How to test jest + sequelize?

Question

Node.js

Good afternoon, I'm groaning trying to write integration tests.
When it came to the database, there were problems, because sequelize.sync({ force: true });sometimes it works, sometimes it doesn’t, randomly.

Now the test files look like this:

const CategoryModel = require('../CategoryModel'); // sequelize model

beforeAll(async () => {
  await CategoryModel.sync({ force: true });
  await CategoryModel.bulkCreate([ /* массив данных для вставки */ ]);
});

// далее сами тесты ...

But sequelize is behaving very strangely, randomly outputting these errors:

1. bulkCreate() - [SequelizeDatabaseError]: Table 'shop_test.categories' does not exist
2. bulkCreate() - [SequelizeUniqueConstraintError]: Validation error. (Duplicate entry 'spoons' for key 'categories.slug')

How is this possible? after all , the .sync method with force: true deletes the table, then creates it according to the

jest scheme, I run it with flags:
"test": "jest --runInBand --detectOpenHandles"