feat(runtime): implement single-article consolidation runtime and modularize codebase

tests/runtime/unit/test_sqlite_store.py

@@ -0,0 +1,43 @@
+"""Unit tests for SQLite WAL state persistence and native backup/restore."""
+
+from pathlib import Path
+
+from src.runtime.storage.sqlite_store import SQLiteStore
+
+
+def test_sqlite_claim_and_transitions(tmp_path: Path):
+    db_file = tmp_path / "test.db"
+    store = SQLiteStore(db_file)
+
+    fp = "e" * 64
+    is_new, rec = store.claim_or_get_execution(fp, "https://example.com", "trafilatura", "1.0.0")
+    assert is_new is True
+    assert rec["current_status"] == "received"
+
+    # Transition to validated
+    store.record_transition(fp, "validated", reason="Passed pre-call checks")
+    updated = store.get_execution(fp)
+    assert updated is not None
+    assert updated["current_status"] == "validated"
+
+
+def test_sqlite_native_backup_and_restore(tmp_path: Path):
+    db_file = tmp_path / "main.db"
+    backup_file = tmp_path / "backup.db"
+
+    store = SQLiteStore(db_file)
+    fp = "b" * 64
+    store.claim_or_get_execution(fp, "https://example.com/backup", "trafilatura", "1.0.0")
+
+    # Native backup
+    store.backup_db(backup_file)
+    assert backup_file.exists()
+
+    # Create new store from restored db
+    restore_target = tmp_path / "restored.db"
+    new_store = SQLiteStore(restore_target)
+    new_store.restore_db(backup_file)
+
+    rec = new_store.get_execution(fp)
+    assert rec is not None
+    assert rec["source_url"] == "https://example.com/backup"