Add GitHub Actions workflow for testing

.github/workflows/test.yml

@@ -0,0 +1,33 @@
+name: Tests
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.10", "3.11", "3.12"]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - 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 ".[dev]"
+
+      - name: Run linter
+        run: make lint
+
+      - name: Run tests
+        run: pytest

src/jsonldb/database.py

@@ -68,10 +68,10 @@ def _get_from_wal(self, record_id: str) -> Record | None:
         for entry in self.wal.scan():
             if entry.record_id == record_id:
                 last_entry = entry
-        
+
         if last_entry is None:
             return None
-        
+
         if last_entry.op == "delete":
             return None
         if last_entry.op in ("insert", "update") and last_entry.data:
@@ -141,7 +141,7 @@ def count(self) -> int:
 
     def compact(self) -> int:
         compacted_records = {}
-        
+
         for record in self._scan_data():
             compacted_records[record.id] = record