chore: add CI automated testing

Author: insistence

.github/workflows/test.yml

@@ -0,0 +1,91 @@
+name: Test
+
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
+
+    steps:
+      - uses: actions/checkout@v5
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -e .
+          pip install -r requirements-dev.txt
+
+      - name: Install browser for testing (Ubuntu)
+        if: matrix.os == 'ubuntu-latest'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y chromium-browser chromium-chromedriver xvfb
+
+      - name: Install browser for testing (macOS)
+        if: matrix.os == 'macos-latest'
+        run: |
+          brew install --cask chromium chromedriver
+
+      - name: Install browser for testing (Windows)
+        if: matrix.os == 'windows-latest'
+        run: |
+          choco install chromium chromedriver
+
+      - name: Start virtual display (Ubuntu)
+        if: matrix.os == 'ubuntu-latest'
+        run: |
+          export DISPLAY=:99
+          Xvfb :99 -screen 0 1024x768x24 > /dev/null 2>&1 &
+
+      - name: Run tests
+        run: |
+          python -m pytest tests/ --cov=dash_vite_plugin --cov-report=xml
+        env:
+          DISPLAY: :99
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v5
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+        with:
+          file: ./coverage.xml
+          flags: unittests
+          name: codecov-umbrella
+
+  lint-format:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.10"
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -e .
+          pip install ruff
+
+      - name: Run linting
+        run: |
+          ruff check .
+
+      - name: Run format check
+        run: |
+          ruff format . --check