Having trouble running Sequelize in my project (Jest)

Source:
GitHub

Error:

 FAIL  src/tests/db_controller.test.js
  ā— Test suite failed to run

    TypeError: require(...) is not a function

    > 1 | const Sequelize = require("sequelize");
        | ^
      2 | const { DBController } = require("../controllers/db_controller");
      3 | const db_options = require("../databases/database.options.json");
      4 | const { build_model } = require("../models/model_builder");