Class TestClass

src/__tests__/trackEventMethodDecorator.test.js:19–33

    const spyTestEvent = jest.fn();

    class TestClass {
      constructor() {
        this.props = {
          tracking: {
            trackEvent,
          },
        };
      }

      @trackEventMethodDecorator(trackingData)
      // eslint-disable-next-line class-methods-use-this
      handleTestEvent(x) {
        spyTestEvent(x);
      }
    }

    const myTC = new TestClass();
    myTC.handleTestEvent('x');