improve unit test stability while using uuid (#3144)

packages/loot-core/src/mocks/setup.ts

@@ -58,6 +58,17 @@ jest.mock('uuid', () => ({
     return 'id' + _id++;
   },
 }));
+jest.mock('../server/migrate/migrations', () => {
+  const realMigrations = jest.requireActual('../server/migrate/migrations');
+  return {
+    ...realMigrations,
+    migrate: async db => {
+      _id = 100_000_000;
+      await realMigrations.migrate(db);
+      _id = 1;
+    },
+  };
+});
 
 global.getDatabaseDump = async function (tables) {
   if (!tables) {

upcoming-release-notes/3144.md

+---
+category: Maintenance
+authors: [MatissJanis]
+---
+
+Unit tests: improve the reliability of unique ids.