shlink-web-client/test/servers/services/ServersExporter.test.ts

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import { Mock } from 'ts-mockery';
import ServersExporter from '../../../src/servers/services/ServersExporter';
import { LocalStorage } from '../../../src/utils/services/LocalStorage';
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import { appendChild, removeChild, windowMock } from '../../__mocks__/Window.mock';
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describe('ServersExporter', () => {
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const storageMock = Mock.of<LocalStorage>({
get: jest.fn(() => ({
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abc123: {
id: 'abc123',
name: 'foo',
autoConnect: true,
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},
def456: {
id: 'def456',
name: 'bar',
autoConnect: false,
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},
})),
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});
const erroneousToCsv = jest.fn(() => {
throw new Error('');
});
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const createCsvjsonMock = (throwError = false) => (throwError ? erroneousToCsv : jest.fn(() => ''));
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beforeEach(jest.clearAllMocks);
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describe('exportServers', () => {
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let originalConsole: Console;
const error = jest.fn();
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beforeEach(() => {
originalConsole = global.console;
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global.console = Mock.of<Console>({ error });
(global as any).Blob = class Blob {};
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(global as any).URL = { createObjectURL: () => '' };
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});
afterEach(() => {
global.console = originalConsole;
});
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it('logs an error if something fails', () => {
const csvjsonMock = createCsvjsonMock(true);
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const exporter = new ServersExporter(storageMock, windowMock, csvjsonMock);
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exporter.exportServers();
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expect(error).toHaveBeenCalledTimes(1);
expect(erroneousToCsv).toHaveBeenCalledTimes(1);
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});
it('makes use of download link API', () => {
const exporter = new ServersExporter(storageMock, windowMock, createCsvjsonMock());
const { document: { createElement } } = windowMock;
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exporter.exportServers();
expect(storageMock.get).toHaveBeenCalledTimes(1);
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expect(createElement).toHaveBeenCalledTimes(1);
expect(appendChild).toHaveBeenCalledTimes(1);
expect(removeChild).toHaveBeenCalledTimes(1);
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});
});
});