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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,168 @@ | ||
| import { | ||
| exportToCSV, | ||
| exportTrendsToCSV, | ||
| exportDemographicsToCSV, | ||
| } from './chartToPdf'; | ||
|
|
||
| describe('CSV Export Functions', () => { | ||
| let mockCreateElement: jest.SpyInstance; | ||
| let mockClick: jest.SpyInstance; | ||
| let mockSetAttribute: jest.SpyInstance; | ||
|
|
||
| beforeEach(() => { | ||
| // Mock URL methods | ||
| global.URL.createObjectURL = jest.fn(() => 'mock-url'); | ||
| global.URL.revokeObjectURL = jest.fn(); | ||
|
|
||
| // Mock DOM methods | ||
| mockSetAttribute = jest.fn(); | ||
| mockClick = jest.fn(); | ||
| const mockLink = { | ||
| setAttribute: mockSetAttribute, | ||
| click: mockClick, | ||
| } as unknown as HTMLAnchorElement; | ||
|
|
||
| mockCreateElement = jest | ||
| .spyOn(document, 'createElement') | ||
| .mockReturnValue(mockLink as HTMLAnchorElement); | ||
| }); | ||
|
|
||
| afterEach(() => { | ||
| jest.clearAllMocks(); | ||
| }); | ||
|
|
||
| describe('CSV Export Functions', () => { | ||
| let mockCreateElement: jest.SpyInstance; | ||
| let mockAppendChild: jest.SpyInstance; | ||
| let mockRemoveChild: jest.SpyInstance; | ||
| let mockClick: jest.SpyInstance; | ||
| let mockSetAttribute: jest.SpyInstance; | ||
|
|
||
| beforeEach(() => { | ||
| // Mock URL methods | ||
| global.URL.createObjectURL = jest.fn(() => 'mock-url'); | ||
| global.URL.revokeObjectURL = jest.fn(); | ||
|
|
||
| // Mock DOM methods | ||
| mockSetAttribute = jest.fn(); | ||
| mockClick = jest.fn(); | ||
| const mockLink = { | ||
| setAttribute: mockSetAttribute, | ||
| click: mockClick, | ||
| parentNode: document.body, // Add this to trigger removeChild | ||
| } as unknown as HTMLAnchorElement; | ||
|
|
||
| mockCreateElement = jest | ||
| .spyOn(document, 'createElement') | ||
| .mockReturnValue(mockLink as HTMLAnchorElement); | ||
| mockAppendChild = jest | ||
| .spyOn(document.body, 'appendChild') | ||
| .mockImplementation(() => mockLink as HTMLAnchorElement); | ||
| mockRemoveChild = jest | ||
| .spyOn(document.body, 'removeChild') | ||
| .mockImplementation(() => mockLink as HTMLAnchorElement); | ||
| }); | ||
|
|
||
| test('exports data to CSV with proper formatting', () => { | ||
| const data = [ | ||
| ['Header1', 'Header2'], | ||
| ['Value1', 'Value2'], | ||
| ['Value with, comma', 'Value with "quotes"'], | ||
| ]; | ||
|
|
||
| exportToCSV(data, 'test.csv'); | ||
|
|
||
| expect(mockCreateElement).toHaveBeenCalledWith('a'); | ||
| expect(mockSetAttribute).toHaveBeenCalledWith('href', 'mock-url'); | ||
| expect(mockSetAttribute).toHaveBeenCalledWith('download', 'test.csv'); | ||
| expect(mockAppendChild).toHaveBeenCalled(); | ||
| expect(mockClick).toHaveBeenCalled(); | ||
| expect(mockRemoveChild).toHaveBeenCalled(); | ||
| expect(URL.revokeObjectURL).toHaveBeenCalledWith('mock-url'); | ||
| }); | ||
| test('throws error if data is empty', () => { | ||
| expect(() => exportToCSV([], 'test.csv')).toThrow('Data cannot be empty'); | ||
| }); | ||
|
|
||
| test('throws error if filename is empty', () => { | ||
| expect(() => exportToCSV([['data']], '')).toThrow('Filename is required'); | ||
| }); | ||
|
|
||
| test('adds .csv extension if missing', () => { | ||
| const data = [['test']]; | ||
| exportToCSV(data, 'filename'); | ||
| expect(mockSetAttribute).toHaveBeenCalledWith('download', 'filename.csv'); | ||
| }); | ||
| }); | ||
|
|
||
| describe('exportTrendsToCSV', () => { | ||
| test('exports attendance trends data correctly', () => { | ||
| const eventLabels = ['Event1', 'Event2']; | ||
| const attendeeCounts = [10, 20]; | ||
| const maleCounts = [5, 10]; | ||
| const femaleCounts = [4, 8]; | ||
| const otherCounts = [1, 2]; | ||
|
|
||
| exportTrendsToCSV( | ||
| eventLabels, | ||
| attendeeCounts, | ||
| maleCounts, | ||
| femaleCounts, | ||
| otherCounts, | ||
| ); | ||
|
|
||
| expect(mockCreateElement).toHaveBeenCalledWith('a'); | ||
| expect(mockSetAttribute).toHaveBeenCalledWith( | ||
| 'download', | ||
| 'attendance_trends.csv', | ||
| ); | ||
| expect(mockClick).toHaveBeenCalled(); | ||
| }); | ||
| }); | ||
|
|
||
| describe('exportDemographicsToCSV', () => { | ||
| test('exports demographics data correctly', () => { | ||
| const selectedCategory = 'Age Groups'; | ||
| const categoryLabels = ['0-18', '19-30', '31+']; | ||
| const categoryData = [10, 20, 15]; | ||
|
|
||
| exportDemographicsToCSV(selectedCategory, categoryLabels, categoryData); | ||
|
|
||
| expect(mockCreateElement).toHaveBeenCalledWith('a'); | ||
| expect(mockClick).toHaveBeenCalled(); | ||
| expect(mockSetAttribute).toHaveBeenCalledWith('href', 'mock-url'); | ||
| }); | ||
|
|
||
| test('throws error if selected category is empty', () => { | ||
| expect(() => exportDemographicsToCSV('', ['label'], [1])).toThrow( | ||
| 'Selected category is required', | ||
| ); | ||
| }); | ||
|
|
||
| test('throws error if labels and data arrays have different lengths', () => { | ||
| expect(() => | ||
| exportDemographicsToCSV('Category', ['label1', 'label2'], [1]), | ||
| ).toThrow('Labels and data arrays must have the same length'); | ||
| }); | ||
|
|
||
| test('creates safe filename with timestamp', () => { | ||
| jest.useFakeTimers(); | ||
| const mockDate = new Date('2023-01-01T00:00:00.000Z'); | ||
| jest.setSystemTime(mockDate); | ||
|
|
||
| const selectedCategory = 'Age & Demographics!'; | ||
| const categoryLabels = ['Group1']; | ||
| const categoryData = [10]; | ||
|
|
||
| exportDemographicsToCSV(selectedCategory, categoryLabels, categoryData); | ||
|
|
||
| const expectedFilename = | ||
| 'age___demographics__demographics_2023-01-01T00-00-00.000Z.csv'; | ||
| const downloadCalls = mockSetAttribute.mock.calls.filter( | ||
| (call) => call[0] === 'download', | ||
| ); | ||
| expect(downloadCalls[0][1]).toBe(expectedFilename); | ||
| jest.useRealTimers(); | ||
| }); | ||
| }); | ||
| }); |