application/__tests__/components/app-test.js

jest.unmock('./../../components/app');

import React from 'react';
import ReactDOM from 'react-dom';
import TestUtils from 'react-addons-test-utils';
import Immutable from 'immutable';
import sinon from 'sinon';
import AltTestingUtils from 'alt-utils/lib/AltTestingUtils';

import App from './../../components/app';

import Spashy from './../../components/common/splashy';
import DropZone from './../../components/common/dropzone';

describe('AppComponent', () => {
    let spy;

    beforeEach(() => {
        jasmine.clock().uninstall();
        jasmine.clock().install();
    });

    afterEach(() => {
        jasmine.clock().uninstall();
    });

    it('loads spash screen', () => {

        const app = TestUtils.renderIntoDocument(
            <App />
        );
        const node = ReactDOM.findDOMNode(app);

        const splash = TestUtils.scryRenderedComponentsWithType(app, Spashy);

        expect(app.state.shouldStart).toEqual(false);
        expect(splash.length).toEqual(1);
    });

    it('loads app after 2 seconds', () => {

        const app = TestUtils.renderIntoDocument(
            <App />
        );
        const node = ReactDOM.findDOMNode(app);

        const splash = TestUtils.scryRenderedComponentsWithType(app, Spashy);

        expect(app.state.shouldStart).toEqual(false);
        expect(splash.length).toEqual(1);

        jasmine.clock().tick(2001);

    });

    it('loads dropzone on drag enter', () => {
        const app = TestUtils.renderIntoDocument(
            <App />
        );

        jasmine.clock().tick(2001);
        let dz = TestUtils.scryRenderedComponentsWithType(app, DropZone);
        expect(dz.length).toEqual(0);

        const node = ReactDOM.findDOMNode(app);
        TestUtils.Simulate.dragEnter(node, {});

        dz = TestUtils.scryRenderedComponentsWithType(app, DropZone);
        expect(dz.length).toEqual(1);
    });

});