venv/bin/activate
+        # Make sure Python can find the 'src' module
+        PYTHONPATH=$PWD pytest --cov=src tests/
+        
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v3
+      with:
+        fail_ci_if_error: false