добавил систему миграций и связь одной записи Redmine с несколькими активностями Clockify и запретил отправку трудочасов при инициализации базы данных

tests/test_migrations.py

@@ -0,0 +1,78 @@
+"""Тесты применения миграций локальной базы данных."""
+
+from pathlib import Path
+from tempfile import TemporaryDirectory
+from unittest import TestCase
+
+from db.db import Database
+
+
+class MigrationTestCase(TestCase):
+    """Проверяет миграцию связи Redmine с активностями Clockify."""
+
+    def test_migration_creates_one_to_many_relation_and_runs_once(self):
+        """Миграция переносит связь и не выполняется повторно."""
+        with TemporaryDirectory() as directory:
+            db_path = Path(directory) / "tracker.db"
+            db = Database(str(db_path), "config/RedmineTracker.sql")
+
+            db.run_migrations("migrations")
+            db.run_migrations("migrations")
+
+            activity_columns = {
+                row[1]
+                for row in db.cursor.execute("PRAGMA table_info(activity)").fetchall()
+            }
+            time_entry_columns = {
+                row[1]
+                for row in db.cursor.execute("PRAGMA table_info(time_entry)").fetchall()
+            }
+            migration = db.cursor.execute(
+                "SELECT name, executed_at FROM migration"
+            ).fetchall()
+            activity_foreign_keys = {
+                row[3]: row[2]
+                for row in db.cursor.execute(
+                    "PRAGMA foreign_key_list(activity)"
+                ).fetchall()
+            }
+
+            self.assertIn("time_entry_id", activity_columns)
+            self.assertNotIn("activity_id", time_entry_columns)
+            self.assertEqual(activity_foreign_keys["time_entry_id"], "time_entry")
+            self.assertEqual(len(migration), 1)
+            self.assertEqual(
+                migration[0][0],
+                "a7f3c9e1_redmine_clockify_relation.py",
+            )
+            self.assertIsNotNone(migration[0][1])
+            db.con.close()
+
+    def test_multiple_activities_can_reference_one_time_entry(self):
+        """Несколько активностей Clockify могут ссылаться на одну запись Redmine."""
+        with TemporaryDirectory() as directory:
+            db_path = Path(directory) / "tracker.db"
+            db = Database(str(db_path), "config/RedmineTracker.sql")
+            db.run_migrations("migrations")
+            db.cursor.execute("PRAGMA foreign_keys = OFF")
+            db.cursor.execute(
+                """INSERT INTO time_entry(
+                       id, description, date, time_spent,
+                       task_id, activity_type_id, author_id
+                   ) VALUES(42, 'Работа', '2026-07-14', 1, 51906, 9, 1)"""
+            )
+            for activity_id in ("first", "second"):
+                db.cursor.execute(
+                    """INSERT INTO activity(
+                           id, description, author_id, time_spent, date_start,
+                           tag_id, time_entry_id
+                       ) VALUES(?, 'Работа', 1, 0.5, '2026-07-14', 'tag', 42)""",
+                    (activity_id,),
+                )
+
+            count = db.cursor.execute(
+                "SELECT COUNT(*) FROM activity WHERE time_entry_id = 42"
+            ).fetchone()[0]
+
+            self.assertEqual(count, 2)
+            db.con.close()