sentry/tests/js/spec/stores/alertStore.spec.jsx

import AlertStore from 'app/stores/alertStore';

jest.mock('app/utils/localStorage');

describe('AlertStore', function() {
  beforeEach(function() {
    AlertStore.alerts = [];
    AlertStore.count = 0;
  });

  describe('onAddAlert()', function() {
    it('should add a new alert with incrementing key', function() {
      AlertStore.onAddAlert({
        message: 'Bzzzzzzp *crash*',
        type: 'error',
      });

      AlertStore.onAddAlert({
        message: 'Everything is super',
        type: 'info',
      });

      expect(AlertStore.alerts).toHaveLength(2);
      expect(AlertStore.alerts[0].key).toEqual(0);
      expect(AlertStore.alerts[1].key).toEqual(1);
    });
  });

  describe('onCloseAlert()', function() {
    it('should remove alert', function() {
      AlertStore.alerts = [
        {key: 1, message: 'foo', type: 'error'},
        {key: 2, message: 'bar', type: 'error'},
        {key: 3, message: 'baz', type: 'error'},
      ];

      AlertStore.onCloseAlert(AlertStore.alerts[1]);

      expect(AlertStore.alerts).toHaveLength(2);
      expect(AlertStore.alerts[0].key).toEqual(1);
      expect(AlertStore.alerts[1].key).toEqual(3);
    });
    it('should persist removal of persistent alerts', function() {
      let alert = {key: 1, id: 'test', message: 'foo', type: 'error'};
      AlertStore.onCloseAlert(alert);
      AlertStore.onAddAlert(alert);
      expect(AlertStore.alerts).toHaveLength(0);
    });
  });
});