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import ServersExporter from '../../../src/servers/services/ServersExporter'; |
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describe('ServersExporter', () => { |
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const createLinkMock = () => ({ |
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setAttribute: jest.fn(), |
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click: jest.fn(), |
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style: {}, |
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}); |
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const createWindowMock = (isIe10 = true) => ({ |
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navigator: { |
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msSaveBlob: isIe10 ? jest.fn() : undefined, |
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}, |
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document: { |
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createElement: jest.fn(() => createLinkMock()), |
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body: { |
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appendChild: jest.fn(), |
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removeChild: jest.fn(), |
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}, |
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}, |
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}); |
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const storageMock = { |
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get: jest.fn(() => ({ |
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abc123: { |
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id: 'abc123', |
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name: 'foo', |
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}, |
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def456: { |
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id: 'def456', |
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name: 'bar', |
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}, |
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})), |
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}; |
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const createCsvjsonMock = (throwError = false) => ({ |
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toCSV: jest.fn(() => { |
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if (throwError) { |
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throw new Error(''); |
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} |
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return ''; |
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}), |
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}); |
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describe('exportServers', () => { |
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let originalConsole; |
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beforeEach(() => { |
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originalConsole = global.console; |
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global.console = { error: jest.fn() }; |
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global.Blob = class Blob {}; |
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global.URL = { createObjectURL: () => '' }; |
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}); |
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afterEach(() => { |
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global.console = originalConsole; |
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jest.clearAllMocks(); |
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}); |
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it('logs an error if something fails', () => { |
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const csvjsonMock = createCsvjsonMock(true); |
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const exporter = new ServersExporter(storageMock, createWindowMock(), csvjsonMock); |
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exporter.exportServers(); |
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expect(global.console.error).toHaveBeenCalledTimes(1); |
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expect(csvjsonMock.toCSV).toHaveBeenCalledTimes(1); |
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}); |
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it('makes use of msSaveBlob API when available', () => { |
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const windowMock = createWindowMock(); |
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const exporter = new ServersExporter(storageMock, windowMock, createCsvjsonMock()); |
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exporter.exportServers(); |
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expect(storageMock.get).toHaveBeenCalledTimes(1); |
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expect(windowMock.navigator.msSaveBlob).toHaveBeenCalledTimes(1); |
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expect(windowMock.document.createElement).not.toHaveBeenCalled(); |
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}); |
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it('makes use of download link API when available', () => { |
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const windowMock = createWindowMock(false); |
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const exporter = new ServersExporter(storageMock, windowMock, createCsvjsonMock()); |
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exporter.exportServers(); |
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expect(storageMock.get).toHaveBeenCalledTimes(1); |
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expect(windowMock.document.createElement).toHaveBeenCalledTimes(1); |
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expect(windowMock.document.body.appendChild).toHaveBeenCalledTimes(1); |
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expect(windowMock.document.body.removeChild).toHaveBeenCalledTimes(1); |
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}); |
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}); |
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}); |
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shlinkio /
shlink-web-client
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This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed.
To learn more about declaring variables in Javascript, see the MDN.