Moved CI to GHA.

.gitattributes

@@ -1,6 +1,5 @@
 # Ignore files for distribution archives.
 
-/.circleci                            export-ignore
 /.editorconfig                        export-ignore
 /.gitattributes                       export-ignore
 /.github                              export-ignore

.github/workflows/test.yml

@@ -0,0 +1,94 @@
+name: Test
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+      - 'feature/**'
+  workflow_dispatch:
+    inputs:
+      enable_terminal:
+        type: boolean
+        description: 'Enable terminal session.'
+        required: false
+        default: false
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Set up Docker Compose
+        run: docker compose up -d --build
+
+      - name: Copy codebase into container
+        run: |
+          container_id="$(docker compose ps -q phpserver)"
+          docker cp -L . "${container_id}":/app/
+
+      - name: Install Composer dependencies
+        run: docker compose exec phpserver composer install --ansi --no-suggest
+
+      - name: Lint code
+        run: docker compose exec phpserver composer lint
+        continue-on-error: ${{ vars.CI_LINT_IGNORE_FAILURE == '1' }}
+
+      - name: Restart server with Xdebug enabled
+        run: XDEBUG_ENABLE=true docker compose up -d phpserver
+
+      - name: Run tests with PHPUnit
+        run: docker compose exec -T -e XDEBUG_MODE=coverage phpserver vendor/bin/phpunit
+        continue-on-error: ${{ vars.CI_TEST_IGNORE_FAILURE == '1' }}
+
+      - name: Run tests with Behat
+        run: docker compose exec -T -e XDEBUG_MODE=coverage phpserver vendor/bin/behat
+        continue-on-error: ${{ vars.CI_TEST_IGNORE_FAILURE == '1' }}
+
+      - name: Process test logs and artifacts
+        run: |
+          mkdir -p /tmp/logs
+          if docker compose ps --services --filter "status=running" | grep -q phpserver && docker compose exec phpserver test -d /app/.logs; then
+            docker compose cp phpserver:/app/.logs/. "/tmp/logs/"
+          fi
+
+      - name: Upload artifacts
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: artifacts
+          path: /tmp/logs
+
+      - name: Upload logs as artifacts
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: logs
+          path: /tmp/logs
+          include-hidden-files: true
+          if-no-files-found: error
+
+      - name: Upload coverage report to Codecov
+        uses: codecov/codecov-action@v4
+        if: ${{ env.CODECOV_TOKEN != '' }}
+        with:
+          files: |
+            /tmp/logs/coverage/behat/cobertura.xml
+            /tmp/logs/coverage/phpunit/cobertura.xml
+          fail_ci_if_error: true
+          token: ${{ secrets.CODECOV_TOKEN }}
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+
+      - name: Setup tmate session
+        if: ${{ !cancelled() && github.event.inputs.enable_terminal }}
+        uses: mxschmitt/action-tmate@v3
+        timeout-minutes: 5